Academia.eduAcademia.edu

Weight Formula

description7 papers
group13 followers
lightbulbAbout this topic
The weight formula refers to mathematical equations used to calculate the weight of an object based on its mass and the acceleration due to gravity. It is commonly expressed as W = m × g, where W represents weight, m is mass, and g is the acceleration due to gravity.
lightbulbAbout this topic
The weight formula refers to mathematical equations used to calculate the weight of an object based on its mass and the acceleration due to gravity. It is commonly expressed as W = m × g, where W represents weight, m is mass, and g is the acceleration due to gravity.

Key research themes

1. How do different empirical methods influence the accuracy and length-bias in standard weight formula development for fish species?

This theme investigates the methods used to derive standard weight (Ws) equations in fishery science, focusing primarily on the Regression Line-Percentile (RLP) and Empirical Percentile (EmP) approaches. These methods aim to predict ideal body weights from length measurements to assess fish condition and population health. Precision in Ws equations impacts fisheries management decisions and ecosystem health evaluations. The literature compares these methods' sensitivity to length-related bias, data filtering quality, and applicability across species, highlighting the importance of rigorous methodology to reduce systematic error and improve reliability of relative weight (Wr) indices across populations.

Key finding: The study empirically compared the EmP and RLP methods for developing standard weight (Ws) equations using morphologically distinct fish species, walleye and black crappie, and found that the EmP method did not consistently... Read more
Key finding: By analyzing over 9,000 specimens of Telestes muticellus, this study developed Ws equations using both RLP and EmP methods and found differences in population condition assessments depending on the method chosen. The EmP... Read more
Key finding: This research developed an EmP-based standard weight equation for an endangered native fish, the brook chub, and validated its length bias using an independent data set. The EmP method's curvilinear model fit well, supporting... Read more

2. How reliable are anthropometric predictive weight formulas compared to direct measurements in clinical and veterinary contexts?

This research theme explores the accuracy, consistency, and clinical utility of predictive equations and formulas designed to estimate body weight where direct measurement is challenging or impractical. Applications span elderly hospitalized patients where mobility constraints limit scale use, to livestock where weighing may be expensive or infeasible, and pediatric prehospital care where rapid weight estimation informs medication dosing. The studies evaluate diverse formulas, including Chumlea equations, Lambourne formula, and systems like Handtevy and Broselow tapes, benchmarking their estimation errors, biases, and implications for clinical/nutritional assessment or livestock management.

Key finding: In hospitalized elderly patients able to stand, the Chumlea equations—estimating weight from anthropometric measures—showed strong correlation (ICC ~0.926) and good agreement with actual weights, supporting their use for... Read more
Key finding: Evaluating the Chumlea and Rabito predictive weight equations in hospitalized adults, this cross-sectional study found excellent concordance between estimated and actual weights and corresponding BMI values, though slight... Read more
Key finding: This large retrospective evaluation found that both Handtevy and Broselow methods for pediatric prehospital weight estimation had variable accuracy, with around 20% of estimates inaccurate, potentially contributing to... Read more

3. What are the mathematical and practical relationships between Ideal Body Weight (IBW) formulas and Body Mass Index (BMI)?

This area explores the derivation and evaluation of IBW formulas relative to BMI frameworks, focusing on methodological appropriateness regarding height references and formula linearity versus quadratic formulation. Since BMI is a function of weight divided by height squared, but many IBW formulas are linear functions of height, there exists a methodological tension and potential for systematic estimation errors in clinical and epidemiological contexts. Investigations aim to refine IBW formulas for improved alignment with BMI references, enhancing their clinical relevance in dosing, nutritional assessment, and disease diagnosis.

Key finding: The study mathematically derived new IBW formulas by selecting a more appropriate reference height, showing that IBW can be approximately linear in height only near a carefully chosen reference height, thus reconciling IBW... Read more

All papers in Weight Formula

aplicable siempre que la emanación de una norma (general o individual) da lugar a un conflicto entre normas superiores. En otras palabras, en la medida en que una norma que instancie dos normas superiores incompatibles comprende esa... more
The purpose of the study is a comparative legal analysis of approaches to principles and rules in R. Alexy’s dual theory of law. The methodological basis of the study are the following fundamental methods of scientific knowledge: general... more
The recent debate between Alexy and Ratti provides an excellent opportunity to discuss proportionality, balancing and their substantive ramifications. In addition to critically analysing this debate, we take the opportunity to sustain... more
The recent debate between Alexy and Ratti provides an excellent opportunity to discuss proportionality, balancing and their substantive ramifications. In addition to critically analysing this debate, we take the opportunity to sustain... more
现行人格权理论认为,人格权是自然人对自我人格利益享有的权利,与亲属无关;这从法理和逻辑上切断了人格权与身份权的内在联系。由此,不仅使得立法和司法上承认侵害生命权案件中亲属的损害赔偿权的做法与人格权理论相悖,而且也极大地弱化了人身权的理论基础。拒绝承认其他人格侵权案件中亲属的损害赔偿请求权的做法有悖于人性和亲情,因为每个人的人格利益不仅包括自我人格利益,也包括对亲属的人格要素所享有的人格关爱益。以对亲属的人格关爱利益为客体的权利即身份人格权,它与自我人格权一... more
Much has been said about the logical difference between rules and principles, yet few authors have focused on the distinct logical connectives linking the normative conditions of both norms. I intend to demonstrate that principles, unlike... more
Resumen: En este trabajo se analiza la aproximación que Jorge Luis Rodríguez realiza de la clasificación guastiniana de las jerarquías, se critica la forma en que la aborda y se señalan algunos vacíos de la aproximación de J.L. Rodríguez... more
I. INTRODUCTION Neil Mac Cormick first put forward his thoughts on legal reasoning in a book entitled Legal Reasoning and Legal Theory (hereinafter Legal Reasoning). 3 MacCormick's aim in Legal Reasoning was to explain the nature of legal... more
Three claims are defended here. First, there are no distinct basic operations in the process of the application of law, like balancing and analogy. Second, analogy has two stages: the purely heuristic stage, and the... more
The partial reducibility thesis may still be defended, with appeal to Robert Alexy's theory of legal reasoning. One issue with Duarte's criticism of the partial reducibility thesis is its relative neglect of Alexy's insights. Aspects of... more
La coalición entre derechos fundamentales o principios constitucionales demandan una interpretación por parte del juez constitucional que al aplicar un bien constitucionalmente protegido no implique la paralela eliminación de otro. Con... more
In this paper I analyze argumentation based on legal principles advanced in the justifica tion of legal decisions, explore the criteria for the assess ment of this type of argumentation and relate that to the general theory of law and... more
In this paper I analyze argumentation based on legal principles advanced in the justifica tion of legal decisions, explore the criteria for the assess ment of this type of argumentation and relate that to the general theory of law and... more
Analogical reasoning is as much contested as it is acclaimed as a tool of legal interpretation to ascertain the ideals of the Rule of Law. It is rejected because it would be infinitely malleable or just a form of deduction from rules. It... more
In this blogspot I portrayed some of the ideas I worked on in the frame of my PhD thesis, such as the limits of pro homine interpretation and the need to rethink the criteria for the balancing of national and international incorporated... more
阿列克西的权重公式旨在界定权衡法则的要素内容和各要素间的关系。然而,阿列克西的权重公式缺乏对具体情境的确定性分析。同时,权重公式的高度抽象性和“影响程度”分类标准的模糊性导致权衡结果的高度不确定性。另外,阿列克西提倡用相对性视角界定基本权利的内核,威胁了宪法权利的防御性功能。为了应对任意性和基本权利内核受损的风险,本文提倡在绝对性视角界定基本权利内核的基础上,按照类型化的途径分别在公法领域和私法领域重构权衡公式。并且尝试用权衡之法的理性逻辑解决生命权相冲突的情景
Resumen: Con este trabajo buscamos poner de relieve algunos desafíos que pueden plantearse al modo en que Alexy explica el papel que cumplen los principios formales en la ponderación de los principios materiales. Su propuesta, por un... more
Exemplary judges are important for legal theory and legal practice. Still the conception of imitation of exempla as analogical reasoning is criticized here. Imitation as character development may well be more important. Thus, there is, at... more
In the twentieth century, the debate over the possibilities and limits of logic in law became particularly acute with the emergence of judicial realism, a philosophical and legal trend that denied the deductive nature of judicial... more
The Law and Philosophy Library, which has been in existence since 1985, aims to publish cutting edge works in the philosophy of law, and has a special history of publishing books that focus on legal reasoning and argumentation, including... more
El trabajo es una propuesta de identificacion y analisis de tres conflictos normativos o antinomias producidas en la aplicacion de reglas contenidas en la ley de entrevista investigativa videograbada. Utilizando herramientas analiticas de... more
Bartosz Brożek* Analogy and Balancing: A Reply to David Duarte he goal of the paper is to reply to David Duarte's critique of the partial reducibility thesis-a claim I defended in one of my books that analogy is partly reducible to the... more
The starting point of this study is Robert Alexy’s classification of relationships between law and morality. There is one general and one particular reason for using his classification as the study’s starting point. The general... more
RESUMEN. El presente trabajo constituye un esfuerzo de explicación del fenómeno de la derrotabilidad de las normas jurídicas y de las diferentes formas de interacción entre reglas y principios jurídicos. Tras la adopción de la... more
The editors of this collection of essays concede that it does 'not purport to provide an overarching ''solution'' to the complexities faced by the courts when dealing with causation evidence' (p xxxii).Why then does this book make a... more
El trabajo es una propuesta de identificación y análisis de tres conflictos normativos o antinomias producidas en la aplicación de reglas contenidas en la ley de entrevista investigativa videograbada. Utilizando herramientas analíticas de... more
In this paper I analyze argumentation based on legal principles advanced in the justifica tion of legal decisions, explore the criteria for the assess ment of this type of argumentation and relate that to the general theory of law and... more
In this paper the author criticizes the way Robert Alexy reconstructs the relationship between legal and practical reasoning. The core of Alexy's argumentation (Alexy 1978) is considered the claim that legal argumentation is a "special... more
Se presenta un modelo alternativa para la ponderación jurídica, también llamada Test de proporcionalidad. Se trata de un método para resolver colisiones de principios, especialmente de rango constitucional.
The puzzle of defeasible rules At first glance it is hard to know what is meant when someone says: 'Well, that's the exception that proves the rule!' An exception hardly seems supportive of its rule; if anything, the exception seems to... more
La coalición entre derechos fundamentales o principios constitucionales demandan una interpretación por parte del juez constitucional que al aplicar un bien constitucionalmente protegido no implique la paralela eliminación de otro. Con... more
This article examines Robert Alexy's account of legal validity. It concludes that Alexy's account of legal validity lacks sufficient support given the author's methodological commitments. To reach that conclusion, it assesses the... more
This Chapter discusses Professor Postema's account of analogy in law. It takes issue with Professor Postema's contention that ‘strictly speaking, there is no such thing as argument from analogy, but only reasoning with analogy, or rather... more
Reasoning from case to case not only characterizes the heuristics in common law tradition, but also legal adjudication on the basis of statutory rules. Both the interpretation of rules and the weighing and balancing of principles are... more
This paper focuses on legal reasoning, arguing that although methodological theories are important, they are not enough to explain how to reason in law. In fact, because the different philosophical perspectives vary so significantly in... more
I. Introducción II. El interés superior del niño: su carácter dinámico y flexible III. Las pautas de interpretación y argumentación de la Observación General Nro. 14 del Comité de los Derechos del Niño de Naciones Unidas: 1) La... more
El presente trabajo constituye un esfuerzo de explicación del fenómeno de la derrotabilidad de las normas jurídicas y de las diferentes formas de interacción entre reglas y principios jurídicos. Tras la adopción de la clasificación de las... more
El presente artículo constituye un análisis dialectico y minucioso de los diferentes aspectos criticados por los doctrinantes constitucionales acerca de los modelos de ponderación constitucional. Se revisarán las posiciones conceptuales,... more
El presente artículo se enmarca en la problemática general de la toma de decisiones en su-puestos de empates de ponderación. Si bien para el planteamiento del problema se toma en consideración la teoría de los principios y ponderación... more
Este estudio trata sobre los derechos sociales que se encuentran incorporados al catálogo de derechos fundamentales de las Constituciones. Como es bien sabido, la mayoría de las cláusulas constitucionales que pretenden garantizar derechos... more
Legal reasoning is about the creation, application and extinction of legal norms (rules, standards or principles). Legislators and lawmakers argue about the creation and extinction of norms, or, more technically, about the enactment and... more
En este trabajo, sostengo que la teoría de la ponderación de Robert Alexy está afectada por una contradicción básica que la hace inviable como instrumento explicativo de algunos aspectos del derecho y del razonamiento jurídico que... more
Los conflictos de competencias son un problema omnipresente en el Derecho. Ellos representan un serio desafío, en particular, al constitucionalismo global y al cosmopolitismo institucional. En este artículo se argumentará desde la... more
Download research papers for free!