Fact-checked by Grok 2 weeks ago

OP

OP, short for "original poster," is an term referring to the individual who initiates a discussion , topic, or post, distinguishing them from subsequent commenters or repliers. The abbreviation emerged in early online communities, such as imageboards like , where the lack of user handles necessitated a neutral descriptor for the thread originator, and it has since proliferated across platforms including , (now X), and gaming forums. While primarily denoting the poster, OP is sometimes used interchangeably for the "original post" itself, serving as a concise in replies to avoid in lengthy conversations. In gaming contexts, the term has acquired a secondary meaning as "overpowered," describing characters, items, or strategies deemed excessively dominant, though this usage stems from distinct evolution rather than direct overlap with origins. The term's ubiquity underscores the development of specialized in digital communication, enabling precise attribution amid pseudonymous or interactions.

Religious and historical uses

Order of Preachers

The Order of Preachers (Ordo Praedicatorum), commonly known as the , is a Roman Catholic founded by de Guzmán, a Castilian priest, in , , in 1216. Dominic established the order amid efforts to counter the Albigensian heresy () prevalent in , drawing from his experiences traveling with the Bishop of Osma and observing the need for educated preachers to refute doctrinal errors through reasoned argumentation rather than force. The order's foundational bull, Religiosam vitam, was issued by on December 22, 1216, granting formal approval and emphasizing the friars' mission to "preach everywhere" while adopting the supplemented by Dominic's constitutions focused on poverty, communal life, and rigorous study. Central to the Dominican charism is the integration of , , preaching, and life, often summarized as four pillars that sustain the order's apostolic work. Friars commit to , , and , with serving as a perpetual equivalent in importance to enable effective evangelization and defense of against challenges. This emphasis on (truth) through scholastic methods distinguished the order from earlier monastic traditions, promoting universities and theological inquiry; by 1221, Dominican houses existed in major European cities like , , and , facilitating rapid expansion to over 600 priories by the mid-14th century. The order includes friars, contemplative nuns (founded concurrently with the friars at Prouille in 1206), sisters, and lay fraternities, all united under the Master of the Order elected for a nine-year term. Notable Dominicans include Saint Thomas Aquinas (1225–1274), who systematized Catholic theology in works like the , and Saint Catherine of Siena (1347–1380), a lay tertiary whose mystical writings and diplomatic interventions influenced the return of the papacy to . The order's intellectual legacy extends to education, with Dominicans founding or staffing early universities and contributing to the Council of Trent's doctrinal clarifications in the 16th century. Today, the order numbers approximately 5,600 friars worldwide, continuing missions in preaching, academia, and while upholding its anti-heretical origins amid modern secular challenges.

Military uses

Observation post

An observation post (OP) is a designated military position occupied by a small or tasked with surveilling designated zones or avenues of approach for activity, providing early , and facilitating support such as or mortars. These posts are typically established during defensive operations, patrols, or missions to enhance and security, often integrating with listening posts for combined auditory and visual monitoring. Personnel at an OP maintain radio communications with higher or forward observers to report sightings, enabling rapid response to threats. Selection of an OP prioritizes fields of view covering likely enemy routes, natural or artificial to avoid detection, and mutual support with adjacent units, while minimizing exposure to enemy fire or —areas not observable or covered by weapons. Teams, usually two to four soldiers, employ passive techniques like , night-vision devices, or thermal imagers, rotating shifts to sustain vigilance over extended periods, such as 12-24 hours in patrol bases. Effective OPs contribute to by detecting infiltrations early, but vulnerabilities include isolation, limited , and reliance on relief rotations, which can be disrupted in contested environments. Historically, OPs have evolved with technology and tactics; during , British and Australian forces constructed camouflaged artificial trees on the Western Front, such as at Hill 63 during the Battle of Messines on June 7, 1917, allowing concealed observation amid . In the , forward OPs on perimeters like guarded against ambushes, often manned by two soldiers in bunkers or elevated positions vulnerable to . Modern doctrine, as in U.S. Army field manuals, emphasizes integration with sensors and drones for persistent surveillance, reflecting adaptations to peer conflicts where can degrade traditional visual methods.

Arts, literature, and entertainment

Opus

In music, particularly classical compositions, opus (Latin for "work") denotes a numbered creative output by a , serving as a cataloging system to indicate the sequence of publication or issuance rather than strict chronological composition order. This numbering convention emerged in the , with publishers typically assigning opus numbers upon release to distinguish works, a practice that gained prominence in the 18th and 19th centuries among composers like Beethoven, whose bears the designation Op. 125, reflecting its position in his published oeuvre. Composers or editors sometimes retroactively applied numbers, leading to inconsistencies, as early and Classical-era figures like Bach lacked systematic opus assignments, relying instead on later scholarly catalogs. Beyond music, extends to and other artistic domains as a term for a substantial or body of output, often implying a significant or representative effort by the author. In literary contexts, it describes books, essays, or compilations, with magnum opus specifically denoting an artist's or writer's crowning achievement, such as James Joyce's regarded by some critics as his definitive novel encompassing experimental techniques developed over seven years of from 1914 to 1921. This usage underscores a holistic "work" rather than isolated pieces, paralleling musical applications but without formal numbering in prose traditions. In broader entertainment, appears in titles evoking artistic legacy, as in the 1995 film , which portrays a composer's lifelong dedication to , drawing on the term's of enduring creative labor. The designation thus facilitates scholarly and performative reference across , prioritizing verifiable publication sequences over subjective dating to maintain catalog integrity.

Opera

is a form of theatrical art in which the narrative is conveyed primarily through music, with sung text, orchestral , and often elaborate staging, costumes, and scenery. Unlike spoken drama, the dialogue in opera is typically delivered in or arias, integrating vocal performance with dramatic action to create a total work of art. The term derives from the Italian opera, meaning "work" or "composition," which stems from the Latin opera, the plural of opus ("work"), reflecting the collaborative effort of composers, librettists, singers, and designers. The genre emerged in late as an attempt to revive the emotional intensity of through continuous rather than spoken verse interspersed with song. A group of intellectuals known as the Florentine Camerata, including composer and poet Ottavio Rinuccini, developed the form around 1600, with Peri's Dafne (1598) recognized as the first , though its score is lost; Euridice (1600), also by Peri with contributions from , survives as the earliest complete example. Claudio advanced the style in works like Orfeo (1607), introducing richer orchestration and emotional depth, establishing as a public spectacle in by the 1630s, where the first commercial , Teatro San Cassiano, opened in 1637. By the 18th century, dominated with its focus on mythological or heroic subjects, castrati leads, and da capo arias, exemplified by composers like and Johann Adolf Hasse. Reformers such as sought greater dramatic integration in the mid-1700s, influencing Wolfgang Amadeus Mozart's masterpieces like (1786) and (1791), which blended seria and buffa (comic) elements. The 19th century saw romantic expansions, including by and , with large-scale spectacles like Verdi's (1871), and Richard Wagner's leitmotif-driven music dramas, such as the Ring Cycle (1876), emphasizing mythic narratives and continuous symphonic texture. In the , opera evolved with realism in (e.g., Giacomo Puccini's , 1900), atonal experiments by , and neoclassical works by , while post-1945 composers like and incorporated diverse influences, from to . Today, encompasses traditional repertory alongside contemporary commissions addressing modern themes, performed in major houses like (opened 1778) and the (1883), with audiences exceeding millions annually worldwide. While some databases list "OP" as an abbreviation for , this usage lacks widespread adoption in musical scholarship, where "op." denotes (singular work) and the genre itself is not conventionally shortened to OP.

Opposite prompt

In , an opposite prompt refers to a strategic input designed to elicit responses from large language models (LLMs) that deliberately contradict, invert, or oppose a given , query, or desired output, thereby testing reasoning robustness, exposing biases, or refining model behavior. This technique contrasts with standard affirmative prompting by intentionally generating adversarial or counterfactual content, which can reveal flaws in the model's or logic. One application involves safety alignment, where opposite prompts optimize LLMs against harmful generations; for example, adversarial contrastive decoding uses such prompts to pair safe responses with oppositional unsafe ones, enhancing refusal mechanisms for queries involving violence, deception, or illegality as of studies published in 2024. Researchers demonstrated that this method improves safety scores on benchmarks like by up to 15% compared to baseline decoding, without requiring additional training data. In defensive probing of AI systems, polar opposite prompt generation inverts semantic elements of an original prompt—such as negating key verbs or flipping ethical stances—to create inputs that challenge model safeguards, as outlined in a January 2025 arXiv preprint on logic-based attacks. This two-phase approach first produces the inverted prompt, then evaluates the model's vulnerability to induced errors, achieving higher success rates in bypassing filters than random perturbations. Advanced prompting guides highlight the "argue the opposite" variant, where users instruct LLMs to robustly defend the counterposition before reconciling with the original query, reportedly yielding deeper analysis and reduced in tasks like debate simulation or , as noted in practitioner discussions from July 2025. Empirical tests in these contexts show it outperforms direct prompting by 20-30% in coherence metrics on platforms like . Creative uses extend to generative arts, where opposite prompts diversify outputs in tools like ; for instance, pairing a stylistic reference image with a semantically reversed textual description (e.g., "realistic " versus "abstract caricature") produces explorations, enabling artists to iterate on contrasts without manual rework, per community techniques documented in 2024-2025 forums.

Computing, mathematics, and

Operator

In mathematics, an is any that denotes an to be performed on quantities, such as the plus sign (+) for or the symbol (√) for extraction. More abstractly, operators function as mappings that transform elements from one set or to another, often exemplified by linear operators in that act on vector spaces or functions, preserving and . These concepts underpin fields like differential equations, where operators such as the Laplacian (∇²) describe physical phenomena including heat diffusion and wave propagation. In , an is a or keyword instructing the or interpreter to execute a specific or action on operands, which are variables, constants, or expressions. Common categories include operators (e.g., +, -, *, / for basic calculations), relational operators (e.g., ==, >, < for comparisons), logical operators (e.g., && for conjunction, || for disjunction), and bitwise operators (e.g., & for AND, | for OR on representations). Operators enable expression evaluation, with precedence rules determining order (e.g., before in most languages), and features like in object-oriented languages such as C++ allow custom definitions for user types. The abbreviation "OP" commonly denotes "" in technical contexts, such as operator precedence parsing in compilers or shorthand for operator-related constructs in code and algorithms. In low-level , it relates to operation codes (opcodes) in instructions, where an specifies the action executed by the on data.

Sysop

A , abbreviation for , denotes the individual tasked with administering and maintaining a multi-user computer , most prominently in the era of bulletin board during the and . This role encompassed overseeing hardware such as modems and personal computers, managing software for dial-up access and , and ensuring uptime amid limited resources like 2400 connections. The position gained traction following the launch of the first , , on February 16, 1978, by Ward Christensen and Randy Suess in , which relied on a single operator to handle user interactions via telephone lines. often operated independently from home setups, bearing costs for phone lines and equipment—sometimes exceeding hundreds of dollars monthly—while providing free access to messaging forums, file downloads, and games for thousands of users globally by the mid-1980s, when an estimated 10,000 existed in alone. Their duties included moderating to prevent abuse, enforcing access rules, performing backups to mitigate from power failures or hardware faults, and troubleshooting connectivity issues inherent to analog modems. In broader computing contexts, sysops predated BBS in mainframe environments of the 1960s and 1970s, where operators monitored systems like those on or DEC hardware, but the term crystallized in grassroots online culture through BBS software such as PCBoard or Wildcat!, which empowered non-professionals to run nodes. Sysops wielded significant authority, including banning disruptive users or curating specialized content for niches like or , fostering early digital communities that prefigured modern forums. With the in the , the sysop role largely transitioned to professional system administrators (sysadmins), though the title endures in retro computing scenes, MUDs (multi-user dungeons), and projects preserving BBS software.

Out of print

In publishing, the abbreviation "OP" denotes "out of print," referring to a book title or publication that the publisher has discontinued printing and actively distributing new copies of. Publishers declare a title out of print when demand no longer justifies reprinting, often after sales drop below viable thresholds, such as fewer than 100-500 copies annually depending on the contract or market. This status typically applies to physical editions, with remaining inventory sold as remainders, returned to the publisher for pulping, or recycled, though second-hand markets, libraries, and archives preserve access to used copies. The implications of a title going out of print include reduced commercial availability, which can limit readership and revenue, prompting authors to negotiate reversion clauses in contracts—often triggered by six to twelve months of unavailability or sales below a specified minimum, such as 300 copies. Reversion allows authors or heirs to republish via new deals, , or digital formats, as seen with initiatives reviving decades-old works through print-on-demand or ebooks. However, out-of-print status does not terminate protection, which endures for the author's life plus 70 years in most jurisdictions, prohibiting unauthorized copying or distribution even for unavailable works. In technical and computing contexts, such as manuals for obsolete software or documentation, out-of-print declarations accelerate obsolescence, as publishers prioritize current editions; digital archiving by institutions like the mitigates this, though legal challenges persist under copyright law. The rise of ebooks and print-on-demand since the early has blurred traditional definitions, enabling perpetual "in print" status for low-volume titles without physical stock.

Internet and online culture

Original poster

In , particularly within online forums, message boards, and platforms like , "OP" is an for "original poster," denoting the user who initiates a discussion or post. This term distinguishes the thread creator from subsequent commenters, facilitating references in replies such as "OP is correct" or "What does OP mean?" to avoid confusion in lengthy conversations. The abbreviation emerged in early online communities, including newsgroups and systems (), where thread starters needed clear identification amid growing responses, though its precise first use remains undocumented in primary sources. Usage of "OP" emphasizes the poster's role in setting the topic, often marked by platform features like Reddit's flair labeling the author as "OP" in their own thread's comments. While occasionally conflated with "original post" (referring to the content itself), context typically clarifies it as the person, as in gaming forums where "OP's strategy" points to the originator rather than the message. This distinction aids moderation and community norms, where OPs may edit posts or respond to feedback, influencing thread direction. On platforms beyond Reddit, such as 4chan or Discord, "OP" retains this function but can overlap with unrelated meanings like "overpowered" in gaming contexts, requiring syntactic cues (e.g., noun vs. adjective) for disambiguation.

Original post

In forums, platforms, and discussion , the original post (commonly abbreviated as OP) denotes the initial message that launches a or , distinguishing it from subsequent replies or comments. This usage emphasizes the content itself rather than solely its author, allowing participants to reference specific details from the starting message, such as "As stated in the OP..." to avoid repetition. The term emerged in early online communities like newsgroups and systems () in the 1980s and 1990s, where threaded discussions required clear identification of the foundational entry to maintain coherence amid growing replies. By the 2000s, it became standardized on platforms such as , , and , where the original post often includes titles, images, or polls that frame the debate. For instance, on , the OP appears prominently at the top of a thread, with its author labeled as the "original poster," but references to "OP" in comments typically invoke the post's substance. While interchangeable with "original poster" in casual shorthand, "original post" specifically highlights the artifact—the text, media, or query—that prompts engagement, aiding in navigation of long threads. This distinction supports efficient discourse but can lead to ambiguity if context is unclear, as seen in cross-platform migrations where users from communities repurpose OP for "overpowered." In structured sites like forums, the OP may include such as timestamps or edit histories, verifiable via platform tools, underscoring its role as the verifiable origin of the exchange.

Gaming and fiction

Overpowered

In gaming, "overpowered" (often abbreviated as OP) refers to a , , item, , or that provides an excessive advantage relative to other elements in the game, often rendering challenges trivial or opponents unable to compete effectively. This imbalance typically arises when the power level exceeds what is intended for , particularly in multiplayer or competitive modes like player-versus-player (PvP) encounters, where it can dominate metas and frustrate participants. Developers respond by nerfing such elements through patches to restore , as unchecked OP erode long-term engagement by diminishing skill differentiation and . The term originated as slang in gaming communities, shortening "overpowered" to describe disproportionate strength, with roots traceable to tabletop role-playing games and early digital titles where player optimization exposed design flaws. In practice, OP status is subjective and context-dependent; for instance, a high-damage weapon might be OP in low-level play but balanced at endgame, though community consensus often drives identification via forums and analytics. Notable examples include the Infinity Blade in Fortnite during its 2018 introduction, which dealt massive damage and shielded users, leading to widespread complaints and swift removal by Epic Games to prevent meta disruption. In fiction, particularly interactive narratives like games (RPGs) or story-driven titles, overpowered elements encompass characters or devices that eclipse by resolving conflicts too easily, undermining stakes and . Such designs can stem from power creep—escalating abilities to retain player interest—but risk alienating audiences seeking realism or progression; for example, protagonists like in the series wield god-slaying prowess that trivializes foes, prioritizing spectacle over balanced escalation. In multiplayer contexts, OP characters like Meta Knight in exploited recovery and speed advantages, prompting to adjust mechanics in sequels for competitive viability. Ultimately, while OP features can deliver empowering fantasies in single-player experiences, they frequently necessitate iterative balancing to sustain replayability and equity.

Organized Play

Organized play constitutes publisher-supported programs for games, particularly games (RPGs) and collectible games, featuring standardized rules, sanctioned events, and mechanisms for or progression across sessions to ensure fairness and accessibility. These initiatives typically involve local game stores, conventions, and online platforms, where participants earn rewards, maintain rankings, and adhere to guidelines that prevent exploitation while fostering community growth. In , organized play traces to the Role-Playing Game Association (RPGA), founded in the as a network for structured events and campaigns, later succeeded by the D&D Adventurers League under . The Adventurers League, launched with the 2014 edition of the game, enables players to use shared characters that retain experience, items, and story progress between different Dungeon Masters and groups, supporting both in-person and virtual play through official modules. For : The Gathering, initiated organized play following the game's 1993 debut, establishing the Duelist Convocation International in January 1994 to administer global tournaments ranging from casual Friday Night Magic events to professional circuits with substantial prize pools. These programs enforce deck construction limits, judging standards, and eligibility rules, culminating in annual championships that have drawn thousands of competitors since the late 1990s. Similar frameworks exist in other titles, such as for Paizo's RPGs, which mirrors D&D's shared model with faction-based and play since , emphasizing modular and within bounded .

One Power

In Robert Jordan's The Wheel of Time fantasy series, first published in 1990, the One Power—commonly abbreviated as OP by fans and in online discussions—serves as the foundational magical energy source wielded by individuals capable of channeling. Drawn from the True Source, it constitutes the raw, limitless force that propels the Wheel of Time's turning, thereby shaping the , the deterministic weave of reality encompassing all events and lives across Ages. This power enables channelers to perform feats ranging from elemental manipulation to complex constructs like gateways for instantaneous travel or intricate wards against intrusion. The One Power divides into two inherently complementary yet sexually dimorphic halves: saidin for males and saidar for females, each accessible only to those of the corresponding sex due to fundamental physiological differences in channeling. Male channelers typically command greater overall strength in the Power, allowing for more potent raw applications, whereas female channelers demonstrate superior precision and subtlety in weaving. Manipulation occurs through flows of the Five Powers—Air, Water, Fire, Earth, and Spirit—combined into patterns known as weaves; for instance, Fire and Air might form destructive flames, while Spirit and Water facilitate Healing to mend physical or mental damage. Individual aptitude varies widely, with strength levels inherited genetically and measurable on a spectrum; exceptional channelers, such as the Forsaken (powerful antagonists from the Age of Legends), rank among the highest, capable of feats like shattering armies or reshaping landscapes. Historically within the series' lore, the One Power fueled the utopian advancements of the Age of Legends, including advanced technology integrated with channeling, until the Dark One's prison—known as the Bore—was drilled into the True Source, corrupting saidin with a miasmic during its resealing. This contamination induced progressive insanity and physical decay in all male channelers, culminating in the Breaking of the World around 3,000 years before the main narrative, a that shattered continents and civilizations. Female channelers, unaffected by the taint on saidar, established the White Tower in Tar Valon to regulate and safeguard the Power, suppressing male channeling as a societal peril until the prophesied purified saidin in a pivotal event circa 1000 NE. The taint's effects underscore the series' themes of balance and consequence, as unchecked male channeling post-purification risks relapse into destructive patterns observed during the Breaking. Channeling carries inherent risks, including burnout—permanent loss of ability from overexertion—or stilling/gentling, deliberate severance from , historically imposed on wilders or threats. Talents, innate affinities for specific weaves like or Traveling, further diversify applications, with objects like angreal amplifying power output by focusing flows. In fan communities and adaptations, such as the series launched in 2021, OP discussions often analyze strategic uses in combat or lore implications, distinguishing it from the Dark One's , a addictive, destructive alternative drawn directly from him.

Business, science, and other technical uses

Operating profit

Operating profit, also known as operating income or (EBIT), represents the generated from a company's operations after deducting the costs directly associated with producing goods or services and other operating expenses, but before accounting for expenses, taxes, and or losses. This metric isolates the financial performance of primary activities, such as and , excluding financing decisions or items. The formula for calculating operating profit is typically expressed as gross profit minus operating expenses, where gross profit is revenue minus cost of goods sold (COGS), and operating expenses include selling, general, and administrative costs (SG&A), depreciation, and amortization, but exclude interest and taxes. For example, if a company reports $1,000,000 in revenue, $400,000 in COGS, and $300,000 in operating expenses, its operating profit would be $300,000 ($1,000,000 - $400,000 - $300,000). This calculation appears on the income statement and is standardized under generally accepted accounting principles (GAAP) or International Financial Reporting Standards (IFRS), though variations may arise in how certain expenses like restructuring costs are classified. In , operating serves as a key indicator of and management's ability to control costs relative to , providing a clearer view of core business health than net , which incorporates non-operational factors like servicing and rates. A consistently positive and growing operating suggests sustainable profitability from ongoing activities, aiding investors in comparing companies within the same industry by stripping away differences in or jurisdictions. Conversely, persistent operating losses signal underlying issues in cost management or market competitiveness, often prompting strategic reviews. Unlike net profit, which deducts interest, taxes, and one-time gains or losses to arrive at the bottom-line figure available to shareholders, operating focuses solely on operational results, making it less susceptible to distortions from financing or irregular events. For instance, two firms with identical operating s might report different net profits due to varying levels, highlighting operating profit's utility in evaluating intrinsic business performance. Analysts often derive the operating —operating profit divided by expressed as a —to benchmark efficiency, with higher margins indicating stronger cost discipline.

Output power

Output power, abbreviated as OP in technical documentation, denotes the electrical power supplied by a device, circuit, or system to its connected load, typically measured in watts (W). This metric quantifies the rate of energy transfer from the source to the load, distinguishing it from input power, which represents energy drawn from the supply. In direct current (DC) systems, output power is computed as the product of output voltage and current, P = V \times I; for alternating current (AC) systems, it incorporates the power factor to account for phase differences, yielding P = V \times I \times \cos \phi. In and , output power serves as a for components such as amplifiers, power supplies, and transducers. For instance, in audio amplifiers, maximum output power—often specified under standard test conditions like 1 kHz into an 8-ohm load—determines the device's ability to drive speakers without excessive , with values ranging from milliwatts in portable devices to kilowatts in professional systems. Power supplies are rated by their continuous output power capacity, ensuring stable delivery to loads like microprocessors or motors; exceeding this limit risks overheating or failure due to limits. In electric motors, output power reflects mechanical work produced, calculated as multiplied by , P = \tau \times \omega, where efficiency losses convert excess input to . Device specifications frequently list OP alongside derating factors, such as or load variations, to guide safe operation; for example, a 500 might derate to 400 at elevated ambient temperatures to prevent component stress. Regulatory standards, including those from the (IEC), mandate accurate OP labeling to ensure and safety in applications from to machinery. High output power correlates with greater demands on cooling and materials, influencing trade-offs between , size, and cost in fields like inverters, where photovoltaic systems aim to maximize OP under varying .

Organophosphate

Organophosphates are a class of compounds characterized by a atom bonded to oxygen and carbon, typically formed via esterification of with alcohols or . These compounds exhibit diverse chemical properties, including high reactivity due to the P-O-C bond, which facilitates their role in reactions. They are synthetically produced for industrial applications rather than occurring naturally in significant quantities. In , serve primarily as insecticides and herbicides, with examples including , , , , and , which target pests by disrupting nerve function in insects. Beyond pesticides, they function as flame retardants, plasticizers, and hydraulic fluids in industrial settings. Certain , such as (GB), tabun (), (GD), and , are G-series and V-series nerve agents developed for , valued for their extreme potency and volatility or persistence. The primary toxic mechanism of organophosphates involves irreversible inhibition of (AChE), the enzyme that hydrolyzes the at synapses, leading to its accumulation and overstimulation of muscarinic and nicotinic receptors. This results in acute , manifesting as symptoms including , , salivation, lacrimation, urination, defecation, gastrointestinal distress, and emesis (often acronymized as ), with severe cases progressing to and death. toxicity varies by compound; pesticides like require higher doses for lethality compared to nerve agents like , which has an LD50 of approximately 0.01 mg/kg via inhalation in humans. Treatment involves atropine to counter muscarinic effects and to reactivate AChE, ideally administered within hours of . Chronic low-level has been linked to neurobehavioral deficits, though causal evidence remains debated due to confounding factors in epidemiological studies.

Places

Op, Belgium

Opglabbeek is a village in the municipality of Oudsbergen, located in the northeastern part of Limburg province in the of . It occupies an area of approximately 25 km² in the sandy Campine landscape, historically focused on agriculture and forestry. The village lies about 10 km northeast of and borders natural reserves adjacent to . The local administrative entity originated from earlier rural settlements, with the modern of Opglabbeek established on January 1, 1977, via the of the former parishes of Opglabbeek proper, Louwel, and Nieuwe Kempen. This structure persisted until January 1, 2019, when Opglabbeek merged with the adjacent of Meeuwen-Gruitrode to form Oudsbergen, reflecting Belgium's municipal consolidation efforts to enhance administrative efficiency in rural areas. Population data for the Opglabbeek sub-municipality indicate steady growth, reaching 10,600 residents in the most recent official tallies from Statistics (Statbel). The density remains low at around 424 inhabitants per km², consistent with the region's rural character. Economic activity centers on farming, small-scale , and linked to equestrian sports. Opglabbeek gained prominence in circles through Sentower Park, a state-of-the-art facility opened in the 2010s that hosts international events, including FEI-sanctioned competitions such as CSI2* and youth Nations Cups. The venue features indoor and outdoor arenas, drawing participants and spectators from across and contributing to local employment and visibility. Archaeological evidence from sites like Ruiterskuil points to prehistoric human activity in the area, including settlements tied to early farming communities.

Op, Netherlands

Op is a small hamlet (buurtschap) in the municipality of Echt-Susteren, province of Limburg, in the southeastern . It lies south of the town of Echt, adjacent to the Julianakanaal canal, within a rural area characterized by flat to gently rolling terrain typical of the region's valley landscape. The settlement features limited infrastructure, with notable structures including the Hammerhof, an 18th-century farm designated as a local monument, reflecting traditional agricultural heritage in Limburg. As a minor locality, Op lacks independent administrative status and is integrated into the broader municipal governance of Echt-Susteren, which was formed on January 1, 2003, by merging the former municipalities of Echt and Susteren. Population data specific to the hamlet is not separately tracked by national statistics, indicative of its scale as a sparsely populated rural outpost.

References

  1. [1]
    Does OP mean “original poster” or “original post”?
    Dec 30, 2017 · 1. (OP) In online forums, short for original poster (who started a thread) or original post (the message that started it).
  2. [2]
    The Meaning of OP in Online Conversation - LiveAbout
    Dec 29, 2020 · The original poster is the person who started a discussion thread, and OP is used to refer back to that person as the responses grow. The term ...
  3. [3]
    OP - 1d6chan - Miraheze
    Oct 31, 2024 · Use of the term arose because, on a mainly anonymous board such as 4chan, the original poster will usually have no associated name by which to ...
  4. [4]
    OP Meaning, Origin and Examples - 7ESL
    Dec 25, 2024 · OP is a term that originated on online forums and message boards. It refers to the person who started a discussion thread or forum topic.
  5. [5]
    What Does "OP" Mean Online, and How Do You Use It?
    "OP" stands for "original poster" or "original post." While both of these terms are widely used on message boards and internet forums, they mean different ...
  6. [6]
    What Does OP Mean? How to Use OP Correctly - Business Insider
    May 27, 2021 · On social media, OP usually means "original poster" or "original post." In multiplayer games, especially online, OP tends to mean "overpowered.".
  7. [7]
    What's the meaning of "op" as an adjective? - Hypixel Forums
    Oct 11, 2021 · overpowered or original poster in some cases. I_am_ME_001 ... When used in the context of online gaming, OP stands for "overpowered.
  8. [8]
    Op/Opp - PLANOLY
    Op/Opp. Can mean "original poster," "opposition," "overpowered". "I heard them making fun of me behind my back ...
  9. [9]
    History - ORDO PRAEDICATORUM | OFFICIAL
    Dominic de Guzman founded the Order of Preachers in 1216. Traveling through Spain and southern France with the Bishop of Osma, he encountered many confused ...Missing: sources | Show results with:sources
  10. [10]
    Timeline of the Life of St. Dominic - Dominican Province of St. Joseph
    Aug 19, 2014 · It was the summer of 1216 and the friars had grown in number to sixteen. » Back to top. 1216. Approval of Order of Preachers. Pope Honorius III ...
  11. [11]
    Catholic Encyclopedia (1913):Order of Preachers, Part 1
    Dominic, in 1216, asked for the official recognition of his order, the first Preachers numbered only sixteen. ... These works enabled Vercellone to write: " To ...<|separator|>
  12. [12]
    Dominican Spirituality: The Four Pillars - Barry University, Miami, FL
    Members of the Dominican Order are committed to preaching the Word of God and to living that Word by encouraging all persons to incorporate gospel values into ...Missing: key notable
  13. [13]
    CATHOLIC ENCYCLOPEDIA: Order of Preachers - New Advent
    On 15 Aug., 1217 St. Dominic sent out his companions from Prouille. They went through France, Spain, and Italy, and established as principal centres, ...
  14. [14]
    About Us | The Order of Preachers - Dominican Friars
    We are a Catholic men's religious order established over 800 years ago by St. Dominic for preaching and the salvation of souls.
  15. [15]
    Fraternities - ORDO PRAEDICATORUM | OFFICIAL
    Some historical date. On December 22nd, Pope Honorius III approves the Order of Friars Preachers. The Master of the Order, fr Munio de Zamora (1285-1291), ...<|separator|>
  16. [16]
    Chapter 8: Reconnaissance - ODIN - OE Data Integration Network
    Sep 28, 2023 · An observation post (OP) is position within which a team is assigned the mission of conducting surveillance of enemy in a given zone or location ...
  17. [17]
    FM 21-75 Chptr 4 Observation - GlobalSecurity.org
    Look for enemy positions in obvious places, such as road junctions, hilltops, and lone buildings. Also look at areas with cover and concealment, such as woods ...Missing: tactics | Show results with:tactics
  18. [18]
    [PDF] Maneuver Leaders' Role in Observation Planning - Fort Benning
    This observation planning technique also provides the observer and commander with data necessary to rapidly adapt that plan during execution if a planned OP is ...
  19. [19]
    During WWI Fake Trees Were Built To Serve As Observation Posts
    Jan 25, 2019 · A dummy tree used as an observation post on Hill 63 by Australian troops during the Battle of Messines on 7 June 1917.
  20. [20]
    Forward Observation Post - The Historical Marker Database
    Apr 17, 2022 · This particular forward observation post is a replica of one built during the Vietnam War. It was on the perimeter of Hill 55 and was used to protect two men.
  21. [21]
    [PDF] Observations from Army Reconnaissance Course - Fort Benning
    ... observation post, the scout's primary means may be through an indirect-fires target from the artillery battery. The alternate CoA could be an indirect-fires ...<|separator|>
  22. [22]
    OPUS Definition & Meaning - Merriam-Webster
    Oct 11, 2025 · The meaning of OPUS is work; especially : a musical composition or set of compositions usually numbered in the order of its issue.Magnum opus · Scopus · Lagopus · Rhizopus
  23. [23]
    What is an opus? - Classical-Music.com
    Jul 25, 2022 · The word 'opus' is Latin for 'work'. When it comes to music, the term is included, along with a number, within the titles of individual compositions.
  24. [24]
    Why Do We Use 'Opus' in Composition Titles? An Explanation - WQXR
    Jun 8, 2017 · Up until the 1800s, music publishers usually assigned opus numbers to compositions or groups of compositions to indicate the chronological ...
  25. [25]
    What Does Opus Mean in Music? | Music Pandit
    Jul 24, 2025 · Opus, from Latin meaning 'work', refers to a composer's work, used to catalog and number works, often by publication or composition.
  26. [26]
    OPUS Definition & Meaning - Dictionary.com
    a literary work or composition, as a book: op. Have you read her latest opus? opus. / ˈəʊpəs, ˈɔp- /. noun. an artistic composition, esp a musical work. (often ...
  27. [27]
    Opus - Definition, Meaning & Synonyms - Vocabulary.com
    An opus is a created work, usually musical in nature. The composer's greatest opus was inspired by the blooming of the spring flowers.
  28. [28]
    OPUS definition in American English - Collins Dictionary
    An opus is a piece of classical music by a particular composer. Opus is usually followed by a number which indicates at what point the piece was written.<|separator|>
  29. [29]
    Opus Numbers - Professor Carol
    Feb 2, 2015 · An opus number is a specific sequencing number traditionally issued upon publication of a composition. It won't tell us when the piece was written.
  30. [30]
    Opera | History & Facts | Britannica
    Oct 7, 2025 · The collaborators of the first operas (in the early 17th century) believed they were creating a new genre in which music and poetry, in order ...Venetian opera · Russian opera · From the “reform” to grand opera · Civic humanism
  31. [31]
    Opera - Etymology, Origin & Meaning
    Opera, originating in the 1640s from Italian and Latin "opera" meaning "work," is a dramatic musical composition where music is essential and predominant.
  32. [32]
    Opera Definition & Meaning | Britannica Dictionary
    1. [noncount] : a kind of performance in which actors sing all or most of the words of a play with music performed by an orchestra
  33. [33]
  34. [34]
    Turning Logic Against Itself: Probing Model Defenses Through ...
    ... technique consists of two phases: (I) Polar Opposite Prompt Generation: This phase performs semantic inversion of the original prompt by generating an ...
  35. [35]
    A Review of the Application of Prompt Engineering in the Safety of ...
    May 8, 2025 · a. p. a. Chen, 2024 “Adversarial Contrastive Decoding: Boosting Safety Alignment of Large Language Models via Opposite Prompt Optimization”.
  36. [36]
    10 Levels of ChatGPT Prompts: How to Write Better - LinkedIn
    Jul 31, 2025 · The 'argue the opposite' prompt is so underrated. Thanks for ... Tips for Advanced ChatGPT Prompting Techniques · Tips for Designing ...
  37. [37]
    Niji 6 style ref tool for opposite prompts - Facebook
    And an interesting thing is that you can absolutely use ref images with completely opposite prompt structures. For example, prompt is a 2D drawing + ref 3D ...
  38. [38]
    Operator | Function, Algebra & Calculus - Britannica
    Sep 6, 2025 · Operator, in mathematics, any symbol that indicates an operation to be performed. Examples are x (which indicates the square root is to be ...
  39. [39]
    Operators (Mathematics) - an overview | ScienceDirect Topics
    A mathematical operator is a function that takes one or more input values and produces a single output value, mapping one function to another.
  40. [40]
    What is an Operator? - W3Schools
    An operator is a symbol or keyword that tells the computer what operation it should perform on values or variables.
  41. [41]
    What are Operators in Programming? - GeeksforGeeks
    Feb 21, 2024 · Operators in programming are symbols or keywords that represent computations or actions performed on operands. Operands can be variables, ...
  42. [42]
    Computer Programming - Operators - Tutorials Point
    An operator is a symbol that tells the compiler to perform mathematical, relational, or logical operations, producing a final result.<|separator|>
  43. [43]
    What does OP stand for? - Abbreviations.com
    What does OP mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: OP. ; OP. Operator Panel. Computing » ...
  44. [44]
    OP - Information Technology - Acronym Finder
    What does OP stand for? ; OP, Operator Panel ; OP, Over Provisioning (computing) ; OP, Operation/Operational ; OP, Operation Register.
  45. [45]
    What is Sysop (System Operator)? - Computer Hope
    Jun 12, 2024 · Short for system operator, the term sysop describes an individual in charge of a multi-user system, such as a BBS (Bulletin Board System).Missing: origin | Show results with:origin
  46. [46]
    My secret life as an 11-year-old BBS sysop - Ars Technica
    Dec 1, 2022 · I was only 11 years old, working from my dad's Tandy 1800HD laptop and a 2400 baud modem. The Cave BBS soon grew into a bustling 24-hour system ...
  47. [47]
    The Internet Origin Story You Know Is Wrong - WIRED
    May 17, 2022 · The creators and maintainers of BBSs, known as system operators or “sysops,” stood at the forefront of computer-mediated communication, carving ...
  48. [48]
    The Lost Civilization of Dial-Up Bulletin Board Systems - Bunk History
    Nov 4, 2016 · The Lost Civilization of Dial-Up Bulletin Board Systems. A former systems operator logs back in to the original computer-based social network.
  49. [49]
    Bulletin Board Systems (BBS): the "internet" before the internet
    Oct 12, 2015 · I went on to create StarDust BBS with Steve and my friend Ben in the early 90s and I also worked as SysOp (system operator) of Amiga Video ...
  50. [50]
    A teenage aspiring SysOp in the age of the text-only BBS - Red Hat
    Sep 7, 2020 · In a lot of ways, these systems were the birthplace of the commodity internet, even if nobody remembers them. A SysOp (System Operator) was the ...Missing: definition origin<|control11|><|separator|>
  51. [51]
    SYSOP Definition & Meaning - Merriam-Webster
    The meaning of SYSOP is the administrator of a computer message board.Missing: BBS | Show results with:BBS
  52. [52]
    OP - Out of Print | AcronymFinder
    How is Out of Print abbreviated? OP stands for Out of Print. OP is defined as Out of Print very frequently.
  53. [53]
    OP Out of Print - All Acronyms
    The abbreviation OP stands for Out of Print and is mostly used in the following categories: Literature, Graphic Design, Technology, Music, Gaming. Whether you' ...
  54. [54]
    Defining “Out of Print” in Publishing Contracts – Susan Spann ...
    In the days of print-only contracts, publishers could define “out of print” by reference to a work's availability because sales depended upon the production of ...
  55. [55]
    Book publishing glossary - Nathan Bransford
    Out of print – When a book is no longer being actively sold by a publisher ... POD is sometimes used as a blanket term for self-publishing, but POD may ...
  56. [56]
  57. [57]
    What happens to books that go out of print? Do they get destroyed ...
    Apr 3, 2023 · Yes, it is probable that any remaining copies will be destroyed—basically the cover is torn off and they are then thrown out or recycled ...What causes a book to go out of print and why would someone want ...What does it mean when a book is out of print? Is it illegal to sell or ...More results from www.quora.comMissing: implications | Show results with:implications
  58. [58]
    What Do You Mean My Book Is Out of Print? - Literary Lawyer
    May 29, 2023 · “Out-of-print” is its opposite—the publisher no longer offers the written work for sale. A diligent author always wants his work to be available ...
  59. [59]
    Decades Old? No Problem: Publisher Makes a Bet on Aging Books
    May 25, 2023 · A company is republishing books that have fallen out of print and finding new ways to market works that are years, even decades, old.<|separator|>
  60. [60]
    Republishing Out of Print Books – It's Not as Easy as You Think
    Aug 29, 2022 · If a book has been out of print for some years, we can generally assume the family are not interested in publishing it themselves.
  61. [61]
    Can You Legally Copy Out-Of-Print Books? - Woodbridge Publishers
    Aug 9, 2024 · Though no longer commercially available, these works are still protected under copyright, making it illegal to copy or reproduce them without authorization.
  62. [62]
    What to Do When Your Craft Book Goes Out of Print
    Jun 4, 2023 · What it means to be out of print. “Out of print” has become difficult to define, now that books can be printed on demand and sold digitally.<|control11|><|separator|>
  63. [63]
    What Happens When Books Go "Out Of Print?"
    Aug 12, 2013 · As one historian pointed out, digital publishing gives many the impression of longevity, but they are mistaken.Missing: implications | Show results with:implications
  64. [64]
    What does OP mean on Reddit? - Awario
    On Reddit, OP stands for Original Poster, ie the user who started the thread. OP acronym is commonly used in Reddit's comment sections in place of author's ...<|control11|><|separator|>
  65. [65]
    Gen Z Slang: OP Meaning - FamilyEducation
    Jul 31, 2024 · OP stands for "Original Poster" and refers to the person who started a conversation or thread, especially on social media or discussion forums.
  66. [66]
    'OP' meaning: There's more than one definition for slang term
    Jul 22, 2023 · "OP" means "original poster." This usage comes from chat forums. It refers to the initial person who made a post or started a thread, such as on Reddit.
  67. [67]
    What does OP mean : r/help - Reddit
    Jun 18, 2023 · As was explained OP means original poster/post which is the person who started the thread or post. You will see it used outside of Reddit, too.Am I stupid for just realising that OP stands for Original Poster and ...What does "OP" mean on reddit? : r/reddithelpMore results from www.reddit.com
  68. [68]
    OP Meaning, OPP Meaning: Slang Terms Explained
    Jul 19, 2024 · “OP” can mean “original post” or “original poster.” It can refer to a social media post that was retweeted, stitched, dueted or shared.
  69. [69]
    What Does "OP" Mean in Gaming? - G2A News
    Mar 26, 2025 · OP stands for “overpowered” and this term is used to describe something that is excessively powerful compared to other elements of the game.Missing: fiction | Show results with:fiction
  70. [70]
    What does "OP" mean in gaming? - Hitmarker
    Rating 5.0 · Review by GoogleSep 7, 2022 · OP, short for 'overpowered,' refers to in-game items, characters, weapons, or skills that are too strong, often in PvP or PvE games.
  71. [71]
    Video Games: OP Meaning & Usage - Screen Rant
    Feb 7, 2020 · Sometimes written as "O.P." or "op," OP is an abbreviation of "overpowered." Dictionary definitions of overpowered say it is only usable as a ...Missing: origin | Show results with:origin
  72. [72]
    What is the meaning of the term 'OP' in video games and where did it ...
    Jul 7, 2024 · The original poster is the person who started a discussion thread, and OP is used to refer back to that person as the responses grow. The term ...What does OP mean in chats? - QuoraWhat does “OP” mean? Why do people call me that? - QuoraMore results from www.quora.com
  73. [73]
    What "OP" means in games - A Rant. : r/apexlegends - Reddit
    Feb 22, 2019 · A mechanic or object in a game in which the skill required to use it is disproportionate to the resulting outcome.What does overpowered mean? : r/DnDWhy do they say something is OP as in “overpowered”?More results from www.reddit.com
  74. [74]
    Glossary Entry: Overpowered - God Minded Gaming
    Definition. Overpowered characters, items, or plot devices are elements of a fictional work that are too powerful for their role in the narrative of the story.
  75. [75]
    The 25 Most Overpowered Video Game Characters - TheGamer
    Jan 30, 2017 · The 25 Most Overpowered Video Game Characters · 1 Asura – Asura's Wrath · 2 Kratos – God of War Series · 3 Dante – Devil May Cry Series · 4 ...
  76. [76]
    The Search for the Most Broken Video Game Character
    May 20, 2023 · Broken vs. Overpowered · Leroy Smith - Tekken 7 · Satinsect - Superior Soldiers · Meta Knight - Super Smash Bros. Brawl · Bayonetta - Super Smash ...
  77. [77]
    Most OP Playable Characters In Gaming - Game Rant
    Sep 16, 2025 · Most OP Playable Characters In Gaming · Batman · Cloud Strife · V · Master Chief · Alex Mercer · Playa · Kratos · The Doom Slayer.
  78. [78]
  79. [79]
    Organized Play Pathway - Flesh and Blood TCG
    From the first day that we sat down to design Flesh and Blood, organized play was at the center of our thinking. It's embedded in our decision to design the ...
  80. [80]
    Learn about D&D organized play options
    Feb 25, 2011 · There is a rich history to organized play, beginning in the 1980's with the RPGA (Role Playing Game Association) as a gaming club/network ...Missing: definition | Show results with:definition
  81. [81]
  82. [82]
    Every TTRPG With Organized Play | StartPlaying
    May 14, 2025 · TTRPGs with organized play include D&D (Adventurer's League), Pathfinder/Starfinder, Call of Cthulhu, RuneQuest, Pendragon, Shadowrun, City of ...
  83. [83]
  84. [84]
    Wizards Play Network - Wizards of the Coast
    Get exclusive benefits and personalized support by joining WPN, a community of game stores bringing Magic players together. Join today!
  85. [85]
    The One Power | TheGreatBlight.com | A Wheel of Time Fan ...
    The One Power is the force or power that drives the turning of the Wheel of Time. It is an unlimited source of power and it drives the passing of time.Missing: explanation | Show results with:explanation
  86. [86]
    How Does 'The Wheel of Time's One Power Work? - Collider
    Sep 2, 2023 · The One Power comes from the cosmic True Source, which creates the weaving of time's pattern. Essentially, it controls the universe.
  87. [87]
    The Five Threads Of Power Explained: What Each One Does In The ...
    Sep 2, 2023 · The five powers are Earth, Air, Fire, Water, and Spirit. Some channelers are stronger with certain threads than others, but anyone who can channel is capable ...
  88. [88]
    What is the difference between The One Power and The True Power ...
    May 16, 2019 · The One Power flows from the True Source (implied to be the Creator itself) and is divided into two halves: Saidin and Saidar.
  89. [89]
    The One Power vs The True Power | Ebony's WoT Fan Guide
    Jul 22, 2016 · The One Power is drawn from the True Source and is the energy used to power the turning of the Wheel of Time. It is made up of two complementary ...<|control11|><|separator|>
  90. [90]
    Operating Profit: How to Calculate, What It Tells You, and Example
    Operating profit is the total earnings from a company's core business operations excluding deductions of interest and tax.What Is Operating Profit? · Understanding It · Other Profit Measures
  91. [91]
    Profit - Overview, Examples of Gross, Operating, and Net Profit
    Operating profit, also called Earnings Before Interest and Taxes (EBIT), is the value that remains after all operating expenses have been deducted from revenue.
  92. [92]
    Operating Profit | Formula + Calculator - Wall Street Prep
    Operating Profit is a profitability metric that measures the remaining income of a company after deducting operating costs.What is Operating Profit? · Operating Profit Formula · How to Find Operating Profit...Missing: definition | Show results with:definition
  93. [93]
    Operating Profit 101: Definition & Calculation Guide | PNC Insights
    Apr 10, 2025 · Operating profit represents the income a company generates from its core operations before accounting for interest and tax expenses. What ...
  94. [94]
    Operating Profit Margin - Corporate Finance Institute
    It is calculated by dividing the operating profit by total revenue and expressing it as a percentage. The margin is also known as EBIT (Earnings Before Interest ...
  95. [95]
    Operating Profit vs. Net Income: Key Differences Explained
    Jun 6, 2025 · Operating profit represents earnings from core business activities before interest and taxes, while net income includes all revenue and expenses ...<|separator|>
  96. [96]
    Operating Profit vs. Net Income: What's the Difference? - Investopedia
    Operating profit is the amount of revenue that remains after subtracting a company's variable and fixed operating expenses.
  97. [97]
    OP Electronics Abbreviation Meaning - All Acronyms
    OP in Electronics commonly refers to Output Power, which is the amount of power delivered by an electronic device or circuit to a load, measured in watts.
  98. [98]
    OP - Output Power | AcronymFinder
    How is Output Power abbreviated? OP stands for Output Power. OP is defined as Output Power very frequently.
  99. [99]
    Demystifying Maximum Power Output Concepts
    The power output in any electrical system is the product of output voltage, output current, and power factor (pf) as shown in equation 1 (below). Electrical ...
  100. [100]
  101. [101]
    [PDF] Glossary of Power Supply Terms Rev 3.0 - TDK-Lambda EMEA
    Multiple Output Power Supply – A power supply (PSU) with two or more outputs ... OP-AMP – Abbreviation for Operational Amplifier. OVP – Abbreviation ...
  102. [102]
    Power Output - (College Physics I – Introduction) - Vocab, Definition ...
    Definition. Power output refers to the rate at which energy is converted or transferred in a system, typically measured in watts (W) or kilowatts (kW).
  103. [103]
    Comparison Between Input Power and Output Power
    We can divide into Input power and Output power. Obviously output power is always weaker than input power for the machine will consume much energy when working.<|control11|><|separator|>
  104. [104]
    Power Output - an overview | ScienceDirect Topics
    Power output is defined as the least amount of wind speed at which a wind turbine generates rated power, reflecting the energy produced by the turbine under ...
  105. [105]
    Organophosphate Toxicity - StatPearls - NCBI Bookshelf - NIH
    Nov 12, 2023 · Organophosphates encompass a diverse group of chemical compounds and are formed through esterification between phosphoric acid and alcohol.
  106. [106]
    Organophosphate - an overview | ScienceDirect Topics
    Organophosphates (OPs) are a family of toxic compounds that are abundantly used in agriculture, industry, household products, and biochemical warfare.
  107. [107]
    Mechanisms of Organophosphate Toxicity and the Role of ...
    Oct 18, 2023 · Organophosphates are organic compounds that contain phosphorus. ... Depending on a number of factors—major among them is the specific type of the ...
  108. [108]
    Organophosphate Toxicity - Medscape Reference
    Mar 13, 2023 · Organophosphate toxicity can result from household or occupational exposure, military or terrorist action, or iatrogenic mishap.
  109. [109]
    [PDF] Chapter 5 Organophosphates - EPA
    Organophosphates (OPs) are a class of insecticides, several of which are highly toxic. Until the 21st century, they were among the most widely used ...
  110. [110]
    Organophosphorus Nerve Agents: Types, Toxicity, and Treatments
    Sep 22, 2020 · These nerve agents can be classified into four types: (1) the G-series agents which were developed by Germans and include tabun (GA), sarin (GB) ...
  111. [111]
    Sarin (GB): Nerve Agent | NIOSH - CDC
    Sarin (military designation GB) is a nerve agent that is one of the most toxic of the known chemical warfare agents. It is generally odorless and tasteless.
  112. [112]
    Organophosphate Poisoning: What It Is, Symptoms & Treatment
    Jul 18, 2024 · Organophosphate poisoning is the harmful effects of exposure to certain compounds found in agricultural products or chemical warfare agents.
  113. [113]
    Opglabbeek (Municipality, Province of Limburg, Belgium) - CRW Flags
    Feb 26, 2017 · The municicpality of Opglabbeek was established in 1977 as the merger of the former municipalities of Opglabbeek, Louwel and Nieuwe Kempen. The ...Missing: history | Show results with:history
  114. [114]
    Opglabbeek - LUX
    Opglabbeek is a municipality located in the Belgian province of Limburg, known for its agricultural heritage and its proximity to the National Park Hoge ...
  115. [115]
    Oudsbergen - Limburg Province (Sub-Municipalities) - City Population
    Opglabbeek, Sub-Municipality, Oudsbergen, 10,117, 10,297, 10,403, 10,600, →. Wijshagen, Sub-Municipality, Oudsbergen, 1,671, 1,689, 1,638, 1,631, →. Source: ...
  116. [116]
    Structure of the Population - Statbel.fgov
    Jun 11, 2025 · On 01 January 2025, Belgium had 11,825,551 legal inhabitants. Between 1 January 2024 and 1 January 2025, the Belgian population grew by ...Population density · Origin · HouseholdsMissing: Op | Show results with:Op
  117. [117]
    Home | Sentower Park | For all your events | Oudsbergen
    Sentower Park biedt iedereen de gelegenheid om deel te nemen aan een brede waaier van activiteiten en evenementen in een uniek en moderne evenementenhal.Events · Equestrian hall · Expo Hall · About
  118. [118]
    Event Opglabbeek Standard Show - FEI.org
    Event Opglabbeek Standard Show (Belgium). From 2025-01-08 12:00:00 to 2025-01-12 12:00:00. Disciplines: Jumping.<|separator|>
  119. [119]
    Gemeente Echt-Susteren - Genealogie Limburg Wiki
    Dec 28, 2008 · Echt-Susteren is een jonge gemeente die bestaat uit de dorpen en buurtschappen Aasterberg, Baakhoven, Berkelaar, Dieteren, Echt, Echterbosch ...
  120. [120]