Heritability Estimates from Twin Studies. I. Formulae of Heritability Estimates

1978 ◽  
Vol 27 ◽  
pp. 39-44 ◽  
Author(s):  
K.W. Kang ◽  
J.C. Christian ◽  
J.A. Norton
Keyword(s):  
Critical Review ◽  
Twin Studies ◽  
The Past ◽  
Heritability Estimates

Over the past 50 years a large number of methods have been proposed for estimating heritability from twin studies. The present paper describes the most commonly cited of these estimates as a first step in evaluating their usefulness. A critical review will then follow.

An Evaluation of the Efficacy of Local Hemostatic Measures in Dental Patients Taking Oral Anticoagulants: A Critical Review of the Literature Over the Past Two Decades

2016 ◽  
Vol 11 (4) ◽  
pp. 230-240 ◽  
Author(s):  
Salomao Queiroz ◽  
Helenilton Alves ◽  
Gleysson Assis ◽  
Thalita Conceicao ◽  
Adriano Germano ◽  
...  
Keyword(s):  
Critical Review ◽  
Oral Anticoagulants ◽  
Review Of The Literature ◽  
Dental Patients ◽  
The Past

scholarly journals Genomics of ageing in twins

2014 ◽  
Vol 73 (4) ◽  
pp. 526-531 ◽  
Author(s):  
Massimo Mangino
Keyword(s):  
Molecular Mechanisms ◽  
Twin Studies ◽  
Later Life ◽  
Twin Design ◽  
The Past ◽  
Human Ageing ◽  
Classical Twin Design ◽  
Environmental Component ◽  
Early Life Events ◽  
Generation Sequencing

Ageing is a complex multifactorial process, reflecting the progression of all degenerative pathways within an organism. Due to the increase of life expectancy, in recent years, there is a pressing need to identify early-life events and risk factors that determine health outcomes in later life. So far, genetic variation only explains ~20–25 % of the variability of human survival to age 80+. This clearly implies that other factors (environmental, epigenetic and lifestyle) contribute to lifespan and the rate of healthy ageing within an individual. Twin studies in the past two decades proved to be a very powerful tool to discriminate the genetic from the environmental component. The aim of this review is to describe the basic concepts of the twin study design and to report some of the latest studies in which high-throughput technologies (e.g. genome/epigenome-wide assay, next generation sequencing, MS metabolic profiling) combined with the classical twin design have been applied to the analysis of novel ‘omics’ to further understand the molecular mechanisms of human ageing.

Synthesis of nontronite and other Fe-rich smectites: a critical review

Clay Minerals ◽  
2017 ◽  
Vol 52 (4) ◽  
pp. 469-483 ◽  
Author(s):  
S. Petit ◽  
F. Baron ◽  
A. Decarreau
Keyword(s):  
Clay Minerals ◽  
Critical Review ◽  
Present Review ◽  
Chemical Compositions ◽  
Natural Environments ◽  
The Past

AbstractThe synthesis of clay minerals has been studied for decades in an attempt to better understand their formation in natural environments and more recently to obtain clay minerals with controlled compositions and properties. Even though nontronite has been synthesized successfully since 1935, the process is not a straightforward and has been poorly documented. In the present review concerning the synthesis of nontronite and other Fe-rich smectites, the experiments attempted in the past are discussed critically in light of the most recent data. Most notably, the application of relationships established recently, thanks to synthetic smectitic series, have allowed us to refine the chemical compositions of some nontronites synthesized previously.

scholarly journals Western Objections to the Islamic Concept of Gender Equality: A Critical Review

Fahm-i-Islam ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 55-70
Author(s):  
Dr Aurangzeb
Keyword(s):  
Gender Equality ◽  
Critical Review ◽  
Critical Analysis ◽  
View Point ◽  
Significant Progress ◽  
The West ◽  
The Past ◽  
Viable Solution ◽  
The World ◽  
Islamic View

Over the past several years, despite the constant evolution of the legislation the problem of gender equality in the West has been steadily increasing. What is the reason why there is no significant progress in solving gender equality issues in the West yet? Several reports and researches have pointed out to this problem. On the contrary, Islam provides a viable solution to this ever increasing problem; for Islam has a comprehensive yet simple view of gender equality. But the West, instead of understanding Islamic principles objectively, raises objections without a thorough study. However, the Western principle of gender equality has completely failed. In this article a critical analysis of the western gender equality and Islamic principles has been carried out. It also highlights Islamic view point of gender equality. The study argues that the contemporary gender equality problems and issues that have engulfed the world particularly the Western countries can be mitigated by employing the Islamic principles of gender equality

scholarly journals Nuevos y viejos campos para el estudio de la guerra a lo largo del siglo XX: un motor de innovación historiográfica

2018 ◽  
pp. 164
Author(s):  
David Alegre Lorenz
Keyword(s):  
Gender Studies ◽  
Social History ◽  
Critical Review ◽  
Great Influence ◽  
Military History ◽  
Cutting Edge ◽  
International Level ◽  
Total War ◽  
The Past ◽  
Siglo Xx

Resumen: Este artículo tiene por objeto analizar los principales debates y avances en uno de los campos más punteros y prolíficos de la historiografía a nivel internacional: los estudios de la guerra, también conocidos como nueva historia militar. Para ello propongo un recorrido a través de los cambios que se han producido dentro de éste ámbito durante las dos últimas décadas, así como también un examen crítico de los trabajos y tendencias historiográficas que más han contribuido a ello. En este sentido, planteo una puesta en valor de los estudios de la guerra y destaco su importancia para el conjunto de la historiografía por su capacidad para complejizar nuestro conocimiento y explicaciones del pasado; por el amplio y sugerente abanico de casos de estudio que pone a nuestra disposición; por sus tremendas posibilidades y potencial renovador a nivel metodológico e interpretativo; y, no menos importante, por su tremenda actualidad y sus conexiones con el presente.Palabras clave: estudios de la guerra, nueva historia militar, historia social, estudios de género, estudios culturales, guerra total.Abstract: This article is intended to analyze the major discussions and developments in one of the most prolific and a cutting-edge historiographic field on an international level: the war studies, also known as new military history. For this reason I propose a look through the changes which have taken place in this area over the last two decades, as well as a critical review of the works and historiographical paradigms that have contributed in that way. In this sense I defend the value of war studies and its importance for the whole historiography, taking into account specially its capacity to enable a more complex understanding and explanation of the past; the wide and suggestive range of subject matters that place at our disposal; its huge possibilities and renewing potential on a methodological and interpretative level; and last but not least its great influence and connections with the present.Keywords: war studies, new military history, social history, gender studies, cultural studies, total war.

Some Methodological Problems of the Study of Jewish History in Poland Between the Two World Wars

2004 ◽  
pp. 163-175
Author(s):  
Jerzy Tomaszewski
Keyword(s):  
20Th Century ◽  
Public Interest ◽  
Critical Review ◽  
Legal Status ◽  
Jewish History ◽  
Methodological Consideration ◽  
The Past ◽  
Polish Society ◽  
History Of ◽  
Methodological Problems

This chapter identifies some methodological problems of the study of Jewish history in Poland between the two World Wars. The growing public interest in the history of Polish Jews between the wars has been the reason for the publication of many books and articles. Some are based on only a superficial survey, others present a deep and penetrating analysis of specific problems. This body of literature deserves methodological consideration, together with a critical review of the most important sources, so that some queries, doubts and suggestions can be raised. During at least the past hundred years, a tradition developed in some Jewish and Polish political circles of treating the Jews as a kind of alien body within Polish society. This attitude can also often be observed in contemporary historical studies, despite the authors' declared intentions. This can partly be explained in terms of the distant past, when Jews constituted a distinctly different class of people with its own legal status and institutions, but there is no reason to maintain such an approach when investigating the history of the 20th century.

A Critical Review of Online Consumer Behavior

2011 ◽  
pp. 262-279 ◽  
Author(s):  
Christy M.K. Cheung
Keyword(s):  
Consumer Behavior ◽  
Theoretical Model ◽  
Critical Review ◽  
Research Agenda ◽  
Research Area ◽  
Integrative Model ◽  
Review Of The Literature ◽  
Online Consumer Behavior ◽  
The Past ◽  
Online Consumer

The topic of online consumer behavior has been examined under various contexts over the years. Although researchers from a variety of business disciplines have made significant progress over the past few years, the scope of these studies is rather broad, the studies appear relatively fragmented and no unifying theoretical model is found in this research area. In view of this, we provide an exhaustive review of the literature and propose an integrative model of online consumer behavior so as to analyze the online consumer behavior in a systematic way. This proposed framework not only provides us with a cohesive view of online consumer behavior, but also serves as a salient guideline for researchers in this area. We conclude our paper with a research agenda for the study of online consumer behavior.

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