bluuebunny/crossref_metadata_2025_split huggingface dataset:
A comparison of the electrochemical oxidative dissolution of pyrite and chalcopyrite in diluted nitric acid solution
Authors: Teimouri Samaneh , Potgieter Johannes Herman , Billing Caren 
Published: August 2023

Abstract
Understanding the oxidation of sulfidic minerals, especially those of pyrite and chalcopyrite, under acidic conditions has important outcomes, such as exposing any encapsulated gold not recovered by traditional cyanidation processes and providing insight into acid mine drainage. This investigation studied the electrochemical oxidation of pyrite and chalcopyrite in a nitric acid solution (0.5 M) using electrochemical techniques. Cyclic voltammetry (CV) was performed using electrodes of each mineral to detect the possible redox reactions and hence suggest products formed from each mineral. Electrochemical impedance spectroscopy (EIS) was also run on each mineral at specific potentials corresponding to regions for anodic reactions detected to gain further information about the reaction mechanism and possible products. The partial oxidation of pyrite at low anodic potentials (0.4 to 0.6 V) produces Fe1-xS2 and Fe(OH)3, with a sulfur-rich layer forming S0 which accumulates on the electrode’s surface, leading to a diffusion controlled dissolution process. As the potential increases above 0.7 V, there is sufficient driving force to fully oxidise pyrite and the species already formed on the electrode’s surface to soluble species by producing SO42–. This eradicates the diffusion barrier and cause extensive oxidation of pyrite at high potentials (0.9 V). A similar process occurred for chalcopyrite with preferential oxidation of iron at low potentials (0.3 to 0.5 V), forming mainly iron and copper deficient sulfides (like Cu1-xFe1-yS2-z, CuS2, CuS) and S0 which partially covers the chalcopyrite electrode’s surface, causing a diffusion barrier. Increasing the potential to beyond 0.7 V leads to these previously formed layers converting to soluble species. EIS provides evidence supporting the reactions and the formed products at the investigated potentials.
Two steps electrochemical reduction of graphene oxide modified Pb-carbon negative current collector: Synthesis and characterization
Authors: Jhabli Oussama , Jersifi[ Adnane El , Mouchtari El Mountassir El , Boutamart Mustapha , Rafqah Salah , Laamari My Rachid , Redouany Yassine , Nouneh Khalid , Galai Mouhsine , Hssissou Rachid , Briche Samir 
Published: August 2023

Abstract
The authors have requested that this preprint be removed from Research Square.
Transcriptomic Analysis Reveals Potential Genes and Essential Biological Processes Controlling the Robust Immune Response to Trivalent Inactivated Influenza Vaccine in Healthy Adults
Authors: Tawfik Ahmed 
Published: August 2023

Abstract
The seasonal influenza vaccine remains one of the vital recommended infection control measures for healthy individuals and the elderly with chronic illnesses. Nonetheless, a universal vaccine, which can be administered once and offer long-term protection against influenza, still has a few steps to go before it becomes available to the general public. We investigated the immunogenicity of a single dose of influenza vaccine in 123 seronegative participants and classified them into four distinct groups, determined by the promptness of their vaccine response, the longevity of their humoral immunity, and the likelihood of exhibiting cross-reactivity. Subsequently, we used transcriptional profiling and differential gene expression analysis to identify potential genes directly associated with the robust response to the vaccine. Our findings point out a list of expressed proteins that are related to B cell proliferation, unfolded protein response and cellular hemostasis, as well as a linkage of these expressions to the survival of long-lived plasma cells.
Integrative analysis of PAIP2B identify a novel biomarker for pancreatic ductal adenocarcinoma
Authors: Xiang Yaoxian 
Published: August 2023

Abstract
The aim of the study was to evaluate the potential diagnostic and prognostic value of PAIP2B in pancreatic cancer. We used the gene expression data and clinical information of PAAD from The Cancer Genome Atlas (TCGA) database and Gene Expression Omnibus (GEO) database to analyze the expression of PAIP2B in pancreatic cancer samples, and validated the expression of PAIP2B in tumor tissue. Using bioinformatics technology to explore the prognostic value of PAIP2B and its possible biological function. A significantly lower level of PAIP2B was observed in pancreatic cancer patients than in controls, and validated by Immunohistochemistry. PAIP2B declined the proliferation and invasion of cancer cells and was significantly high expression in early stage. Patients with lower levels of PAIP2B had a significantly shorter median survival time than those with higher levels. DNA demethylation played an important role in PAIP2B expression. In addition, PAIP2B expression was significantly associated with the tumor-infiltrating immune cells, especially T-cells CD8, T-cells CD4 memory resting, Macrophages M0 and Dendritic cells resting. Our study also evidenced that PAIP2B regulated miRNA function leading to disease progression in pancreatic cancer patients. Our study explored the potential value of PAIP2B as a biological link between prognosis and pancreatic cancer, and provided reference for the follow-up study on the role of PAIP2B in pancreatic cancer.
Metagenomic profiling for gut of indigenous poultry reared under free range system of management reveal prevalence of zoonotic pathogens in chicken, while predominating beneficial microbes in duck
Authors: Pal Aruna , Debnath Manti , Chatterjee Paresh 
Published: August 2023

Abstract
Zoonosis is an important phenomenon of disease transmission through livestock and poultry. In the current study, we explored gut metagenomics and identified a heavy percentage of pathogenic microbial loads in small intestine (duodenum) of chicken in comparison to duodenum of duck. Another important observation was that the percentage of pathogenic microbe decreases in large intestine (caecum), thereby reducing the chance of disease transmission through faeces. This may be the reason how indigenous duck and chicken were more hardy and resistant to common avian pathogens, that they have the ability to manage the reduction of the pathogenic microbes ingested through free range grazing with the help of beneficial microbes in caecum. Significant microbial load have been observed for Chlamydia abortus and Nocardia nova, with the every possibilities of transmission from chicken duodenum, so, handling of chicken need to be carried out with utmost care. We observed a remarkable finding that caecum of the gut reveal very less percentage of these pathogenic microbes, rather caecum is dominated by a beneficial microbe. 10 percent of the duck caecum is inhabited by Bacteroides spp (7 percent of Bacteroides sp OF04-15BH and 3 percent of Bacteriodes plebius), while it is almost negligible in chicken. This is the first report of this kind. This may be employed for the isolation and utilization as future probiotics from a ready source. Scavenging by indigenous poultry may serve as a useful tool for reducing pathogens prevailing in the environment.
Association between organizational support and turnover intention in nurses: a systematic review and meta-analysis
Authors: Galanis Petros , Moisoglou Ioannis , Katsiroumpa Aglaia , Vraka Irene , Siskou Olga , Konstantakopoulou Olympia , Kaitelidou Daphne 
Published: August 2023

Abstract
Aims
To synthesize and evaluate the association between organizational support and turnover intention in nurses.
Design:
We applied the Cochrane criteria and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines for our review and meta-analysis. The review protocol was registered with PROSPERO (CRD42023447109).
Data sources:
We searched PubMed, Medline, Scopus, Cinahl, Web of Science, and Cochrane from inception to July 21, 2023.
Review Methods:
Heterogeneity between results was high. Thus, we applied a random effect model to estimate pooled correlation coefficient between organizational support and turnover intention.
Results
A total of eight studies with 5,754 nurses were included. We found a moderate negative correlation between organizational support and turnover intention since the pooled correlation coefficient was − 0.32. A leave-one-out sensitivity analysis showed that our results were stable when each study was excluded. Egger’s test and funnel plot suggested the absence of publication bias in the eight studies. Subgroup analysis showed that the negative correlation between organizational support and turnover intention was stronger in studies in China and Australia than those in Europe.
Conclusion
Organizational support has a moderate negative correlation with turnover intention in nurses. However, our study had several limitations and we cannot generalize our results. Thus, further studies should be conducted to assess the independent effect of organizational support on turnover intention in a more valid way.
Impact:
Since organizational support is related with turnover intention, healthcare systems, organizations, and policy makers should develop and implement appropriate interventions to support nurses and improve working conditions. Nursing managers should draw attention to organizational support by developing effective clinical practice guidelines for nurses, so as to reduce turnover intention.
Practical fetotomies
Authors: Betts Michael 
Published: August 2023

Dystocias can take on many forms and knowledge of when to perform a fetotomy vs a C-section can be a major headache sav­er. While there are places around the country where C-sections have been abandoned exclusively for performing a fetotomy and vice versa, my practice area has always been open to both procedures. This passage from the 1972 book Fetotomy in Large Animals by C J Bierschwal and CHW deBois sums it nicely:
Fetotomy should not be considered a substitute for Cesarean section. Both have a place in veterinary practice, the choice of method in in­dividual cases being governed by the circumstances. After the finding of a dead fetus in the case of dystocia, the uppermost question should be “Which is the better solution with regard to the life of the dam?” The answer may not be the easier procedure or the one involving the least amount of effort.
The advent of sexed semen and beef on dairy technologies have seemed to greatly reduce the volume of dystocias due to large calves. That generally leaves malpositioned calves, emphyse­matous calves and the occasional fetal monster. Discussion of all presentations of dystocia are beyond the scope of this paper. The techniques presented here are a foundation that the veteri­nary obstetrician should be familiar with in order to apply to fetal presentations not discussed here.
Cohesión Social euro-latinoamericana. In memoriam del profesor Carlo Tassara
Authors: Agudelo Taborda Jairo 
Published: August 2023

Este número de la Revista Internacional de Cooperación y Desarrollo está dedicado a una gran alma de la cooperación italiana en Colombia: Carlo Tassara. Junto a Carlo es justo recordar también a su y nuestro amigo y colega Paolo Giorgi, co-fundador y primer director de la Escuela Latinoamericana de Cooperación y Desarrollo (Elacid) en cuyo marco nació esta revista. Paolo nos acompañó por tres años –del 2003 al 2006– junto a su tierna y noble esposa Manuelita Focaia en Cartagena. Nos unimos a ella en memoria de Paolo.
Del mismo modo, Carlo nos acompañó desde el 2003 hasta el 2021 como docente del posgrado de Cooperación internacional al desarrollo, en el nacimiento y la consolidación de esta revista. Infatigable colaborador junto a su esposa Yolanda Zuluaga. Paolo y Carlo tuvieron el doble don de la práctica de la cooperación internacional con los proyectos en los territorios a través de sus respectivas ONG (Coopi y Cisp) y en la reflexión académica desde la Universidad San Buenaventura, la Universidad La Sapienza, la Universidad de Pavía y la Universidad del Norte.
Por su más reciente fallecimiento y por su acompañamiento en los trabajos de la revista, este número recoge artículos que temáticamente interesaron a Carlo Tassara. En modo especial, el apoyo de la cooperación europea a la cohesión social y el desarrollo sostenible en Latinoamérica en general y en Colombia particularmente.
Antihyperglycemic activity of colostrum peptides
Authors: Tikhonov Sergei , Tikhonova Natalia , Gette Irina , Sokolova Ksenia , Danilova Irina 
Published: August 2023

Peptides of plant and animal origin have good anti-diabetic prospects. The research objective was to use bovine colostrum peptides to reduce hyperglycemia in diabetic rats.
Bovine colostrum peptides were obtained by trypsin hydrolysis of colostrum proteins with preliminary extraction of triglycerides. The study involved four groups of Wistar rats with seven animals per group. Group 1 served as control; group 2 received 300 mg/kg of trypsin hydrolysate of bovine colostrum as part of their daily diet for 30 days. Groups 3 and 4 had diabetes mellitus caused by intraperitoneal injections of 110 mg/kg of nicotinamide and 65 mg/kg of streptozotocin. Group 4 also received 300 mg/kg trypsin hydrolysate of bovine colostrum intragastrically five times a week for 30 days.
Three peptides were isolated from the trypsin hydrolysate of bovine colostrum and tested for the sequence of amino acids and molecular weight. Their identification involved the Protein NCBI database, followed by 2D and 3D modeling, which revealed their chemical profile, pharmacological properties, and antioxidant activity. The diabetic rats treated with colostrum peptides had lower glucose, glycated hemoglobin, malondialdehyde, and catalase activity but a higher content of glutathione in the blood. Their leukocytes and erythrocytes also demonstrated less deviation from the standard. The antioxidant effect of colostrum protein hydrolysate depended on a peptide with the amino acid sequence of SQKKKNCPNGTRIRVPGPGP and a mass of 8.4 kDa.
Colostrum peptides reduced hyperglycemia and oxidative stress in diabetic rats. The research revealed good prospects for isolating individual colostrum peptides to be tested for antidiabetic properties.
A thermophilic L-lactic acid producer of high optical purity: isolation and identification
Authors: Romanova Maria , Dolbunova Anastasiia , Epishkina Yulia , Evdokimova Svetlana , Kozlovskiy Mikhail , Kuznetsov Alexander , Khromova Natalya , Beloded Andrey 
Published: August 2023

Biodegradable polymers, specifically polylactide, are an important part of food packaging and medical devices. Microbiological synthesis uses cheap renewable raw materials and industrial waste to produce a high yield of lactic acid, the monomer of polylactide. This method needs new effective lactic acid producing strains, e.g., thermophilic bacteria.
The research involved thermophilic bacterial strains isolated from soil and compost samples. Their ability to produce organic acids and extracellular enzymes was tested using the method of high-performance liquid chromatography (HPLC) and microbiological tests respectively. The real-time polymerase chain reaction method (PCR) detected L-lactate dehydrogenase structural genes of L-lactate dehydrogenase of Bacillaceae. Strain T7.1 was fermented using glucose and yeast extract as carbon and nitrogen sources, respectively. The optical purity of lactic acid was evaluated using quantitative gas chromatography on a chiral column to separate lactate isomers. The molecular genetic analysis of the 16S rRNA gene sequence was applied to identify strain T7.1.
The chromatographic analysis proved that 10 out of 13 isolated thermophilic strains were effective lactic acid producers. They demonstrated proteolytic, amylolytic, or cellulase activities. During the fermentation, strain T7.1 produced 81 g/L of lactic acid with a peak productivity at 1.58 g/(L·h). The optical purity of the product exceeded 99.9% L-lactate. The genetic analysis identified strain T7.1 as Weizmannia coagulans (Bacillus coagulans).
The research revealed a promising thermophilic producer of optically pure L-lactic acid. Further research is needed to optimize the cultivation conditions, design an effective and cheap nutrient medium, and develop engineering and technological solutions to increase the yield.
Hematological parameters of free-ranging moose Alces alces (Linnaeus 1758) (Ruminantia, Cervidae)
Authors: Perevozchikova Maria , Domsky Igor , Sergeyev Alexey 
Published: August 2023

Comparative studies that feature the physiology of wild and domestic animals replenish the fundamental knowledge in the field of biology and adaptive potential, thus increasing the efficiency of domestication. Semi-free conditions and artificial environment create prerequisites for epidemics and stress. However, early detection can prevent critical situations. This research provides new data on moose biology and physiology by establishing age and sex hematological parameters.
The study featured moose blood samples (n = 55) obtained in the Kirov Region in the northeast of European Russia. Hematological tests relied on a veterinary version of a MicroCC-20 Plus automatic analyzer (High Technology).
This research was the first of its kind to introduce a comparative hematological analysis of local European moose according to age and sex. Adults and calves demonstrated significant differences (p < 0.05) in red blood cells, hemoglobin, hematocrit, mean corpuscular volume, mean concentration hemoglobin, mean corpuscular hemoglobin concentration, platelet distribution width, red blood cell distribution width, platelet crit, platelets, leukocytes, and eosinophils. Females and males also had significant differences (p < 0.05) in red blood cells, hemoglobin, mean corpuscular volume, red blood cell distribution width, platelet distribution width, platelets, and eosinophil content. The single- and multivariate analysis made it possible to establish the effect of physiological factors on the blood parameters in moose.
The hematological values were in line with the most indicators reported in other publications on wild artiodactyls. The existing differences in blood parameters depended on the species, habitat, food supply, age, and sex.
Antithrombotic Treatment in Coronary Artery Disease
Authors: Siasos Gerasimos , Tsigkou Vasiliki , Bletsa Evanthia , Stampouloglou Panagiota K. , Oikonomou Evangelos , Kalogeras Konstantinos , Katsarou Ourania , Pesiridis Theodoros , Vavuranakis Manolis , Tousoulis Dimitris 
Published: August 2023

Abstract:
Coronary artery disease exhibits growing mortality and morbidity worldwide despite the advances in
pharmacotherapy and coronary intervention. Coronary artery disease is classified in the acute coronary syndromes
and chronic coronary syndromes according to the most recent guidelines of the European Society of
Cardiology. Antithrombotic treatment is the cornerstone of therapy in coronary artery disease due to the
involvement of atherothrombosis in the pathophysiology of the disease. Administration of antiplatelet agents,
anticoagulants and fibrinolytics reduce ischemic risk, which is amplified early post-acute coronary syndromes
or post percutaneous coronary intervention; though, antithrombotic treatment increases the risk for bleeding.
The balance between ischemic and bleeding risk is difficult to achieve and is affected by patient characteristics,
procedural parameters, concomitant medications and pharmacologic characteristics of the antithrombotic
agents. Several pharmacological strategies have been evaluated in patients with coronary artery disease, such as
the effectiveness and safety of antithrombotic agents, optimal dual antiplatelet treatment schemes and duration,
aspirin de-escalation strategies of dual antiplatelet regimens, dual inhibition pathway strategies as well as triple
antithrombotic therapy. Future studies are needed in order to investigate the gaps in our knowledge, including
special populations.
Two-cylinder Synchronous Electro-hydraulic Servo System and its Control
Technology Development
Authors: Li Jianying , Ji Hui , Kong Lingbing , Jiang Liqun 
Published: August 2023

Background:
Electro-hydraulic servo control system synchronous control in industrial application is very extensive because the application of electro-hydraulic servo control system is mostly in a poor working environment, there are a variety of complex external factors.

Objective:
Improve the comprehensive performance indicators such as accuracy, speed, and stability of synchronous control of hydraulic cylinders

Methods:
In the process of synchronous movement, the typical hardware structure and control methods and algorithm strategies of the double hydraulic cylinder are analyzed in detail, and the basic principle of common hydraulic double cylinder synchronous control is summarized.

Results:
Through the comprehensive analysis of papers and patent documents related to the synchronous control of hydraulic twin cylinders, these papers and patented technologies study the control algorithm, and apply the new technology to the synchronous control of electro-hydraulic servo hydraulic cylinders to improve its comprehensive performance indicators such as work accuracy, speed and stability.

Conclusion:
Referring to the development trajectory of control algorithms in this regard, combined with new control theory and new technology, many achievements can be applied and researched in hydraulic cylinder synchronous control, and better develop the synchronous control system when double hydraulic cylinders and more hydraulic cylinders work together. By collating and analyzing the relevant research results, the two-cylinder synchronous control technology is comprehensively evaluated and prospected, which provides a valuable reference for the research and application in this field.
Thin Ga-doped ZnO Film with Enhanced Dual Visible Lines Emission
Authors: Alamdari Sanaz , Mansourian Mohammad , Ghamsari Morteza Sasani 
Published: August 2023

Introduction:
In this study, a simple and facile route was employed to prepare a highly
transparent and luminescent ultra-thin gallium doped ZnO film (GZO).

Methods:
The thin GZO film has been deposited using the simultaneously ultrasonic vibration and
sol-gel spin-spray coating technique. The structural and optical properties of pure and doped thin films
were investigated by various methods, such as X-ray diffraction (XRD), X-ray photoemission spectroscopy
(XPS), scanning electron microscopy (SEM), UV-Vis, and PL spectroscopy.

Results:
XRD results indicated that both pure and doped ZnO films had a hexagonal wurtzite structure
with (101) preferred orientation. XPS and EDX studies confirmed the incorporation and presence of
Ga ions into the ZnO lattice structure. The doped sample showed nearly 90% of transparency, and a
strong blue-green emission in the visible region.

Conclusion:
The obtained results proved that the prepared thin film could be a novel candidate for optoelectronic
applications.