Results 71 to 80 of about 4,166,989 (291)

Exploring the Variations of the Sex Ratio at Birth from an Historical Perspective

open access: yesStatistica, 2015
Variations in sex ratios at birth is still an active research field and several studies in the last decades have focused on this topic. In this article, studies on the main determinant of long- and short-term trends are briefly reviewed, taking into ...
Francesco Scalone, Rosella Rettaroli
doaj   +1 more source

Kansas State Historical Society Annual Report, 2022

open access: yes, 2022
Covers Fiscal Year 2022 The Kansas State Historical Society, Inc., doing business as the Kansas Historical Foundation, is an IRS determined 501(c)(3) non-profit and serves as the fund raising, fund management, membership, and retail organization for the ...
Kansas State Historical Society
core  

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

open access: yesFEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez   +6 more
wiley   +1 more source

HEURISTIC POTENTIAL OF GENERAL POPULATION CENSUSES IN HISTORICAL DEMOGRAPHY

open access: yesМісто: історія, культура, суспільство
The article analyzes the heuristic potential of general population censuses as a key source for historical demography, using All-Imperial Population Census of the Russian Empire in 1897 as a case study.
Tetiana Vodotyka, Sergiy Vodotyka
doaj   +1 more source

Determinants of undergraduate bioscience engagement: Validating attendance barriers and classroom spatial behaviour across institutions

open access: yesFEBS Open Bio, EarlyView.
Student engagement extends beyond simple attendance. Across 891 bioscience students from three universities, attendance behaviour was associated mainly with structural influences, whereas classroom spatial behaviour reflected affective and sensory factors.
Nigel Page   +4 more
wiley   +1 more source

Demography in a new key [PDF]

open access: yes
The widespread opinion that demography is lacking in theory is based in part on a particular view of the nature of scientific theory, generally known as logical empiricism [or positivism].
Thomas K. Burch
core  

Five‐Year Outcomes of Laparoscopic Sphincter‐Preserving Surgery for Rectal Cancer: A Prospective Study in Elderly Vietnamese Patients

open access: yesAging and Cancer, EarlyView.
This prospective study demonstrates that laparoscopic sphincter‐preserving surgery is feasible for elderly patients. While overall survival reaches 70% at 5 years, advanced T‐stage and the omission of neoadjuvant therapy significantly drive recurrence, highlighting the need for personalized geriatric protocols despite logistical challenges.
Huu Duc Ho   +4 more
wiley   +1 more source

Kansas State Historical Society Annual Report, 2020

open access: yes, 2020
The Kansas State Historical Society became the Kansas Historical Society, a state agency, in 2007. The Kansas State Historical Society, Inc. is a private foundation.
Kansas Historical Society
core  

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Interdisciplinary Approach to Spationtemporal Population Dynamics. The North Orkney Population History Project

open access: yesHistorical Life Course Studies, 2019
The North Orkney Population History Project is a multidisciplinary data collection, digitization, and analysis effort that aims to reconstruct longitudinal demographic, environmental, and economic change. We describe the motivation, methodological
Julia A. Jennings   +2 more
doaj   +1 more source

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