Results 111 to 120 of about 743,359 (233)

Reproductive and lifespan characteristics of Artemia from Libyan Abu Kammash Sabkha

, 2005
The reproductive performance of the Abu Kammash Artemia was tested in three salinities (100, 140 and 180 ppt) of Instant Ocean® solution at constant temperature of 25±1°C.
El-Ghebli, H.M., Drebika, U.A., Hamza, M., El-Magsodi, M.O., Sorgeloos, P., Enbaya, M.A.   +5 more
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Early life reproductive investment affects longevity in ewes

Animal
To increase lifetime production of ewes, it has been suggested to mate ewe lambs. However, research on the effect of age at first lambing on longevity has shown conflicting results. This study investigated the impact of early life reproduction (i.e., the
L.S. Kierkegaard, N.C. Friggens, G. Steinheim, Ø. Holand, G. Klemetsdal, L. Puillet, B.A. Åby   +6 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Bifidobacterium longum subsp. infantis Y46 Extended the Lifespan of Caenorhabditis elegans by Enhancing Stress Resistance

Shipin gongye ke-ji
Probiotics are thought to slow aging and extend lifespan, yet their exact molecular mechanisms remain unclear. This study investigated the anti-aging effects of Bifidobacterium longum subsp.
Liupeng WANG, Yishan JIANG, Shuangshuang HE, Xin LI, Yan WANG, Yu JI, Lili ZHANG, Jianchun HAN   +7 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Pace and parity predict the short‐term persistence of small plant populations

Ecology and Evolution
Life history traits are used to predict asymptotic odds of extinction from dynamic conditions. Less is known about how life history traits interact with stochasticity and population structure of finite populations to predict near‐term odds of extinction.
Michelle DePrenger‐Levin, Michael B. Wunder   +1 more
doaj   +1 more source

Parenting under pressure: a cross-sectional questionnaire study of psychological distress, parenting concerns, self-efficacy, and emotion regulation in parents with cancer

Acta Oncologica
Background and purpose: As many as one in four adults with cancer have children under 18 years. Balancing parenting and cancer is challenging and can be a source of psychological distress.
Maria Romare Strandh, Pia Enebrink, Karin Stålberg, Renita Sörensdotter, Lisa Ljungman, Anna Wikman   +5 more
doaj   +1 more source

Stepwise multiple linear regression models predicting fecundity (models A1 to A5), initial egg output (models B1 to B4), adult lifespan (models C1 and C2), reproductive lifespan (models D1 and D2), and total lifespan (model E1).

, 2014
Notes: Abbreviations: Fecund = fecundity (number of eggs), 6d Eggs = early egg production (number of eggs oviposited during the first six days of the reproductive lifespan), Ad Life = adult lifespan (days), RL = reproductive lifespan (days), Tot Life ...
Alison M. Roark (654016), Karen A. Bjorndal (203542)   +1 more
core   +1 more source

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

Advanced Engineering Materials, EarlyView.
This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz, Jannik Krohn, Alexander Leichner, Dilip Chalissery, Heiko Andrae, Chris Eberl   +5 more
wiley   +1 more source