bluuebunny/crossref_metadata_2025 huggingface dataset:
Increased plasma lipocalin-2 levels correlate with disease severity and may be a marker of acute inflammatory response in patients with psoriasis
Authors: Nguyen Chuyen Thi Hong , Nguyen Oanh Phan Tram
Published: July 2022

More than a skin disease, psoriasis is also considered a systemic disorder. Lipocalin-2, an adipokine, may be a link between psoriasis and systemic inflammation. We conducted this study to measure the plasma level of lipocalin-2 and investigate its relationship with the clinical manifestations in patients with psoriasis. We assessed 62 patients with psoriasis and 31 healthy controls. Their demographic information and clinical characteristics were determined by physical examination and review of the recorded medical history. Plasma lipocalin-2 levels were measured using an enzyme-linked immunosorbent assay. Plasma lipocalin-2 concentration was significantly higher in patients with psoriasis than in the control group (P<0.001). Patients with acute psoriatic subgroups, including psoriatic erythroderma and pustular psoriasis, had significantly higher plasma lipocalin-2 levels than those with the chronic plaque type. In addition, plasma lipocalin-2 concentration positively correlates with the disease severity index, including the psoriasis area severity index, body surface area, high-sensitivity C-reactive protein, nail psoriasis severity index, and pustular severity index. In patients with psoriasis, increased plasma lipocalin-2 levels correlated with severity and indicated an active disease state. These findings suggest that lipocalin-2 may play an important role in determining the pathogenesis of acute psoriasis and may serve as a valuable clinical biomarker of this disease.
The anxiety and depression disorder in adults with atopic dermatitis: experience of a dermatology hospital
Authors: Ngo Minh Vinh , Vu Thi Thuy Trang , Luong Thuy , Huynh Thi Xuan Tam , Le Thi Thuy Hang , Pham Van Bac
Published: July 2022

Objectives: To identify the proportion of atopic dermatitis adult patients having anxiety and depression disorder and measure the relationship between anxiety and depression disorder and characteristics of atopic dermatitis. Materials and Methods: a cross-sectional study with convenience sampling was conducted. Diagnostic criteria for atopic dermatitis were based on modified Hanifin and Raijka criteria and the severity of anxiety - depression disorder was evaluated using HADS (Hospital Anxiety And Depression Scale). Results: 208 patients were enrolled in this study. The percentage of patients with anxiety and subthreshold anxiety were 11.1% and 34.1%, respectively. 5.3% of patients had depression and 39.4% of patients suffered from subthreshold depression. The proportion of patients with mixed anxiety-depressive disorder was 1.44%. Patients with severe atopic dermatitis were more likely to endure anxiety but not depression. Allergies or autoimmune diseases and SCORAD C were two independent risk factors of depression whereas edema and excoriation were two independent risk factors related to anxiety in atopic dermatitis patients. Conclusion: These findings suggest that atopic dermatitis is associated with anxiety and depression. Allergies, autoimmune diseases, pruritus, and insomnia had a correlation with anxiety and depression disorder.
Lobetyolin suppressed lung cancer in a mouse model by inhibiting epithelial-mesenchymal transition
Authors: Liu Lu , Liu Zhankui , Yang Liu , Wu Xue , Zhu Jiaying , Liu Lili , Liu Yang
Published: July 2022

Traditional Chinese medicines are gaining more attention as promising adjuvant agents for conventional chemotherapy. Recent studies have shown that lobetyolin (LBT) is one of the main bioactive compounds of traditional Chinese medicines and it exhibits anticancer activity in several types of cancer. Therefore, this study aimed to investigate the mechanism by which LBT inhibits lung cancer. A549 human lung cancer cells were treated with LBT. In addition, A549 cells were injected into Balc/b nude mice to establish model of lung cancer. The mice were treated with cisplatin (DDP) or LBT alone or in combination, and tumor growth was monitored. Protein levels of E-cadherin, vimentin and matrix metalloproteinase 9 (MMP9) were detected. We found that the combination of LBT and DDP showed stronger effect to inhibit the proliferation of A549 cells compared to LBT or DDP treatment alone. Wound healing assay showed that the ratio of wound healing was significantly lower in LBT group and DDP group and was the lowest in LBT+DDP group. Transwell invasion assay showed that the invasion ability of A549 cells was the weakest in LBT+DDP group. Protein levels of E-cadherin were the highest while those of vimentin and MMP9 were the lowest in A549 cells treated with LBT+DDP. Nude mouse xenograft tumor model showed that the combination of LBT with DDP had the highest efficacy to inhibit the growth of lung cancer, and tumor tissues of mice treated with LBT+DDP had the lowest expression of vimentin and MMP9 and the highest expression of E-cadherin. In conclusion, LBT significantly enhances the efficacy of chemotherapy on lung cancer, and the mechanism may be related to the inhibition of epithelial-mesenchymal transition.
Early assessment of aspiration risk in acute stroke by fiberoptic endoscopy in critically ill patients
Authors: Elsyaad Mohamed Saad Abdelaziz , Fayed Akram Muhammad , Megahed Mohamed Mostafa Abdel Salam , Hamouda Nesrine Hazem , Elmenshawy Ahmed Moustafa
Published: July 2022

Background: Fiberoptic endoscopic evaluation of swallowing (FEES) has been recommended to assess aspiration in stroke. This study aimed to determine the diagnostic and prognostic roles of FEES in the early assessment of aspiration, intensive care unit (ICU) stay and mortality in acute stroke patients.Methods: Fifty-two patients with acute stroke admitted to the Alexandria Main University Hospital were included. Complete examinations and assessment of aspiration using the 8-point penetration-aspiration scale (PAS) with FEES protocol were performed.Results: The patients were classified into three groups: normal with no or low risk of aspiration (n=15, 27.3%; PAS level 1), low to moderate risk (n=8, 14.5%; PAS level 2–4), and high risk (n=32, 58.2%; PAS ≥5). There was high incidence of aspiration pneumonia, prolonged ICU stay, and mortality in both moderate- and high-risk groups (P=0.001, P<0.001, and P<0.001, respectively). The PAS score predicted aspiration pneumonia (hospital-acquired pneumonia) with sensitivity and specificity of 80.0% and 76.0%, respectively (negative predictive value [NPV], 76.0; positive predictive value [PPV], 80.0; 95% confidence interval [CI], 0.706–0.940) and mortality with sensitivity and specificity of 88.46% and 68.97% (NPV, 87.0; PPV, 71.9; 95% CI, 0.749–0.951). The PAS score could predict the length of ICU stay with sensitivity and specificity of 70.21% and 87.50, respectively (NPV, 33.3; PPV, 97.1; 95% CI, 0.605–0.906).Conclusions: The standard FEES protocol using PAS score is a useful tool to assess aspiration in acute stroke patients and could be used to predict length of ICU stay and mortality.
Maladie de Takayasu chez un homme diabetique hypertendu de 52 ans : une observation inhabituelle
Authors: Ngolo-Letomo Ngolo Letomo Kivié M. , Ngamami Solange Flore Mongo , Kouala-Landa Christian Michel , Bakekolo Paterne R. , Ellens M.B.F.
Published: July 2022

La maladie de Takayasu est une maladie inflammatoire chronique vasculaire notamment artérielle touchant les gros vaisseaux. Son diagnostic est  souvent tardif au stade de sténose, la phase inflammatoire passe inaperçue. Nous rapportons un cas de maladie de Takayasu chez un homme de 52 ans diabétique et hypertendu ayant consulté pour une maladie abarticulaire de l’épaule gauche. L’examen clinique a noté une limitation  unidirectionnelle de l’épaule gauche avec un pseudo signe de la main de l’accoucheur lors du gonflage du brassard au bras gauche. L’angioscanner  de l’aorte thoracique occupe une place importante dans le diagnostic.

 

English title: Takayasu disease in a 52-year-old hypertensive diabetic man: uncommon case report

Takayasu's disease is a chronic vascular, particularly arterial inflammatory disease, affecting the large vessels. Its diagnosis is often late at the stage  of stenosis; the inflammatory phase goes unnoticed. We report a case of Takayasu disease in a 52-year-old diabetic and hypertensive man who  consulted about a left shoulder joint disease. Clinical examination noted unidirectional limitation of the left shoulder with a pseudo midwife's hand  sign on cuff inflation in the left arm. Thoracic aortic angioscan is an important part of the diagnosis.
Dysfonction érectile : aspects épidémiologiques, diagnostiques et thérapeutiques au CHU Aristide Le Dantec, Sénégal
Authors: Ndiath Abdoulaye , Sarr Alioune , Diaw El Hadji Malick , Sow Ousmane , Sine Babacar , Saidy Reymond , Ndiaye Modou , Dabo Ousmane , Diop Djeynaba Aboubakry , Ndour Ndiaga Seck , Ondo Cyrille Ze , Sow Yaya , Diao Babacar , Ndoye Alain Khassim
Published: July 2022

Contexte et objectif: La dysfonction érectile (DE) mais le devenir sous traitement est peu connu. Cette étude avait pour objectif de décrire les aspects épidémiologiques, diagnostiques et thérapeutiques des patients souffrant de DE au service d’urologie CHU Le Dantec.

Méthodes: Etude documentaire descriptive monocentrique colligeant, les dossiers des patients âgés de plus de 18 ans et ayant une dysfonction  érectile entre le 1er janvier 2018 et le 31 décembre 2019. Les paramètres d’interet englobaient : les caractéristiques sociodémographiques, les  antécédents médicaux et /ou chirurgicaux, la gravité de la dysfonction érectile (DE) et l’évolution de la dysfonction érectile sous traitement.

Résultats: Cent huit patients ont été recensés sur une période de 2 ans. L’âge moyen était de 45,8 ±14,3 ans. Les mariés étaient majoritaires (76,8  %). Plus de la moitié des patients (58,3 %) avaient un facteur de risque cardiovasculaire. La dysfonction érectile sévère était objectivée chez 64  patients (59,2 %). Près de la moitié des patients (47 %) avaient une fonction érectile normale après le traitement.

Conclusion: La dysfonction érectile  est préponderante parmi les patients ayant un facteur de risque cardiovasculaire. Sous l’attitude thérapeutique appliquée, l’évolution de DE à été favorable chez au moins la moitié des patients.

 

English title: Erectile dysfunction: epidemiological, diagnostic and therapeutic aspects at Aristide Le Dantec University Hospital, Senegal

 

Context and objective: Erectile dysfunction (ED) is a common disease, but little is known about the outcome after the treatment. The aim of this study was to describe the epidemiological, diagnostic and therapeutic aspects of ED patients.

Methods: Retrospective descriptive monocentric study collecting records of patients aged over 18 years with ED, between January 1, 2018 and  December 31, 2019, at the Urology Department of CHU Le Dantec, Senegal. The parameters studied were as follows: socio-demographic  characteristics, medical and/or surgical history, severity of ED and evolution of ED under treatment.

Results: One hundred eight patients were enrolled over a 2-year period. Their mean age was 45.8 ± 14.3 years. Married patients were preponderant  (76.8 %). More than half of the patients (58.3 %) had a cardiovascular risk factor. Severe ED was diagnosed in 64 patients (59.2 %).  Almost half of the patients (47 %) had normal erectile function after treatment.

Conclusion: ED was common in patients with cardiovascular risk  factor. The outcome was favorable in roughly half patients after the treatment.
Significance of Sample Repeatability Index in the Mining Industry
Authors: Fiadonu E. B. , Ackah E. , Ofori-Amanfo P.
Published: July 2022

The objective of this research is to establish the importance of Sample Repeatability Index (SRI) as a measure to ensure error minimisation in exploration drilling protocols, during sample preparation of the prospect areas. Almost all the stages entailed in the exploration stages involve sampling. Samples collected and prepared within the field are well checked for a good Quality Assurance and Quality Control (QA/QC) methods. However, samples sent out for testing in the laboratory outside the field are not under the control of the exploration team, hence a measure must be taken to assess the efficiency of the laboratory and accuracy of the laboratory results. Sample Repeatability Index is one of the tools that can be used to ensure the degree of confidence in the laboratory results. To achieve this, QA/QC procedures were employed to monitor precision, accuracy and potential sample contamination in order to ensure confidence in the sampling system. A total of twelve thousand and eighty-one samples taken from eight different deposits, considered within a 4-year period were used in this study. Field duplicate pairs were used to check sample repeatability, Relative Difference and Half Absolute Relative Difference (HARD) plot were used to calculate Sample Repeatability Indexes for the deposits. Results of the study showed that Sample Repeatability Index for all the deposits with exception of deposit 2 fell below the Customer Specification Threshold (CST). Deposit 2 produced somewhat better of 77% at 20% precision as compared to the other deposits. Deposit 3 recorded poorly of 60% at 20% precision. It is advisable to have sampling protocol designed to suit different geological domain on each individual deposit.
Applicability and Usefulness of the HFACS-GMI
Authors: Joe-Asare T. , Stemn E. , Amegbey N.
Published: July 2022

To present information such as causes of accidents and their consequences on the Ghanaian mining industry in the safety literature, classification schemes for incident analysis within the safety literature were studied. Human Factor Analysis and Classification Scheme (HFACS) emerged suitable for incident analysis. Base on its suitability for incident analysis within the Ghanaian Mining Industry (GMI), a derivative of the HFACS, namely HFACS-GMI, was proposed. This research seeks to study the usefulness and the applicability of the HFACS-GMI. Collectively, 56 incident investigation reports were obtained from an open cast gold mine in Ghana and analysed using the HFACS-GMI. Two cases, an equipment damage incident and an injury incident, were used to demonstrate the coding processing in identifying the causal factors. The analysis shows that most mishaps are associated with adverse workplace/operator conditions (151 references), with the physical environment (72.2%) being cited as the major causal code under the tier. Management decision showed a major contribution (74.1%) to mishap under the causal codes. Most cases were attributed to mistake error (57.4%) followed by the contravention (51.1%) of set rules and procedures with the operator's act tiers. Inadequate work standards (27.8%) and failure to ensure competency (24.1%) under the operational process and leadership flaw causal codes, respectively, were identified as the most cited nanocode. Management decision is critical in a mishap and should be given much attention in developing accident prevention strategies. The study has demonstrated that HFACS-GMI is very useful and applicable for incident analysis within the mining industry and is recommended to study causal factors across the mines.
Assessing the Toxicity of Colocassia Esculenta (Cocoyam Plant) Grown on Mercury Contaminated Soil
Authors: Asare D. A. , Anderson E. , Amosah M. E. , Ntiri-Bekoh R. , Ofori-Sarpong G.
Published: July 2022

The unsafe disposal of heavy metals is a serious environmental problem all over the world as it has devastating effects on plant biodiversity as well as animal and human health. Contamination can be caused by effluents from industries and exposure of rocks containing metalloid or heavy metals such as arsenic (As), lead (Pb), and mercury (Hg). Several techniques have been used to clean up soil and water bodies contaminated with these heavy metals or metalloid. Phytoremediation is one of the emerging methods which has proven to be ecofriendly and efficient. Plants such as Colocasia esculenta have been reported to be a hyperaccumulator. However, there are concerns regarding the excessive metal uptake by the plant when grown on mercury-contaminated sites, since high Hg levels can cause toxicity in human beings. This study was thus carried out to ascertain the toxicity of C. esculenta plants cultivated in 10 ppm Hg-induced soil sample for four weeks. The concentration of mercury in soil, water and cocoyam samples decreased after 28 days of planting. Accumulation of Hg in plant tissues was measured, and Translocation Factor (TF) was calculated. TF was in the order of Root-Stem (0.60) > Root-Leaves (0.56) > Soil-Root (0.23).  The results indicated that Cocoyam plants have an excellent ability to remove Hg from contaminated soils and further accumulate it in their tissues. With the threshold level of Hg at 0.0016 mg/kg body weight (FAO/WHO), the results obtained suggest that cocoyam plants grown in such contaminated areas may pose health threats to humans.
On Sensor-Based Ore Sorting
Authors: Normanyo E. , Ofosu R. A. , Acquah D. S.
Published: July 2022

The high cost of mineral processing in mining industries keeps rising. Sensor-based ore sorting is key in helping the mining industries to sort out ore to help reduce the processing and production costs. With the implementation of sensor-based ore sorting at the primary stage, it assures of separating larger volumes of the barren gangue from the conveyor-transported ore before excessive handling and mixing occurs. Hence, this paper investigated and evaluated the deployment of the colour camera and the dual energy X-Ray sensors. The successful operation at 2.8 m/s and 3.2 m/s of conveyor speed, and relatively extreme positions of the air jet-based separation mechanism for the sorting proved robustness in separation of barren gangue from the ore feed.
Efficacy of Agricultural Extensions and Environmental Conservation Awareness on the Sustainability of Urban Agricultural Practice: Case of Daraja Mbili and Lemala Wards in Arusha City, Tanzania
Authors: Thomas P. S. , Kombe W. J. , Lupala A.
Published: July 2022

Urban agricultural activities can have a minimum or a substantial contribution to the livelihoods of people. They can either conserve or pollute the environment and degrade the land. The information about ensuring agricultural productivity with less effect on the environment is dynamic and the causes of dynamisms are not clear. The study was conducted to examine the cause of dynamisms in relation to changing institutional frameworks and political regimes. The study used qualitative research design and a case study strategy and 60 respondents were interviewed. We did content analysis to analyse qualitative data. The findings revealed that agricultural extension services and trainings, as well as environmental conservation awareness about good agricultural practice were provided to farmers and non-farmers, although the success was not promising. The uncoordinated agricultural activities were rhetorically managed and sometimes managed in uncoordinated ways. In tune with provision of agricultural extension services and awareness of conserving the environment to farmers, the mere conservation of the environment was not successful, unless it had a possibility of increasing agricultural productivity and helping farmers to get their livelihood needs.
Progress on Sustainable Development Goal for Sanitation and Hygiene in Sub-Saharan Africa
Authors: Owho O. , Ndakara O. E.
Published: July 2022

The Sustainable Development Goal (SDG) target 6.2 focuses on ensuring that everyone has access to adequate sanitation and hygiene services by 2030. This study harvested data from the 2021 Joint Monitoring Programme (JMP) report of the SDG target 6.2 to assess the progress on sanitation and hygiene in sub-Saharan Africa (SSA) countries. The sanitation and hygiene data for countries in SSA were extracted and analyzed to determine the progress towards the attainment of the SDG target 6.2. The analyses revealed that the rate of annual progress for at least basic sanitation (0.50%) and basic hygiene services (0.22%) in SSA from 2015 to 2020 was very low. However, the t-test results showed that there were significant differences in the proportion of the population using at least basic sanitation (t47 = -7.910, p = .000, α = 0.05), open defecation (t47 = 6.517, p = .000, α = 0.05) and basic hygiene (t36 = -3.830, p = .000, α = 0.05) services from 2015 to 2020. In spite of the t-test results, the projected coverage for basic sanitation and basic hygiene services by 2030 were 38% and 28.2%, respectively, which showed that SSA might miss the SDG target 6.2, if urgent measures are not taken to address the situation. It is therefore recommended that a detailed audit of the sector should be carried out in each country to identify areas that need urgent interventions and scale up of activities.
Description and Composition of Tree Species in a Tertiary Institution Agricultural Faculty Arboretum, Ibadan, South-West Nigeria
Authors: Haastrup N. O. , Bolaji O. W. , Narudeen T. A. , Babalola Y. O. , Jeminiwa O. R. , Oladipupo-Alade E. O. , Oyedele M. D. , Lawal M. O. , Bolaji O. O.
Published: July 2022

The Arboretum of the Agricultural Faculty of a tertiary institution in Ibadan is known for its rich diversity of trees. Therefore, the study investigates the tree growth variables in the arboretum such as diameter at breast height (dbh), diameter at the base, middle and top of the bole, total height, merchantable height and crown diameter. The basal area and volume were then calculated per species and per family. Several models were fitted for the height – diameter relationship and crown diameter – diameter relationship and crown diameter – dbh relationship. Positive linear relationships were observed among the growth variables. The fitted models showed that cubic models exhibit a more reliable function than quadratic and linear models for crown diameter – dbh predictions as it has R2 above 0.75. Endangered species were observed too and this was indicated through the diversity index obtained. The highest basal area encounter belongs to myrtaceae family (9.61m2) while the lowest belongs to pinaceae family (0.24m2). The total basal area obtained at (31.72m2) from the faculty trees indicates that they are exhibiting better growth and yield.
Alanine Aminotransferase and Aspertate Aminotransaminase Activities in Wistar Rats Fed with Musa paradisiaca (Plantain) Stem Pulp in Aluminium Chloride Induced Hepatic Oxidative Stress
Authors: Arhoghro E. M. , Kpomah E. D.
Published: July 2022

In this study, the effect of Musa paradisiaca (plantain) stem pulp on aluminium chloride (AlCl3) induced hepatotoxicity was studied. Fifteen (15) healthy female wistar rats after acclimatization for two weeks were randomly distributed to three (3) groups, with five (5) rats in each group. Group 1 served as control and received as control pelletized growers feed and distilled water throughout the experiment (14 days). Group 2 received 100mg/kg/body weight (b.w.) of aluminium chloride and was fed with pelletized growers feed and distilled water for 14 days and group 3 received 100mg/kgb.w of aluminium chloride and 2mL/kg of the juice gotten from M. paradisiaca and were also allowed free access to feed and water ad libitum for 14 days. Blood samples were collected via cardiac puncture and analyzed for AST, ALT, MDA and SOD. Results revealed that there was a significant increase in AST and ALT levels respectively from 67.83±1.39 to 173.40±0.81 and 43.73±1.00 to 128.24±0.68 after treatment with AlCl3 compared to control while administration of M. paradisiaca extract ameliorated the adverse effects of AlCl3 when compared to AlCl3 treated groups from 173.40±0.81 to 72.40±1.71 and 128.24±0.68 to 45.83±1.22 respectively. There was a significant decrease (P<0.05) in SOD level from 6.04± 0.49 to 2.56±0.86 of AlCl3 compared to control and a significant increase (P<0.05) from 2.56±0.86 to 6.00±1. 56 in SOD level was observed in M. paradisiaca treated groups when compared to AlCl3 treated group. It was also observed that there was a significant (P<0.05) from 401.09±0.10 to 1207.98±1.39 in MDA level after treatment with AlCl3 compared to control while there was a significant decrease (P<0.05) from 1207.98±1.39 to 388.83±31.15 in MDA level of M. paradisiaca treated groups when compared to the AlCl3 treated groups. It was observed that M. paradisiaca showed a mitigating effect on aluminium chloride-induced hepatotoxicity and thus justifying the hepatoprotective property of M. paradisiaca.
Rhabdomyolysis after BNT162b2 mRNA Covid-19 vaccine in an adolescent male
Authors: Sutcu Murat , Gul Doruk , Atik Fatih , Kara Manolya
Published: July 2022

Pfizer-BioNTech COVID-19 (BNT162b2) conferred a high level of protection against Covid-19 with a proven short-term safety profile. Although cases of vaccine-associated myopericarditis have been reported, the existence of rhabdomyolysis without myocarditis has not yet been published. A 16-year-old, healthy male patient, who did not use any herbal or illegal drugs before, was admitted with muscle pain that developed after the second dose of BNT162b2 vaccine. Cardiac examination and heart enzymes were normal and the patient had significantly higher creatinine kinase levels. The patient, whose enzymes returned to normal with only force hydration therapy, recovered without complications. Reporting the side effects of the vaccine, which has a short history of application to large populations, is of vital importance in the conduct of vaccine development studies and in identifying the risky group in terms of side effects.
Catalytic pyrolysis of Abandoned Fishing Nets using Activated Carbon Derived from Wasted Clamshell with in-situ and ex-situ Catalyst Configuration
Authors: Kim Soosan , Lee Seonho , Lee Hee Sue , Yang Wooyoung , Lee Jechan
Published: July 2022

Fishing net is considered as one of the biggest problem in the world owing to the release of micro-plastics from abandoned fishing nets, which contributes to marine pollution. Although disposal and recycling strategies are considered as effective methods for overcoming these problems, the pyrolysis of abandoned waste has emerged as a strategy to recover massive quantities of waste materials. In this study, to develop an effective method to valorize abandoned fishing net, the effect of the use of a CaCO3 catalyst after the loading method (i.e., in-situ and ex-situ) on pyrolytic products of abandoned fishing net was investigated using micro-gas chromatography and gas chromatography/mass spectrometry. Compared to non-catalytic pyrolysis, catalytic pyrolysis increased the yield of non-condensable and condensable gas. Particularly, the ex-situ method significantly increased the yield of non-condensable gas to up to 37.2 wt.% at 900. Compared to the ex-situ method, in-situ loading method increased the yield of condensable products to up to 82 wt.%. The understanding of the difference between different catalyst loading configurations will provide useful insight on thermocatalytic waste conversion processes.
Adsorption-enhanced sonophotocatalytic removal of tetracycline from water using ceria-zirconia (x)CeO2-(1-x)ZrO2 binary oxide nanocatalyst
Authors: Kim Gyuri , Yea Yeonji , Park Sejoon , Byeon Seongjun , Seo Seungbeom , Cho Junhyeong , Park Chang Min
Published: July 2022

Objectives : Tetracycline (TC) antibiotics have a risk of causing gastrointestinal and hepatic disorders and, in rare cases, photosensitivity and deposition in bone tissue.Methods : Therefore, it is urgent to develop a technology that can completely remove TC remaining in the water. In this study, a new type of sonophotocatalytic decomposition system that can efficiently decompose TC, a water-based recalcitrant trace pollutant, was proposed.Results and Discussion : As a sonophotocatalyst, xCeO2-(1-x)ZrO2 (x = 0, 0.25, 0.5, 0.75, and 1) binary nanocomposites were synthesized by hydrothermal methods, followed by X-ray diffraction, Fourier-transform infrared spectroscopy, field emission scanning electron microscope, UV-Vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller surface area techniques. Interestingly, the 0.75CeO2-0.25ZrO2 (CZ0.75) nanocomposite had low adsorption and removal ability of TC in the absence of light, but due to the synergistic effect of the material and the advanced treatment system, the remaining TC was removed by 89.2% under sonophoto irradiation for 60 min. For CZ0.75, the effect of operating factors such as initial pH of solution, catalyst dosage, reaction time, initial TC concentration, and ultrasonic intensity was studied and the mechanism was analyzed.Conclusion : In addition, through LC-MS analysis, intermediate products obtained in the TC degradation process using the CZ0.75 catalyst and the TC degradation pathway were identified.
Применение сальдирования вне процедуры банкротства: теоретический и практический подходы
Authors: Джиоев В.Г.
Published: July 2022

Статья посвящена возможностям сальдирования требований в рамках договора подряда вне процедуры банкротства. На примере судебного иска, прошедшего все стадии искового производства, рассмотрена допустимость сальдирования и сформулированы принципы применения и недопущения сальдирования в общеисковом производстве.
Emerging Trends in Cellular Mobile Communication Technologies and Its Applications
Authors: Saravanan Vimala , Ramachandran M , Selvam Manjula
Published: July 2022

Mobile communication is an application of technology. It allows you to communicate with other people in different places without using any physical connection like wires or cables. Mobile communication makes our life easier and it saves time and effort. Next-generation wireless e-health technologies are a new and emerging topic in telemedicine and tableware systems. These technologies use mobile telecommunication technologies to eliminate the major disadvantages of wires in existing systems and provide better access to healthcare workers on the go. These technologies are gaining access to medical records and specialist care. This overcomes the limitations that exist these days among various clients using such medical statistics. One of the best blessings for all users is the greener use of assets and greater area freedom. In this paper, we will discuss these emerging areas and the developments of the rule and their synthesis for m-health systems. We can even discuss modern-day and future strategies for imposing this gadget in key fitness care fields and key scientific contexts.
APERTURA COMERCIAL Y CRECIMIENTO ECONÓMICO: UN ENFOQUE DE COINTEGRACIÓN VARM-VECM PARA LATINOAMÉRICA Y EL CARIBE (1967-2019)
Authors: Maridueña Larrea Ángel Augusto , Zea Moreira Edmundo Yanguely , Bustos Chiliquinga Gabriela Valeria
Published: July 2022

Esta investigación analiza los efectos que tuvo la apertura comercial de Latinoamérica y el Caribe en su crecimiento económico para el periodo de 1967 al 2019. Mediante un enfoque cuantitativo orientado al análisis de series de tiempo se validará la hipótesis de que una mayor apertura al comercio permite a esta región obtener mayores tasas de expansión de su producción. No obstante, se profundizará sobre la composición del indicador de apertura comercial usado habitualmente por el consenso de los analistas para ahondar en las dinámicas de crecimiento de las economías, ya que este resulta indiferente al hecho de que los flujos comerciales se dirijan hacia o desde el exterior, lo que implica que exista economías con situaciones opuestas respecto a su balanza comercial aun cuando exhiban coeficientes similares de apertura pero con distintas consecuencias sobre su dinámica productiva.
LIMIT ODGOVORNOSTI DRUMSKOG PREVOZIOCA ZA ŠTETU KOJA JE NASTALA NA ROBI – NOVA PRAVILA DOMAĆEG ZAKONODAVSTVA
Authors:   University of Kragujevac, Faculty of Economics, Knežević Mirjana
Published: July 2022

The international carriage of goods by road is regulated by the Convention on the Contract for the International Carriage of Goods by Road (CMR), which was amended by the Protocol to the Convention on the Contract for the International Carriage of Goods by Road (CMR) in 1978. The Protocol to the CMR Convention stipulates that the carrier is liable for compensation in respect of total or partial loss of goods and that the compensation in such cases shall not exceed 8.33 units of account per kilogram of gross weight short. The Protocol compensation limit for which the carrier is liable is much more favourable for the carriers than that stipulated in the CMR Convention. Although the Protocol to the CMR Convention regulates the carrier’s liability in accordance with the CMR convention, the compensation limit for which the carrier is liable is substantially more advantageous. In 2022 the Republic of Serbia enacted in 2020 the Law Confirming the Protocol to the Convention on the Contract for the International Carriage of Goods by Road (CMR). The legal solutions from the Protocol to the CMR Convention which regulate the issue of the limit of the compensation for which the carrier is liable for the damage of the goods have become the integral part of Serbian legislation. In this paper, the author provides a side-by-side account of the solutions from the CMR Convention and the Protocol to the CMR Convention offering additional explanations regarding the development of the international service market in the domain of carriage of goods by road.
USLUGE DOBROVOLjNIH VATROGASNIH DRUŠTAVA NEKAD I SAD
Authors:   Union University", Antonović Ratomir ,   Nikola Tesla",   of Belgrade
Published: July 2022

The Law on Voluntary Firefighting regulates the organization of voluntary fire brigades, establishment, operation and organization of voluntary fire brigades, their rights and obligations, association of voluntary fire brigades in alliances, all with the aim of better providing citizens and facilities of vital importance from fire danger. Voluntary fire brigades in Serbia have a serious tradition and date back to the reign of Prince Miloš Obrenović, who founded the first fire brigades. During that period, the first regulation concerning fire work was passed, which regulated issues in that area. Today, voluntary fire brigades have a serious development path, and in many areas they exist on the principles of voluntariness and humanity. The organization of these societies is reflected in the coordination of the members of the society, directing their activities, professional education, cooperation with state bodies dealing with firefighting and the like.
ELEKTRONSKI TESTAMENT
Authors:   University of Kragujevac, Faculty of Law, Đurđić Milošević Tamara
Published: July 2022

The main purpose of the testamentary form in inheritance law is that as a basic instrument of inheritance planning it enables the realization of the freedom of testation. In recent decades, however, a modern inheritance law has been affected by crisis process, caused by strict testamentary formalities. Hence, the question of reforming testamentary law of the Republic of Serbia arises, and manly goes into direction of its digitalization, primarily through the introduction of the electronic form of will. Of particular importance is a special type of electronic will - custodian will, which involves the provisions that involves all the services related to the testamentary disposal of clients, which to be done by custodian.
PRENOS LIČNIH PODATAKA NAKON ODLUKE EVROPSKOG SUDA PRAVDE SCHREMS II
Authors:   Institute of Comparative Law in Belgrade, Čović Ana
Published: July 2022

The paper will analyze the judgment of the European Court of Justice from July 2020, which declared the transfer of personal data of Europeans to US illegal. The "Privacy Shield" is the legal framework for regulating the transatlantic exchange of personal data for commercial purposes between the European Union and the United States, which allowed US authorities to collect personal data about entities in the European Union, but without adequate safeguards, the court said. From Facebook, dissatisfied with the verdict, which is important for multinational companies, they point out that stopping the transfer of data will have negative consequences on the results of targeted online advertising. It was determined that the principles of the American "Privacy Shield" are not in line with European laws, nor with the European General Data Protection Regulation (GDPR), and that they are therefore invalid. This verdict affects every American company, not only Facebook аnd Instagram, so the consequences of its adoption will be felt by companies such as Google and Amazon. In the meantime, the question of the impact of this verdict on the transfer of data to other countries, such as China and Russia, was raised, especially when it comes to transmission via the current social network TikTok or through the technology of the Chinese company Huawei, аnd Yandex taxi applications.
Autocomprensión y comprensión de las y los demás: diferencias debidas al sexo
Authors: Pérez Sheila Mercedes Curbelo , Rosal María de África Borges del
Published: July 2022

Para el presente estudio se ha querido comprobar si existen diferencias significativas en diversos componentes de la cognición social (ToM, empatía y competencia social) para la variable sexo, bajo la hipótesis de una mayor puntuación en el caso del sexo femenino en todos ellos. Para ello, se ha contado con la participación de 160 personas (89 chicas y 71 chicos) de dos institutos de la isla de Tenerife a los/as cuales se les aplicó tres pruebas: Historias Extrañas de Happé, Interpersonal Reactivity Index y Habilidades Sociales de Goldstein, en diversas sesiones y bajo su consentimiento informado. Se llevaron a cabo 3 pruebas MANOVA para cada uno de los tests y una fiabilidad interjueces para Historias Extrañas de Happé, obteniendo solo diferencias significativas para IRI, correspondiente a las escalas de empatía, a favor del sexo femenino. A la luz de los resultados se recomienda una mayor muestra para investigaciones futuras y continuar profundizando en los diversos componentes.
Pandemia y ciberseguridad regional, la ventana rota en educación
Authors: Díaz-Zaragoza Mariana , Torres Axel Francisco Orozco , Padilla Ramón Gerardo Navejas
Published: July 2022

Este trabajo aborda aspectos importantes de la pandemia por covid-19, aumentando presión sobre sectores entre los que destaca la educación y sus actores: estudiantes, docentes y padres de familia, quienes retomaron el proceso de enseñanza-aprendizaje on line con grandes desafíos, entre ellos la ciberseguridad. El objetivo del trabajo es describir ventanas rotas en ciberseguridad que afectan a esta comunidad. Se seleccionó el método cualitativo, porque “las acciones sociales son el resultado de lo que las personas perciben, entienden e interpretan de la realidad” (Bernal, 2010), para esta investigación solo colaboraron informantes clave, padres de familia y jovenes de educación media básica de entre 12 y 15 años de tres regiones, Guatemala Capital, Los Baños Ciudad de California USA y la Zona Metropolitana de Guadalajara, Jalisco, México, realizando entrevistas semi estructuras y dirigidas por plataforma zoom y whatsapp, abordando el objeto desde el marco teórico de las ventanas rotas de la escuela de chicago. Las conclusiones abordan ciberseguridad, problemáticas, soluciones, responsabilidad individual y compartida, buscando establecer estrategias de prevención y generar impacto con reglas básicas.
DISCOVERY LEARNING IN CHRISTIAN RELIGIOUS EDUCATION TO INCREASE LEARNING ACHIEVEMENT
Authors: Fony Ticany Karina Sinta  , Hardori Johni
Published: July 2022

The COVID-19 pandemic has changed the methods and accommodation of education. New and relevant methods should follow the transition from offline to online. However, this is not the case in all Christian Religious Education at Pusaka Abadi Elementary School class V. Many teachers still cannot implement appropriate online learning methods. This study aimed to implement the Discovery learning method during a pandemic. The research method used is classroom action research. The results showed that in the initial conditions, only 30% of students understood the material during the teaching and learning process at school. Then the researchers applied two methods, namely, cycle one and cycle two. Based on the research, the results of the first cycle increased by 60% after the discovery learning model was applied. In addition, the implementation of cycle II increased the results rapidly by 100%.
REALIZATION OF APPROACHES TO SIMULATION DYNAMIC BROADBAND SCENARIOS OF ELECTRONIC ENVIRONMENT
Authors: Buhaiov М. V. , Nahorniuk O. A. , Kliaznyka V. V. , Rykun V. L. , Havryliuk O. S.
Published: July 2022

One of the main principles of the armed conflict in the east of Ukraine remains warfare in a dynamic change of complex electronic environment. The constant increase frequency bands occupancy, the use of various types of data transmission protocols necessitates an increase in the level of training of military specialists in the field of technical analysis of signals and radio emissions recognition. This, in turn, necessitates the development of approaches to simulating wideband scenarios for use in training process. The formation of the electronic environment using the technology of software-defined radio allows us to create a scenario of almost any complexity. Wideband scenarios can be generated in real time or be pre-generated and recorded in desired format. It is advisable to use the GNU Radio digital signal processing platform to develop software modules for generating real-time radio signals. Using this software it is possible to generate signals with analog and digital types of modulation, including frequency hopping and spread spectrum signals. The maximum bandwidth of the scenario corresponds to the maximum sampling frequency of the transceiver used. With this approach, you can change the power and carrier frequency of all components online. The limitations of real-time signal generation using GNU Radio are due to the fact that the bandwidth and complexity of the signal environment that can be generated depends on the performance of the computer's processor. Wideband scenario can be generated in any format using the high-level Python programming language. Further such files can be used for their analysis offline using appropriate software or as a signal source for radiation by software-defined radio systems.
SPATIAL PROCESSING USING IN COMMUNICATION SYSTEMS FOR RADIO MONITORING COMPLEXES TO ENSURE THE NOISE IMMUNITY
Authors: Hrebenyuk O. P. , Rohovets M. A. , Hrebenyuk O. O.
Published: July 2022

The article investigates the issue of improving the level of environmental in communication systems and data transmission of radio monitoring complexes.
The relevance of this task is due to the complexity of the modern electronic environment, which is characterized by high dynamics and saturation with electronic means that work on radiation and have a mutual impact, as well as the importance of tasks performed by military radio monitoring units.
The paper proposes the use of the algorithm of multichannel weight spatial processing of signals against the background of interference to improve the obstruction of communication systems and data transmission on the basis of the radio relay station "R-415V". This approach is the most rational, since the compensation of existing obstacles is carried out subject to the presence of spatial differences between the directions of the arrival of a useful signal and the obstacle that it is typical for radio relay stations.
In addition, the technical prerequisite for the implementation of the proposed solution is the presence in the radio relay station "P 415V" of the directional antenna "DB11", consisting of two identical z-emitters and is the simplest two-element antenna grille that can be used to implement multichannel weight treatment. The article presents the spatial processing algorithm, selected performance indicators and investigated the effectiveness of its work. The calculations were carried out using the computer algebra system – Mathcad 15.
Were obtained visual, quantitative and qualitative results of performance indicators depending on the selected electronic situation for certain tactical and technical characteristics of the means of transmitting information without taking into account the influence of destabilizing factors on the quality of processing.
ECHOCARDIOGRAPHIC PARAMETERS OF PAKISTANI ADULTS WITH NORMAL ECHOCARDIOGRAM
Authors: Gurmani Sumyia , Naz Mariam , Baqai Lubna , Balouch Iram Jehan , Rasheed Shazia , Hameed Fawad
Published: July 2022

Objectives: The objective of this study was to determine the ranges of normal 2D and Doppler echocardiographic parameters in Pakistani population.
Methodology: In this cross-sectional study a total of 108 adults with normal echocardiogram were included. Comprehensive transthoracic echocardiogram was done and right and left sided chambers and mitral inflow velocities were measured. Normal ranges were computed as mean ± 2×SD (standard deviation) and normal ranges were compared with the American Society of Echocardiography (ASE) recommended normal ranges.
Results: A total of 108 healthy individuals were included in this study, a majority, 64.8% (70) were male and mean age was 32.48 ± 7.7 years with 58.3% (63) ≤ 32 years of age. Local normal reference ranges for most of the parameters are relatively narrower than the ASE reference ranges. Both the minimum and maximum reference values for most of the parameters are smaller in our population as compared to the ASE reference ranges. When comparing mitral inflow velocities, E wave in our population has higher velocities and small deceleration time while A wave has lower velocities than in the western population. Local normal reference range for the LVEF was observed to be mostly similar to the ASE reference ranges for both genders.
Conclusion: Comparing our results with internationally recognized ASE recommended values, it becomes evident that our population especially males have small LV dimensions and volumes. LV dimensions are important when decisions are taken about surgeries in valvular heart diseases like aortic regurgitation and mitral regurgitation.
Physical Reasoning of Double- to Single-Loop Transition in Industrial Reactors using Computational Fluid Dynamics
Authors: Iyer D. K. , Patel A. K.
Published: July 2022

Double- to single-loop pattern transition and a significant reduction in the power number with a decrease in the clearance of the Rushton turbine impeller in a baffled reactor was elucidated in earlier research works. The present work investigates the physical reasons behind these phenomena using the computational fluid dynamics approach. The Reynolds Averaged Navier–Stokes equations with standard turbulence model closure were used to model the turbulent flow conditions in the reactor vessels. The Multiple Reference Frame (MRF) approach was adopted to model the impeller baffle interactions in the reactor vessels. The implicit Volume of Fluid (VOF) method was employed to simulate the aeration process in the reactor configurations considered. The development of a low pressure region below the impeller of a low clearance vessel deflects the discharge streams downward, leading to the formation of a single-loop pattern. The downward movement of the discharge streams reduces the vortex activity behind the impeller blades, leading to weaker form drag and a decrease in the power number of the impeller. Similarly, a high clearance vessel provides a low pressure region above the impeller which deflects the discharge streams above the impeller, resulting in a single-loop pattern and a considerable increase in the air entrainment due to superior vortex and turbulence activity present near the free liquid surface. The standard reactor vessel was found to provide superior bulk mixing of fluid as the overall turbulent dissipation rate is 35% more than that associated with low and high clearance vessels.