Results 151 to 160 of about 74,513 (285)

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

Journal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro, Raquel Lopes Queiroz, Cristiéle da Silva Ribeiro   +2 more
wiley   +1 more source

Characterisation of human hair follicle development

Journal of Anatomy, EarlyView.
Schematic of hair follicle development in human skin. Hair follicle primordia of similar sizes, but different densities, are laid out across the skin. The distinction between terminal and vellus hair sites is not obvious at early stages of hair follicle development.
Zoe R. Sudderick, James D. Glover, Cameron Batho‐Samblas, Barbara Bo‐Ju Shih, Denis J. Headon   +4 more
wiley   +1 more source

PBX1 and PBX3 transcription factors regulate SHH expression in the Frontonasal Ectodermal Zone through complementary mechanisms.

PLoS Genetics
Sonic hedgehog (SHH) signaling from the Frontonasal Ectodermal Zone (FEZ) is a key regulator of craniofacial morphogenesis. Along with SHH, pre-B-cell leukemia homeobox (PBX) transcription factors regulate midfacial development.
Chan Hee Mok, Diane Hu, Marta Losa, Maurizio Risolino, Licia Selleri, Ralph S Marcucio   +5 more
doaj   +1 more source

A Theory of Leadership Meta‐Talk and the Talking‐Doing Gap

Journal of Management Studies, EarlyView.
Abstract We identify managers' meta‐level talk about the positive purpose, meaning, and significance of their actions as an overlooked type of leadership behaviour and call it leadership meta‐talk. We outline why leadership meta‐talk is not necessarily truthful or deceptive, but selective and loosely coupled with leadership practice.
Thomas Fischer, Mats Alvesson
wiley   +1 more source

Hydrogen sulfide promotes proliferation and regeneration of human cerebral microvascular endothelial cells via the sonic hedgehog signaling pathway

Open Life Sciences
We investigated the effects of hydrogen sulfide (H2S) and sonic hedgehog (SHH) on the proliferation, autophagy, and apoptosis of human microvascular endothelial cells (HCMEC/D3).
Chen Hai-Yan, Huang Jian-Min, Zheng Pin, Yang Gui-Xin, Qin Bing-Bing, Zang Meng-Xue, Wang Jie, Li Xue-Bin   +7 more
doaj   +1 more source

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, EarlyView.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

SHH Positive [PDF]

, 2020
openaire   +1 more source

Beyond Deterministic Fetal Programming: Intrauterine Exposures and the Multifactorial Origins of Adiposity

Obesity Reviews, EarlyView.
ABSTRACT Excess adiposity is not a recently developed problem but has existed since at least the upper Paleolithic, allowing evolutionary selection pressures to adapt the physiology of the pregnant woman and the feto‐placental unit for maternal and fetal protection.
Gernot Desoye, Ursula Hiden, Evelyn Jantscher‐Krenn, Herbert Fluhr, Jonathan C. Wells, Sonja Entringer, Mireille N. M. van Poppel   +6 more
wiley   +1 more source

The Role of Scribble in Activating the Sonic Hedgehog (SHH) Pathway and Its Role in the Progression of SHH-Medulloblastoma

Our current knowledge of regulators in vertebrates’ Hedgehog (HH) pathway is incomplete. Gaining a better understanding of HH pathway components is appealing due to the key role of the Sonic Hedgehog (SHH) pathway in modulating the developmental ...
Zhu, Jingwen
core   +1 more source

Balancing Neutral and Responsive Competences in the Context of Functional Politicization

Public Administration, EarlyView.
ABSTRACT Democratic governments can legitimately expect permanent civil servants to undertake functionally politicized tasks, such as providing political‐tactical advice. However, safeguarding the neutrality and legitimacy of a permanent civil service in the context of functional politicization necessitates that political considerations do not override
Niels Opstrup, Heidi Houlberg Salomonsen, Caroline Howard Grøn, Anders Ryom Villadsen   +3 more
wiley   +1 more source