Results 41 to 50 of about 12,519,177 (391)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Male Oxidative Stress Infertility (MOSI): Proposed Terminology and Clinical Practice Guidelines for Management of Idiopathic Male Infertility

The World Journal of Men's Health, 2019
Despite advances in the field of male reproductive health, idiopathic male infertility, in which a man has altered semen characteristics without an identifiable cause and there is no female factor infertility, remains a challenging condition to diagnose ...
A. Agarwal, N. Parekh, M. K. Panner Selvam, R. Henkel, R. Shah, S. Homa, R. Ramasamy, Edmund Y Ko, K. Tremellen, S. Esteves, A. Majzoub, J. Alvarez, D. Gardner, C. Jayasena, J. Ramsay, C. Cho, R. Saleh, D. Sakkas, J. Hotaling, S. Lundy, S. Vij, J. Marmar, J. Gosálvez, E. Sabanegh, H. Park, A. Zini, P. Kavoussi, S. Micic, Ryan P. Smith, G. Busetto, M. E. Bakırcıoğlu, G. Haidl, G. Balercia, N. G. Puchalt, Moncef Ben-Khalifa, N. Tadros, Jackson Kirkman-Browne, S. Moskovtsev, Xuefeng Huang, E. Borges, D. Franken, N. Bar-Chama, Y. Morimoto, K. Tomita, V. Srini, W. Ombelet, E. Baldi, M. Muratori, Y. Yumura, S. La Vignera, Raghavender Kosgi, Marlon Martínez, D. Evenson, D. Zylbersztejn, M. Roque, M. Cocuzza, M.E.M. Vieira, A. Ben-Meir, R. Orvieto, E. Levitas, A. Wiser, M. Arafa, V. Malhotra, S. Parekattil, H. Elbardisi, Luiz Carvalho, R. Dada, C. Sifer, P. Talwar, A. Gudeloglu, A. Mahmoud, K. Terras, C. Yazbeck, Bojanic Nebojsa, D. Durairajanayagam, A. Mounir, Linda G. Kahn, S. Baskaran, R. Pai, D. Paoli, K. Leisegang, M. Moein, S. Malik, O. Yaman, L. Samanta, Fouad Bayane, S. Jindal, M. Kendirci, B. Altay, D. Perovic, A. Harlev   +90 more
semanticscholar   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Trends of male factor infertility, an important cause of infertility: A review of literature

Journal of Human Reproductive Sciences, 2015
Infertility and problems of impaired fecundity have been a concern through ages and is also a significant clinical problem today, which affects 8-12% of couples worldwide. Of all infertility cases, approximately 40-50% is due to "male factor" infertility
Naina Kumar, A. Singh
semanticscholar   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

Population Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa, Andrea Costa, Sebastiano Salvidio   +2 more
wiley   +1 more source

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

FEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

A Simpson Correspondence for Abelian Varieties in Positive Characteristic [PDF]

, 2019
Let X/C be a smooth projective variety over the complex numbers. In the early 90's, Simpson established an equivalence between the category of local systems and that of the semi-stable Higgs bundles whose Chern class is zero.
Hao, Yun
core   +1 more source

Quantitative proteomic characterization of human sperm cryopreservation: using data-independent acquisition mass spectrometry

BMC Urology, 2019
Background Human sperm cryopreservation is a simple and effective approach for male fertility preservation. Methods To identify potential proteomic changes in this process, data-independent acquisition (DIA), a technology with high quantitative accuracy ...
Longlong Fu, Qi An, Kaishu Zhang, Ying Liu, Yue Tong, Jianfeng Xu, Fang Zhou, Xiaowei Wang, Ying Guo, Wenhong Lu, Xiaowei Liang, Yiqun Gu   +11 more
doaj   +1 more source

Measuring Reactive Oxygen Species in Semen for Male Preconception Care: A Scientist Perspective

Antioxidants, 2022
Oxidative stress and elevated levels of seminal and sperm reactive oxygen species (ROS) may contribute to up to 80% of male infertility diagnosis, with sperm ROS concentrations at fertilization important in the development of a healthy fetus and child ...
Patience E. Castleton, Joshua C. Deluao, David J. Sharkey, Nicole O. McPherson   +3 more
doaj   +1 more source

Autophagy in cancer and protein conformational disorders

FEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source