Results 51 to 60 of about 329,158 (276)

Astrocyte Enrichment of 3D Cortical Constructs Enhances Brain Repair

Advanced Science, EarlyView.
This study highlights the role of astrocytes in supporting neural progenitor cell survival and differentiation after traumatic brain injury. Astrocytes enhanced neuronal differentiation, improved cell survival in co‐cultures, and promoted integration of microfluidics‐based implants with host tissue following implantation. Additionally, increased axonal
Elisa M. Cruz, Luana C. Soares, Gretchen Greene, Fernando Messore, Mohammed Abuelem, Mingyu Li, Caroline Andersen, Mirriam Domocos, Elisa Vitiello, Rabeah Abdul Razak, Marlene Lawston, Gabriel Moser, Talia Vasaturo‐Kolodner, Mona Barkat, Roslyn M. Bill, Edward Mann, Linna Zhou, Mootaz M. Salman, Hagan Bayley, Zoltán Molnár, Francis G. Szele   +20 more
wiley   +1 more source

Sulfakinin Signaling Sense Circulating Fructose and Suppresses Food Consumption via Insulin‐Like Peptide in Bactrocera Dorsalis

Advanced Science, EarlyView.
This study discovered a new pathway that tells fruit flies when to stop eating. It found that rising blood sugar (fructose) is detected by a sensor called GR43a. This triggers a chain reaction involving the satiety signal sulfakinin and its receptor, ultimately activating a final satiety signal, ILP5.
Hong‐Fei Li, Bao Dong, Zheng‐Lin Ren, Xue‐Guang Zhu, Quan Lei, Yoonseong Park, Jin‐Jun Wang, Hong‐Bo Jiang   +7 more
wiley   +1 more source

Modern and Ancient Genomes Reveal Neolithic Paternal Expansions of Millet and Rice Farmers and Demic Diffusion from China into Mainland Southeast Asia

Advanced Science, EarlyView.
This study clarifies the genetic patterns of paternal lineages across East Asia and Mainland Southeast Asia. Han populations are relatively homogeneous, whereas southern ethnolinguistic minorities display regional structures. Shared Y‐chromosome lineages indicate Neolithic expansions and extensive north‐south gene flow, supporting demic diffusion ...
Yunhui Liu, Lintao Luo, Yutong Jiang, Minzhu Zhao, Ting Yang, Zhiyong Wang, Lisiteng Luo, Yuhang Feng, Zihao Zhu, Yuzhu Wang, Limei Zhang, Bofeng Zhu, Chao Liu, Renkuan Tang, Mengge Wang, Guanglin He   +15 more
wiley   +1 more source

Fueling Defense: Effects of Resources on the Ecology and Evolution of Tolerance to Parasite Infection

Frontiers in Immunology, 2018
Resource availability is a key environmental constraint affecting the ecology and evolution of species. Resources have strong effects on disease resistance, but they can also affect the other main parasite defense strategy, tolerance. A small but growing
Sarah A. Budischak, Sarah A. Budischak, Clayton E. Cressler   +2 more
doaj   +1 more source

Temperature effects on Florida applesnail activity: implications for snail kite foraging success and distribution [PDF]

, 2002
The endangered Florida snail kite (Rostrhamlls sociaiJilis) feeds exclusively on applesnails (Pomacea pailiclosa), yet we lack direct observations that link applesnail behavior to snail kite foraging success.
Stevens, Amanda J.
core  

Honeybee rebel workers invest less in risky foraging than normal workers [PDF]

, 2018
In eusocial insect colonies, workers have individual preferences for performing particular tasks. Previous research suggests that these preferences might be associated with worker reproductive potential; however, different studies have yielded ...
Kuszewska, Karolina, Miler, Krzysztof, Woyciechowski, Michał   +2 more
core   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

High Ambient Temperatures Are Associated With Reduced Foraging Capacity in an Equatorial Mammal, the Banded Mongoose (Mungos mungo)

Ecology and Evolution
Due to anthropogenic climate change, there is substantial interest in how temperature variation impacts reproduction and survival in animal populations; however, the underlying mechanisms are often poorly understood.
Monil Khera, Kevin Arbuckle, Onismus Bwambale, Francis Mwanguhya, Megan H. Nicholl, Michael A. Cant, Hazel J. Nichols   +6 more
doaj   +1 more source

Optimal L\'{e}vy-flight foraging in a finite landscape

, 2014
We present a simple model to study L\'{e}vy-flight foraging in a finite landscape with countable targets. In our approach, foraging is a step-based exploratory random search process with a power-law step-size distribution $P(l) \propto l^{-\mu}$. We find
Jurdak, Raja, Kusy, Branislav, Liu, Jiajun, McKeown, Adam, Parry, Hazel, Sommer, Philipp, Westcott, David, Zhao, Kun   +7 more
core   +1 more source

Intra-dance variation among waggle runs and the design of efficient protocols for honey bee dance decoding [PDF]

, 2012
Noise is universal in information transfer. In animal communication, this presents a challenge not only for intended signal receivers, but also to biologists studying the system.
Couvillon, Margaret J, Harris-Jones, Elisabeth L, Kuepfer, Amanda M, Mackenzie-Smith, Samantha J, Ratnieks, Francis L W, Riddell Pearce, Fiona C, Rozario, Laura A, Schürch, Roger   +7 more
core   +3 more sources