bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence of Hydrothermal Fatigue on the Clinically Relevant Functional Properties of Conventional Glass-ionomer Cements
Authors: Łępicka Magdalena , Niewczas Agata Maria , Rodziewicz Magdalena , Pikuła Konrad , Kordos Paweł , Gredes Tomasz , Kurzydłowski Krzysztof Jan
Published: March 2023

During their everyday service, the restorative dental materials are subjected to temperature changes which can be viewed as intensive in the context of the highest allowed temperatures for these materials. In this work, the effect of hydrothermal fatigue on the in vitro tribological performance, compression strength, microhardness, and surface roughness of glass-ionomer cements (GICs) was studied. Samples of 3 commercially available cements were divided into the reference (aged 14 days) and thermocycled (20 000 cycles; 5–55°C) groups. The results obtained show that functional properties of the specimens subjected to thermal fatigue significantly differ from the literature data on the cements aged at constant temperatures. The effect of hydrothermal fatigue on the functional properties of cements is discussed in the context of processes induced by exposure to variable temperatures.
The application of interactive speech system based on neural network algorithm in Ideological and political network education platform
Authors: Lusi Zhang
Published: March 2023

In the face of a lot of information, students feel helpless and at a loss. In the face of all kinds of knowledge every day, they feel the unprecedented impact of The Times. Therefore, it is also the case that more and more students learn through self-active learning, self-exploration activities, by finding learning partners, learning experiences and acquiring knowledge. Today, speech recognition technology is maturing and can accurately recognize most voice commands in a noiseless environment. Through the network ideological and political teaching platform, text, figures, graphics, animation and other information will be converted into courses, learning materials and multimedia content in educational activities. On the one hand, the neural network algorithm based on the interactive voice system platform can help teachers to teach and students to learn at the same time. Fully excavate the characteristics of the network education platform, design and develop the education platform network in line with the education law, make full use of the advantages of ideological and political courses, and use the network education platform to manage teaching tasks. Online education platform mainly teaches students knowledge based on the Internet and provides students with a comfortable learning environment. Although the application of the ideological and political online education platform is not as large as other platforms, it is complete with five organs and can meet the basic functions of online education.
Application of intelligent recommendation system based on deep learning algorithm in university library talent training
Authors: Liu Dongmei
Published: March 2023

Intelligent recommendation system can greatly save users' time and energy by asking for relevant information and providing powerful guidance and help to users. Deep learning algorithm has become the most popular research direction in the past decade due to its powerful expression ability, whether it is the ability to fit data patterns or the ability to mine data feature combinations. This paper takes the university library as the main research data. The data comes from the original data of a university library for five years, including the collection of book information, the reader information of borrowing books, the book borrowing records, and the book related information with research and experimental data is selected. At the same time, in order to alleviate the start-up problem of new users, college library, as a new form of traditional library, combined with the resources of traditional library, analyzes the role of college library in college talent training in the intelligent recommendation system of college library, thinks about the driving force of college library service innovation, and discusses some measures of library service innovation under the background of talent training. Through the study of the existing book recommendation system, the shortcomings of the existing recommendation service are found, and a new service architecture of the recommendation system is proposed. The artificial intelligence recommendation algorithm is applied to achieve the purpose of intelligent book recommendation and provide the best service for teachers and students.
Study of Prevalence of Depression and Associated Stressors Among Geriatric Patients Attending Psychiatry Department of Kathmandu Medical College; a Descriptive Cross Sectional Study
Authors: Neupane Bastabika , Ghimire Suson , Paudel Shailes , Gupta Umang , Bhandari Prakriti
Published: March 2023

Background
Depression in old age is an important public health problem causing considerable morbidity and disability worldwide. This study aimed to establish prevalence and factors associated with geriatric depression in tertiary care center.
Objective
Study of prevalence of depression and associated stressors among geriatric patients attending Psychiatry Department of Kathmandu Medical College
Method
A hospital based cross-sectional study was conducted among 101 elderly patients and diagnosis was made as per ICD-10 DCR criteria. GDS was used to screen depression. PSLES was used to identify various stressful life events. Data analysis was done and results were calculated.
Result
Study conducted among 101 elderly patients showed that depression was present in 49.5% and among 51 stressful events, nineteen were present in participants. Among 50 patients diagnosed as depression, 7 (14%) had mild, 39 (78%) had moderate, 4 (8%) had mild depression. Stressful life events were significantly associated with geriatric depression.
Effects of long-term banana cultivation on trace elements deposition in soil ecology
Authors: Islam Md Saiful , Phoungthong Khamphe , Niger Asfia , Islam Md Towhidul , Ismail Zulhilmi , Is Abu Reza Md Towfiqul , Khan Rahat , Hasan Fakhrul , Kabir Md Humayun , Ezewudo Bede Izuchukwu , Ibrahim Khalid A , Idris Abubakr M
Published: March 2023

Nowadays, there is an emergent public concern about trace elements accumulation in surface soils of banana fields around the industrial area of Bangladesh. This work firstly assessed contamination of metal(loid)s (Cr, Cu, Ni, As, Zn Cd, Mn, Fe, and Pb,) in soils of banana fields, sources and ecological risks of trace elements using various indices, their bioaccumulation in banana plant tissues and probable health risk using chemometric approach. Soils and different tissues of banana (Musa spp.) were collected from long time cultivated banana fields around the industrial area and capital of old Pundranagar, Bangladesh and samples were measured by ICP-MS. Experimental data showed that concentrations range of Cr, Cr, Ni, Cu, As, Cd, Pb, Fe, Mn and Zn in soil were 1.50–61.7, 2.42–87.4, 2.00-100.8, 0.25–31.2, 0.10–12.7, 0.60–91.8, 11330–23782, 8.69–105.9, and 7.50-125.9 mg/kg, respectively. Average level of trace elements in plant parts followed the descending order of roots > leaves > stems > fruits. As a whole, abundances of the examined trace metal(loid)s varied with elements species as well as samples, which occurred apparently due to the variations of parent materials of soil and the excessive use of agrochemicals and pesticides for banana cultivation. Trace elements in soils exhibited moderate to high degree of contamination where Cr, Pb, Zn, Cd and As in soils were mainly originated from anthropogenic activities. Considering health risks of measured metal(loid)s owing to the consumption of banana fruit, both non-cancer and cancer risks were perceived due to As contamination in the study area.
Analysis of Drought Coping Strategies in Northern Ethiopian Highlands
Authors: Gidey Eskinder , Mhangara Paidamwoyo , Gebregergs Tirhas , Zeweld Woldegebriel , Gebretsadik Haftamu , Dikinya Oagile , Mussa Said , Zenebe Amanuel , Girma Atkilt , Fisseha Girmatsion , Addisu Alemu , Nasir Jemal , Tesfaye Zeleke , Birhane Emiru
Published: March 2023

Drought is one of the most damaging climate–induced threats impacting the lives of many people every year. Proactive and reactive drought coping and adapting mechanisms enable farmers to be resilient against climate induced drought and improve the current disaster preparedness and early warning systems in the drylands. The aim of this study was to assess proactive and reactive farmers’ drought adaptation & coping strategies at household level in Raya valley in southern Tigray, Ethiopia. Agro–climatological based 246 households were sampled from the lowlands, midlands and highlands. Multinomial logit model was used to identify best drought coping strategies. Respondents had mild to extremely severe drought in the last three decades. The association between the various drought severity and household heads were significant (chi2= 9.861, df=3, p < 0.05). Pasture collection and saving, soil and water conservation, and weather prediction information to adjust saving and farming system were proactive drought adaptation and coping strategies. Livestock Feeding with roasted cactus cladode, small business loans, livestock selling, productive safety–net programme, and food consumption reduction were the major reactive drought adaptation and coping strategies. The proactive and reactive drought coping and adaptation strategies identified in this study should be used to improve the current disaster preparedness and early warning systems monitoring and evaluation in the face of climate and weather extreme related impacts of climate variability and change.
Identification of asymptomatic vertebral compression fracture using a novel shape-based algorithm
Authors: Nguyen Huy G. , Nguyen Hoa T. , Nguyen Linh T.T. , Tran Thach S. , Ho-Pham Lan T. , Ling Sai H. , Nguyen Tuan V.
Published: March 2023

Background: Vertebral fracture is both common and serious among adults, yet it often goes undiagnosed. The aims of this study were to develop a shape-based algorithm (SBA) for the automatic identification of vertebral fractures.
Results: At the person level, the SBA achieved a sensitivity of 100% and specificity of 61% (95% CI, 51-72%). At the vertebral level, the SBA achieved a sensitivity of 84% (95% CI, 72% to 93%), a specificity of 88% (95% CI, 85% to 90%). On average, the SBA took 0.3 seconds to assess one X-ray.
Conclusions: The SBA developed here is a fast and efficient tool that can be used to systematically screen for asymptomatic vertebral fractures and reduce the workload of healthcare professionals.
Methods: The study included 50participants whose plain thoracolumbar spine X-rays (n = 144) were taken. Clinical diagnosis of vertebral fracture (grade 0 to 3) was made by rheumatologists using Genant's semiquantitative method. The SBA algorithm was developed to determinethe ratio of vertebral body height loss. Based on the ratio, SBA classifies a vertebra into 4 classes: 0=normal, 1=mild fracture, 2=moderate fracture, 3=severe fracture). The concordance between clinical diagnosis and SBA-based classification was assessed at both personal and vertebral levels.
Spermatogenesis disorder and activation of BCL2/Bax apoptosis pathway in the rat testis after co-exposure to PM2.5 and gaseous pollutants: A ‎possible interaction with GATA4 and GATA6
Authors: Noshadirad Elnaz , Parivar Kazem , Zarandi Saeed Motesaddi , Mortazavi Pejman , yekta Batool Gorbani
Published: March 2023

The exposure of men to particulate matter and gaseous air pollution can ‎seriously threaten spermatogenesis. However, its specific molecular ‎mechanism is a mystery. This in-vivo rat model study has focused on the effect of coexposure to ambient fine particulate matter (PM2.5) plus gaseous pollutants on the oxidant/antioxidant system in the testis and its role in the changes of sex hormones, spermatogenesis, activation of apoptosis BCL2/BAX signaling pathway and GATA4 and GATA4 protein expression in the testis cells. Twenty-one male Wistar albino rats were ‎randomly divided into three groups including the control group (air with the standard condition) and the GAS (gaseous pollutants alone) and Gas + PM2.5 (PM2.5 plus gaseous pollutants) groups exposed for 3 months (4 days a week, 5 h a day). The results revealed that coexposure to gaseous pollutants and PM2.5 significantly decreased sperm motility, sperm count, and the Johnson score, and increased sperm mortality and sperm DNA fragmentation. Also, in the Gas + PM2.5 group, the levels of testosterone and FSH in serum and the activity of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) in the testis significantly decreased, while the level of malondialdehyde (MDA) increased compared to the control group. The expression of BCL2, GATA4, and GATA6 proteins in the testis significantly decreased in the Gas + PM2.5 group, while Bax protein expression increased compared to the control group. Altogether, coexposure to ambient PM2.5 plus gaseous pollutants could induce oxidative stress in the testis and decrease hormone secretion and apoptosis in sperms via activating BCL2/BAX pathway and possible crosstalk with GATA 4 and GATA 6 proteins.
Effect of honey bee forage plants in Tunisia on diversity and antibacterial potential of lactic acid bacteria and bifidobacteria from Apis mellifera intermissa and its products
Authors: Ben-Miled Houda , Semmar Nabil , Castellanos Miguel Sautié , Ben-Mahrez Kamel , Benoit-Biancamano Marie-Odile , Réjiba Samia
Published: March 2023

Lactic acid bacteria and bifidobacteria (LAB & Bifido), isolated from the gastrointestinal tract of Apis mellifera intermissa (BGIT), honey (H), propolis (P) and bee bread (BB) of hives set in different vegetations (wildflowers, caraway, orange blossom, Marrubium vulgare, Eucalyptus and Erica cinerea), were subjected to analysis of their antibacterial potential. Isolates able to inhibit Staphylococcus aureus were selected and identified with MALDI-TOF MS leading to 154 strains representing 12 LAB & Bifido species. Lactiplantibacillus plantarum, Pediococcus pentosaceus and Enterococcus faecalis were predominantly found in all matrices. BGIT showed the highest LAB & Bifido diversity with exclusive occurrences of five species (including Bifidobacterium asteroides and Limosilactobacillus fermentum). Honey was the second origin harboring an important variety of LAB species of which Apilactobacillus kunkeei and Enterococcus mundtii were characteristic of both H and BGIT. Principal components analysis revealed associations between antibacterial activities of LAB & Bifido, matrices and honey bee forage plants. Inhibition trends of S. aureus and Citrobacter freundii were highlighted with: Lactiplantibacillus plantarum from BGIT, P, H of bees feeding on Erica cinerea; Pediococcus pentosaceus from BGIT, P, BB associated with Erica cinerea; and Bifidobacterium asteroidesfrom BGIT/orange blossom system. However, Enterococcus faeciumassociated with BGIT/Eucalyptus system antagonized Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and Acinetobacter baumannii. Our findings highlighted noteworthy effects of bee forage plants on the antibacterial activity of LAB & Bifido. Our approach could be useful to identify multiple conditions promoting antibacterial potency of LAB & Bifido under the combined effects of feeding plants and living matrices.
Prevalence of Respiratory Failure And Associated Factors In Adult Intensive Care Unit of Saint Paul’s And Addis Ababa Burn, Emergency And Trauma Hospital, Ethiopia 2020
Authors: Abebe Kindalem Gebeyehu , Koster Yohannes , Bimrew Melke
Published: March 2023

Background: Severe respiratory failure is a common reason for admission to the intensive care unit that occurs for several reasons, including pulmonary disease, neuromuscular disease, shock and the necessity for airway protection or temporary breathing support after major surgery. For patients with ARF, mechanical aeration is the cornerstone of management.
Objective: to assess the prevalence of respiratory failure and associated factors among patients admitted the adult intensive care unit of Saint Paul’s Millennium Medical College and Addis Ababa Burn, Emergency and Trauma hospitals Addis Ababa, Ethiopia, 2020.
Method: An institution based retrospective cross-sectional study was conducted from August 26 to September 25, 2020. Among a total of 2198 population, 384 samples were selected using systematic random sampling. A multivariable logistic regression analysis was used to identify predictors of respiratory failure using odds ratio, 95% confidence interval, and p-value < 0.05 to be considered as significant.
Result: The prevalence of respiratory failure in this study was 139(36.2%).The variables which were significantly associated with respiratory failure were, patients age >50 (AOR =4.88(95%CI: 2.1, 11.4),Duration of stay at intensive care unit >15 days (AOR=0.24(95%CI: 0.086, 0.65), prolonged obstructive pulmonary disease (AOR=2.3 (95%CI: 1.98, 4.79),Asthma (AOR=0.23(95%CI: 0.087, 0.6) , sepsis (AOR= 0.43 (95% CI:0.2,0.94) , cardiac disease (AOR= 3.01(95%CI: 1.36, 6.66)), Human Immune Deficiency Virus (AOR=4.3(95%CI: 1.34, 13.92) and trauma (AOR= 2.93(95%CI: 1.36, 6.35).
Conclusion: The prevalence of respiratory failure was high. Multiple factors influence the development of respiratory failure. Older age, cardiac disease, Human Immune Deficiency Virus and trauma were at risk of developed respiratory failure Therefore, Health care professionals, policy makers and other concerned bodies should give emphasis to the factors that contribute to the development of respiratory failure. They should give priority especially for older, HIV, cardiac, and trauma patients to provide easily accessible and quality care.
Does the rising position of the GVCs increase the domestic value added rate in exports of Chinese heterogeneous enterprises?
Authors: Liu Guoguang , Gao Jing
Published: March 2023

Our paper builds the model on the basis of past literatures to express the relationship between the both height and depth of Global Value Added Chains(GVCs) and the domestic value added in exports (the DVAR in exports) of Chinese heterogeneous enterprises. The World Input-Output table (WIOD) is used to measure the industry upstream degree, which is combined with the Chinese Customs database in order to achieve the indicator of the GVCs. What’s our marginal innovation is that this paper defines the height of the enterprises’ Global Value Chains(GVCs) by the distance from the export upstream degree to the import downstream degree, extending from the industrial level to the enterprise level. The research shows that the higher position embedded in the GVCs, the more an enterprise can promote the DVAR in exports. The closer the enterprise is to the world's forefront division of labor, and the deeper it is embedded in GVCs, the more it can promote the DVAR in exports. Moreover, the higher import quality, the larger import scale and the more import downstream degree, the more the DVAR in exports will decrease. Comparing with general enterprises, processing enterprises have greater import downstream degree leading to the reduction in independent R&D and key components, so improving the position of GVCs cannot significantly improve the DVAR in exports. Although high-tech enterprises rely heavily on imports of core technology and key components with greater import downstream degree , they can improve the DVAR in exports through improving the height of GVCs. From the mechanism test, we can know that improving the height of GVCs can indirectly promote the DVAR in exports by improving the total factors productivity(TFP), reducing the import scale of intermediate goods and low-end manufacturing industry agglomeration.
JEL Classification: E24, F16, L16.
Situation Analysis of Population Level Interventions Targeting Risk Factors for Diabetes Mellitus and Hypertension Implemented in Rwanda, Malawi, and South Africa: A Desk Review
Authors: Phiri Tamara , Nganabashaka Jean Pierre , Uwimana-Nicol Jeannine , Burns Jake , Chapotera Gertrude , Rulisa Stephen , Young Taryn , Rehfuess Eva , Tumusiime David
Published: March 2023

BackgroundThe prevalence of non-communicable diseases in low- and middle-income countries is increasing. Hypertension and diabetes mellitus share four main risk factors namely tobacco use, harmful alcohol consumption, unhealthy diet, and physical inactivity. In this desk review, we analysed existing interventions targeted at the above risk factors in Rwanda, Malawi, and South Africa. We compared existing interventions with recommended WHO ‘Best-Buys’ interventions.MethodsDocuments were sourced directly from stakeholders or retrieved online. We designed a data extraction template and grouped interventions under the four risk factors. Based on the WHO Strategy for Diet, Physical Activity and Health, each intervention was analyzed under three categories - supporting policies, supporting programs, and enabling environment.Results2633 documents were screened across the three countries. 72 documents were included in the review. All three countries had a national NCD policy. Rwanda had the largest number of interventions on physical activity. It was also the only country with a public smoking ban in place. Interventions on diet in Rwanda largely addressed undernutrition rather than risk factors for diabetes mellitus and hypertension. There was no alcohol policy. South Africa had the largest number of interventions targeting unhealthy diet. A policy on alcohol was in place in addition to a liquor act which regulated the purchase and marketing of alcohol. There were designated days to promote physical activity, but no structured nationwide programs. There were multiple initiatives to promote smoking cessation in designated areas such as schools and workplaces. Malawi had developed an alcohol policy. Diet programs largely focused on curbing undernutrition in school going children rather than NCDs. There were no policies on salt restriction or sugar sweetened beverages. There were no interventions targeted at tobacco smoking or structured physical activity programs. In all three countries, there were more policies than programs to implement the said policies.ConclusionAll three countries had responded to the NCD burden through overarching NCD programs and policies. There were gaps amongst the three countries in the breadth of interventions addressing each of the risk factors for diabetes mellitus and hypertension namely tobacco use, harmful alcohol consumption, unhealthy diet, and physical inactivity.
Mammal depletion processes in a UNESCO biosphere reserve: an integrative analysis of population viability
Authors: Mande Claude , Moore Jennifer F. , de Perre Frederik Van , Laudisoit Anne , Butynski Thomas M. , Cakenberghe Victor Van , Baelo Pascal , Gembu Guy-Crispin , Verheyen Erik
Published: March 2023

Many tropical biosphere reserves face the problem of overexploiting biological resources, which is a major cause of biodiversity loss. We used an integrative approach, combining camera trapping and bat trapping in diverse habitats over multiple surveys in Yangambi Biosphere Reserve, Democratic Republic of the Congo. We investigated whether species-level traits of volant and nonvolant mammals, as well as key features of their habitats, can predict effects on species detectability and occupancy, and thus on community-level species richness. We applied single-season occupancy models using multi-species data for camera trap and bat trap datasets. We found a positive effect of denser woodlands on occupancy estimates over 6480 camera-days. Average adult body weight and whether species were group-living negatively influenced species detection estimates. Species richness and body size assemblages approximated marginal rainforest diversity. This included small-bodied, generally high-hunting-resilient arboreal and terrestrial species. During 324 trap-nights, site location was the main determinant of habitat occupancy at the community level. Occupancy estimates were not, however, directly linked to variables measured in different stands. This may be a consequence of habitat patterns at larger spatial scales, which require additional data to clarify. Species-level characteristics that might influence detection estimates were not, however, included in the parsimonious output of the model used. Our findings indicate specific mechanisms triggering mammalian impoverishment above a critical size that may drive ecological changes. Thanks to certain life-history traits, bats can compensate for some of the lost services previously provided by large mammals, thus contributing to the maintenance of biodiversity dynamics.
Hydrochemical characteristics and water quality evaluation for irrigation and drinking purposes of Bangong Co Lake Watershed
Authors: Shao Yuxiang , Yan Buqing , Liu-Lu Baiyang , Feng Gang , Zhang Kun , Gong Kang
Published: March 2023

In order to explore the hydrochemical characteristics, influencing factors, and water quality of various water bodies in Bangong Co Lake Watershed, 60 water samples were collected from lake, river, groundwater, glacier water bodies in the watershed. Piper diagram, Gibbs’ diagrams, ion ratio analysis, statistical methods, and principal component analysis were used to study the hydrochemical characteristics and its influencing factors. Drinking water quality index (DWQI) and USSL classification were applied to assess the groundwater quality suitability for agricultural and drinking purposes. The hydrochemical characteristics show the differences among water bodies and their spatial distribution. Analyzed groundwater and surface water samples such as river water and glaciers mainly presented Ca-HCO3 type, and lake water mainly presented Na-Cl type and a small number of Na-HCO3·Cl type. The lake water chemical components are mainly affected by evaporative karst decomposition. The main mineralization process of groundwater and river water was related to the dissolution of reservoir minerals such as dolomite and calcite, and halite. The DWQI indicates that 79% of the groundwater samples in the study area showed a good quality for drinking. For irrigation water quality, the electrical conductivity (EC), calculated Sodium adsorption ratio (SAR), Magnesium hazardous ratio (MHR) showed that more than 13% of the total samples were not suitable for irrigation. USSL classification indicated that glacier and river water are relatively suitable for irrigation. And part of the groundwater and lake water has very high alkalinity or salinity which is alarming when considered for irrigation.
Risk factors and nomogram model of postoperative delirium in children with congenital heart disease: a single center prospective study
Authors: Mao Dou , Fu Lijuan , Zhang Wenlan
Published: March 2023

Objective Delirium is a common postoperative complication in children with congenital heart disease, which affects their postoperative recovery. The purpose of this study is to explore the risk factors of delirium and construct nomogram model to provide reference for the prevention and management of postoperative delirium in children with congenital heart disease.
Methods 470 children after congenital heart surgery treated in the cardiac intensive care unit(CICU) of Shanghai Children's Medical Center were divided into model group and verification group according to the principle of 7:3 distribution, the delirium related influencing factors of 330 children in the model group were analyzed, the nomogram model was established by lasso regression and logistic regression; The data of 140 children in the validation group were used to verify the effect of the model.
esults Multivariate logistic regression analysis showed that age, disease severity, noninvasive ventilation after tracheal intubation extraction, delayed chest closure, phenobarbital dosage, promethazine dosage, mannitol and high fever were independent risk factors for postoperative delirium; The area under the receiver operating characteristic curve(AUC) of the nomogram model was 0.864 and the Brier value was 0.121; Validation of model effect: The results showed that 51 cases were predicted by the model and 34 cases were actually occurred, including 4 cases of false negative and 21 cases of false positive. The positive predictive value was 58.8%, the negative predictive value was 95.5%.
Conclusions The nomogram model constructed in this study showed acceptable performance of predicting postoperative delirium in children with congenital heart disease.
Novel Pedestrian Detection and Suspicious Activity Recognition Using Enhanced YOLOv5 and Motion Feature Map
Authors: Gawande Ujwalla Gawande Ujwalla , Hajari Kamal Hajari Kamal , Golhar Yogesh
Published: March 2023

Pedestrian detection and suspicious activity recognition are notable challenges in vision-based surveillance systems. However, the accuracy of pedestrian detection is influenced by a wide range of factors, including human presence, trajectory, posture, complex background, and object deformation. In this paper, we developed a pedestrian dataset that encompasses student behavior in an institution, such as cheating, stealing lab devices, dispute, and threatening scenarios. It provides uniform and steady identification annotations of pedestrians, making it suitable for pedestrian detection, tracking, and behavior detection. In addition, we also improved detection accuracy using the enhanced YOLOv5 architecture. Next, we proposed an efficient method for detection of global and local unusual behaviors. The proposed method extracts motion features that accurately describe pedestrian motion, speed, and direction, etc. The proposed method is validated on a proposed student behavior database and three additional publicly available benchmark datasets. It gives state-of-the-art detection accuracy of 96.12% and miss rate of 6.68% compared to the existing techniques. The experimental results demonstrate a substantial performance improvement in anomalous activity recognition. The final section summarizes and discusses future research directions.
Comparison of Doppler and oscillometric methods of assessing ankle-brachial index in non-diabetic premenopausal women in Ghana
Authors: Agyekum Jennifer Adjepong , Oblitey Jared Nii , Yeboah Kwame
Published: March 2023

Introduction

Peripheral arterial disease (PAD) is a common cardiovascular disease less commonly diagnosed in female patients. PAD is objectively diagnosed using the ankle-brachial index (ABI), which can be measured using the ‘gold standard’ Doppler method or the oscillometric method. The agreement between these two methods is less investigated in sub-Saharan African poplation. Therefore, we compared the diagnostic characteristics of the oscillometric method of measuring ABI with the Doppler method in premenopausal female patients suspected of PAD in Ghana.

Method

ABI was measured in non-diabetic premenopausal women suspected of PAD using the Doppler method with a 8 MHz handheld Doppler (LifeDop 250, Summit Doppler) and an oscillometric device (Vasera 1500N, Fukuda Denshi) in 160 patients (320 legs). PAD was defined as ABI < 0.9 in at least one leg. Leg pains were assessed using the Edinburgh claudication questionnaire.

Results

Leg pain on exertion was present in 101 patients screened with similar mean ABIs in the right and left legs. The prevalence of PAD as screened by the Doppler method was 25.7% (18.9–33.4%) and that of the oscillometric method was 32.2% (24.9–40.3%). In comparison to the Doppler method, the accuracy of the oscillometric method was 88.2%, with sensitivity, specificity, positive and negative predictive values of 89.7%, 87.6%, 71.4% and 96.1%, respectively. The overall agreement between the Doppler and oscillometric methods was high [\(\kappa\)=0.78 (0.62–0.91), p < 0.001] and intraclass correlation of 0.89 (0.87–0.92, p < 0.001). In ROC curve analysis, the oscillometric method showed an area under curve of 0.925 compared to the Doppler method in the diagnosis of PAD.

Conclusion

In nondiabetic premenopausal women in our study, oscillometric ABI performed acceptably in the diagnosis of PAD when compared with Doppler ABI.
Intraoperative awareness with recall during General Anesthesia in Damascus University Hospitals in Syria (A Cohort Study).
Authors: Rekmani Najwa
Published: March 2023

Background
Awareness with recall during general anesthesia is one of the frightening complications of general anesthesia, which indicates the failure of anesthesia. Awareness is an underestimated complication despite the fact that it sometimes carries devastating psychological risks for patients. To our knowledge this is the first research in Syria that reports the incidence of awareness with recall during general anesthesia.
Aims
to assess the incidence of awareness with recall during general anesthesia in Damascus University teaching hospitals.
Design:
multi-central prospective cohort study.
Setting:
Three main Teaching Hospitals of Damascus University: Al-Assad, Al-Mowassat & Maternity Hospitals during the time period between January and November 2021.
Study Sample:
3500 patients aged ≥ 18 years were included.
Results
the incidence of Awareness with recall during general anesthesia in Damascus University Teaching Hospitals was 0.66% in low risk of awareness surgery and 1.8% in high risk of awareness surgeries. The most frequent manifestations of awareness were auditory perceptions, paralysis and pain (100%, 100% & 97.4% respectively).
Conclusions
Awareness with recall rate was somehow high in Damascus University Teaching Hospitals in comparison to the figures reported by American and European studies, this difference was especially noted in a low risk of awareness surgery. The rates were similar in the high risk of awareness surgeries. Lack of premedication and low concentration of inhalational agent were the main reasons for awareness.
Muğla Kentinde Kültürel Mirasın İzini Sürmek: Unutulmaya Yüz Tutmuş Geleneksel Bir Meslek Olan “Semercilik” Üzerine İnceleme
Authors: MENEKŞE Metin , BERBER Onur
Published: March 2023

İnsanlığın tarihi kadar eski olan el sanatları geleneği, insanoğlunun ihtiyaçları doğrultusunda giderek zenginleşmiştir. Meslek sahibi insanlar, farklı zamanlarda el emeği ürünler ortaya koymuşlar ve zaruri ihtiyaçların giderilmesini sağlamışlardır. Fakat günümüzde meydana gelen gelişim ve bunun beraberinde ortaya çıkan değişim, toplumların kültürüne de yansımıştır. Özellikle değişen teknoloji, yaşam biçimleri ve ihtiyaçlar söz konusu mesleklerin geleceğini de etkilemiştir. Bu etki ise geleneksel meslekler açısından iyi yönde olmamıştır. Geleneksel kültürün bir parçası olan el sanatları, değişimin de etkisiyle günümüzde işlevini yitirmeye başlamıştır. El sanatlarına duyulan ihtiyaç giderek azalmış, hazır ürüne rağbet artmıştır. Bu alanlarda çalışacak eleman bulunamamaya başlamıştır. Dolayısıyla eski ustaların sahip olduğu meslekî bilgi ve tecrübe yeni kuşaklara aktarılamamıştır. Bu nedenle de el sanatlarıyla uğraşacak çıraklar yetiştirilememiştir. En nihayetinde ilgili mesleklerin unutulup gitmesi durumu ortaya çıkmıştır.
Bu çalışmada, kökleri çok eskilere giden ve sosyal, kültürel ve ekonomik açıdan önem taşıyan geleneksel mesleklerden semerciliğin tarihi seyri Muğla şehri özelinde incelenmiştir. Nitekim Muğla, tarihî Arasta’sı, Yağcılar Hanı, Saburhane Semti, Saatli Kule’si ile geleneksel olanı muhafaza etme gayretinde olan bir şehirdir. Geleneksel kent dokusu izlerinin günümüzde de yaşatılmaya çalışıldığı bir yerleşim yeri olma özelliğini taşımaktadır. Aynı zamanda, el sanatları alanında da önemli bir potansiyele sahiptir. Arşiv belgeleri ve diğer yazılı kaynaklardan hareketle bu el sanatlarına dair bilgilere ulaşılabilmektedir. Ayrıca sözlü tarih yöntemi de kullanılarak birtakım bilgiler elde edilebilmektedir. Nitekim Muğla şehir merkezinde semercilik mesleğini icra etmiş olan son ustaların yanında çalışmış iki kaynak kişi tespit edilerek onların bilgilerinden istifade edilmiştir. En nihayetinde, Muğla şehir merkezinde unutulmuş geleneksel bir meslek olan semerciliğe dair yazılı kaynaklardan ve mesleği icra edenlerin gözlemlerinden, deneyimlerinden yararlanılması yoluyla kültürel mirasa dikkat çekmek ve daha sonra bu alanda yapılacak çalışmalara referans oluşturmak hedeflenmiştir.
Berlin Sefiri İbrahim Hakkı Paşa’nın I. Dünya Savaşı Hakkında Bilinmeyen İki Raporu (1916)
Authors: KARACAGİL Ö. Kürşad
Published: March 2023

Türk-Alman ilişkileri uzun bir tarihi geçmişe sahiptir. İlişkilerde önemli dönüm noktalarından birisi ve belki de en önemlisi, Türk tarihine, Harb-i Umumi ya da Cihan Harbi olarak geçen I. Dünya Savaşına müttefik olarak girilmesidir. Savaş içerisinde de ilişkilerin gelişmesine önem veren iki ülke, en tecrübeli bürokratlarını büyükelçi/ Sefir-i Kebir olarak görevlendirmişlerdir. Bu bağlamda, Osmanlı Devleti, Sadrazamlık dahil olmak üzere birçok üst düzey görevde bulunan, Darülfünunda verdiği dersler ve kitaplarıyla bilinen, batıyı ve batılı fikirleri iyi tanıyan İbrahim Hakkı Paşa’yı 21 Temmuz 1915’te Berlin’e Sefiri Kebir olarak atamıştır. Hakkı Paşa bu görevi Temmuz 1918 tarihine yani vefatına kadar sürdürmüştür.

Makalede, İbrahim Hakkı Paşa’nın bizzat kaleme aldığı iki rapor tartışılacaktır. Raporlar, 3 ve 11 Ocak 1916 tarihlerinde yani I. Dünya Savaşı’nın ortalarında yazılmış; “mahremane” ibaresiyle Osmanlı Hariciye Nezareti yollanmıştır. Raporlar birbirini tamamlar niteliktedir. Raporlarda, I. Dünya Savaşında yaşanan gelişmeler bağlamında, ateşkes, Almanya’nın savaşa bakışı, cepheler ve burada yaşanan gelişmeler, savaşın hangi devlet ya da devletler mağlup edilirse İttifak devletlerince kazanılabileceği tartışması yapılmıştır. Hatta bazı noktalarda Almanya’ya karşı eleştiriler dahi bulunmaktadır. Dönemin Osmanlı yönetimi açısından hayati öneme sahip olan bütün bu bilgiler, bizzat Berlin’de bulunan ve savaşı Almanya’nın başkentinden müşahede etme imkânına sahip olan bir Osmanlı Sefiri gözünden ele alınmıştır.

Anahtar Kelime: Birinci Dünya Savaşı, Almanya, Osmanlı Devleti
Eski Van Şehri ve Tarihi (1915’e Kadar)
Authors: TEKİN Rahmi
Published: March 2023

Anadolu’nun kadîm ve serhat şehri olan Van, yerleşim yeri olarak MÖ. 4000 yıllarına kadar gider. Ancak ilk ayrıntılı bilgiler MÖ. IX. yüzyılda Urartu Devleti’nin kurulmasıyla elimize geçmektedir. Edinilen bilgilere göre, Urartu Devleti o zamanın koşullarında ileri seviyede bir medeniyet oluşturmuştur. MS. VII. yüzyıldan itibaren bölgeye Güneyden Kuzeye doğru akınlar düzenleyen İslâm orduları tarafından fethedilmiştir. Abbasî hâkimiyeti döneminde bölgedeki birtakım karışıklıklar güç kullanılarak bastırılmıştır. XI. yüzyılın başlarından itibaren Van Gölü havzası, Doğudan Batıya hareket eden Türklerin yığınak yaptıkları yer haline gelmiştir. 1071 Malazgirt zaferinden sonra da Büyük Selçuklu Devleti’nin askeri bir garnizonu haline gelmiştir. 1100 tarihinde kurulan Ahlat-Şahlar (Ermen-Şahlar) Devleti zamanında, bölgede büyük ölçüde imar faaliyetleri yapılmıştır. Van Ulu Camii bu dönemde, XII. yüzyılda II. Sökmen tarafından yapıldığı tahmin edilmektedir. Daha sonra bölgede hüküm süren Eyyubiler, İlhanlılar, Celayirler, Ak Koyunlular ve Kara Koyunlular, bölgeye kültür ve sanat bakımından önemli katkılar sağlamışlardır. Osmanlı Devleti’nin hâkimiyeti her ne kadar 1514 Çaldıran zaferiyle anılsa da kalıcı hâkimiyeti 1548’den sonra olmuştur. Osmanlı Devleti tarafından, Van’a ilk atanan beylerbeyi bu tarihte İskender Paşa’dır. 1915’e gelindiğinde emperyalist devletlerin kışkırtması sonucu isyan eden Ermeniler, şehri yakıp yıkmışlardır. Van, halen günümüzde kaldırılamayan büyük bir enkaz yığını haline gelmiştir.
The Influence of Climatological Variables on Particulate Matter and Sulphur Dioxide
Authors: ZATEROĞLU Mine Tülin
Published: March 2023

Hava kirleticilerin tahmin edilmesi, insan sağlığı üzerindeki etkilerinin artması ve çevre sorunları nedeniyle önemli bir konu haline gelmiştir. Bu makale, Çoklu Doğrusal Regresyon yöntemine dayalı istatistiksel yaklaşım yoluyla hava kirletici konsantrasyonlarını tahmin etmek için bir tahmin modeli oluşturmayı amaçlamaktadır. Analiz, Kırıkkale'de bulunan izleme istasyonunda hava kirleticilerin günlük konsantrasyon değerlerini ve bulutluluk, rüzgar hızı, yağış, bağıl nem ve hava sıcaklığı gibi iklimsel değişkenleri içermektedir. İklim elemanlarının hava kirleticileri üzerindeki etkisi, regresyon analizi yöntemi kullanılarak istatistiksel açıdan önemli olarak tanımlanmıştır (%5’ten küçük önem düzeyi). Değerlendirilen iklimsel değişkenler arasında, partikül madde için adımsal regresyon modellerinde en sık seçilen değişkenler bulutluluk, yağış ve bağıl nem olurken, kükürt dioksit için en çok bağıl nem ve minimum hava sıcaklığı seçilmiştir.
Çelik Doğal Gaz Boruların Eğrilik Kapasitesi Üzerine Örnek Bir Çalışma: İstanbul Boğaz Geçişi
Authors: YİĞİT Adil
Published: March 2023

Doğal gaz boru hatları iletim ve dağıtım hattı olarak genellikle iki ana gruba ayrılmaktadır. Ancak doğal gazı bir bölgeden diğerine taşıyabilmek için ise çelik boru hatları (iletim hatları) kullanılmaktadır. Doğal gaz çelik şebeke inşasında bazen düşey veya yatay kurpların dönülmesi gerekebilmektedir. Böyle durumlarda çelik boruların eğrilik kapasiteleri belirleyici olmaktadır. Bunun yanında bu kapasiteyi sınırlayan önemli bir faktör de lokal burkulma durumudur. İstanbul’daki doğal gaz şebekesinin arz güvenliğini güçlendirmek için İstanbul Boğazı’nın her iki yakasında bulunan doğal gaz çelik iletim hatlarının birbirine entegrasyonu planlanmaktadır. Boğaz’ın en kesiti dikkate alındığında bir düşey kurp örnek çalışması olarak değerlendirilebilecek tasarımda sadece boruların eğrilik kapasiteleri, et kalınlıkları ve lokal burkulma sınırları göz önüne alınmıştır. İstanbul doğal gaz şebekesinde kullanılmakta olan çelik borular dikkate alınarak hangi çaptaki boruların hangi eğrilik kapasitelerine ve hangi lokal burkulma sınır değerlerine sahip olduğu tespit edilmiştir. Elde edilen sonuçlara göre X-52 çelik malzemeden üretilmiş 12” çelik borunun en optimum çözümü verdiği tespit edilmiştir.
Yaya Üst Geçitlerinin 2018 Deprem Yönetmeliğine Göre Analiz ve Tasarımları
Authors: SAMIM Mohammad Yatim , TEMEL Beytullah
Published: March 2023

Bu çalışmada, biri kafes sistemli diğeri kemer askılı olmak üzere iki adet yaya üst geçidinin Türkiye Bina Deprem Yönetmeliği 2018 (TBDY-2018)’e göre analiz ve tasarımları yapılmıştır. Yaya üst geçitlerinin boyutlandırılmasında, Çelik Yapıların Tasarım, Hesap ve Yapım Esaslarına Dair Yönetmelik 2016 (2016-ÇYTHYE) kullanılmıştır. Üst geçitlerin deprem analizleri Mod Birleştirme Yöntemine göre yapılmıştır. Her iki yapının modellenmesi ve yapısal analizlerinde SAP2000 paket programından faydalanılmıştır. Yapı tasarımları için Yük ve Dayanım Katsayıları ile Tasarım (YDKT) ve Güvenlik Katsayıları ile Tasarım (GKT) ilkelerine göre yük birleşimleri oluşturulmuş ve boyutlandırmaları yapılmıştır.
Next-Month Prediction of Hourly Solar Irradiance based on Long Short-Term Memory Network
Authors: AKSU İnayet Özge
Published: March 2023

Today, in parallel with the population growth and the advancement of technology, development concerns have started to arise in terms of country administrators. Therefore, alternative solutions to classical energy sources are sought. Renewable energy sources are one of the preferred energy sources today. The popularity of renewable energy sources, including solar energy, is increasing day by day. Solar energy has the potential and accessibility to spread faster than other renewable energy sources. Since Türkiye is located in a region with a high potential in terms of solar energy, which is generally called the sun belt, it is a right decision to prefer solar energy as an energy source in our region. In this study, time series prediction using Long Short-Term Memory (LSTM) Network method is used for short-term solar irradiance estimation. In order to demonstrate the success of the results, a comparison was made with the Artificial Neural Network (ANN) method. Finally, prediction results of solar irradiance were compared with statistical tests and error analyzes were given in numerically.
Does Baseline Serum Androgen Levels Have an Impact on Ovulation Induction Cycle Outcomes by Using Clomifene Citrate Among Infertile Women with Polycystic Ovary Syndrome? A Retrospective Cohort Study
Authors: Kahyaoglu Serkan , Ozaksit Muzeyyen Gulnur , Karacan Duman Gozde , Ozturk Atan Deniz , Kahyaoğlu Inci , Kuru Pekcan Meryem , Moraloglu Tekin Ozlem
Published: March 2023

OBJECTIVE: Hyperandrogenism is one of the diagnostic criteria for polycystic ovary syndrome. Women with polycystic ovary syndrome suffer from infertility due to anovulation. Hyperandrogenism results in follicular arrest at the antral stage during folliculogenesis. baseline intrinsic hyperandrogenism affects the success of ovulation induction or not. The relationship between baseline serum androgen levels and ovulation induction cycle outcomes by using clomifene citrate among infertile women with polycystic ovary syndrome has not been investigated thoroughly.
STUDY DESIGN: Ovulation induction cycle outcomes of 35 infertile women diagnosed with polycystic ovary syndrome according to Rotterdam criteria who have received 50-100 mg/day clomifene citrate have been evaluated retrospectively. Menstrual cycle day 2-5 serum levels for gonadotropins, androgens, metabolic parameters, and ovulation induction cycle outcomes have been compared between women who have and have not achieved clinical pregnancy following treatment.
RESULTS: Serum basal follicular stimulating hormone, LH, E2, fasting cholesterol, glucose, and HOMA-IR levels were comparable between these two groups of patients. Unlike other serum androgens, baseline serum-free testosterone level is significantly lower for patients who have achieved clinical pregnancy following ovulation induction with clomifene citrate. The baseline serum cut-off level for free testosterone to predict clinical pregnancy was 1.94 pg/ml with 75% sensitivity and 67% specificity rates.
CONCLUSION: Lower or higher levels of androgenic milieu within the ovaries result in defective folliculogenesis and ovulation failure. Increased serum levels of free testosterone which is a proxy for ovarian androgen production might be a detrimental factor for clinical pregnancy rates of women with polycystic ovary syndrome by impairing proper folliculogenesis.