Results 121 to 130 of about 74,541 (274)

Are Abnormal Yolk Sac Characteristics Important Factors in Abortion Rates? [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2012
Background This study was undertaken to determine if there were different abortion rates between normal and abnormal yolk sacs. Materials and Methods In this cohort study, the yolk sac characteristics of 193 consecutive pregnant women, of 5-6.5 ...
Sanam Moradan, Mohammad Forouzeshfar
doaj  

Development of extra-embryonic membranes and fluid compartments [PDF]

open access: yes, 2001
An account of the development of extra-embryonic membranes in the embryo of poultry. The roles of these membranes in the transfer of water from albumen to yolk and to embryonic tissue is ...
Baggott, Glenn K.
core  

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

open access: yesActa Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi   +6 more
wiley   +1 more source

Changes in gastrointestinal motility and gut hormone secretion after Roux‐en‐Y gastric bypass and sleeve gastrectomy for individuals with severe obesity

open access: yesClinical Obesity, Volume 15, Issue 2, April 2025.
Summary Background Bariatric surgery is very effective in long‐term weight management. The present study was undertaken to investigate the short‐term effects of sleeve gastrectomy (SG) and of Roux‐en‐Y gastric bypass (RYGB) on (a) gastrointestinal (GI) motility, that is gastric emptying and oro‐cecal transit time and (b) secretion of regulatory gut ...
Jennifer A. Wilbrink   +4 more
wiley   +1 more source

Abnormal cleavage patterns in equine in vitro‐produced embryos lead to higher early pregnancy loss

open access: yesEquine Veterinary Journal, EarlyView.
Summary Background Despite significant advances, in vitro production (IVP) of equine embryos continues to lack standardised embryo classification criteria and is associated with increased rates of early pregnancy loss compared with in vivo‐derived blastocysts.
Soledad Martin‐Pelaez   +6 more
wiley   +1 more source

Nomogram for predicting testicular yolk sac tumor in children based on age, alpha-fetoprotein, and ultrasonography

open access: yesFrontiers in Pediatrics
ObjectiveTo establish a predictive model for distinguishing testicular benign or yolk sac tumors in children.MethodsWe retrospectively analyzed data for 119 consecutive patients with unilateral testicular tumors treated at a single institution from June ...
Huan Yu   +13 more
doaj   +1 more source

Zebrafish as a model for Catel–Manzke syndrome—identification and characterization of the zebrafish TGDS ortholog

open access: yesThe FEBS Journal, EarlyView.
Zebrafish Tgds, when expressed as a recombinant protein, catalyzes the dehydration of UDP‐D‐glucose, the initial step in the formation of 6‐deoxyhexoses. Corresponding Tgds mutations found in Catel–Manzke syndrome patients lead to reduced enzymatic activity and stability.
Maria Rosaria Coppola   +11 more
wiley   +1 more source

Thermal Tolerances of Interior Alaskan Arctic Grayling (Thymallus arcticus) [PDF]

open access: yes, 1973
The work upon which this report is based was supported in part by funds (Project A-041-ALAS) provided by the United States Department of the Interior, Office of Water Resources Research, as authorized under the Water Resources Act of 1964, as ...
Carlson, Robert F.   +1 more
core  

Tolerance of Egg and Yolk‐Sac Larval Yellowfin Sole (Limanda aspera) to Ocean Warming and Acidification

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT Yellowfin sole (Limanda aspera) support the largest flatfish fishery in the world and contribute substantially to the eastern Bering Sea (EBS) flatfish catch. The EBS has been warming and acidifying, trends that are expected to intensify into the future.
Emily Slesinger   +5 more
wiley   +1 more source

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