bluuebunny/crossref_metadata_2025 huggingface dataset:
Differences in the Sublethal Effects of Sulfoxaflor and Acetamiprid on the Aphis gossypii Glover (Homoptera: Aphididae) Are Related to Its Basic Sensitivity Level
Authors: Wang Wei , Huang Qiushi , Liu Xiaoxia , Liang Gemei
Published: May 2022

The cotton aphid, Aphis gossypii, is an important insect pest of many crops around the world, and it has developed resistance to a large number of frequently used insecticides. The sublethal effects of insecticides not only have an environmental risk to arthropods but also have the potential to promote resistance evolution. The sublethal effects (inhibitory or stimulatory) are influenced by many factors, such as the type of insecticide, sublethal concentrations, pest species, and others. In this study, the sublethal effects of sulfoxaflor and acetamiprid on A. gossypii were compared using two field-collected populations. The results show that sulfoxaflor was more toxic than acetamiprid against A. gossypii in both populations, the LC50 concentrations of acetamiprid and sulfoxaflor were 6.35 and 3.26 times higher, respectively, for the Jinghe population than for Yarkant. The LC25 concentration of acetamiprid significantly reduced adult longevity and fecundity in exposed adults (F0) of the Jinghe population, but it had no significant effects on these factors in Yarkant. Similar inhibitory effects were found in the F1 and F2 generations, but the biological traits in the Yarkant population were significantly reduced when the parents (F0) were exposed to LC25 of acetamiprid, whereas the changes in the Jinghe population were not significant. However, sublethal sulfoxaflor showed a stimulatory effect on A. gossypii in the F0 and F1 generation; the adult fecundity and longevity of the F0 generation were significantly higher in Jinghe, while the biological traits of the F1 generation were obviously higher in Yarkant. In the F2 generation, the r and λ were significantly higher in Jinghe; meanwhile, these biological traits were reduced in Yarkant. These results indicate that sulfoxaflor and acetamiprid had different sublethal effects on A. gossypii that varied by generation. In addition, we speculate that the genetic background and the resistance levels of A. gossypii may also influence the sublethal effects. Our findings are useful for assessing the overall effects of sulfoxaflor and acetamiprid on A. gossypii.
From Streptococcal Pharyngitis/Tonsillitis to Myocarditis: A Systematic Review
Authors: Schmutzler Lukas , Mirna Moritz , Hoppe Uta C. , Lichtenauer Michael
Published: May 2022

(1) Background: Myocarditis following group A streptococcal pharyngitis and tonsillitis is a relatively rare medical condition. The aim of this systematic review was to identify specific ECG changes, laboratory parameters and signs, and symptoms associated with this disease. (2) Methods: A systematic literature review was performed in concordance with the current PRISMA guidelines, including the databases PubMed/MEDLINE, Web of Science, CDSR, CENTRAL, CCAs, EBM Reviews, and LILACS. Articles were included if they covered myocarditis after streptococcal pharyngitis/tonsillitis in humans. Exclusion criteria were rheumatic, autoimmune, or toxic myocarditis. (3) Results: Patients that developed myocarditis after group A streptococcal throat infection frequently presented with chest pain, elevated cardiac markers, and ST-segment elevations, making it a condition that shows more similarities to acute coronary syndrome than viral myocarditis. (4) Conclusions: Myocarditis after streptococcal pharyngitis and/or tonsillitis is a rather infrequently described disease; however, it is necessary to consider this condition when investigating streptococcal sore throat because it can be associated with severe adverse events for the individual patient.
Special Issue on “Clinical Research of Spontaneous Pneumothorax”
Authors: Ciriaco Paola
Published: May 2022

Spontaneous pneumothorax (SP) may occur in the apparent absence of disease (primary spontaneous pneumothorax PSP) or as a consequence of an underlying condition (secondary spontaneous pneumothorax SSP) [...]
In Vitro Electrochemical Corrosion Assessment of Magnesium Nanocomposites Reinforced with Samarium(III) Oxide and Silicon Dioxide Nanoparticles
Authors: Abdalla Moataz , Sims Austin , Mehanny Sherif , Haghshenas Meysam , Gupta Manoj , Ibrahim Hamdy
Published: May 2022

Recent research on biodegradable magnesium-based implants has been focusing on increasing their mechanical strength and controlling their corrosion rate. One promising approach to significantly improve the mechanical properties of magnesium is the addition of nanoparticles to the magnesium matrix. However, there is limited research on the corrosion behavior of these new magnesium nanocomposites. In this study, the electrochemical corrosion characteristics of this new class of biomaterials are investigated. Two magnesium nanocomposites reinforced with nanoparticles (0.5, 1.0, and 1.5 Vol%) of samarium oxide (Sm2O3), and silicon dioxide (SiO2), were fabricated and tested. Corrosion behavior was assessed in comparison with high-purity magnesium samples as the control group. The addition of the nanoparticles to the magnesium matrix strengthened the materials, which was represented in an increase in the microhardness. However, the fabricated nanocomposite samples exhibited a slightly reduced corrosion resistance compared to the high-purity magnesium control due to the differences in the purity level and fabrication methods. Both nanocomposites showed the highest corrosion resistance, represented in the slowest corrosion rates, at the 1.0 Vol% content. Hence, the developed nanocomposites are still promising candidates as biodegradable materials for bone-fixation application owing to their superior mechanical properties and acceptable corrosion characteristics.
Intelligent Academic Specialties Selection in Higher Education for Ukrainian Entrants: A Recommendation System
Authors: Fedushko Solomiia , Ustyianovych Taras , Syerov Yuriy
Published: May 2022

In this article, we provide an approach to solve the problem of academic specialty selection in higher educational institutions with Ukrainian entrants as our target audience. This concern affects operations at universities or other academic institutions, the labor market, and the availability of in-demand professionals. We propose a decision-making architecture for a recommendation system to assist entrants with specialty selection as a solution. The modeled database is an integral part of the system to provide an in-depth university specialties description. We consider developing an API to consume the data and return predictions to users in our future studies. The exploratory data analysis of the 2021 university admission campaign in Ukraine confirmed our assumptions and revealed valuable insights into the specifics of specialty selection among entrants. We developed a comprehension that most entrants apply for popular but not necessarily in-demand specialties at universities. Our findings on association rules mining show that entrants are able to select alternative specialties adequately. However, it does not lead to successful admission to a desired tuition-free education form in all cases. So, we find it appropriate to deliver better decision-making on specialty selection, thus increasing the likelihood of university admission and professional development based on intelligent algorithms, user behavior analytics, and consultations with academic and career orientation experts. The results will be built into an intelligent virtual entrant’s assistant as a service.
The spatial development strategy of agricultural land use in the Non-Black Earth economic zone of Russia
Authors:   FSBI FNCC VNIIESH, Moscow, Polunin G.A. , Alakoz V.V. ,   FSBI FNCC VNIIESH, Moscow
Published: May 2022

The article deals with the model of spatial development of agricultural land use, and the functions of land resources as well as the objective factors influencing the formation of land relations in the Non-Black Earth Region and the organization of land administration. A brief analysis of the main phenomena and processes in agricultural land use take place in this paper. The ways of development of agricultural land use as a means of production are considered here as well. The authors propose the forecast for the development of agricultural land use and formulate the goals, objectives and main directions of the strategy for the spatial development of agricultural land use. It is shown that the program-target scenario will be the most important in the development of agricultural land use in the Non-Black Earth Region of Russia.
The impact of the arrangement of arable land on efficiency of agricultural machinery
Authors:   State University of Land Management, Moscow, Mamedova E.E.
Published: May 2022

The territory organization of agricultural enterprises has an impact on the productivity of agricultural machinery. The article considers the spatial factors that must be taken into account when determining the efficiency of agricultural machinery within the assessment of intrafarm land management projects. The author presents the calculating method of unscheduled losses of working time, and the time of field work taking into account the crops compactness and production losses from violation of such a compactness.
The influence of cadastral and land management works on the tourist and recreational potential of the land and property complex (by example of the tourist and recreational cluster «Plyos»)
Authors:   State University of Land Management, Moscow, Fomina A.V. , Antropov D.V. ,   State University of Land Management, Moscow
Published: May 2022

This article discusses the existing and improved methods for determining the tourist and recreational potential based on indicators affecting the recreational cluster. It is proposed to include cadastral and land management works taking into account the increasing coefficients in determining the recreational potential to increase the efficiency of managing land and other resources of the cluster, improve investment attractiveness, and develop the system of land relations and the tourist and recreational industry in general.
Physiological state of the hybrid Russian sturgeon × Siberian sturgeon (Acipenser gueldenstaedtii × Acipenser baerii) grown in cages in the Volga delta
Authors:   Astrakhan State University, Russia, Astafyeva Svetlana Sergeevna , Lozovskiy Alexander Robertovich ,   Astrakhan State University, Russia
Published: May 2022

Three-year-olds (15 individuals) and six-year-olds (15 individuals) of the hybrid Russian sturgeon × Siberian sturgeon (Acipenser gueldenstaedtii × Acipenser baerii), grown in net cages in the Volga delta, were studied at the end of the fishbreeding season in order to establish the functional state of the body according to a set of indicators of the erythron and metabolism. The results of the study revealed that the erythron system in six-year-old ROLO hybrids is characterized by a lower content of erythrocytes and blood hemoglobin (0.37±0.02 × 10¹²/l and 51.32±1.38 g/l, respectively), compared with three-year-olds (0.47±0.03 × 10¹²/l and 59.08±2.38 g/l, respectively) (p < 0.05). The content of serum iron in the groups of three-year-olds and six-year-olds did not differ (15.05±0.62 and 14.63±0.42 µmol/l, respectively) (p > 0.05). It has been established that indicators of protein metabolism in ROLO have age-related features. Thus, six-year-old hybrids have a higher level of whey protein content (39.3±1.34 g/l) and AST activity (4.71±0.11 µkat/l), but a lower level of ALT activity (1.67±0.18 µkat/l), compared with three-year-olds, in which the average values of these indicators were, respectively, 31.84±0.92 g/l, 3.05±0.39 and 2.58±0.16 mkat/l. Age differences were also found in the study of lipid metabolism. In the group of six-year-olds, the cholesterol content was lower than in three-year-olds (1.67±0.11 and 2.05±0.1 mmol/l, respectively) (p > 0.05). But the content of serum triglycerides did not differ significantly, only a tendency to a higher level of this indicator in six-year-olds compared to three-year-olds was noted (3.07±0.14 and 2.28±0.11 mmol/l, respectively). When studying carbohydrate metabolism, a higher level of glycemia was found in the group of six-year-olds compared to three-year-olds: 2.52±0.16 and 1.68±0.15 mmol/l, respectively (p > 0.05). The pronounced variability of the glycemia index in both groups is characteristic — the coefficient of variation was at the level of 25.3–33.6%. The established parameters of variation and age specificity of indicators of the erythron system, protein, lipid and carbohydrate metabolism can be used in assessing the state of physiological adaptation of the ROLO hybrid at the end of the growing period in cages in the Volga delta.
Fournier gangrene with concurrent multifocal necrotizing fasciitis: a systematic review and case report
Authors: Paynter Jessica A. , Qin Kirby R. , Situ Dongrong , Lee Chun Hin Angus
Published: May 2022

Purpose: A patient presented to a regional surgical center with Fournier gangrene (FG) and concurrent multifocal necrotizing fasciitis (NF). Given the rarity, it was decided to undertake a systematic review to investigate the incidence and prevalence of FG with multifocal NF and consequently determine the treatment and approach to management of such presentation.Methods: Firstly, the report of the 56-year-old male patient is discussed regarding his surgical management. Secondly, a systematic review was undertaken according to PRISMA guidelines using MEDLINE, Scopus, and Embase databases. Searches used the following MeSH terms: (“fournier’s gangrene”) AND ((necrotising fasciitis) OR (necrotising soft tissue infection)). Once the search results were obtained, duplicate articles were removed. Titles, abstracts, and articles were reviewed by 2 authors.Results: The search strategy using the 3 databases revealed a total of 402 studies. Fifty-seven studies were removed due to duplication. A total of 345 records were screened via title and abstract, of which 115 were excluded. Two hundred and thirty studies were reviewed for eligibility. A total of all 230 studies were excluded; 169 were excluded as they included the incorrect patient population (patients suffered from FG or NF, but not both collectively), 60 studies were excluded due to incorrect study designs, and 1 report occurred in the wrong setting.Conclusion: This highlights that while being a relatively known, uncommon infection both FG and NF are well documented separately within the literature. However, FG with concurrent multifocal NF has not been documented within the literature.
Dietary fibre prevalence and its role in human nutrition
Authors: Csatári Gábor , Kovács Szilvia
Published: May 2022

The role of dietary fibre and its impact on health is increasing. It is worth noting that their beneficial effects on the body are becoming more widely known, but their consumption is still below the recommended daily intake from food. Dietary fibre, as a class of compounds, includes a mixture of plant carbohydrate polymers, both oligosaccharides and polysaccharides. Dietary fibre has been linked to a number of diseases, as its consumption can reduce the risk of cardiovascular disease and type 2 diabetes. They influence the composition of the bacteria present in the human gut. Consuming the right quantity and quality of dietary fibre can play a role in the prevention of certain types of cancer. Nowadays, it is common to produce various fibre-enriched foods, called functional foods, because of the beneficial effects they have previously had on the body. In the present work we want to give a general description of dietary fibre and its role in the body.
Ki-67 proliferative index in kidney biopsies of lupus nephritis patients: a preliminary study
Authors: Mowla Karim , Emami Elham , Biglari Abhari Maryam , Zununi Vahed Sepideh , Mubarak Muhammed , Bahadoram Mohammad , Maghsoudi Ahmad Reza , Nasri Hamid , Hooshyar Niloufar
Published: May 2022

Introduction: Systemic lupus erythematosus (SLE) is a systemic autoimmune disease that involves multiple organs including the kidneys, skin, joints and serous membranes. Previous studies have shown that elevated Ki-67 indices are correlated with the cellular proliferation and clinical findings in lupus nephritis (LN). Objectives: The aim of this study was to examine the relationship between glomerular, tubular and interstitial expression of Ki-67 in kidney biopsy specimens of different classes of LN and and various clinicopathological features. Patients and Methods: This cross-sectional study was conducted on 16 biopsy-proven LN patients. The diagnosis of LN was based on renal biopsy findings, particularly by immunofluorescence (IF) study. The diagnosis of LN with IF was concluded by the deposition of C1q in association with prominent IgG and C3 deposits and the deposition of IgM and IgA (full-house pattern). The morphologic variables on light microscopy were also examined. In this study, the glomerular (gKi-67), interstitial (iKi-67) and tubular (tKi-67) expressions of Ki-67 were assessed. Results: This study comprised of 16 cases of biopsy-proven LN which were stained for Ki-67 with immunohistochemistry. Of the 16 patients, 13 (81.2%) were females. The mean ± SD of age, quantity of proteinuria and serum creatinine in all patients were 37±11.6 years, 1844±582 mg/d and 1.5±0.93 mg/ dL, respectively. Our study showed that the association between gKi-67, iKi-67, and tKi-67 with age, gender, level of proteinuria and serum creatinine was not significant (P>0.05). The association between Ki-67 with interstitial fibrosis, the number of crescents, and the activity and chronicity percentages was also not significant (P>0.05). Moreover, the relationship of gKi-67 with global versus segmental involvement of the glomeruli was not significant (P>0.05). Furthermore, the correlation of gKi-67 with IgA, IgG, IgM, C3 and C1q deposits was not significant (P>0.05). The association of iKi-67 with age, gender, level of proteinuria and serum creatinine was not significant as well. However, the correlation of iKi-67 with C1q deposits was inversely significant (r=-0.544, P=0.029); however this correlation was not significant with IgA, IgG, IgM and C3 deposits (P>0.05). Conclusion: In this study, the relationship of iKi-67 with C1q deposits suggests that C1q has a significant role in the inflammatory process of LN. Since our study was conducted on a relatively small sample size, it, therefore, requires further investigations on larger samples.
Administration of finerenone in chronic kidney disease
Authors: Akhavan Sepahi Mohsen , Emami Elham , Joseph Akshaya Ann , Hassanzadeh Shakiba , Razavi Mohammad Reza
Published: May 2022

Spironolactone is a first-generation and non-selective mineralocorticoid receptor antagonist (MRA). It is extensively well-studied and recommended due to increased accessibility for patients. Unfortunately, it is often discontinued in several cases due to its association with hyperkalemia. The apparent benefit of eplerenone over spironolactone is its mineralocorticoid receptor (MR) selectivity. However, it is also characterized by low-potency and higher cost compared to spironolactone. The high adverse-effect profile of spironolactone and eplerenone has led to the innovation of novel medications such as non-steroidal MRAs. Among these medications, finerenone is the most advanced agent. Finerenone is associated with decreased proteinuria, reduced risk of hyperkalemia and increased preservation of renal function with comparable benefit in heart failure compared to selective and nonselective MRAs. The nonsteroidal structure of finerenone affects mineralocorticoid receptor binding, lipophilicity and polarity which have potent effects on distribution, the degree of attachment to blood proteins, transportation, and tissue diffusion.
A histopathological study on the effects of atorvastatin against gentamicin-induced renal injury
Authors: Emami Elham , Hasanpour Dehkordi Ali , Maghsoudi Ahmadreza , Nasri Hamid , Vahedi Alireza
Published: May 2022

Introduction: Gentamicin is an aminoglycoside antibiotic that is widely administered to treat infections caused by gram-negative bacteria. Gentamicin may cause renal injury in patients after seven days of administration. Atorvastatin is a cholesterol-lowering statin that acts through the mevalonate pathway. Objectives: In this study, we investigated the histopathological effects of atorvastatin against gentamicin-induced renal injury. Materials and Methods: Twenty male Wistar rats were randomly assigned into five groups and treated as the following; group 1 (normal group, no drug), group 2 [gentamicin group, daily 80 mg/kg, intra-peritoneal (i.p.) for 7 days], groups 3 to 5 (gentamicin 80 mg/kg + atorvastatin at doses of 5, 25 and 75 mg/kg, respectively). Kidney sections were examined for histopathological parameters including vacuolization of the kidney tubular cells, degeneration, necrosis, flattening of the tubular cells and debris in the tubular lumen. Results: Compared to the normal group, gentamicin significantly exacerbated the histopathological parameters. Treatment with atorvastatin significantly decreased vacuolization, degeneration, necrosis and debris in the nephrotoxic rats. Conclusion: The findings of this research indicated that atorvastatin therapy can ameliorate histopathological renal injury following gentamicin injection.
COVID-19 SALGININDA HASTALIK KORKU DURUMLARININ X, Y VE Z NESİLLERİ ÜZERİNDEKİ ETKİSİNİN İNCELENMESİ
Authors: Ünal Egemen , Gökler Mehmet Enes , Tunc Ugur Dilek , Mollahaliloğlu Salih
Published: May 2022

COVID-19 salgınının fiziksel etkileri dışında ruh sağlığını etkilediği ve özellikle sağlık ile ilgili kaygıları ortaya çıkardığı belirtilmektedir. Bu etki yaş grupları arasında farklılıklar gösterebilmektedir. Bu çalışmanın amacı da COVID-19 salgınında hastalık korkusunun X, Y, Z nesilleri üzerindeki etkilerini araştırmak olarak belirlenmiştir. Çalışmamızdaki veri toplama araçlarımız arasında; araştırmacılar tarafından oluşturulan bireylerin sosyodemografik, mesleki, eğitim düzeyi, alışkanlıklar ve hastalıklara karşı önlem alma davranışlarını içeren 21 sorudan oluşan sosyodemografik veri formu, Kovid-19 Korku Ölçeği (K19K Ölçeği) ve Depresyon, Anksiyete ve Stres Ölçeği-21 (DAS-21) bulunmaktadır. Çalışma grubunda yer alan 1131 katılımcının %62,2’si (n: 703) kadın olup yaşları ortalama 35,07±10,88 (değerleri arasında 18-74) yıl idi. Çalışma grubunun K19K Ölçeğinden aldıkları puanlar ile nesillerin ilişkisi incelendiğinde Y neslinin X ve Z nesline göre daha yüksek korku yaşadığı görüldü. Ayrıca Z ve Y neslinin X nesline göre daha yüksek depresyon, Y neslinin Z nesline göre daha yüksek anksiyete ve Z ve Y neslinin X nesline göre daha yüksek stres puanı aldığı tespit edildi. COVID-19 salgınında hastalık korkusunun ve depresyon, anksiyete duygularının X, Y, Z nesilleri üzerindeki etkileri farklılıklar göstermektedir. Bu durum ileriki dönemlerde gelişecek salgınlar ve diğer katastrofik olaylara toplumun farklı yaş gruplarında yer alan bireylerin tepki ve korku durumlarını kestirebilmek ve halk sağlığı adına koruyucu uygulamaların planlaması adına yararlı olabilir.
A Feedback Linearization Approach for Coordinated Traffic Flow Management in Highway Systems
Authors: Chavoshi Kimia , Kouvelas Anastasios
Published: May 2022

This paper aims to develop a traffic control approach that provides an
optimal real-time solution for large-scale highway networks. The traffic
flow model’s nonlinearity is the main reason for the complex optimization
problems that consequently require high computational effort. Feedback
linearization is a well-known approach in nonlinear systems control. It
can provide an exact linear representation of the original nonlinear
system. Thus, it facilitates further steps in the controller design. This
research combines the feedback linearization method and linear MPC to
simultaneously guarantee optimal performance and real-time feasibility.
While developing feedback linearization for METANET model, we
discovered a pattern that describes the expansion of the control signals
(ramp metering and variable speed limits) and disturbances effects
through the highway networks. Utilizing this pattern, we design a generic
feedback linearization control law for METANET model. The control law
provides the key connection between the linearized and original model.
Finally, we complete the methodology by employing a linear MPC to
regulate the linearized model. The performance of the designed method
is evaluated by conducting comprehensive simulation studies, including a
large-scale network. The simulation results are promising. Eventually,
comparing the developed methodology with an equivalent nonlinear MPC
verifies a substantial improvement in computational costs.
Physical Work Environment and Workers’ Productivity in Selected Small and Medium Scale Enterprises in Umuahia, Abia State, Nigeria
Authors: Chukwuma Nnenna Nancy
Published: May 2022

The purpose of this study is to empirically examine the relationship between physical work environment and worker’s productivity of selected small and medium scale enterprises in Oyo, state. Two objectives and hypotheses each were formulated for the study. Data was acquired through the administration of a structured questionnaire that highlighted some of the factors related to influence of the workplace on employee productivity. This was administered to one hundred and twenty (120) workers randomly selected from a population of One Hundred (100) SMEs in Oyo state. One hundred and sixteen (116) workers responded. Respondents were from various categories ranging from frontline production, marketing, sales and administrative personnel. The data was analyzed using descriptive and inferential statistics The results of the study reveal that there was a statistically significant correlation between physical environment/ ergonomics of the workplace and productivity of small- scale enterprises with the value equal to r (116) =.296, p<.0.05.. Similarly, there was a statistically significant positive correlation between social interaction in the workplace and productivity with the value equal to r (116) =.663, p<.05. Based on the findings, it was concluded from the study that the two variables tested have relative noteworthy impacts on the productivity of workers in Oyo State. The study recommends that i. If at all possible, changes should be included into the design and layout to adjust the location to suit different types of personnel.
Association between Melasma Depression and Anxiety a Cross-Sectional Study in MMC Hospital Mardan, Pakistan
Authors: Ali Amjad , Zeb Shah , Abbas Muhammad , Gul Ijaz , Khan Muhammad Arif , Ikramullah Qazi , Qazi Zia Ullah
Published: May 2022

Introduction: Melasma impacts the psychological and emotional well-being of patients. It hurts patients' quality of life. Melasma is associated with significant depression and anxiety. More studies with larger sample sizes are needed to find psychiatric morbidity in melasma patients. Aim and Objective: The study's objective was to determine the incidence of depression in melasma patients, let alone correlate. A Cross-sectional study was conducted in the Department of Medical & Psychiatry Unit at MMC Hospital Mardan, Pakistan, To determine the frequency of Melasma in patients. Settings and Design: The Department of Medical Unit, MMC Hospital, Mardan, Pakistan, duration of study 6 months from 1/09/2021 to 03/3/2022, collaborated on this analysis. The study included all melasma patients who visited a Medical OPD during the study period. Methods and Material: The institutional ethics committee approved the study protocol. A specially designed Sociodemographic Performa clinical profile sheet was used to interview patients. Patients who refused to give their consent or who were already receiving depression treatment were excluded from the study. Statistical analysis: Data Performa were stored and analyzed in SPSS version 24. Mean + SD were calculated for quantitative variables like age, height, weight, BMI, and duration of symptoms. Results: Out of 223 patients, 200 were females, and 23 were males among the 223 patients. The average age of the participants in the study was 30.12 years. The illness lasted an average of 24 months. Thirty percent of the patients were depressed. Anxiety was present in 34.2 percent of the patients. Only one patient had severe anxiety, and most of the patients had mild to moderate anxiety. Age, education, and marital status were statistically significant associations with depression, while age, gender, and marital status were statistically significant associations with anxiety. Conclusions: Patients with Melasma are more likely to .............
Experiencias en cuidadores de adultos mayores con diabetes mellitus tipo 2 durante la pandemia COVID-19
Authors: Catalán Gómez Carlos Alberto , Guevara-Valtier Milton Carlos , Reyna-Ávila Leticia , Cárdenas-Villareal Velia Margarita , Paz Morales María de los Ángeles
Published: May 2022

Introducción: En la actualidad la presencia de la pandemia por COVID-19 ha impactado en toda la población, afectando con mayor medida a las personas con enfermedades crónicas como la diabetes mellitus tipo 2, lo que implica una mayor carga para sus principales cuidadores. Objetivo: Identificar las experiencias en cuidadores de adultos mayores con diabetes mellitus tipo 2 durante la pandemia COVID-19. Metodología: Estudio cualitativo descriptivo de tipo fenomenológico fundamentado en la experiencia vivida y percepciones de siete cuidadores mayores de 18 años de pacientes con diabetes mellitus tipo 2, se aplicó entrevista estructurada en seis dimensiones, los datos se analizaron con el programa estadístico Atlas Ti versión 7.0, el estudio se apegó a lo establecido en la Ley General de Salud en Materia de Investigación para la Salud. Resultados: Los cuidadores reportaron tener una edad entre 18 y 40 años, en su mayoría hombres, la antigüedad de cuidado osciló entre 1 a 20 años, en cuanto al  manejo de la información manifestaron desconocimiento hacia los cuidados, respecto a la experiencia negativa en el cuidado en tiempos de pandemia los cuidadores percibieron situaciones de estrés y generación de estrategias para el afrontamiento ante el confinamiento, en el entorno social prevaleció el estrés y ansiedad, respecto al sentimiento de satisfacción con el cuidado mencionaron estar satisfechos. Conclusión: Se identificó una experiencia difícil, frustrante, horrible, inquietante, terrible y desesperante en época de la pandemia por COVID-19, además existió falta de atención hacia los cuidadores quienes son propensos a sufrir algún trastorno por sobrecarga.
Role of Agroforestry on Farmland Productivity in Semi-arid Farming Regions of Zimbabwe
Authors: Parwada Cosmas , Chipomho Justin , Mapope Nyamande , Masama Edmore , Simango Kennedy
Published: May 2022

Farmland productivity is low in the semi-arid regions (NR IV and V) of Zimbabwe due to desertification and land degradation. Nevertheless, demand for food is increasing geometrically hence the need to increase output per unit area. Agroforestry (AF) which is an ecologically based and dynamic system that integrates multi-purpose trees on farms can increase productivity and offer resilience to climate change vagaries. However, the role of AF in Zimbabwean smallholder farming systems is still not well investigated. Therefore, this review explores the role of agroforestry on agricultural productivity in the semi-arid regions of Zimbabwe. The aim was to enhance sustainable food security among the rural poor through sustainable agriculture. Incorporating multi-purpose trees on agricultural lands can significantly restore soil productivity and offer soil resilience to erosion by water and wind. If well implemented, the AF can be a viable option in mitigating the impacts of drought on agriculture in these drier and marginalized areas.
Metal-Organic-Frames (MOFs) Based Electrochemical Sensors for Sensing Heavy Metal Contaminated Liquid Effluents: A Review
Authors: Shukla Pragati , Mishra Archana , Manivanna S. , Mandal D.
Published: May 2022

Toxic heavy metal ions may have adverse health effects on human health. sensing and effective removal is an important issue. Metal-organic frameworks (MOFs) are a novel group of crystalline porous materials. Because of their extremely high surface areas, optimized pore volumes and pore size distributions for specific detection, electrochemical sensors based on MOF's are gaining popularity. They are reliable, easy to use and have good sensitivity. This review will give an insight into the selection of MOF's as heavy metal sensing devices and the mechanism behind the detection of specific metal ions shall also be explained. Challenges and prospects for practical applications of MOFs in heavy metal ion detection will be also discussed.
Las amenazas a la libertad en un sistema Republicano y el rol del tribunal constitucional
Authors: Rosales Marroquín Luis Alfonso
Published: May 2022

Transcripción de la participación del magistrado Rosales Marroquín en el panel “Las amenazas a la libertad en un Sistema Republicano y el rol del Tribunal Constitucional” realizado el día jueves 23 de septiembre de 2021 en el marco del Congreso Internacional de Derecho Constitucional “El Rol de los Tribunales Constitucionales en un Sistema Republicano de Gobierno”.
Ageism and disaster situations - The case of Covid-19: A scoping review
Authors:   University of Haifa, Friedman Yuval , Doron Israel (Issi)
Published: May 2022

Review question / Objective: What is, and how is it expressed, the interaction between the phenomenon of ageism and society's attitude and coping with a disaster situation, such as the Cuvid-19 pandemic in the professional literature? Condition being studied: The covid-19 pandemic is a type of disaster situation, as the impact of pandemics is similar to the impact of other disasters in several respects: a wide range of impact affecting society as a whole, and an increase in uncertainty and long range of impacts. At the same time, pandemics stand out as being a pervasive, unavoidable and invisible danger (Pappas et al., 2009), and this characteristic blocks us from the usual methods that can allow us to regain a sense of control. It can be said that this complex reality has led to a recognition of the need for a deeper understanding of the interaction between the reality of disaster situations (or in this case - a disaster event in the form of a global pandemic), and the phenomenon of ageism, as well as the status and place of older persons in society.
PENCEGAHAN PERGAULAN BEBAS MELALUI PENINGKATAN PEMAHAMAN REPRODUKSI DI SMA MUHAMMADIYAH 4 KENDAL
Authors: Fatikhah Fatikhah , Munawaroh Siti
Published: May 2022

Worldwide, in 1997, it was estimated that more than 15 million young girls aged 15-19 years gave birth, 4 million of whom performed unsafe abortions and nearly 100 million teenager were affected by STIs. Globally, data obtained from 40% of total HIV cases occur in young people aged 15-24 years or it is estimated that more than 7,000 adolescene were infected with HIV every day. Puberty is the right target to be the object of reproductive health education. This activity . was carried out in April 2020. The focus of the activity was to increase students' understanding of SMA Muhammadiyah Kendal towards healthy reproduction so that adolescents have a wider view of reproduction and protect themselves from adolescent problems. There is an increase in adolescents' understanding of reproductive health, before presentation of this material the result was 57%, after the presentation of the material the participants' understanding increased to 97.05%. The response of adolescents is very good, the enthusiasm of adolescents to understand is quite high. This encourages adolescents to understand the importance of maintaining reproduction to prevent various impacts, such as sexually transmitted diseases, unwanted pregnancies and various other sexual diseases.
On the Dayside Atmosphere of WASP-12b
Authors: Himes Michael D. , Harrington Joseph
Published: May 2022

The atmospheric structure of WASP-12b has been hotly contested for years, with disagreements on the presence of a thermal inversion as well as the carbon-to-oxygen ratio, C/O, due to retrieved abundances of H2O, CO2, and other included species such as HCN and C2H2. Previously, these difficult-to-diagnose discrepancies have been attributed to model differences; assumptions in these models were thought to drive retrievals toward different answers. Here, we show that some of these differences are independent of model assumptions and are instead due to subtle differences in the inputs, such as the eclipse depths and line-list databases. We replicate previously published retrievals and find that the retrieved results are data driven and are mostly unaffected by the addition of species such as HCN and C2H2. We also propose a new physically motivated model that takes into consideration the formation of H− via the thermal dissociation of H2O and H2 at the temperatures reached in the dayside atmosphere of WASP-12b, but the data’s current resolution does not support its inclusion in the atmospheric model. This study raises the concern that other exoplanet retrievals may be similarly sensitive to slight changes in the input data.
A Detection of H2 in a High-velocity Cloud toward the Large Magellanic Cloud
Authors: Tchernyshyov Kirill
Published: May 2022

This work presents a new detection of H2 absorption arising in a high-velocity cloud associated with either the Milky Way or the Large Magellanic Cloud (LMC). The absorber was found in an archival Far Ultraviolet Spectroscopic Explorer spectrum of the LMC star Sk-70°32. This is the fifth well-characterized H2 absorber to be found in the Milky Way’s halo and the second such absorber outside the Magellanic Stream and Bridge. The absorber has a local standard of rest central velocity of +140 km s−1 and a H2 column density of 1017.5 cm−2. It is most likely part of a cool and relatively dense inclusion (T ≈ 75 K, n
H ∼ 100 cm−3) in a warmer and more diffuse halo cloud. This halo cloud may be part of a still-rising Milky Way Galactic fountain flow or an outflow from the Large Magellanic Cloud.
Accretion Disk Outflow during the X-Ray Flare of the Super-Eddington Active Nucleus of I Zwicky 1
Authors: Ding Yuanze , Li Ruancun , Ho Luis C. , Ricci Claudio
Published: May 2022

We present a detailed X-ray spectral analysis of the narrow-line Seyfert 1 galaxy I Zwicky 1, for which a sequence of X-ray flares were detected during a long, simultaneous observation acquired with XMM-Newton and NuSTAR. We determine the key parameters of the inner accretion disk and hot corona in the context of the disk reflection model, which successfully captures the evolution of the X-ray corona during the X-ray flare. Using a thermal Comptonization continuum model, we confirm that the corona rapidly cooled from ∼200 to ∼15 keV, likely a consequence of strong pair production and runaway in a disk-like corona during the X-ray flare, when the nonthermal electron fraction rapidly increased. We detect multiple variable blueshifted absorption features arising from outflowing material along the line of sight to I Zwicky 1, which we associated with ionized winds and ultrafast outflows. One of the ionized winds may be newly launched just after the X-ray flare. During the 5 days of NuSTAR observations, the ionization state and velocity of these outflows followed a relation of the form ξ ∼ v

w

3.24, as expected from a super-Eddington wind. Comparison with molecular gas and warm ionized gas observations suggests that the kinematics of the ionized winds are consistent with a sufficiently cooled, momentum-driven outflow. Considering the dynamical feedback from these outflows can account for the significantly undermassive black hole in I Zwicky 1.
A Very Long Baseline Array Trigonometric Parallax for RR Aql and the Mira Period–Luminosity Relation
Authors: Sun Yan , Zhang Bo , Reid Mark J. , Xu Shuangjing , Wen Shiming , Zhang Jingdong , Zheng Xingwu
Published: May 2022

We report Very Long Baseline Array observations of 22 GHz H2O and 43 GHz SiO masers toward the Mira variable RR Aql. By fitting the SiO maser emission to a circular ring, we estimate the absolute stellar position of RR Aql and find agreement with Gaia astrometry to within the joint uncertainty of ≈1 mas. Using the maser astrometry we measure a stellar parallax of 2.44 ± 0.07 mas, corresponding to a distance of

410

−
11

+
12

pc. The maser parallax deviates significantly from the Gaia EDR3 parallax of 1.95 ± 0.11 mas, indicating a 3.8σ tension between radio and optical measurements. This tension is most likely caused by optical photocenter variations limiting the Gaia astrometric accuracy for this Mira variable. Combining infrared magnitudes with parallaxes for RR Aql and other Miras, we fit a period–luminosity relation using a Bayesian approach with Markov Chain Monte Carlo sampling and a strong prior for the slope of −3.60 ± 0.30 from the Large Magellanic Cloud. We find a K-band zero-point (defined at logP(days) = 2.30) of −6.79 ± 0.15 mag using very long baseline interferometry (VLBI) parallaxes and −7.08 ± 0.29 mag using Gaia parallaxes. The Gaia zero-point is statistically consistent with the more accurate VLBI value.
Flickering Returns as RS Oph Reestablishes Quiescent Conditions Following its 2021 Nova Outburst
Authors: Munari Ulisse , Tabacco Fulvio
Published: May 2022

RS Oph has persistently displayed flickering at optical wavelengths when observed away from its repeating nova outbursts. During the 2006 eruption the flickering disappeared, and this repeated during the recent 2021 event. We have been monitoring RS Oph looking for the reappearance of flickering at B-band following the 2021 outburst. The flickering was still absent (σ(B) < 0.002 mag) on day +210 (counted from nova optical maximum), appeared at σ(B) = 0.008 mag on day +224, and raised to σ(B) = 0.029 mag on day +250. On following dates the amplitude remained large, although fluctuating. The recovery of B-band quiescence brightness by RS Oph begun around day +225 and was completed by day +260. The parallel patterns followed by the rise in system brightness and the reappearance of flickering confirm the central role played in RS Oph by the return to pre-outburst conditions of the accretion disk and the refilling by the RG wind of the immediate circumstellar space.
Nobles normands appauvris au XIX e siècle, diversités des trajectoires
Authors: Ploquin-Claret Nathalie
Published: May 2022

Une étude du déclassement social au xix e  siècle a été réalisée grâce à l’analyse d’un corpus rassemblant plus de 5 000 lettres de demandes de secours émanant de l’élite de l’Ancien Régime. Il apparaît que les noblesses provinciales de l’Ouest de la France (en Normandie, en Bretagne et en Aquitaine) ont été particulièrement touchées par l’appauvrissement. 87 pétitionnaires de noblesse normande ont été identifiés et recherchés afin de comprendre leur trajectoire sociale. Les raisons du déclassement s’avèrent en majorité liées à la conjoncture politique, notamment révolutionnaire, mais elles sont dues aussi en large partie à des épreuves personnelles, qui, en se recoupant, témoignent de véritables faits sociaux. Des traits de l’Ancien Régime se perpétuent : les femmes, les branches cadettes des lignages sont davantage sujettes au déclin social. Des pétitionnaires normands écrivent depuis Paris, où ils vivent dans la pauvreté, bien qu’ils soient soutenus par les « enquêteurs sociaux ».
Multi-level stacking of LSTM recurrent models for predicting stock-market indices
Authors: Tfaily Fatima , Fouad Mohamad M.
Published: May 2022

The ability to predict stock-market indices is important to investors and financial decision-makers. However, the uncertainty of available information makes accurate prediction extremely challenging. In this work, we propose and validate a multi-level stacking model of long short-term memory (LSTM) units for the short-term prediction of stock-index closing prices. The proposed machine-learning model is trained using historical data to predict next-day closing prices. The first layer of the multi-level stacked structure contains an ensemble of recurrent LSTM models that receives time-series data of historic opening, closing, high and low prices for current and previous days and outputs predictions about the next day's closing prices. The second and third layers consist of stacked multi-layer perceptron meta-models. We validated the new model on two stock indices, demonstrating its advantages over single-LSTM models. We also compared its performance against several extant statistical and machine-learning models on a subset of Standard & Poor's 500 index data between 2000 and 2016 using correlation and statistical metrics.
Experimental investigation and exergy and energy analysis of a forced convection solar fish dryer integrated with thermal energy storage
Authors: Embiale Dessie Tadele , Gunjo Dawit Gudeta , Venkatachalam Chandraprabu , Parthiban Mohanram
Published: May 2022

Drying is an effective means of reducing post-harvest losses which increases the shelf life of products by reducing their moisture content to a safe storage level. An indirect mode forced convection solar dryer integrated with thermal energy storage was designed, developed and experimentally tested by drying fish. The components of the dryer are a double pass solar air heater, a paraffin wax-based shell and tube for latent heat thermal energy storage, a drying chamber and a blower. A maximum temperature of 69 ℃ was obtained at the outlet of the solar air heater, and the energy and exergy efficiencies were 25% and 1.5%, respectively. The latent heat storage reduces the fluctuations in the outlet temperature of the solar air heater and extends the drying process for two extra hours per day. The average energy and exergy efficiencies of the energy storage were 41.9% and 15.6%, respectively, whereas average energy and exergy efficiencies of the drying chamber were 35% and 52%, respectively. Moreover, 5 kg of fresh fish was effectively dried in the dryer within 21 hrs, reducing the moisture content of the fish from 75% to 12.5% by removing 3.57 kg of moisture. The specific energy consumption of the dryer was 7.3 kWh per kilogram of moisture, and the power consumed by the blower was 0.6 kWh per kilogram of moisture, which is 8.3% of the total energy consumption. The remaining 91.7% of the energy is harvested from the sun, and the overall efficiency of the drying system is 9.4%.
Hilfer iterated-integro-differential equations and boundary conditions
Authors: Theswan Sunisa , Samadi Ayub , Ntouyas Sotiris K. , Tariboon Jessada
Published: May 2022

In this research, a new class of fractional boundary value problems is introduced and studied, which combine Hilfer fractional derivatives with iterated Riemann-Liouville and Hadamard fractional integrals boundary conditions. Existence and uniqueness results are obtained by using standard tools from fixed point theory. The obtained results are well illustrated by numerical examples.
Non-global nonlinear skew Lie triple derivations on factor von Neumann algebras
Authors: Kong Liang , Li Chao
Published: May 2022

Let $ \mathcal{A} $ be a factor von Neumann algebra acting on a complex Hilbert space $ H $ with dim $ \mathcal{A} > 1 $. We prove that if a map $ \delta: \mathcal{A}\rightarrow \mathcal{A} $ satisfies $ \delta([[A, B]_{\ast}, C]_{\ast}) = [[\delta(A), B]_{\ast}, C]_{\ast}+[[A, \delta(B)]_{\ast}, C]_{\ast} +[[A, B]_{\ast}, \delta(C)]_{\ast} $ for any $ A, B, C\in \mathcal{A} $ with $ A^{\ast}B^{\ast}C = 0 $, then $ \delta $ is an additive $ \ast $-derivation.