Bridge-Dependent Donor-Metal-Acceptor-Metal-Donor (D-M-A-M-D) Systems: From Charge Transfer to Electron Transfer in Dioxolene-Ge-Diimine Complexes.

Synthesis and structural characterization of a family of germanium-dioxolene complexes with ditopic N-donor ligands (L-L) (L=1,2-bis(pyridin-2-ylmethylene)hydrazine L=1,6-bis-(pyridin-2-yl)-2,5-diaza-1,5-hexadiene, L=N,N-bis(pyridin-2-ylmethylene)-1,4-benzenediamine, L=N,N-bis(pyridin-2-ylmethylene)-(biphenyl)-4,4-diamine, L=2,2'-azopyridine) is reported. The reaction of germanium bis-catecholate with bridging ligands L - L, differing by the nature of the linker between pyridine sites gives rise to dinuclear digermanium complexes (36CatGe)L (36Cat=dianion of 3,6-di-tert-butylcatechol) 1-4 of DMAMD type (donor-metal-acceptor-metal-donor) with a charge transfer in the UV-Vis region. In opposite, the interaction of the 36CatGe with 2,2'-azopyridine (L) results in the two-electron transfer from the donor 36Cat ligands to the azopyridine bridge forming stable open-shell complex 5 [(36SQ)(36CatGe)](L) (36SQ=radical-anionic semiquinonate ligand).

A temporally and spatially explicit, data-driven estimation of airborne ragweed pollen concentrations across Europe.

Ongoing and future climate change driven expansion of aeroallergen-producing plant species comprise a major human health problem across Europe and elsewhere. There is an urgent need to produce accurate, temporally dynamic maps at the continental level, especially in the context of climate uncertainty. This study aimed to restore missing daily ragweed pollen data sets for Europe, to produce phenological maps of ragweed pollen, resulting in the most complete and detailed high-resolution ragweed pollen concentration maps to date.

Immunogenic epitope panel for accurate detection of non-cross-reactive T cell response to SARS-CoV-2.

The ongoing COVID-19 pandemic calls for more effective diagnostic tools. T cell response assessment serves as an independent indicator of prior COVID-19 exposure while also contributing to a more comprehensive characterization of SARS-CoV-2 immunity. In this study, we systematically assessed the immunogenicity of 118 epitopes with immune cells collected from multiple cohorts of vaccinated, convalescent, healthy unexposed, and SARS-CoV-2-exposed donors.

Heteroleptic La Anilate/Dicarboxylate Based Neutral 3D-Coordination Polymers.

Three new 3D metal-organic frameworks of lanthanum based on mixed anionic ligands, [(La(pQ)(BDC))·4DMF], [(La(pQ)(DHBDC))·4DMF], [(La(CA)(BDC))·4DMF] (pQ-dianion of 2,5-dihydroxy-3,6-di-tert-butyl-para-quinone, CA-dianion of chloranilic acid, BDC-1,4-benzenedicarboxylate, DHBDC-2,5-dihydroxy-1,4-benzenedicarboxylate and DMF-N,N'-dimethylformamide), were synthesized using solvothermal methodology. Coordination polymers demonstrate the rare or topology of a 3D framework. The homoleptic 2D-coordination polymer [(La(pQ))·4DMF] was obtained as a by-product in the course of synthetic procedure optimization.

SARS-CoV-2 Epitopes Are Recognized by a Public and Diverse Repertoire of Human T Cell Receptors.

Understanding the hallmarks of the immune response to SARS-CoV-2 is critical for fighting the COVID-19 pandemic. We assessed antibody and T cell reactivity in convalescent COVID-19 patients and healthy donors sampled both prior to and during the pandemic. Healthy donors examined during the pandemic exhibited increased numbers of SARS-CoV-2-specific T cells, but no humoral response.

Evaluation of lymphocytic thyroiditis in children with quantitative gray-scale ultrasound echo intensity using a PACS-based tool.

Purpose: To evaluate diagnostic performance of PACS-based quantitative gray-scale ultrasound as an objective method in evaluation of pediatric thyroiditis.

Methods: Quantitative measurements of the echo-intensity level of the thyroid were obtained from ultrasound images, retrospectively using a PACS-based tool in 37 children with the tissue-proven diagnosis. Thyroid/muscle ratio was calculated by dividing the mean echo intensity of thyroid by that of adjacent strap muscle.

Synthesis and molecular structure of indium complexes based on 3,6-di-tert-butyl-o-benzoquinone. Looking for indium(I) o-semiquinolate.

The interaction of 3,6-di-tert-butyl-o-benzoquinone (3,6-Q) with indium in toluene leads to the tris-o-semiquinolate derivative (3,6-SQ)(3)In (3,6-SQ - radical-anion of 3,6-Q). According to single-crystal X-ray diffraction analysis, this complex has a trigonal prismatic structure. Magnetic measurements revealed that the exchange interactions between odd electrons of the paramagnetic ligands in (3,6-SQ)(3)In are antiferromagnetic in character.

[Our clinical experience in treating endometriosis genitalis externa with the preparation Danoval].

By means of the serum level of estradiol and the vaginal smear indexes the antigonadotropic activity of the preparation Danoval (2-3-isoxasol-17-ethinyltestosterone) is indirectly evaluated on 15 infertility patients with laparoscopic proved endometriosis. After 5 month's course of treatment with 400 mg daily the level of estradiol decreased from 1.54 to 0.

[A trial of the inhibition of adrenal steroidogenesis in girls with hirsutism].

It was tested the influence of 1 tablet Parlodel on the concentration of hypophyseal-ovarian and hypophyseal-adrenal hormones. It was established, that 1 tablet Parlodel reduces the level of testosterone and cortisol of all tested persons at the second hour of the investigation. The influence of 1 tablet Parlodel is stronger with young girls showing higher initial levels of prolactin and testosterone.

[Serum E2 and progesterone levels in patients with atypical hyperplasia and endometrial carcinoma].

The authors study the serum levels of E2 and progesterone in 62 women with endometrial cancer and in 16 with atypical hyperplasia. Twenty women in a premenopausal phase have been used as a control group. In the patients with AH and EC normo or hypoestradiolaemia have been found.

[Clinical significance of analysis of estrogen and progesterone receptors in human uterine tissues].

The action of steroid hormones in the target cell was found to be associated with the presence of specific receptors in the cytoplasm. Uterine, endometrial, and myometrial tissues obtained at hysterectomy for endometrial carcinomatosis and fibromyomas were used. In fibromyomas, the estrogen and progesterone receptors were found to be higher in the cytosol than in the normal myometrium.

[The effect of electroacupuncture analgesia on the plasma levels of cortisol and aldosterone in orthopedic operations].

The effects of electroacupuncture on plasma cortisol and aldosterone levels in patients undergoing orthopedic operations were studied. Plasma cortisol and aldosterone levels were measured at three stages. Moderate activation of the hypothalamo-pituitary-adrenal system is considered an adjustment response of the organism to the operative trauma, with stable hemodynamic parameters.

[The differential diagnosis of hairy virilism in polycystic ovaries from adrenal cortical hirsutism].

The hormones on the axis hypophysis-ovary and hypophysis-suprarenal gland were examined in 60 women with polycystic ovaries and hairy virilism, 53 women with hirsutism and 45 healthy women, all of the same age. The results show that in hairy virilism from ovarian origin the luteinizing hormone level (LH) is increased 100% and the follicle stimulating hormone level (FSH) is decreased 200%. The index LH/FSH is increased more than 3 times.

[Androstenedione, DHEA sulfate, cortisol, aldosterone and testosterone in bronchial asthma patients].

The basic level and the 24 h rhythm of secretion of cortisol, aldosterone, androstanedion, DHEA-sulfate and testosterone were determined in 26 men with bronchial asthma, 19 up to 50 years of age, in a free from attacks period. 20 of the patients had never been treated with corticosteroids and 6 patients had used corticosteroid drugs. In 26.

[The clinical importance of determining aldosterone in the ascitic fluid].

A method for determination of aldosterone in ascitic fluid is worked out. In 20 patients with advanced liver cirrhosis and ascites the aldosterone level in the blood plasma and in the ascitic fluid was higher than in the healthy controls. The finding of elevated aldosterone level is important for the selection of diuretic since the efficacy of the diuretic treatment in patients with liver cirrhosis depends to a great extent on the level of renin activity and aldosterone.