Model Free Approach for Non-Isothermal Decomposition of Un-Irradiated and γ-Irradiated Silver Acetate: New Route for Synthesis of Ag2O Nanoparticles

Kinetic studies for the non-isothermal decomposition of unirradiated and γ-irradiated silver acetate with 103 kGy total γ-ray doses were carried out in air. The results showed that the decomposition proceeds in one major step in the temperature range of (180–270 °C) with the formation of Ag2O as solid residue. The non-isothermal data for un-irradiated and γ-irradiated silver acetate were analyzed using Flynn-Wall-Ozawa (FWO) and nonlinear Vyazovkin (VYZ) iso-conversional methods. These free models on the investigated data showed a systematic dependence of Ea on α indicating a simple decomposition process. No significant changes in the thermal decomposition behavior of silver acetate were recorded as a result of γ-irradiation. Calcinations of γ-irradiated silver acetate (CH3COOAg) at 200 °C for 2 hours only led to the formation of pure Ag2O mono-dispersed nanoparticles. X-ray diffraction, FTIR and SEM techniques were employed for characterization of the synthesized nanoparticles

Tris(1,10-phenanthroline)cobalt(II) bis­(perrhenate) monohydrate

In the title compound, [Co(C12H8N2)3][ReO4]2·H2O, the CoII atom is coordinated by three 1,10-phenanthroline ligands in a distorted octa­hedral arrangement. In the crystal, the components are linked by O—H⋯O, C—H⋯O and aromatic π–π stacking [shortest centroid–centroid separation = 3.659 (5) Å] inter­actions

2-Amino-3-nitro­pyridinium perchlorate

The title compound, C5H6N3O2 +·ClO4 −, is comprised of discrete perchlorate anions and 2-amino-3-nitro­pyridinium cations. The anion has a typical tetra­hedral geometry while the cation presents a nearly planar [maximum deviation = 0.007 (8) Å] pyridinium ring. Undulating [C5H6N3O2 +]n chains extending along the c-axis direction are linked via N—H⋯O hydrogen bonds. The cations are further connected to the anions by N—H⋯O hydrogen bonds and weak C—H⋯O inter­actions, leading to the formation of a three-dimensional network

2-Amino-3-nitro­pyridinium perrhenate

In the title mol­ecular salt, (C5H6N3O2)[ReO4], the cations and tetrahedral anions are linked by trifurcated N—H⋯(O,O,O) and bifurcated N—H⋯(O,O) hydrogen bonds, as well as weak C—H⋯O inter­actions. This results in alternating corrugated inorganic and organic layers in the crystal

Loneliness among women with rheumatoid arthritis:A cross-cultural study in the Netherlands and Egypt

The objective of this study was to explain loneliness as experienced by women with rheumatoid arthritis (RA) in a cross-cultural context. We studied 36 Egyptian female RA patients and 140 female Dutch RA patients.. Self-report data were collected about loneliness, physical and psychological health status, social support and social network, needs for help, attitudes and feelings of guilt. Loneliness was significantly higher among Egyptian (44.2 ± 32.3) than Dutch (12.9 ± 18.9) female RA patients (F = 54.3, p < 0.001). In Egypt, 36% of the variance of loneliness could be explained by worse affect (anxiety and depression; β = 0.51), fewer children (β = 0.31), and higher negative social support for the patients (β = 0.28) in multiple regression analysis. In the Netherlands, 35% of feeling lonely could be explained by worse affect scores (β = 0.52), less positive social support for the patients (β = 0.24), and a higher degree of disability (β = 0.21). Age of the patients and disease duration only explained 4% and 3% of the loneliness of RA patients in Egypt and the Netherlands, respectively. Female Egyptian RA patients experienced more loneliness than Dutch patients. Affect is the most important and constant variable in explaining loneliness in both countries. The role of the family in perceived loneliness is greater in Egypt than the Netherlands. Low social support received by patients is important in explaining loneliness in the Netherlands but not in Egypt

Bis(2-amino-3-nitro­pyridinium) dihydrogen­diphosphate

The structure of the title compound, 2C5H6N3O2 +·H2P2O7 2−, contains infinite (H2P2O7 2−)n layers stacked perpendicular to the a axis. The 2-amino-3-nitro­pyridinium cations are arranged in pairs and are anchored between these layers, linking them by N—H⋯O and C—H⋯O hydrogen-bonding and electrostatic inter­actions between anionic and cationic species to form a three-dimensional network

Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

Background Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide.Methods A multimethods analysis was performed as part of the GlobalSurg 3 study-a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital.Findings Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3.85 [95% CI 2.58-5.75]; p&lt;0.0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63.0% vs 82.7%; OR 0.35 [0.23-0.53]; p&lt;0.0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer.Interpretation Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised

Variation as Christian identity marker in Egypt: A sociolinguistic study

This study explores how variation marks the religious identity of the Egyptian Christians and helps in describing the present sociolinguistic landscape in Egypt. Data for this study has been collected from Christian friends, students, and neighbors as well as Christian T.V. programs and videos. Data has shown significant lexical and phonological differences in expressing common religious concepts, ritual expressions, and names. These differences, which depend mainly on synonyms, paraphrasing, loanwords, and pronunciation, constitute a shibboleth in Egypt. The study has revealed that not only is variation regional or social, but religious as well. Moreover, the colloquial lexis and non-standard speech forms that Christians use contradict Ferguson’s claim that the highly codified variety of diglossic languages is always used in giving sermons.  Although the variation is not that substantiative and does not impede understanding, the study has pointed out that there is a religious-based dialect differentiation in Egypt and the Egyptian Christians could be classified as bidialectal to some extent. The ultimate goal of this variation is to mark themselves as a different religious group in an Islamic society. The plethora of the Arabic lexis and expressions and the diglossic nature of Arabic enabled the Egyptian Christians to easily communicate with Muslims and simultaneously preserve their socio-religious identity

Crystal structure of (Z)-4-[1-(4-acetylanilino)ethylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

In the solid state, the title compound, C20H19N3O2, adopts the keto–amine tautomeric form, with the H atom attached to the N atom, which participates in an intramolecular N—H...O hydrogen bond with an S(6) ring motif. The dihedral angles between the pyrazole ring and the phenyl and benzene rings are 3.69 (10) and 46.47 (9)°, respectively. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, generating C(16) chains propagating in [301]. Weak aromatic π–π stacking interactions [centroid–centroid distances = 3.6123 (10) and 3.6665 (10) Å] link the chains into a three-dimensional network