Miracle-dz/UniFAR-FTUs huggingface dataset:
Syntheses, Crystal Structures, and Magnetic Properties of Two Mn(II) Coordination Polymers Based on the 5-Aminotetrazole Ligand: Effect of Sources of Ligand on Construction of Topological Networks

Two new Mn(II) coordination polymers, [Mn15(atz)18(μ3-OH)4(μ3-SO4)4]n·9nH2O (1) and [Mn8(atz)4(μ-OH)4(μ4-SO4)4(H2O)4]n·nH2O (2) (atz = 5-aminotetrazolate), have been prepared under similar hydrothermal conditions except the difference of the source of the atz ligand. They were characterized by single-crystal X-ray diffraction studies, variable temperature (1.8−300 K) magnetic measurements, and thermal gravity analysis. The results of X-ray crystallographic analysis reveal that compound 1 is a 3D coordination polymer with a (3,4)-connected (83)4(86)3 topology, which is built from trinuclear [Mn3(μ3-SO4)(μ3-OH)] clusters and bridging mononuclear Mn centers. In compound 2, it contains a 3D inorganic cationic [Mn8(μ3-OH)4(μ4-SO4)4]n4+ network with an unprecedented (4,6)-connected topological net, the Schlafli symbol of which is (33·82·9)2(36·84·95). The inorganic cationic net is templated by the atz ligands to form a microporous framework with hydrophilic channels. The variable temperature magnetic data indic.
Complete 1H and 13C NMR assignments of stigma‐5‐en‐3‐O‐β‐glucoside and its acetyl derivative

Unambiguous and complete assignments of 1H and 13C NMR chemical shifts for stigma‐5‐en‐3‐O‐β‐glucoside, isolated from Brassica rapa sb.sp. campestris and Aloe barbadensis, and its acetyl derivative are presented, based on DEPT, HETCOR, COLOC, HMBC, COSY‐45°, NOESY and J‐resolved experiments. Copyright © 2001 John Wiley & Sons, Ltd.
The Value of F18-FDG PET/CT in Medullary Thyroid Cancer Patients with Persistent Elevated Calcitonin Levels

Purpose of the Study In this retrospective study, we reported our experience with FDG-PET/CT in evaluation of medullary thyroid cancer (MTC) patients with persistent elevated calcitonin levels. Materials and Methods A total of 33 F-18 FDG PET/CT scans and 9 somatostatin receptor imaging (SRI) (6 In-111 octreotide and 3 Ga-68 DOTATATE PET/CT) of 25 MTC patients with persistently elevated calcitonin levels, performed for staging and restaging, were analyzed retrospectively. The scans were compared lesion by lesion with histopathological data and other imaging methods. Because all patients had abnormally high calcitonin levels defined as persistent disease, negative F-18 FDG PET/CT scans accepted as false negative. Because there was no true-negative study, only sensitivity and positive predictive value (PPV) were calculated. Calcitonin levels and SUVmax values were assessed by Mann- Whitney U test and the ROC curve analysis. Results There were 11 true-positive, 11 false-positive and 11 false-negative F-18 FDG PET/CT scans. Sensitivity and PPV were 50% and 50% respectively. Difference of mean calcitonin level between true-positive cases and the others was nonsignificant. SUVmax of true-positive lesions were significantly higher than of the others. All 9 SRIs were negative. Conclusions FDG PET/CT scan appeared to be less sensitive. However, it should be considered that F-18 FDG PET/CT was performed to the patients with only no lesion had been detected by the other imaging modalities in this group. Because F-18 FDG PET/CT was not performed when a residual or recurrent lesion had clearly been detected before, sensitivity of 50% was considered to be acceptable.
Effects of temperature and pressure on asphaltene particle size distributions in crude oils diluted with n-pentane

The effects of temperature (0--150 C) and pressure (0--5.6 MPa) on the size distribution of asphaltene particles (or agglomerates), formed as a result of diluting the crude oils with n-pentane, were studied using a modified laser particle analyzer. Four crude oils, ranging from an asphaltic condensate to a heavy oil-sand bitumen, were tested in this investigation. The average size of asphaltene agglomerates ranged from 266 to 495 Am. The results suggest that the mean asphaltene particle size increases with pressure and decreases slightly with temperature; however, no trends were evident with the molar mass of crude oils. Although the particle size distributions in most cases were unimodal and described adequately by the log-normal distribution function, bimodal distributions were also identified in certain cases.
Stack-CNN: An End-to-end Target Relative Pose Recognition Method

With the rapid development of the aerospace industry in the world in recent years, the precise measurement of the relative position and attitude of spacecraft has become one of the hot spots in the development of space technology. Among them, the observation technology of computer vision based on optical imaging is the basis for realizing the automation of on-orbit spacecraft position and attitude measurement. It is required that the vision system can measure the relative position and attitude between the observer and the target online. In recent years, a large number of target pose measurement methods based on deep learning have emerged, which are also partially applied in the aerospace field. However, these methods generally have the problems of only recognizing a single image, large amount of calculation, and ignoring the information between images. In order to solve the problems above, we propose an end-to-end target relative pose recognition method based on CNN. This method uses the information between multiple consecutive images to realize the end-to-end recognition of relative pose and absolute pose, and does not need subsequent pose calculation. The advantages of this method, such as low computation, high precision and fast speed, ensure that this method has good application value in the intelligent application of mobile terminals.
Growth Analysis and the Determinants of Entrepreneurial Orientation in the Small-Scale Poultry Subsector in Delta State, Nigeria

Entrepreneurial orientation is vital to growth and development, but lacking in many small-scale enterprises. This study investigated growth and entrepreneurial orientation in the small-scale poultry subsector of Delta State, Nigeria. It also ascertained the drivers of poultry entrepreneurial orientation in the study area. A multistage sampling procedure was used to collect primary data from 180 poultry farmers, through a questionnaire. A four-point Likert scale of five items was used to measure entrepreneurial orientation from innovativeness, proactiveness, and risk-taking. The data were analyzed using descriptive and inferential statistics, including gross margins, an autoregressive lag model, and logistic regression. The majority (57.7%) of the farmers are female. The small-scale poultry entrepreneurs had an orientation that was above average. The autoregressive lag model result indicated an increase in stock size and gross margins of poultry enterprises. It was forecast that the growth trend would increase up to 2022. Furthermore, the ANOVA result was statistically significant at 0.002*** and 0.001*** for stock size and gross margins, respectively. Years of experience and training in poultry farming and noninvolvement of entrepreneurs in other occupations influence their entrepreneurial orientation. Poultriy entrepreneurs must be trained while they adopt poultry farming as their principal occupation.
Malaria vectors distribution, abundance and assessment of factors influencing acceptance and use of Insecticide Treated Nets in Uyo Akwa Ibom State Nigeria

Volume 3, Issue 1, January 2021 Received : 09 June 2020 Accepted : 07 October 2020 Published : 01 January 2021 doi: 10.33472/AFJBS.3. 1.2021. 165-175 Article Info Abstract The abundance and distribution of malaria vectors as well as compliance with the use of Insecticide Treated Nets (ITNs) are key factors in the fight against malaria. Malaria vector species composition, distribution and attitude of residents of Uyo to ITNs were studied. Weekly surveys were conducted in 2018. Anopheles mosquito larvae were collected from the four different axes of the metropolis, reared to adult stage and morphologically identified. Four hundred (400) structured and pre-tested questionnaires were administered to 400 respondents aged 18-70 for their knowledge and compliance with ITNs use [285 (71.25%) females and 115 (28.75%) males]. A total of 689 Anophelines were collected and identified, 289 (42%) males and 400 (58%) females distributed as follows: 182 (26.41%) from Idoro Road, 168 (24.38%) from Use Offot, 145 (21.04%) from Oron Road and 194 (28.15%) from Ikpa Road areas respectively. Anopheles gambiae s.l. made up 98 % (675) while 14 (2%) of the total collections were Anopheles funestus s.l. There was a significant difference in abundance of the two mosquito species in the studied areas (p < 0.05, (0.000); x2 calc=2.41, df =1). More females, 171 (60%) than males 46 (40%), used ITNs although there was no significant difference (p > 0.05), (0.000); 2 = 28.050, df = 1). There was a significant difference (2 = 48.876, df = 1, p = 0.000*) in the usage of ITNs by respondents of different ages. There was no significant difference (2 = 1.265, df = 2, p = 0.531) in ITNs use with household population. Anopheles gambiae s.l. were the major malaria vectors from this study. Poor awareness of the benefits of ITNs was found although many respondents knew about the nets. Public enlightenment on the use and benefits of insecticide treated nets is needed to demystify the negative perceptions of insecticides with which the nets are treated and sustain the gains of the National Malaria Elimination Program.
THE DETERMINANTS OF DIVIDEND POLICY OF PUBLIC LISTED COMPANIES IN MALAYSIA

This study was conducted to identify the determinants of dividend policy of public listed companies in Malaysia. The first objective of this study is to identify the relationship between earnings, cash flow, debt, investment opportunity, firm size, growth and dividend policy. The second objective is to identify the factors influencing dividend policy of public listed companies in Malaysia. The data were collected from annual report of 26 public listed companies in Bursa Malaysia starting from 2005 until 2015. The dependent variable is the dividend per share which represents dividend policy. The independent variables were earnings, cash flow, debt, investment opportunity, firm size and growth. Using panel data analysis, the finding shows that earnings, cash flow, firm size, investment opportunity and growth have positive relationship while debt has negative relationship with dividend policy. The result revealed that only earnings and cash flow have the significant effect on the dividend policy, while firm size, investment opportunity, growth and debt were found to have insignificant effect towards dividend policy of public listed companies in Malaysia.
Comparative study of dexamethasone nebulisation with magnesium sulphate nebulisation in preventing post operative sore throat following endotracheal intubation

Introduction: Post-operative sore throat is one of the most common complications following endotracheal intubation. Though considered minor complication, it may cause significant patient dis-satisfaction. Various non-pharmacological and pharmacological trials have been used with variable results. Objectives: To compare the efficacy of nebulised dexamethasone with that of nebulised magnesium sulphate in decreasing the incidence and severity of postoperative sore throat (POST). Materials and Methods: In this prospective double blind study 90 patients undergoing surgery under general anaesthesia with endotracheal intubation lasting <3hr were randomly assigned into two equal groups. Group D received dexamethasone 8mg (2ml) with 3ml saline nebulisation and group M received magnesium sulphate (50%W /V 2ml) with 3ml saline nebulisation 30 min before the induction of anaesthesia. Primary outcome assessed was incidence and severity of POST. Secondary outcome assessed were the incidence of post-operative hoarseness and cough. Results: Compared to group M, significantly lesser number of patients in group D had post-operative sore throat at 0hr (p= 0.0262), 4 hr (p=0.00022), 8 hr (p=0.00039) and 12hr (p=0.000657). None of the patients in group D had any hoarseness of voice at 0hr, 4 hr, 8 hr of assessment (p= <0.05). Except one patient in group M, none of our patients in either of the group had cough at any point of assessment. Conclusion: Preoperative dexamethasone nebulisation just before induction of anaesthesia is an effective method of reducing the incidence and severity of POST following endotracheal intubation. Dexamethasone nebulisation reduces the severity of sore throat more effectively than magnesium sulphate nebulisation.
Diverse Human Immunodeficiency Virus–1 Drug Resistance Profiles at Screening for ACTG A5288: A Study of People Experiencing Virologic Failure on Second-line Antiretroviral Therapy in Resource-limited Settings

© The Author(s) 2019. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com. DOI: 10.1093/cid/ciz1116 Diverse Human Immunodeficiency Virus–1 Drug Resistance Profiles at Screening for ACTG A5288: A Study of People Experiencing Virologic Failure on Second-line Antiretroviral Therapy in Resource-limited Settings
Organizational Justice and Organizational Commitment

The purpose of this study was to analyze the influence of organizational justice toward organizational commitment on Government Employee, Southeast Sulawesi Provincial Offices. The design of this study was explanatory research. Data were collected using survey questionnaire and in-depth interviews. The units of analysis of this research were the Government Employees of Southeast Sulawesi Provincial Offices. Since the sample units were 41 Offices, three-stage sampling was applied to draw the sample. The number of sample selected was 97 respondents through Slovin Formula. Method of data Analysis used Partial Least Square (PLS). The result of this study showed that organizational justice has positive and significant influence on organizational commitment.
Pathogenicity and distribution of two species of Cytospora on Populus tremuloides in portions of the Rocky Mountains and midwest in the United States

Historically, Cytospora canker of quaking aspen was thought to be caused primarily by Cytospora chrysosperma. However, a new and widely distributed Cytospora species on quaking aspen was recently described (Cytospora notastroma Kepley & F.B. Reeves). Here, we show the relative pathogenicity, abundance, and frequency of both species on quaking aspen in portions of the Rocky Mountain region, and constructed species-level phylogenies to examine possible hybridization among species. We inoculated small-diameter aspen trees with one or two isolates each of C. chrysosperma and C. notastroma in a greenhouse and in environmental growth chambers. Results indicate that both Cytospora species are pathogenic to drought-stressed aspen, and that C. chrysosperma is more aggressive (i.e., caused larger cankers) than C. notastroma, particularly at cool temperatures. Neither species cause significant canker growth on trees that were not drought-stressed. Both C. chrysosperma and C. notastroma are common on quaking aspen, in addition to a third, previously described species, Cytospora nivea. Multiple Cytospora species often co-occur on the same host tree, and evidence of hybridization among species exists.
Ergonomics as Perceived by Staff Nurses and Its Relation to Their Job Satisfaction

Context: Ergonomics is a systems-oriented discipline that extends across all aspects of the work environment and human activity to enhance safety, efficiency, quality of work-life, operators’ comfort and productivity that increase job satisfaction of the health care team members as well as staff nurses. Aim: This research aimed to assess ergonomics as perceived by staff nurses and its relation to their job satisfaction. Methods: A descriptive-analytical cross-sectional design utilized for carrying out this study. The current study was conducted in surgical building at Benha University Hospitals, Qaliobia Governorate, Egypt. Study subjects were all available (200) staff nurses. Two tools used to collect data, namely, ergonomics assessment questionnaire and job satisfaction assessment questionnaire. Results: The results of the study revealed that ergonomics was inadequate as perceived by more than two-thirds (71%) of the studied staff nurses. Also, more than two thirds (72.5%) of them had a low level of job satisfaction. Moreover, there was a highly statistically significant positive correlation at (P-value<0.001) between total ergonomics and total job satisfaction. Conclusions: The study concluded that there was a highly statistically significant positive correlation between total ergonomics and total job satisfaction. The study recommended that hospital administration should deploy more efforts in improving the workplace ergonomics; this includes the work setting, and equipment. Nursing administrators should develop strategies for improving the ways of work to perform tasks that distributed throughout the shift to enhance staff nurses' job satisfaction. Also, Future studies should be conducted to investigate the relationship between ergonomics and other variables, like job performance, turnover, and productivity.
Impact of Intervention Program on Enhancing Spelling and Writing Skills among Saudi Primary School Pupils with Learning Disabilities

Learning disabilities (LD) include difficulties in learning the basic language skills including speaking, reading, spelling and writing. Moreover, the pupils at schools can achieve better through proper support and intervention than conventional methods. In the Saudi context, the Ministry of Education (MoE) incorporated LD in its educational system in 1996 to facilitate the learning of pupils with LD nationwide. This study is an attempt to explore the impact of the intervention program on enhancing the basic skills in spelling and writing of the Arabic language among Saudi primary school pupils with LD studying between first and third grades. The study sample comprised of 38 male pupils with LD, aged between 6-8 years, and were selected from four primary schools in Rafha Province. The study adopted the quasi-experimental research design including control and experimental groups. The results of the study revealed that there was a significant and positive impact of the program on enhancing the performance of the participants in both spelling and writing skills. It is thought that pupils can achieve better through appropriate intervention. Future studies on examining the performances of spelling and writing independently are recommended.
Determination of nucleic acid backbone conformation by proton nmr

In DNA or RNA duplexes, the six-bond C3'-O3'-P-O5'-C5'-C4'-C3' backbone linkage connecting adjacent residues contains six torsion angles (epsilon, zeta, alpha, beta, gamma, delta) but only four protons. This seriously limits the ability to define the backbone conformation by NMR using purely 1H-1H distance geometry (DG) methods. The problem is further compounded by the inability to assign two of the four backbone protons, namely the poorly resolved H5' and H5'' protons, and invariably leads to DG structures with poorly defined backbone conformations. We have developed and tested a reliable method to constrain the beta, gamma, and epsilon (and indirectly alpha and zeta) backbone torsion angles by lower-bound NOE distances to unassigned H5'/H5'' resonances combined with either 1H line widths or the conservative use of sigma J measurements; the method relies only on 1H 2-D NMR data, does not involve any structural assumptions, and leads to much improved backbone convergence among DG structures. The C4'-C5' torsion angle gamma is constrained by lower-bound NOE distances from H2' and from H6/H8 to any H5'/H5'', as well as by sigma JH4, coupling measurements in the 3.9-4.4 ppm region; delta is constrained by H1'-H4' NOE distances and by H3'-H4' and H3'-H2'' J couplings in COSY data; epsilon is partially constrained by H3' line width and/or further constrained by subtracting the minimum possible sigma JH3'-H from the observed sigma JH3' (COSY) to arrive at the maximum possible JH3'-P, which is then converted to H3'-P distance bounds. The angle beta is partially constrained via H5'-P and H5''-P distance bounds consistent with the maximum H5'-P and H5''-P J couplings derived from the observed H5' and H5'' line widths, while alpha and zeta are indirectly constrained by lower distance bounds on the observed (n)H1' to (n + 1)H5'/H5'' NOEs combined with the prior partial constraints on beta, gamma, delta, and epsilon. The combined effects of these additional constraints in determining distance geometry structures have been demonstrated using a 12-base duplex, [d(GCCGTTAACGGC)]2. Coordinate RMSDs per atom between structures refined with these constraints from random-embedded DG structures, from ideal A-DNA, and from B-DNA starting structures were less than 0.4 A for the central 8 base pairs indicating good convergence. All backbone angles for the central 8 base pairs are very well constrained with less than 10 degrees variation in any of the 48 torsion angles.
Gastroesophageal reflux disease in patients with various comorbidal pathology

The aim of the work – conduct a literature review to study the most important and complex aspects in the diagnosis and treatment of gastroesophageal reflux disease that are encountered in the practice of a family doctor. Results. Gastroesophageal reflux disease is becoming an increasingly important disease for the young and ablebodied population, which gives it not only a medical, but also an economic aspect. This is one of the most common pathologies in the practice of not only a therapist, family doctor and gastroenterologist, but – due to the presence of extraesophageal manifestations – in a wider range of medical specialties. Since gastroesophageal reflux disease has many “masks”, this leads to delayed diagnosis and treatment. This disease does not have a “gold standard” in routine diagnostics, and the presence of its refractory forms leads to treatment failures and complications. With a comorbid course of gastroesophageal reflux disease, both diagnosis and treatment require an integrated approach. Conclusions. Gastroesophageal reflux disease remains one of the most common diseases in the practice of a family doctor. Despite the extensive study of this pathology, it continues to remain difficult in terms of diagnosis and treatment, which is associated with the presence of extraesophageal manifestations, comorbid and refractory course. This requires an additional study of pathogenetic mechanisms and the development of therapeutic and diagnostic measures on the basis of this
UNTANGLING THE CORPORATE SOCIAL RESPONSIBILITY-FINANCIAL PERFORMANCE PARADOX: THE ROLE OF COMPETITIVE ACTIVITY

A central debate in corporate social responsibility (CSR) research is whether CSR hurt or help shareholders. Our study suggests that this paradoxical tension between social and competitive activities of firms is a manageable resource-allocation decision. By disaggregating competitive activity into its different forms – intensity and complexity – we develop a model that explains how firms can alleviate the resource allocation tension to improve performance. High CSR firms can enhance short-term performance by reconfiguring its resource base and reducing competitive intensity – the frequency of competitive actions. Alternatively, they can increase long-term performance by transforming its resource base and increasing competitive complexity – the variety and novelty of competitive actions. Overall, our empirical findings suggest that the positive effect of CSR on firm performance is conditional on firms’ ability to adjust the intensity and complexity of their competitive activity. Our results are robust across competitive environments with different levels of competitive pressure.