Basic Statistics Research Articles

Assessing Benzene and TVOC Pollution and the Carcinogenic and Noncarcinogenic Risks to Workers in an Industrial Plant in Southeastern Romania.

The article aims to analyze the pollution with Volatile Organic Compounds (VOC) emitted from the biggest refinery in Romania, using the daily and monthly series registered for two years in two sites on the industrial platform, and the carcinogenic and noncarcinogenic risks for workers at the industrial plant. Since the values of the basic statistics (minimum, maximum, and average) and outliers indicate that most recorded values exceed the maximum admissible limits established by law, the Peaks Over Threshold (POT) method was utilized to model the maximum values of the series and determine the return levels for benzene and total VOC (TVOC). Given the high values obtained for relatively short return periods, indicating potential danger for the workers, we assessed the noncarcinogenic and carcinogenic risks to benzene and TVOC exposure by computing the hazard index (HI) and lifetime cancer risk (LCR). The results indicate that 43.75% of the HI values are above 1, indicating a relatively high noncarcinogenic risk for different categories of workers. LRC indicates a high LRC for 93.75% of the workers in all considered categories exposed to TVOC.

Impact of Feedback on Vocabulary Improvement in Speaking Skills among Afghan EFL Learners

Improving one’s vocabulary skill is really important for advancing English language proficiency. Hence, this study was conducted by two lecturers from the English Department of the Education Faculty at Balkh University. Its intention is to determine how providing feedback helps Afghan EFL learners improve their vocabulary in speaking. To gather reliable data, we conducted an online survey by distributing an online questionnaire to our seventh-semester female students. These students were enrolled in the English Department of the Education Faculty at Balkh University. We sent the questionnaire to 20 students, which was designed using a four-point Likert Scale with options ranging from strongly agree to strongly disagree, consisting of 13 items. The questionnaire was crafted to gauge students' perceptions of the feedback they receive and how it contributes to their vocabulary improvement in speaking. After collecting the data, we analyzed it using basic descriptive statistics. The results indicate that students prefer receiving feedback from their teachers and are keen to identify their mistakes and enhance their vocabulary. While some students expressed interest in receiving feedback during speaking activities, others were opposed to it, as they believed that receiving feedback during speaking could be detrimental and lead to hesitation.

"I Was Told to Think Like a Middle-Aged White Woman": A Survey on Identity and the Association of Social Work Boards Exam.

The release of the 2022 Association of Social Work Boards (ASWB) exam passage rate report confirmed what many test takers who failed their exam believe. The ASWB exams are biased, with differential passage rates based on the test taker's race, age, and "English as a second language" status. However, the report only offered basic descriptive statistics and lacked insight into the test takers' experience. The present study addresses this gap. Results are from a 2022 survey of individuals who had taken the ASWB master's level licensing exam (N = 1,045) highlighting test taker identity and experience. Thirty percent of the study sample identified as neurodivergent, 29.1 percent as primary caregivers, and 27.1 percent as Black, Indigenous, or persons of color. White respondents had the highest first-attempt passing rates (95.7 percent), followed by Latinx and Black respondents (84.9 percent and 78.2 percent, respectively). Forty-four respondents reported taking the test three or more times before passing. Among this group, 52 percent identified as Black, 25 percent as White, and 18 percent as Latinx. Respondents were asked how they felt their identity impacted their experience, and three interrelated themes emerged: privilege, challenges, and critique of the exam. Respondents discussed the impact of having or not having privilege; the emotional, physical, and financial challenges of preparing for the exam; and the ways in which they experienced the exam as biased.

Understanding the variation in offender behaviour and risk factors in cases of homicide perpetrated against the UK homeless population between the years 2000 and 2022

AbstractThe homeless population remains understudied, and their victimisation is unreported, especially homeless victims of homicide. With the number of people faced with homelessness increasing, the heightened rates of victimisation for violent crimes throughout this population becomes even more concerning. A review of the literature revealed an absence of meaningful research beyond basic descriptive statistics of rates of homeless homicide in the UK. The current study explores the behavioural variation and risk factors associated with the victims and perpetrators of 19 cases of homeless homicide in the UK. A content analysis was first conducted to derive 22 case variables. Smallest Space Analysis was then employed to analyse the cases according to the variables selected. The themes produced in the SSA output were comparable to that of Canter's Victim Role Model: Victim as Object, Victim as Person and Victim as Vehicle. The current study lays a foundation for developing an understanding of the variation in behaviour across cases of homeless homicide and may serve to inform preventative measures.

The relationship between renal and retinal parameters in uncomplicated hypertension in middle-aged people

Background. Controlled arterial hypertension (HTN) does not mean complete regression of preclinical target organ damage. Objective. To study the relationship between indicators characterizing the structural and functional state of the kidneys and retina in middle-aged patients with uncomplicated HTN, receiving combination antihypertensive therapy (AHT) and having office systolic (SBP) and diastolic (DBP) blood pressure levels < 140 and < 90 mmHg. Design and methods. We examined 87 patients (65 males and 22 females, average age 50,5 ± 4,87 years) with stage I and II HTN without clinically significant concomitant pathology taking double combined AHT (group average office level of SBP and DBP 134 ± 12,3 and 84 ± 14,5 mmHg, respectively). For at least the previous 12 months, patients had regularly received voluntary dual combination AHT based on pharmacological blockade of the renin-angiotensin-aldosterone system. HTN patients underwent a comprehensive assessment of the structural and functional state of the kidneys and fundus of the eye. To assess the relationships between biomarkers of kidney and retinal damage in the examined individuals within the entire set of studied parameters, correlation analysis and comparative analysis of the same quantitative (renal or retinal) indicators were used in subgroups of individuals divided according to a conditionally selected qualitative characteristic corresponding to the norm or deviation from the norm (value central retinal arterial equivalent (CRAE ≥ or < 145 μm), central retinal venous equivalent (CRVE ≥ or < 227 μm), albumin-creatinine ratio (ACR ≥ or < 10 mg/g), foveal avascular zone area (FAZ ≥ or < 0,36 mm²). Statistical processing of data was carried out using the Basic Statistics / Tables modules of the application package Statistica for Windows (version 12). The relationship between quantitative renal and retinal indicators was studied using the Pearson r correlation coefficient. Comparative analysis of quantitative parameters within the examined group, conditionally subdivided according to a certain qualitative criterion, was performed using the nonparametric Mann-Whitney U-test. Results. CRVE values directly correlated with ACR (r = 0,30; p = 0,037), FAZ area — with ACR (r = 0,40; p = 0,005), subfoveal choroidal thickness (SCT) — with estimated glomerular filtration rate (eGFR) (r = 0,45; p = 0,001); CRAE values inversely correlated with serum urea (r = –0,34; p = 0,019), SCT — with serum creatinine (r = –0,36; p = 0,011). Patients with ACR ≥ 10 mg/g compared with patients with ACR < 10 mg/g were characterized by significantly lower values of the retinal arteriovenous ratio (0,646 ± 0,09 and 0,689 ± 0,08, respectively, p = 0,016). Patients with FAZ area ≥ 0,36 mm² compared with those with FAZ area < 0,36 mm² had higher proteinuria values (0,101 ± 0,13 and 0,075 ± 0,14 mg/g, respectively, p = 0,01). Conclusions. Middle-aged patients with uncomplicated HTN without clinically significant concomitant pathology, receiving double combined AHT, demonstrate significant associations of indicators characterizing the structural and functional state of the kidneys and retinal microcirculation in terms of their preclinical damage.

An ecological approach to the lexical evolution of Chinese English

Aims and objectives: Rooted in a contact-oriented stance, this study aims to approach the dynamic evolution of Chinese English lexis from the perspective of language ecology by seeking an ecological explanation of diachronic lexical change. Specifically, it attempts to investigate the division of labor between external and internal ecological factors motivating the evolutionary patterns of Chinese English lexis in the past 60 years. Methodology: A mixed-methods approach was adopted by combining meticulous coding of each lexical item and numerical calculation of the distribution of lexical manifestations on significant linguistic dimensions. Data collection and analysis: In terms of data collection, the Chinese English lexis was sourced coherently and longitudinally from Beijing Review (1958–2018). In terms of data analysis, a systematic analytical framework of five parameters (frequency, form, grammar, word formation, and semantics) was created before qualitatively charting the features and quantitatively calculating the statistics for the value of each parameter. Findings: Externally, ecological factors bear on lexical trends of all linguistic parameters except lexical forms; internally, system–internal interactions among lexical variants project congruent patterns of alignment among various sets of features of all parameters except grammar. Originality: Few studies have approached the Chinese English lexis from the diachronic perspective through the lens of language evolution based on coherently sourced data and systematic analytical procedures. Significance: The study is enlightening in providing basic statistics to permit comparisons of lexical evolution in the five linguistic parameters across Expanding Circle ecologies and in extending the evolutionary approach to language change to the lexical realm in the Chinese English context.

Development of an ultra-short measure of eight domains of health-related quality of life for research and clinical care: the patient-reported outcomes measurement information system® PROMIS®-16 profile.

We describe development of a short health-related quality of life measure, the patient-reported outcomes measurement information system® (PROMIS®)-16 Profile, which generates domain-specific scores for physical function, ability to participate in social roles and activities, anxiety, depression, sleep disturbance, pain interference, cognitive function, and fatigue. An empirical evaluation of 50 candidate PROMIS items and item pairs was conducted using data from a sample of 5775 respondents from Amazon's Mechanical Turk (MTurk). Results and item response theory information curves for a subset of item pairs were presented and discussed in a stakeholder meeting to narrow the candidate item sets. A survey of the stakeholders and 124 MTurk adults was conducted to solicit preferences among remaining candidate items and finalize the measure. Empirical evaluation showed minimal differences in basic descriptive statistics (e.g., means, correlations) and associations with the PROMIS-29 + 2 Profile, thus item pairs were further considered primarily based on item properties and content. Stakeholders discussed and identified subsets of candidate item pairs for six domains, and final item pairs were agreed upon for two domains. Final items were selected based on stakeholder and MTurk-respondent preferences. The PROMIS-16 profile generates eight domain scores with strong psychometric properties. The PROMIS-16 Profile provides an attractive brief measure of eight distinct domains of health-related quality of life, representing an ideal screening tool for clinical care, which can help clinicians quickly identify distinct areas of concern that may require further assessment and follow-up. Further research is needed to confirm and extend these findings.

Association of Use of a Mobile Tackling Dummy During College Football Practice With Reduced Sport-Related Concussion: Results of a Pilot Investigation.

Considering the multifaceted consequences of improperly managed sport-related concussions (SRCs) in American football, identifying efficacious prevention measures for enhancing player safety is crucial. To investigate the association of primary prevention measures (no-tackle practices and using a mobile tackling dummy in practice) with the frequency of SRCs within college football programs in the United States. Descriptive epidemiology study. In this pilot study, we analyzed the frequency of new SRCs recorded during various settings (total, in preseason, in season, in practice, and game) across 14 seasons (2007-2019 and 2021) for Dartmouth College and across 7 seasons (2013-2019) for the 7 other teams in the Ivy League men's athletic football conference. Trends between seasons and the number of SRCs sustained were examined using correlations and basic descriptive statistics. We also examined SRC frequency in relation to primary prevention measures (no-tackle practices, use of mobile tackling dummies during practice) in the Dartmouth College football program, and we compared SRCs with regard to the no-tackle practice policy in the other Ivy League teams. There was a statistically significant reduction in the number of SRCs over the seasons studied, with the strongest finding observed for Dartmouth College in-game SRCs (r = -0.52; P = .029). Relatedly, the strongest between-season effect was seen for the Dartmouth College practice policy on in-game SRCs (η2 = 0.510; P = .01). The use of mobile tackling dummies was found to be independently associated (adjusting for no-tackle practice) with a lower number total (β = -0.53; P = .049), in-season (β = -0.63; P = .023), and in-game (β = -0.79; P = .003) SRCs. While seasons with the no-tackle practice were not meaningfully associated with SRCs for Dartmouth College, stronger trends were observed in the other Ivy League teams, such that seasons with this policy were associated with lower SRC prevalence. Our data indicate that the use of the mobile tackling dummy in practice was related to the reduced number of SRCs sustained at multiple settings during the football season. To a lesser extent, the no-tackle practice policy was also associated with a reduced number of SRCs.

Age-specific transmission dynamics of SARS-CoV-2 during the first 2 years of the pandemic.

During its first 2 years, the SARS-CoV-2 pandemic manifested as multiple waves shaped by complex interactions between variants of concern, non-pharmaceutical interventions, and the immunological landscape of the population. Understanding how the age-specific epidemiology of SARS-CoV-2 has evolved throughout the pandemic is crucial for informing policy decisions. In this article, we aimed to develop an inference-based modeling approach to reconstruct the burden of true infections and hospital admissions in children, adolescents, and adults over the seven waves of four variants (wild-type, Alpha, Delta, and Omicron BA.1) during the first 2 years of the pandemic, using the Netherlands as the motivating example. We find that reported cases are a considerable underestimate and a generally poor predictor of true infection burden, especially because case reporting differs by age. The contribution of children and adolescents to total infection and hospitalization burden increased with successive variants and was largest during the Omicron BA.1 period. However, the ratio of hospitalizations to infections decreased with each subsequent variant in all age categories. Before the Delta period, almost all infections were primary infections occurring in naive individuals. During the Delta and Omicron BA.1 periods, primary infections were common in children but relatively rare in adults who experienced either reinfections or breakthrough infections. Our approach can be used to understand age-specific epidemiology through successive waves in other countries where random community surveys uncovering true SARS-CoV-2 dynamics are absent but basic surveillance and statistics data are available.

PELAKSANAAN PERKULIAHAN STATISTIKA DASAR DENGAN MODEL PROJECT BASED LEARNING

In digital era, students are expected to have 21st century skills to face global challenges. One of the learning models that support 21st century skills is Project Based Learning (PjBL). This research is descriptive research to describe the implementation of mathematics learning with the PjBL model in the Basic Statistics course. Fourteen students who took the Basic Statistics course were the subjects in this study. The project is a Basic Statistics project that integrates data presentation material, frequency distribution, centering measures, and data distribution measures. Data were collected using interviews, observations, self-assessment, oral presentation, peer review and final report. The implementation of learning is carried out online using google classroom, google form, zoom meeting and whatsapp group. The results of the implementation of mathematics learning with the PjBL model in the Basic Statistics course can be said to be good with an average score of 82.5. Of the fourteen students who worked on the project, five students or 36% had completed the project very well. A total of nine students or 64% have completed the math project well from the stages of planning, implementation and collecting reports. In this study, Information and Communication Technology (ICT) plays a very important role in the stages of design, implementation, and final report collection in project completion.

Treatment of Nutcracker Syndrome with Left Renal Vein Transposition and Endovascular Stenting

Nutcracker syndrome is a rare condition that occurs as a result of the entrapment of the left renal vein (LRV) between the aorta and the superior mesenteric artery. It is typically associated with symptoms such as left flank pain, hematuria, proteinuria, and pelvic congestion. The current treatment approach may be conservative in the presence of tolerable symptoms, and surgical or hybrid and stenting procedures in the order of priority in the presence of intolerable symptoms. The aim of this study is to review our experiences to evaluate the results of both methods in this series in which we have a greater tendency toward surgery instead of stenting. The clinical data of consecutive patients with nutcracker syndrome who underwent LRV transposition and LRV stenting between July 2019 and October 2023 were retrospectively reviewed. The patients were divided into 2 groups based on the methods of treatment: surgical and stenting. For procedure selection, LRV transposition was primarily recommended, with stenting offered to those who declined. Primary end points were morbidity and mortality. Secondary end points included late complications, patency, freedom from reintervention, and resolution of symptoms. Standard basic statistics and survival analysis methods were employed. Nineteen patients with nutcracker syndrome (female: 100%) were treated with LRV stentings (n=5) and LRV transposition (n=14). The mean age was 24 (20-27, interquartile range [IQR]) years. The mean follow-up was 23 (9-32, IQR) months. There were no major complications and mortality after both procedures. The most frequent sign and symptom associated with LRV entrapment were left flank pain 100% (n=19), proteinuria 88% (n=15), and hematuria 47% (n=9). The mean peak velocity ratio on Doppler ultrasound was 6.13 (6-6.44, IQR). Aortomesenteric angle, beak angle (beak sign), and mean diameter ratio on computed tomography were 26° (22.6-28.5, IQR), 25° (23.9-28, IQR), and 5.3 (5-6, IQR), respectively. Venous pressure measurements were only used to confirm the diagnosis in 5 patients in the stenting group. The measured renocaval gradient was 4 (3.9-4.4, IQR) mm Hg. After both procedures, the classical symptoms, including left flank pain, proteinuria, and hematuria, resolved in 89.5% (n=17), 57.8% (n=11), and 82.3% (n=15) of the cases, respectively. A total of 4 patients required reintervention, 3 patients after LRV transposition (occlusion, n=2; stenosis, n=1), and 1 patient after stenting (occlusion, n=1). The 1-year and 3-year primary patency for the 19 patients was 87% and 80%, respectively. Three-year primary-assisted patency was 100%. Similarly, the 1-year and 3-year freedom from reintervention rate was 83% and 72%, respectively. Additionally, the 1-year and 3-year primary patency for the surgical group was 91% and 81%, respectively, and the 1-year and 3-year primary patency for the stenting group was 75%. Nutcracker syndrome should be kept in mind in cases where flank pain and hematuria cannot be associated with kidney diseases. Radiographic evidence must be accompanied by serious symptoms to initiate the treatment of nutcracker syndrome with LRV transposition and endovascular stenting procedures. Both procedures, along with their respective advantages and disadvantages, can be preferred as primary treatments for nutcracker syndrome. Our study demonstrates that both procedures can be safely and effectively performed, yielding good outcomes.

Potentials of single nucleotide polymorphisms and genetic diversity studies at HSP90AB1 gene in Nigerian White Fulani, Muturu, and N'Dama cattle breeds.

The study was aimed at genetic characterization of Nigerian breeds of Muturu, N'Dama, and White Fulani cattle breeds at heat shock protein 90AB1 locus. Also, the goal of the study was to detect the presence of single nucleotide polymorphisms (SNPs) at HSP90AB1 locus and consequently recommend them as bio-markers for thermo-tolerance potentials in Nigerian cattle breeds when exposed to assaults of thermal conditions/heat shock of tropical environment. Based on the previously published potentials of this candidate gene to lower assaults of thermal conditions/heat shock such as heat stress, the detected SNPs of HSP90AB1 within the population of the Nigerian cattle in this study will be recommended for population-based screening with a view to genetically improving those zebu cattle breeds that are more vulnerable to heat shock and assaults of thermal conditions. Total number of 200 blood samples were randomly collected from White Fulani (84 samples), Muturu (73 samples), and N'Dama (43 samples) breeds of cattle. Out of these, 20 DNA samples were randomly selected from each of the three cattle breeds and were used for DNA extraction and downstream analyses to further confirm findings of previous study, hence the goal of our study. DNA was extracted from the blood samples using the Zymo-bead DNA extraction kit and DNA sequencing of our samples was performed. A total number of 9 SNPs (within exons 5-6 coding regions) and 11 SNPs (within exons 12-13 coding regions) were detected at HSP90AB1 locus using the codon code aligner software. ARLEQUIN 2.0001 software was used to estimate the basic population genetic statistics while the DnaSP version 5.10.01 was used to estimate the genetic diversity indices. This study detected new SNPs (polymorphic sites) at HSP90AB1 locus within the DNAs of Nigerian White Fulani (WF), Muturu (MU), and N'Dama (ND) breeds of cattle. Within exons 5-6 coding regions, the N'Dama (ND) cattle breed had the highest for number of SNPs (5) and genetic diversity indices while White Fulani (WF) and Muturu (MU) had the least (2) number of SNPs each. Within exons 12-13 coding regions, WF had the highest numbers of SNPs (7) and genetic diversity indices while MU had the least number of SNPs (1) and genetic diversity indices. Some of the detected SNPs at HSP90AB1 locus were shared among the three breeds, suggesting that these three Nigerian cattle breeds showed shared ancestral alleles and lineage. Our study further revealed that HSP90AB1 is highly polymorphic/variable and diverse among the three Nigerian cattle breeds examined. Based on the previously documented thermo-tolerance potentials of members of HSP90 sub-family including the findings of our study, we hypothesize therefore that the presence of SNPs of HSP90AB1 within the DNAs of these three breeds of Nigerian cattle (WF, ND, and MU) may confer them thermo-tolerance potentials for thermal assault conditions and heat shock of the tropics at HSP90AB1 locus. Therefore, the detected SNPs can be recommended as bio-markers to improve the thermo-tolerance potentials of Nigerian breeds of zebu cattle raised under the challenges of heat shock for better adaptation and survival.

Advancing EFL Writing Proficiency in Jordan: Addressing Challenges and Embedding Progressive Strategies

Considering the critical role of writing in EFL contexts, this study sets out to examine the writing skills of Jordanian EFL students, addressing both the challenges they encounter and the potential strategies for enhancing their capabilities. To achieve this, the researchers implemented two distinct methods of data collection: a survey and semi-structured interviews. The survey data were analysed utilizing basic descriptive statistics, while the interview data were examined based on Braun and Clarke’s (2006) thematic analysis framework. The participants in this study included 150 Jordanian EFL students majoring in English language across three public universities, alongside eight experienced EFL writing instructors. The results revealed a set of writing challenges confronted by the students, such as the struggle to compose grammatically accurate and coherent text. These difficulties originated from a variety of factors, notably a deficiency in linguistic knowledge and a lack of motivation. Moreover, the study emphasized the crucial influence of the teaching process, which holds the potential to impact the students' writing proficiency either positively or adversely. To address the challenges in EFL writing, this study has outlined potential strategies, encompassing effective instruction, the enrichment of students' linguistic knowledge, the integration of advanced technologies such as Artificial Intelligence (AI), and the encouragement of student motivation. Notably, the integration of AI tools emerges as a novel strategy with the potential to revolutionize teaching practices by offering personalized feedback and enhancing the learning experience. This research substantially contributes to the existing body of literature on EFL writing, revealing the specific challenges among Jordanian EFL students, and providing a comprehensive set of practical and innovative solutions for EFL writing instructors.

Investigation of the Current Situations Desired Conditions, and Essential Requirements for Participation in the Quality Assurance Processes of Small Schools Under the Office of the Basic Education Commission

The objective of this study is twofold: 1) To examine the current situations, desired conditions, and requirements for participation in quality assurance efforts of small schools under the Office of the Basic Education Commission. 2) To explore developmental guidelines for enhancing the quality assurance practices of these educational institutions. The research methodology involved: 1) surveying to assess the current situations, desired conditions, and essential requirements; and 2) investigating development guidelines embedded in the working processes of three schools with the best educational assurance practices. The sample groups included 385 persons who were school administrators and teachers. Research tools included a survey form, interview forms, and an assessment form, which was verified and approved by nine qualified individuals. Data analysis involved content validation and factor analysis. The statistics also indicated the correctness, appropriateness, feasibility, and utility of the information. The statistical techniques used in the research included basic statistics and the analysis of essential requirements. The findings of the study revealed the following:
 
 1) The current situation of the participation in educational quality assurance efforts of the small schools was rated at a moderate level, with the highest level of the desired conditions. An area of the requirements that was rated with the highest score of development priority was active participation in quality assurance.
 
 2) The developmental guidelines for quality assurance practices in educational institutions encompassed five domains with a total of 16 strategies. The experts’ evaluation of these domains indicated a high level of accuracy, while appropriateness, feasibility, and utility were scored at the highest level.

Prevalence of Acne and its Association with Stress in Female Medical Students

Background: Acne vulgaris is described as a chronic skin disease involving blockage and inflammation of pilosebaceous units. The objective of this study was to determine the prevalence of acne and its association with stress in female students. Methods: This is a cross-sectional study carried out at Rawalpindi Medical University. The study included female medical students of all five years of MBBS excluding lactating and pregnant females and the ones who were diagnosed with skin disorders other than acne. The sample size was 271. A questionnaire consisting of PSS (Perceived Stress Scale) and GAGS (Global Acne Grading System) was used. Data was analyzed by using SPSS and basic statistics and Spearman correlation were applied. Results: In this study, it was found that out of a total of 271 students, 138(50.9%) students didn’t have acne, and 133(49%) did have Acne. Out of a total of 271 students, 19 (7%) students had low stress, 204 students (75.3%) had moderate stress, and 48 students (17.7%) had high perceived stress. Out of 133 who were found to have acne, 87(32.1%) of the participants had mild acne, 36(13.3%) had moderate acne, 9(3.3%) had severe acne, and 1(0.4%) had very severe acne. An increase in stress severity was moderately correlated (r=0.393) with an increase in acne severity which was not statistically significant (p>0.05). Conclusions: Almost half of the study population was found to have Acne. A positive correlation has been found between stress and acne indicating stress as one of the causative factors of acne.

Development of changes to the construction code of rules in part of updated specific electrical loads

THE PURPOSE. Develop changes to the building code of rules regarding updating the specific calculated electrical loads of multi-apartment residential buildings. Perform a comparative analysis of the power of technological connection of multi-apartment residential buildings, calculated according to regulatory and technical documents and according to those developed on the basis of actual measured data with an assessment of the effect of updating specific design electrical loads.METHODS. To achieve this goal, mathematical and statistical methods of analysis were used.RESULTS. Statistical processing of the specific electrical load of apartments in multi-apartment residential buildings in the Moscow region of a cluster of 11–18 floors for twenty-three months of 2021–2023 was carried out, which made it possible to form statistically significant samples by excluding outliers from them and obtaining their basic descriptive statistics. Based on the results obtained, changes were developed to the regulatory and technical document in terms of updating the specific calculated electrical loads of apartments in multi-apartment residential buildings in the Moscow region of the cluster 11 - 18 floors.CONCLUSION. The introduction of updated values of the specific calculated electrical load will lead to the selection of power transformers with optimal loading, which, on the one hand, will reduce the “locked electrical power”, resulting in reduced electricity losses, and on the other hand, will reduce the cost of technological connection.

Deep point cloud regression for above-ground forest biomass estimation from airborne LiDAR

Quantifying forest biomass stocks and their dynamics is important for implementing effective climate change mitigation measures by aiding local forest management, studying processes driving af-, re-, and deforestation, and improving the accuracy of carbon accounting. Owing to the 3-dimensional nature of forest structure, remote sensing using airborne LiDAR can be used to perform these measurements of vegetation structure at large scale. Harnessing the full dimensionality of the data, we present deep learning systems predicting wood volume and above ground biomass (AGB) directly from the full LiDAR point cloud and compare results to state-of-the-art approaches operating on basic statistics of the point clouds. For this purpose, we devise different neural network architectures for point cloud regression and evaluate them on remote sensing data of areas for which AGB estimates have been obtained from field measurements in the Danish national forest inventory. Our adaptation of Minkowski convolutional neural networks for regression give the best results. The deep neural networks produce significantly more accurate wood volume, AGB, and carbon stock estimates compared to state-of-the-art approaches. In contrast to other methods, the proposed deep learning approach does not require a digital terrain model and is robust to artifacts along the boundaries of the evaluated areas, which we demonstrate for the case where trees protrude into the area from the outside. We expect this finding to have a strong impact on LiDAR-based analyses of biomass dynamics.

Over 300 km Dispersion of Wild Boar during Hot Summer, from Central Poland to Ukraine.

The movement of wild boars is a complex process influenced by both internal conditions and external factors. Despite their typically sedentary lifestyle, dispersion constitutes an integral element of the wild boar's behavior. This report documents the longest observed wild boar dispersal, involving a collared two-year-old male near Warsaw, Poland. The aim of this study was to present the characteristics of movement during the "nomadic phase", drawing comparisons with the "sedentary phase". The other aim was to evaluate the influence of meteorological factors on the minimum daily travel distance of the wild boar. We collected data from two-year-old males. The first exhibited long-distance dispersal and the second only demonstrated local movements. We calculated the minimum daily distance of both wild boars based on collar locations and calculated basic statistics of movement. We used a generalized linear model with a gamma distribution and log link function to assess the potential impact of weather conditions on the minimum daily distance of wild boars. We tested maximum daily temperature, average daily temperature, and the sum of daily precipitation. The wild boar during a "nomadic phase" covered a total of 922 km with a mean minimum daily movement of 6 km. The dispersion distance was 307 km. The highest value of the minimum daily distance reached 31.8 km/day. The second wild boar (near Warsaw) covered a mean minimum daily distance of 1.4 km; the highest value of the minimum daily distance was 3.9 km. Both wild boars exhibited no dependence of minimum daily distance on weather conditions. However, when intensive and non-intensive dispersion were analyzed separately, it was demonstrated that the maximum daily temperature positively influenced the minimum daily distance. We speculate that the wild boar was forced to search for water sources after dark on hot days, which induced a longer traveling distance in an unfamiliar environment. This study highlights the significant spatial capabilities of wild boar in the transmission of genes or pathogens. We speculate that extended daily distances during the initial "nomadic phase" might suggest a panicked escape from a perceived threat. It is plausible that the wild boar found improved shelter within tall cereal crops in July and August, which resulted in lower daily distances.

Assessment of spatiotemporal variability of ultraviolet index (UVI) over Kerala, India, using satellite remote sensing (OMI/AURA) data.

The spatial and temporal dynamics of daily ultraviolet index (UVI) for a period of 18 years (2004-2022) over the Indian state of Kerala were statistically characterised in the study. The UVI measurements used for the study were derived from the ultraviolet-B (UVB) irradiance measured by the Ozone Monitoring Instrument (OMI) of the AURA satellite and classified into different severity levels for analysis. Basic statistics of daily, monthly and seasonal UVI as well as Mann-Kendall (MK) statistical trend characteristics and the rate of change of daily UVI using Theil-Sen's slope test were also evaluated. A higher variability of UVI characteristics was observed in the Kerala region, and more than 79% of the measurements fell into the categories of very high and extreme UVI values, which suggests the need of implementation of appropriate measures to reduce health risks. Although the UVI measured during the study period shows a slight decrease, most of the data show a seasonal variation with undulating low and peak values. Higher UVI are observed during the months of March, April and September. The region also has higher UVI during the southwest monsoon (SWM) and summer seasons. Although Kerala region as a single whole unit, UVI show a non-significant decreasing trend (-0.83), the MK test revealed the increasing and decreasing trends of UVI ranging from -1.96 to 0.41 facilitated the delineation of areas (domains) where UVI are increasing or decreasing. The domain of UVI increase occupies the central and southern (S) parts, and the domains of decrease cover the northern (N) and S parts of the Kerala region. The rate of change of daily UVI in domain of increase and decrease shows an average rate of 0.34 × 10-5 day-1 and -2 × 10-5 day-1, respectively. The parameters (rainfall, air temperature, cloud optical depth (COD) and solar zenith angle (SZA)) that affect the strength of UV rays reaching the surface indicate that a cloud-free atmosphere or low thickness clouds prevails in the Kerala region. Overall, the study results indicate the need for regular monitoring of UVI in the study area and also suggest appropriate campaigns to disseminate information and precautions for prolonged UVI exposure to reduce the adverse health effects, since the study area has a high population density.

Liver transplant recipients with polycystic liver disease have longer waiting times but better long-term clinical outcomes than those with liver disease due to other causes: A retrospective cross-sectional study.

Liver transplantation is the only curative option for patients with polycystic liver disease (PLD). In the United Kingdom, these patients are listed on the variant syndrome list due to their preserved liver function reflected in the United Kingdom End-stage Liver Disease (UKELD) score. The transplantation and survival rates for this patient group in the UK have not been previously reported. A retrospective cross-sectional analysis of patients receiving liver transplantation between 2010 and 2017 was performed using the NHS blood and transplantation database. This database contains the demographic, clinical parameters, indication for transplantation and follow-up of all patients in UK-based transplant centres. Basic statistics was performed using SPSS version 27. 5412 recipients received elective liver allografts in the study period. 1.6% (100) of recipients had PLD as their primary indication for transplantation with 60 receiving liver only allografts and 40 receiving combined liver-kidney allografts. PLD patients had a >3-fold longer mean waiting time for transplantation compared to non-PLD patients, 508 days v 154 days respectively. PLD patients receiving combined liver-kidney allografts had a longer waiting time than those receiving a liver only allograft, 610 days v 438 days respectively. There were comparable patient survival rates for people with PLD and non-PLD primary indications at 30 days (94.0% vs 97.6%) and 1 year (92.0% vs 93.2%) but improved survival rates at 5 years (81.3% vs 76.5%). There were also comparable allograft survival rates for people with PLD and non-PLD primary indications at 30 days (93.9% vs 95.3%) and 1 year (91.9% vs 91.2%) but improved survival rates at 5 years (82.5% vs 77.3%). Transplant centre-level analysis identified variation in the proportion of liver transplantations for people with PLD as their primary listed indication. Patients with PLD wait significantly longer for liver transplantation compared to other indications. However, transplanted PLD patients demonstrate better longer-term patient and liver allograft survival rates compared to transplanted non-PLD patients. The unexpected variation between individual UK centres transplanting for PLD deserves further study.