Optimism, Resilience, and General Self-Efficacy Predict Lower Somatic Burden during the COVID-19 Pandemic.

There is scarce evidence of a relationship between positive and psychosomatic characteristics. This study aimed to examine the associations of somatic burden with psychological resources such as optimism, resilience, and general self-efficacy. Russian participants (n = 1020) completed measures of psychological resources at Time 1 and somatic symptoms at Time 2.

Three-Dimensional-Printed Polymeric Cores for Methane Hydrate Enhanced Growth.

Polymeric models of the core prepared with a Raise3D Pro2 3D printer were employed for methane hydrate formation. Polylactic acid (PLA), acrylonitrile butadiene styrene (ABS), carbon fiber reinforced polyamide-6 (UltraX), thermoplastic polyurethane (PolyFlex), and polycarbonate (ePC) were used for printing. Each plastic core was rescanned using X-ray tomography to identify the effective porosity volumes.

Somatic burden in Russia during the COVID-19 pandemic.

Somatic burden has become one of the most common psychological reactions to the COVID-19 pandemic worldwide. This study examined the prevalence of somatic burden, latent profiles, and associated factors of somatic symptoms during the pandemic in a large sample of Russians. We used cross-sectional data from 10,205 Russians collected during October-December, 2021.

Determination of Sessile Drop Wetting Angle Based on μCT without the Direct Angle Measurement.

Wettability is an important factor that controls the position and transport of fluids in the porous structure of a hydrocarbon reservoir. Direct quantitative wettability measurement methods include determination of the contact angle. One of the popular laboratory methods for its measurement is the sessile drop method, where the droplet of liquid is set onto the solid sample surface and the angle between liquid and solid phases in a 2D profile image is measured using a high-resolution optical subsystem.

Hydrogenolysis of Carboxylic Ortho Esters.

It is demonstrated for the first time that carboxylic ortho esters may be reduced to acetals using hydrogen as the reducing agent. Hydrogenolysis was performed under mild conditions over commercially available hydrogenation catalysts (5% Pd/C and 5% Pt/C). The present method is especially useful for the selective transformation of carboxylic acids and lactones into acetals.

The Inner Shell Spectroscopy beamline at NSLS-II: a facility for in situ and operando X-ray absorption spectroscopy for materials research.

The Inner Shell Spectroscopy (ISS) beamline on the 8-ID station at the National Synchrotron Light Source II (NSLS-II), Upton, NY, USA, is a high-throughput X-ray absorption spectroscopy beamline designed for in situ, operando, and time-resolved material characterization using high monochromatic flux and scanning speed. This contribution discusses the technical specifications of the beamline in terms of optics, heat load management, monochromator motion control, and data acquisition and processing. Results of the beamline tests demonstrating the quality of the data obtainable on the instrument, possible energy scanning speeds, as well as long-term beamline stability are shown.

[The compliance of elderly women being at the social institution.].

The aim of the work is to analyze the prevalence and severity of the psychological characteristics of the compliance of elderly women being at the social institution in comparison with the same age group living in the family and receiving support from relatives. The experimental group of the research consisted of 27 women at the age of 70-79 years being at the social institution, named Regional State Autonomous Institution Social Welfare «Sedankinsky nursing house for the disabled and aged people» of Vladivostok, from 6 to 12 months. As well as the comparative group included 27 women at the age of 72-79 years, who became widowed and lived in families.

Low catalyst loading in ring-closing metathesis reactions.

An efficient procedure is described for ring-closing metathesis reactions. A conversion of 95% for diethyl diallylmalonate in dilute solution could be achieved within a few minutes, reaching TOF = 4173 min(-1), with very low loading of commercially available Ru catalysts that contained unsaturated NHC ligands. In general, only 50 to 250 ppm of the catalyst is required to achieve near-quantitative conversion into a broad variety of 5-16-membered heterocyclic compounds.

N-Heterocyclic carbenes via abstraction of ammonia: 'normal' carbenes with 'abnormal' character.

A new ammonia adduct of a N-heterocyclic carbene (NHC) has been isolated, which can be used as a reagent for the synthesis of transition metal carbene complexes. It represents the first example of a 1,2,3-triazolylidene with a 1,2,4-substitution pattern, thus opening a new subclass ('normal' 1,2,3-triazolylidenes) of sterically and electronically tunable NHCs.

[Our experience of biomaterial use for lamellar keratoplasty].

The results of use of biomaterial Alloplant (BMA) for lamellar keratoplasty (LKP) were analyzed. The most part of patients had ocular burns (40.2%), i.

Synthesis of Ru alkylidene complexes.

The present work describes the robust synthesis of Ru alkylidene complexes (PCy(3))(2)Cl(2)Ru=CHR - precursors for metathesis catalysts. Moreover, the dynamic behavior of complexes where R = 2-naphthyl and 2-thienyl was studied. (1)H NMR techniques were employed to establish the preferred conformations in solution for both complexes and the energy barrier for rotation around single (Ru=)CH-C(thienyl) bond was estimated (ΔG(≠) (303K) = 12.

The doping effect of fluorinated aromatic hydrocarbon solvents on the performance of common olefin metathesis catalysts: application in the preparation of biologically active compounds.

Aromatic fluorinated hydrocarbons, used as solvents for olefin metathesis reactions, catalysed by standard commercially available Ru precatalysts, allow substantially higher yields to be obtained, especially of challenging substrates, including natural and biologically active compounds.

Synthesis of enantiomerically pure 1,2,3,4-tetrahydro-beta-carbolines and N-acyl-1-aryl ethylamines by rhodium-catalyzed hydrogenation.

The rhodium-catalyzed asymmetric hydrogenation of different enamides, in particular, dihydro-beta-carboline derivates, was investigated in the presence of chiral phosphorus ligands. Enantioselectivities of up to 99 % ee were obtained after ligand screening and optimization of the reaction conditions. The scope and limitation of the catalysts were shown in the synthesis of optically active tetrahydro-beta-carbolines and other benchmark N-acyl-1-aryl ethylamines.

A highly tunable family of chiral bisphospholanes for rh-catalyzed enantioselective hydrogenation reactions.

A set of 16 new and closely related bisphospholane ligands have been prepared by using a highly flexible and convergent approach. Each synthesis can be performed on an industrially relevant scale. The bisphosphines differ in the nature of the bridge connecting both phospholane units.

The first highly enantioselective homogeneously catalyzed asymmetric reductive amination: synthesis of alpha-N-benzylamino acids.

High-throughput screening considering a library of 96 chiral P-ligands involved in two types of Rh(I) complexes was used for the identification of homogeneous catalysts for the highly enantioselective reductive amination of alpha-keto acids with benzylamine. After optimization of the reaction conditions and scale-up with a cationic Rh-Deguphos catalyst, a range of chiral alpha-amino acids could be produced by this new reaction in good yield and by up to 98% ee.

Dependence of enantioselectivity on the distribution of a chiral hydrogenation catalyst between an aqueous and a micellar phase: investigations using pulsed field gradient spin echo NMR spectroscopy.

The enantioselectivity obtained from rhodium complex catalyzed hydrogenations conducted in water can often be increased considerably by the addition of amphiphiles. At present the reasons for this increase in selectivity are not fully understood. The application of pulsed field gradient spin echo NMR (PGSE-NMR) spectroscopy to determine the average diffusion coefficients of the catalysts in both known and novel examples of asymmetric hydrogenation shows definitively that the increase in enantioselectivity is coupled with an aggregation of the catalyst to the micelles.

[Multiple genes of delta-endotoxins from Bacillus thuringiensis subspecies galleriae].

Cloning and expression in E. coli delta-endotoxin genes cryIAb7, cryIG and, cryIX from Bacillus thuringiensis ssp galleriae has been performed. Restriction mapping and partial sequencing have shown the identity of the 3'-terminal parts of cryIG and cryIX, although their 5'-terminal halves corresponding to the toxin are unique.

[Creation of a hybrid protein gene based on Bacillus thuringiensis delta endotoxins CryIIIA and CrIA(a) and expression of its derivatives in Escherichia coli].

The 5'-terminal fragment (containing 1-565th codons) of Bacillus thuringiensis var. tenebrionis gene for the Coleoptera-specific delta-endotoxin CryIIIA was cloned. This sequence was extended with either only a homologous fragment of CryIA(a) or that one together with in-frame NPTII or GUS coding sequences.

Nucleotide sequence of a novel delta-endotoxin gene cryIg of Bacillus thuringiensis ssp. galleriae.

A gene cryIg coding for entomocidal protein delta-endotoxin of Bacillus thuringiensis ssp. galleriae str. 11-67 named CryIG has been cloned and sequenced (EMBL accession number X58120).

Molecular cloning and primary structure of Thermoactinomyces vulgaris carboxypeptidase T. A metalloenzyme endowed with dual substrate specificity.

A gene coding for an extracellular Zn-carboxypeptidase of Thermoactinomyces vulgaris has been cloned and sequenced (EMBL X56901). This enzyme named carboxypeptidase T reveals simultaneously both types of substrate specificity characteristic of mammalian carboxypeptidases A and B. The carboxypeptidase T gene is primarily expressed in E.