Results 21 to 30 of about 1,876 (259)

A Case of Conjoined Twins [PDF]

open access: yesActa geneticae medicae et gemellologiae, 1974
Among 56,249 maternities in the Collaborative Perinatal Project, 615 were twin maternities. One of these resulted in stillborn thoracoomphalopagus MZ female twins with multiple cardiovascular, alimentary and other malformations. The case is of further interst in that the mother had a surgically removed brain tumor in childhood and exhibited ...
N C, Myrianthopoulos, B, de la Burdé
openaire   +2 more sources

Successful dilation and evacuation for second trimester conjoined twin: a case report and review of the literature

open access: yesJournal of Medical Case Reports, 2021
Background Conjoined twins are a rare clinical event occurring in about 1 per 250,000 live births. Though the prognosis of conjoined twins is generally low, there is limited evidence as to the optimal method of pregnancy termination, particularly in ...
Ferid A. Abubeker   +6 more
doaj   +1 more source

First successfully separated set of thoraco-omphalopagus twins in Ilorin, Nigeria: A case report

open access: yesJournal of Clinical Sciences, 2023
The birth of babies sharing body part(s) and surviving independently is indeed a scientific marvel. Conjoined twinning is a rare phenomenon with various presentations, having an estimated incidence of 1 per 200,000 live births.
Lukman Olajide Abdur-Rahman   +19 more
doaj   +1 more source

Incorporation of Organic Counter‐Cations Into Poly(Heptazine Imide) Networks for Promoting Proton‐Coupled Electron Transfer During Photocatalytic H2O2 Evolution

open access: yesAngewandte Chemie, EarlyView.
Incorporation of N‐based onium ions into the ionic framework of poly(heptazine imide) was obtained via protonation‐deprotonation of PHI frameworks arising from a parent Na‐containing analogue. Particularly, methylammonium moieties, through their small molecular size, hydrogen bonding capabilities and rotational mobility, appear to stabilize ...
Dingqiao Ji   +6 more
wiley   +2 more sources

Catalytic Functionalization of Unactivated π‐Bonds Enabled by Bidentate Directing Auxiliaries

open access: yesAngewandte Chemie, EarlyView.
This review explores how bidentate directing auxiliaries have advanced transition‐metal catalysis for unactivated alkene/alkyne functionalization. By leveraging chelated intermediates, bidentate directing auxiliaries enable precise hydrofunctionalization, difunctionalization, and C─H activation of π‐bonds with unique selectivity and reactivity.
Seunghyeon Cho   +4 more
wiley   +2 more sources

Conjoint (Heteropagus) Twins: A Rare Entity (Case Series)

open access: yesJournal of the Scientific Society
Conjoined twins have fascinated humankind throughout the centuries because of the rarity of this type of birth; however, conjoined twins have always been a challenge for physicians.
Shuchita Dahiya   +5 more
doaj   +1 more source

Conjoined twins: Parapagus dithoracicus [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2018
Introduction. Throughout history, various types of conjoined twins have been described, many of whom lived until adulthood. The anomaly includes several varieties, with parapagus being one of the rarer forms of conjoined twins.
Juković Fehim   +6 more
doaj   +1 more source

Conjoined twins

open access: yesPrenatal Diagnosis, 1996
AbstractConjoined twins have been a source of fascination for both the general public and the medical profession since time immemorial. Their birth was initially viewed as an ominous sign of impending disaster. This was followed by a prolonged period through the Middle Ages and into the nineteenth century when they were regarded as freaks or ...
openaire   +3 more sources

Conjoined Twins in a Triplet Pregnancy: A Case Report

open access: yesCase Reports in Obstetrics and Gynecology, 2011
Background. Conjoined twins are a rare complication of monozygotic twinning and are associated with high perinatal mortality. Case. Here we present a case of conjoined twins in a triplet pregnancy diagnosed at 13 of weeks gestation.
Lynn J. Shepherd, Graeme N. Smith
doaj   +1 more source

Highly Reversible Zinc Anode Enabled by a Thiourea‐Derived Protective Layer for Alkaline Zinc Batteries

open access: yesAdvanced Science, EarlyView.
A ZnS/carbon nitride (ZnS/CN) protective coating is constructed on Zn anodes via ultrasonic spray coating, enabling uniform and stable Zn stripping/plating, suppressing dendrite formation, and mitigating parasitic side reactions, resulting in a prolonged cycling lifespan and high reversibility of the Zn anode in alkaline Zn–air batteries. ABSTRACT Zinc‐
Noam Navon   +7 more
wiley   +1 more source

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