Results 71 to 80 of about 68,328 (223)
Chemistry – A European Journal, EarlyView.We report an efficient method for late‐stage installation of “clickable” alkyne groups into diverse (hetero)arenes. Using a dual‐ligand palladium catalyst that combines an NASA ligand with an N‐heterocycle, an acrylate unit bearing a terminal alkyne can be introduced via nondirected C─H activation.
Tommaso Braga +2 more
wiley +1 more source
Biological variables in forager fertility performance: a critique of Bongaarts' model [PDF]
, 1982 African Studies Center Working Paper No. 60During the period of the 1960s and 1970s, a considerable amount of scholarly energy was devoted to studying the process of "modernization." Scholars, particularly political scientists and anthropologists ...
Wilmsen, Edwin
core
Bioaugmentation mitigates the impact of estrogen on coliform-grazing protozoa in slow sand filters [PDF]
, 2016 Exposure to endocrine-disrupting chemicals (EDCs), such as estrogens, is a growing issue for human and animal health as they have been shown to cause reproductive and developmental abnormalities in wildlife and plants and have been linked to male ...
Collins, Gavin +3 more
core +10 more sources
International Journal of Gynecology &Obstetrics, EarlyView.Abstract Objective This study evaluates the association between obesity and the presence of bowel endometriosis in patients undergoing surgery. Methods A retrospective cross‐sectional observational study was conducted with patients treated between September 2023 and December 2024, at a specialized endometriosis outpatient clinic of a tertiary hospital ...
Tereza Carolina Fonseca Corrêa +1 more
wiley +1 more source
Synthesis and Antiproliferative Activity of Steroidal Diaryl Ethers
Molecules, 2023 Novel 13α-estrone derivatives have been synthesized via direct arylation of the phenolic hydroxy function. Chan–Lam couplings of arylboronic acids with 13α-estrone as a nucleophilic partner were carried out under copper catalysis.
Édua Kovács +8 more
doaj +1 more source
Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]
, 2016 The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D. +2 more
core +2 more sources
PM&R, EarlyView.Abstract Background Due to consequences of energy‐related oligo‐/amenorrhea (Oligo/Amen) among exercising females, recovery of menses (ROM) is a priority. ROM is inconsistently defined and rarely reported with reproductive hormone (estrogen, progesterone) data, making it difficult to know when females achieve adequate recovery. Objective The purpose of
Rebecca J. Mallinson +4 more
wiley +1 more source
Veterinary Record, EarlyView.Abstract Background Determination of the serum progesterone (P4) concentration is of high importance in reproductive medicine and may be applied for diagnosing pregnancy in South American camelids. P4 measurements in alpacas and llamas are usually performed using immunoassays, which are time consuming and require appropriate expertise of laboratory ...
Lina Längerer +5 more
wiley +1 more source
Metabolism of sex hormones in the aortic wall
Journal of Lipid Research, 1968 The metabolism of labeled sex hormones was examined in human, canine, and rat aortas. Isolated arterial tissue converted estrone to estradiol, estradiol to estrone, and estrone sulfate to estrone and estradiol.
Aram V. Chobanian +3 more
doaj +1 more source
Determination of steroid estrogens in wastewater by high performance liquid chromatography-tandem mass spectrometry [PDF]
, 2007 This paper discusses the requirement for, and presents an analytical procedure for, the determination of four unconjugated steroid hormones and a conjugated steroid (estrone-3-sulfate) in wastewaters.
A. Boobis +53 more
core +1 more source