bluuebunny/crossref_metadata_2025 huggingface dataset:
Premotor Function in Interpersonal Bimanual Coordination: Neural Responses to Varying Frequencies and Spatio-Temporal Relationships
Authors: Li Yanan , Niu Ruoyu , Liu Lei , Liu Ying
Published: July 2022

Background
Interpersonal movement coordination is an important aspect of daily life. Behavioral studies have found that rhythmic bimanual coordination of movement is mainly influenced by two factors, spatio-temporal relationship and frequency of movements. How these factors affect action coordination at the neural level needs further exploration.
Methods
Participants were asked to perform symmetric or alternating hand movements under conditions of different spatio-temporal relationships (symmetric, alternating) and frequencies. A multi-channel, continuous wave, functional near-infrared spectral (fNIRS) imaging instrument was used to monitor hemodynamic activity while 16 pairs of volunteers performed the task.
Results
Behaviorally, as indexed by phase locking value, movements were more stable in symmetric mode than in alternate mode. With increasing frequency, symmetric mode became more unstable; in contrast, alternating mode became more stable at higher frequencies, suggesting phase transition. Activation in brain regions of interest was much stronger in symmetric mode as compared with alternate mode. In alternate mode, but not symmetric mode, [HbO] varied with frequency.
Conclusion
Interpersonal bimanual coordination involves activity in premotor areas (premotor cortex, supplementary motor area, and frontal eye fields). More oxygen is consumed in these regions in alternating mode than in symmetric mode.
The relationship between Internet addiction and family environment among junior high school students in China
Authors: Jiang Zhongliang , Wang Zhiyi , Chen Jie , Tian Geng , Cheng Xiaojing , He Qiang , Zhao Miao , He Long , Liu Jintong
Published: July 2022

Objectives
Internet addiction is gaining attention because of the physical, psychological and social damage it can cause to individuals. There has been little systematic exploration of the relationship between Internet addiction and the influence of the family environment among junior high school students in China.
Methods
A whole-group sample of three county-level junior high schools in China was used to investigate the relationship between adolescents' Internet addictive behaviour and their family environment using the General Situation Questionnaire, Family Environment Scale-Chinese version, and the Internet Addiction Test (IAT).
Results
The prevalence of Internet addiction among junior high school students in China is 33.7%, among which 76.0% of junior high school students are mildly addicted to the Internet. The prevalence of Internet addiction among female students is 32.4%, and 35.0% among male students. the prevalence of Internet addiction among junior high school first year, junior high school second year and junior high school third year is 27.3%, 35.5% and 38%, respectively. The prevalence of Internet addiction among urban junior high school students is 27.5%, and the prevalence of Internet addiction among rural junior high school students is 34.5%. In terms of family environment, cohesion, expressiveness, independence, achievement, intellectual-cultural, active-recreational, moral-religious, organization, and control are negatively associated with Internet, family conflict is positively associated with Internet addiction (p < 0.01). The results of multiple stepwise regression analysis showed that seniority and prominent family conflict are risk factors for Internet addiction (P < 0.01), while female, good family expressiveness and organization, family intellectual-cultural, active-recreational and family control are prominent as protective factors for Internet addiction (P < 0.05).
Conclusion
Chinese junior high school students have a high prevalence of Internet addictive behaviours, with the highest proportion of mild Internet addictive behaviours. Males and senior students are more likely to develop Internet addictive behaviours. Family factors have a significant impact on the occurrence of Internet addiction, and interventions in the family environment of adolescents can effectively reduce the prevalence of Internet addictive behaviours.
Association of right precuneus compression with apathy in idiopathic normal pressure hydrocephalus: A case control study
Authors: Chadani Yoshihiro , Kashibayashi Tetsuo , Yamamoto Takahiro , Tsuda Atsushi , Fujito Ryoko , Akamatsu Masanori , Kamimura Naoto , Takahashi Ryuichi , Yamagami Takuji , Furuya Hirokazu , Ueba Tetsuya , Saito Motoaki , Inoue Keiji , Kazui Hiroaki
Published: July 2022

BackgroundIdiopathic normal pressure hydrocephalus (iNPH) is a slowly progressive syndrome caused by the excessive accumulation of cerebrospinal fluid and is typically characterized by the triad of cognitive, gait, and urinary disturbances and ventricular dilation. In addition to this triad of symptoms, apathy is frequently observed in iNPH and worsens the cognitive impairment and gait disturbance. Although apathy is an important symptom in iNPH, its neurological basis remains unknown.ObjectivesThis study aimed to analyze and elucidate the brain regions associated with apathy in iNPH using statistical imaging analysis and to investigate regional cerebral blood flow and regional gray matter volume, which indicates gray matter compression, in a whole-brain study.MethodsTwenty seven patients with iNPH were assigned to two groups based on their scores on the Neuropsychiatric Inventory items related with apathy; 18 patients were assigned to the group with apathy (iNPH + APA) and 9 to the group without apathy (iNPH - APA). The magnetic resonance images and cerebral blood flow single-photon emission computed tomography data of the two groups were compared using statistical parametric mapping 12. ResultsThe regional gray matter volume of the right precuneus was significantly larger in the iNPH + APA group than in the iNPH − APA group, but the and regional cerebral blood flow in any region of the brain was not significantly different between the two groups.ConclusionThese results suggested that compression of the precuneus might be involved in apathy in iNPH and the importance of brain compression in iNPH symptoms. In addition, this study also shows that VBM is useful for indicating the degree of brain compression.
Particle-tracking-based estimation of shear stress on cell aggregates in shaking vessel with different shaking methods/speeds
Authors: Horiguchi Ikki , Nagate Hotaka , Sakai Yasuyuki
Published: July 2022

Suspension cultures are widely used for cell expansion in regenerative medicine and production. Shear stress caused by the flow of medium in cultures causes cell death and delayed growth; thus, the shear stress on the cell surface must be minimized for successful suspension culture. We established a particle tracking system for estimating the shear stress on induced pluripotent stem cell aggregates during shaking culture and utilized it to optimize shaking conditions (orbital and reciprocating shaking). When the average accelerations of aggregates were calculated, high acceleration occurred periodically, and acceleration on the aggregates in orbital shaking was stable. Furthermore, the number of dead cells correlated with the time average of acceleration. In the case of growth, there was optimal acceleration due to various events, such as aggregate formation and cell death. These results indicated that image-based analyses of acceleration are helpful for estimating the shear stress on the aggregates in suspension culture to optimize agitation.
Field-based metabolomic reveals alteration of the volatiles organic compounds produced by Lavandula species in the context of yellow decline disease
Authors: Stierlin Émilie , Nicolè Florence , Costes Thomas , Mehl Florence , Fernandez Xavier , Michel Thomas
Published: July 2022

Introduction Fine lavender and lavandin are perfume and medicinal plants widely cultivated in Provence (south-east of France) for their essential oil and for the production of honey. The lavender monocultures are affected by a severe decline in France, due to the propagation of the yellow decline disease. This disease is caused by the Stolbur phytoplasma, a bacterium transmitted by a sap-sucking insect, Hyalesthes obsoletus. Objectives Main objective was to develop an untargeted metabolomic approach to highlight changes in the volatiles organic compounds produced by asymptomatic (“healthy”) and symptomatic (“infected”) plants. Methods Samples from fine lavender and lavandin aerial parts were collected in the field, then stored volatile compounds were extracted in the laboratory by ultrasound assisted extraction and analyzed by gas chromatography–mass spectrometry. Afterwards, multivariate statistical analysis has been performed using principal component analysis and partial least square regression as well as a multiblock statistical analysis by orthogonal partial least squares discriminant analysis to compare VOCs from fine lavender (variety 7713) and lavandin (variety abrial).Results Fifty stored VOCs, mainly oxygenated monoterpenes, from lavender and lavandin leaves and blooming head of the inflorescences were identified. Metabolism of several compounds were found to be altered by yellow decline such as β-farnesene overexpressed by symptomatic plants. Conclusion The developed metabolomic approach allowed the identification of specific volatile compounds produced by asymptomatic and symptomatic plants in a complex field environment.
Effects of anthropogenic habitat fragmentation on the genetic connectivity of the threatened endemic Campylorhynchus yucatanicus (Aves, Trogloditydae) in Yucatan Peninsula, Mexico
Authors: Serrano-Rodríguez Anay , Escalona-Segura Griselda , Rodríguez Antonio González , Machkour-M'Rabet Salima , Ruiz-Montoya Lorena , Elias Eduardo E. Iñigo , Plasencia-Vázquez Alexis H.
Published: July 2022

Identifying connectivity patterns among remnant bird populations and their relationship with land use practices and subjacent habitat fragmentation is key for implementing appropriate management strategies for species conservation. The coastal thorn scrub forest and dune vegetation complex in the northern Yucatan Peninsula has been affected by coastal development. These human induced processes of land use change can affect the Yucatan Wren (Campylorhynchus yucatanicus), an endemic bird to this vegetation types with a narrow distribution. To identify possible anthropogenic barriers to connectivity of populations of C. yucatanicus, we collected 140 samples from 14 localities and used seven nuclear microsatellite loci to describe the current structure and genetic diversity of populations of C. yucatanicus. We explored the relationship between the genetic variability of populations and landscape structure through regression models. In addition, we described the relationship between genetic distance and landscape resistance. We found four genetic populations with Bayesian clustering methods. Human settlements and availability of adequate habitat limit the connectivity between sites due to ongoing land use changes. We suggest some management actions for conservation of this species, and we propose to change the IUCN threat category to "endangered" because of today the species has a more restricted distribution, small population, habitat degradation, loss of connectivity, and loss of genetic variability.
Causal relationships between government intervention and policy on poverty reduction in Nigeria: A macroeconomic perspective from 1980-2019
Authors: Zaria Yusuf Bala
Published: July 2022

The authors have requested that this preprint be removed from Research Square.
The Relationship Between Stress Life Events and Adolescents' Sleep Problems: A Moderated Mediation Model
Authors: Liu Ting , Zou Hongyu , Tao Zhiyuan , Qiu Boyu , He Xu , Chen Yanrong , Wang Sixian , Zhang Wei
Published: July 2022

In recent years, adolescent sleep problems have received increasing attention. Stressful life events have been found to be a risk factor for sleep problems, but little is known about the components that may explain or influence this association. To investigate this, present research tested whether depressive symptoms mediated the association between stressful life events and adolescents' sleep problems, as well as whether emotional regulation skills decreased this process. A sample of 513 Chinese university students (32.2% males, mean age = 19.04 years, SD = 1.21) completed anonymous questionnaires regarding stressful life events, depressive symptoms, emotional regulation and sleep problems (examined using Adolescent Self-Rating Life Events Checklist, Epidemiologic Studies Depression Scale for Children, Pittsburgh Sleep Quality Index and Response to Stress Questionnaire). The studies included covariates such as gender, age, and socioeconomic level. Depressive symptoms were shown to partially mediated the association between stressful life events and sleep problems in structural equation models. Emotional regulation buffered the negative effects of stressful life events on depressive symptoms. The results show that promoting emotional regulation could be beneficial in preventing and intervening sleep problems related to stressful life events.
Relationship between unemployment and policy uncertainty in Nigeria: ARDL evidence from 1990 to 2020
Authors: Zaria Yusuf Bala
Published: July 2022

Nigeria has been facing policy uncertainty due to unemployment, poor infrastructure development, and weak foreign direct investment inflows. The government seeks policies that can effectively drive its macroeconomic activities as intervention. As such, this study assessed the determinants of policy uncertainty from 1990 to 2020. The dynamic autoregressive distributed lag approach was employed to analyse the positive and negative changes in policy uncertainty, as well as the reliability in macroeconomic activities such as unemployment, infrastructure development, and foreign direct investment inflows. The empirical evidence revealed short- and long-run relationship involving policy uncertainty with unemployment, infrastructure development, and foreign direct investment inflows. In particular, policy uncertainty positively affected macroeconomic activities that led to unemployment, infrastructural development and pessimistic foreign investors. Dynamic relationship seems to exists between policy uncertainty and macroeconomic activities in Nigeria. Risk-taking decisions had resulted in high unemployment rate, poor infrastructural development, and low foreign direct investment inflows.JEL classification: E24, D81, C22
Heteroscedastic Process: A M-quantile Approach
Authors: Patrocinio Patrick Ferreira , Reisen Valderio A. , Bondon Pascal , Monte Edson Z. , Danilevicz Ian M.
Published: July 2022

As is well known, outliers are quite common observations in different application areas and these types of data can cause large biases in the estimates of the mean, variance, correlation and, consequently, in the parameter estimates. Thus, robust estimation methods are needed to obtain reliable statistical models. There are empirical evidence that the financial time series and the distributions of returns are not well approximated by Gaussian models, which is an assumption generally considered to model these data. Therefore, both quantile and M-regression methods have been suggested to estimate GARCH model. In this paper, these two methodologies are combined to obtain a robust estimator for conditional volatility. Empirical evidence indicates that the proposed method seems to be more resistant to additive outliers than the M- and Quantile regressor estimators. Some technical issues are addressed, and an application illustrates the usefulness of the method in a real data set.
Spatial distribution, potential sources, and health risk of polycyclic aromatic hydrocarbons (PAHs) in the surface soils of Shanxi Province, north China
Authors: Ji Li , Li Wenwen , Li Yuan , He Qiusheng , Bi Yonghong , Zhang Minghua , Zhang Guixiang , Wang Xinming
Published: July 2022

Polycyclic aromatic hydrocarbons (PAHs) are widespread in the environment and pose serious threat to the soil ecosystem. In order to better understand the health risks of resident exposed to by PAHs-contaminated soil, 173 surface soil samples were collected in Shanxi Province, China, to detect the levels of 16 priority PAHs. The spatial distribution patterns of PAHs were explored using interpolation and spatial clustering analysis, and the probable sources of soil PAHs were identified for different land-use covers. The results indicate that the soil Σ16 PAH concentration to range from 22.12 to 1337.82 ng g− 1, with a mean of 224.21 ng g− 1. The soils were weakly to moderately contaminated by high molecular weight PAHs (3–5 ring) and the Taiyuan-Linfen Basin was the most polluted areas. In addition, the concentration of soil PAHs on construction land was higher than that on other land-use covers. Key sources of soil PAHs were related to industrial activities dominated by coal burning, coking, and heavy traffic. Based on the exposure risk assessment of PAHs, more than 10% of the area was revealed to be likely to suffer from high child carcinogenic risks. The study maps the high-risk distribution of soil PAHs in Shanxi Province and provides PAH-pollution reduction strategies for policy-makers to prevent adverse health risks to residents.
Comparison of automated segmentation techniques for magnetic resonance images of the prostate
Authors: Isaksson Lars Johannes , Pepa Matteo , Summers Paul , Zaffaroni Mattia , Vincini Maria Giulia , Corrao Giulia , Mazzola Giovanni Carlo , Rotondi Marco , Presti Giuliana Lo , Raimondi Sara , Mistretta Sara , Luzzago Stefano , Cattani Federica , Musi Gennaro , De Cobelli Ottavio , Cremonesi Marta , Orecchia Roberto , Marvaso Giulia , Petralia Giuseppe , Jereczek-Fossa Barbara Alicja
Published: July 2022

Background: The contouring of anatomical regions is a crucial step in the medical workflow and is both time-consuming and prone to intra- and inter-observer variability. This study compares different strategies for automatic segmentation of the prostate in T2-weighted MRIs.Methods: This study included 100 patients diagnosed with prostate adenocarcinoma who had undergone multi-parametric MRI and prostatectomy. From the T2-weighted MR images, ground truth segmentation masks were established by consensus from two expert radiologists. The prostate was then automatically contoured with six different methods: (1) an ad-hoc multi atlas-based algorithm, (2) a commercial package named SyngoVia, and four deep learning models: (3) a U-net deep learning architecture trained from scratch, (4) a U-net with a pre-trained encoder, (5) a GAN extension of the network in point 4, and (6) a segmentation-adapted modification of Google Brain’s EfficientDet architecture. The resulting segmentations were compared and scored against the ground truth masks with one 50/50 and one 70/30 train/test data split.Results: The best performing method was the adapted EfficientDet (model 6), achieving a mean Dice coefficient of 0.914, a mean absolute volume difference of 5.9%, a mean surface distance (MSD) of 1.93 pixels, and a mean 95th percentile Hausdorff distance of 3.77 pixels. The deep learning-based models were more reliable in terms of worst-case performance (0.854 minimum Dice and 4.02 maximum MSD), and no significant relationship was found between segmentation performance and clinical variables.Conclusion: Deep learning-based segmentation techniques can consistently achieve Dice coefficients of 0.9 or above with as few as 50 training patients, regardless of architectural archetype. Our atlas-based method and commercial software performed significantly worse (0.855-0.887 Dice).
Vibration loading of a feller-buncher machine operator in the process of skidding a bunch of trees
Authors: Александров В.А. , Александров А.В. , Бучников А.А.
Published: July 2022

Разработана динамическая модель системы «Оператор – ВПМ – предмет труда – дерево». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система уравнений решена относительно упругой деформации спинки сидения оператора методом Рунге–Кутта, с помощью среды программирования MathCAD. Апробация модели осуществлена на примере серийно выпускаемых валочно-пакетирующих машин ЛП-19А.

A dynamic model of the system «operator – feller – buncher machine – object of labor – tree» has been developed. The mathematical description is in the form of the Lagrange equation of the second kind. The system of equations is solved for the elastic deformation of the operator's seat back by the Runge–Kutta method, using the MathCAD programming environment. Approbation of the model was carried out on the example of commercially available feller-bunchers machines LP-19А.
CORPORATE SOCIAL RESPONSIBILITY MANAGEMENT IN THE CONTEXT OF ACHIEVING SUSTAINABLE DEVELOPMENT GOALS
Authors: Rekunenko I. , Kubatko V. , Myroshnychenko Yu. , Lyutiy V.
Published: July 2022

Recently, the importance of corporate social responsibility in society has grown significantly. It was formed in developed countries, but despite this, over time it was adopted by organizations, enterprises and corporations in many developing countries. Due to the existence of economic, environmental, social and political problems in the world, there is a need to reconsider the relationship between business, society and government. Given the fact that the priority goals of world politics are constant growth and development, in the current reality, sustainable development remains the central concept of today, because it is the main method of solving problems that arise in the context of globalization and society development.
That is why the study of the business structures, enterprises, corporations, public authorities and other organizations role in achieving of sustainable development goals using the provisions of corporate social responsibility as an effective tool to achieve this goal deserves special attention. The main directions of corporate social responsibility development in the modern business environment include the introduction of modern labor and business practices, organizational management, human rights, environmental protection, ethical relations with consumers, active participation in community life and support for social projects. As international practice shows, the implementation of corporate social responsibility provides companies with a number of advantages, in particular, improves business reputation, image, increases the trust of government and society.
The article considers the theoretical aspects of modern business structures corporate social responsibility development, the advantages and obstacles in the implementation of companies CSR activities. Based on the bibliometric content analysis, the relationship between corporate social responsibility and sustainable development was established and analyzed. By use of software in the study, research clusters in the context of CSR and sustainable development interaction were identified and analyzed. The realization ways of effective CSR management in modern companies are offered and the further directions of researches are defined.
A Structural Framework for Neuro-Linguistic Programming (NLP) and its Consequence on Leadership Succession Planning Strategy Applying to the Leaders of King Khalid University and Qualified Personnel for Leadership Position
Authors: Hassan Fatimah Mohamed Mahdy , Binzafrah Faiz , Alqahtani Mohammad
Published: July 2022

The research paper pursues to know the effect of NLP practices on leadership succession planning strategy by applying to The Leaders of King Khalid University and Qualified Personnel for the Leadership position. After reviewing the literature, the researchers formulated a hypothetical model for the study that includes the central hypothesis from which six sub-hypotheses emerge, including measuring the impact of NLP pillars on leadership succession planning strategy. A sample size of 100 individuals was selected, representing the research population represented by the deans and deans of the university and colleges and heads of departments in colleges at King Khalid University in Saudi Arabia. The response rate was 82%, with 82 valid questionnaires for analysis. The study relied on Structural Equation Modeling (SEM) by AMOS (V.26) and SPSS (V.25) for data analysis and hypotheses. The study found a positive and significant effect between NLP and leadership succession planning strategy. NLP confirmed its re-formulation of standard mental models to understand and facilitate the process of thinking and training, which helps successive leaders understand the ideas and beliefs of current leaders and their ways of thinking in solving problems and facing crises. In addition, NLP plays a vital role in increasing the successive leader’s sense of the need to establish their reputation for outstanding performance after similarity and learning from the model. Finally, the novice leader needs a model and role model to help him control the way he feels, transforming it into positive thinking that stimulates energy and focuses on goals, which the application of NLP practices does. So, this study is recommended the necessity of activating leadership succession planning strategy within universities through establishing a leadership academy in which NLP methods are practiced, as this academy has a significant impact on achieving leadership succession and the continuation of pipelines of leaders.
Protein-fat concentrate for enrichment of wheat flour
Authors: Pankratov G. N. , Meleshkina E. P. , Vitol I. S. , Kechkin I. A. , Kolomiets S. N.
Published: July 2022

Wheat flour, especially high grade flour, is significantly impoverished in macro-, micronutrients and other valuable components such as essential amino acids, essential fatty acids, vitamins, minerals, soluble and insoluble dietary fibers. To enrich wheat flour, the authors produced lentil-flax flour (protein-fat concentrate) with the high protein (27.5%) and fat (11.9%) content. The developed technological scheme of the combined grinding of lentil (67%) and flax (33%) seeds included the I–III break systems, sizing system, scratch system, 1–3 reduction systems. When studying physico-chemical and biochemical indicators, it was found that the protein-fat concentrate was close to the corresponding indicators of wheat flour by mechanical characteristics. A significant proportion of the albumin-globulin fraction of soluble proteins (88%), as well as the high content of the most deficient essential α-linolenic acid (6.11% compared to 0.05% in wheat flour with regard to the total fat content) suggest the high nutritional and biological value of the obtained product. Evaluation of an effect of the protein-fat concentrate on the indicators of the finished products (crackers) showed that its introduction in an amount of 15% of the total flour volume not only did not worsen but even improved sensory indices by several criteria. The high total sensory score (32 points) indicates the standard quality of the obtained product. Addition of lentil-flax flour in an amount of 15% of total flour weight in production of bakery products as well as bakery confectionary products will allow extending the assortment of balanced farinaceous products, significantly reducing the deficiency of essential α-linolenic acid in diets upon their consumption according to the physiological norms.
Milk curd self-segmentation in cheesemaking tank
Authors: Smykov I. T.
Published: July 2022

The purpose of this work is to describe and study the previously unknown phenomenon of self-segmentation of a milk curd in an open-type cheesemaking tank. Based on the analysis of the kinetics of gel formation, it has been determined that self-segmentation of the gel begins near the gel point, develops over several tens of seconds, and becomes stable as the gel condenses. The segments in the milk curd do not have a definite regular shape; their average size varies from 5 to 50 cm. The shape and size of the segments do not repeat and do not correlate with the type of cheese being produced. The displacement of the segments of the milk curd in the cheesemaking tank relative to each other in height is from 0.5 to 2 mm. The width of the boundary layer between the curd segments increases during the secondary phase of gelation from 3 to 10 mm. As a result of experimental studies, it has been shown that self-segmentation of milk gel is caused by thermogravitational convection, which forms Benard convection cells. A description of a possible mechanism of milk gel self-segmentation in open-type cheesemaking tanks is proposed. The effective role of fat globules in the mechanism of self-segmentation of the milk curd has been noted. It has been suggested that self-segmentation of the milk curd in the cheesemaking tank may cause some organoleptic defects in the finished cheese, in particular inhomogeneity of texture and color.
The Cultivation of Blandness
Authors: Heubel Fabian
Published: July 2022

U ovome članku, istražujem motiv »blagosti« (píngdàn 平淡) povezujući ga s raspravom o tvrdoći i mekoći te udaljenosti i blizini, kako je razmatrano u djelu Duh kineske umjetnosti modernog kineskog filozofa Xúa Fùguāna 徐復觀. Nadam se da ću na taj način proučiti značenje blagosti u kineskom slikarstvu učenjaka. U slikarstvu se učenjaka prakticira estetski granični doživljaj vezan za promjenjiva stanja energije daha i disanja. Uzdržava se od načina kreativnosti koji jednostrano teži intenzitetu, šoku i provokaciji. Ovdje se pod pojmom »blagosti« podrazumijeva filozofijski i estetski koncept koji se odnosi na kultiviranje sposobnosti slobodnog ostavljanja neiskorištenih mogućnosti. Ovo zvuči apsurdno ako se pretpostavi da estetika blagosti pripada konformističkom mišljenju imanencije. Nasuprot tome, predlažem shvaćanje blagosti kao područja u kojem imanencija i transcendencija, konačno i beskonačno paradoksno komuniciraju jedno s drugim.
Complementarity of Lepton-Charge and Forward-Backward Drell-Yan Asymmetries for Precision Electroweak Measurements and Quark Density Determinations
Authors: Fiaschi Juri , Giuli Francesco , Hautmann Francesco , Moretti Stefano
Published: July 2022

We address the impact of future measurements of charged and neutral current Drell-Yan (DY) asymmetries and their combination on Parton Distribution Functions (PDFs) uncertainties.
We quantify the reduction of PDF uncertainties using the QCD tool xFitter.
We examine the effects of such reduced PDF errors on both Standard Model (SM) and Beyond SM (BSM) observables.
Di-$\pi^0$ correlations in p+p, p+Al and p+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR
Authors: Chu Xiaoxuan
Published: July 2022

The STAR Collaboration reports measurements of back-to-back azimuthal
correlations of di-\pi^0π0
produced at forward pseudorapidity (2.6<\eta<4.02.6<η<4.0)
in p+p+pp,
p+p+\mathrm{Al}Al
and p+p+\mathrm{Au}Au
collisions at a center-of-mass energy per nucleon-nucleon pair of 200
GeV. A clear suppression of the correlated away-side yields is observed
in p+p+\mathrm{Au}Au
and for the first time in p+p+\mathrm{Al}Al
collisions, compared with the pp++pp
data. The enhanced suppression found in p+p+\mathrm{Au}Au
with respect to p+p+\mathrm{Al}Al
collisions exhibits the saturation scale (Q_s^2Qs2)
dependence on the mass number AA.
The observed suppression of back-to-back pairs as a function of event
activity and transverse momentum points to non-linear gluon dynamics
arising at high parton densities.
Transversity through Dihadron: a constrained fit
Authors: Courtoy Aurore
Published: July 2022

We present a study of the valence transversity PDF obtained through a constrained fit. The effects of the constraints on the uncertainties of the PDF are explored. We show that the resulting isovector tensor charge is largely undetermined and, hence, compatible with all lattice evaluations.
Correlations between azimuthal asymmetries and multiplicity and mean transverse momentum in small collisions systems in the CGC
Authors: Altinoluk Tolga , Armesto Nestor , Kovner Alex , Lublinsky Michael , Skokov Vladimir
Published: July 2022

Considering a dilute-dense situation suitable for pA collisions, we
compute in the Color Glass Condensate the correlation between azimuthal
asymmetries, specifically the squared second Fourier coefficient
v_2^2v22,
and the total multiplicity in the event. We also analyse the correlation
between v_2^2v22
and the mean squared transverse momentum of particles in the event. In
both cases, we find that the correlations are generally very small,
consistent with the observations. We also note an interesting sharp
change in the value of v_2^2v22
and its correlations as a function of the width of the transverse
momentum bin, related with a change of the dominance of Bose and HBT
quantum correlations.
Hard exclusive $\pi^{+}n$ electro production beam spin asymmetries off the proton in the GPD and TDA regimes
Authors: Diehl Stefan
Published: July 2022

Hard exclusive \pi^{+}π+n
electro-production can be used to gain access to the 3D nucleon
structure. The QCD factorisation mechanism in the “nearly forward
region” (t/Q^{2}t/Q2
small) allows a description by Generalized Parton Distributions (GPDs),
while for the “nearly backward” kinematic region
(u/Q^{2}u/Q2
small) a description based on nucleon to pion transitions (TDAs) is
available. The paper presents a measurement of single beam spin
asymmetries to extract the A^{\sin\phi}_{LU}ALUsinϕ
moments and the related cross section ratio
\sigma_{LT^\prime}/\sigma_{0}σLT′/σ0
from the hard exclusive \pi^{+}π+
channel off the unpolarized hydrogen target in a wide range of
kinematics based on data taken with the CLAS spectrometer at Jefferson
Lab. In addition, under forward angles a detailed multidimensional study
will be presented based on CLAS12 data and compared to theoretical
predictions.
Hybrid high-energy/collinear factorization in a heavy-light dijets system reaction
Authors: Bolognino Andrèe Dafne , Celiberto Francesco Giovanni , Fucilla Michael , Ivanov Dmitry Yu. , Papa Alessandro
Published: July 2022

We propose the inclusive hadroproduction of a heavy-light dijet system, as a new channel for the investigation of high-energy QCD. We build up a hybrid factorization that incorporates a partial next-to-leading BFKL resummation inside the standard collinear description of observables. We present a detailed analysis of different distributions: cross-section summed over azimuthal angles and differential in rapidity and azimuthal distribution. The stability that these distributions show under higher-order corrections motivates our interest in future studies, doable at new generation colliding machines.
The photon content of the proton in the CT18 global analysis
Authors: Xie Keping , Hobbs Timothy , Hou Tie-Jiun , Schmidt Carl , Yan Mengshi , Yuan Chien-Peng
Published: July 2022

Recently, two photon PDF sets based on implementations of the LUX
ansatz into the CT18 global analysis were released. In CT18lux, the
photon PDF is calculated directly using the LUX master formula for all
scales, \muμ.
In an alternative realization, CT18qed, the photon PDF is initialized at
the starting scale, \mu_0μ0,
using the LUX formulation and evolved to higher scales
\mu(>\mu_0)μ(>μ0)
with a combined QED+QCD kernel at \mathcal{O}(\alpha),~\mathcal{O}(\alpha\alpha_s)𝒪(α),𝒪(ααs)
and \mathcal{O}(\alpha^2)𝒪(α2).
In the small-xx
region, the photon PDF uncertainty is mainly induced by the quark and
gluon PDFs, through the perturbative DIS structure functions. In
comparison, the large-xx
photon uncertainty comes from various low-energy, nonperturbative
contributions, including variations of the inelastic structure functions
in the resonance and continuum regions, higher-twist and target-mass
corrections, and elastic electromagnetic form factors of the proton. We
take the production of doubly-charged Higgs pairs,
(H^{++}H^{--})(H++H−−),
as an example of scenarios beyond the Standard Model to illustrate the
phenomenological implications of these photon PDFs at the LHC.
Heavy Flavor and Jet Studies for the Future Electron-Ion Collider to Explore the Hadronization Process
Authors: Li Xuan
Published: July 2022

Heavy flavor production at the future Electron-Ion Collider (EIC)
will allow us to precisely determine the quark/gluon fragmentation
processes in vacuum and the nuclear medium especially within the poorly
constrained kinematic region. Heavy flavor hadron and jet
reconstructions with the recent EIC detector design have been studied in
simulation. Results of corresponding physics projections such as the
flavor dependent hadron nuclear modification factor
R_{eA}ReA
in electron+nucleus collisions will be shown. The statistical precision
obtained by these proposed heavy flavor measurements for the future EIC
provides a strong discriminating power in separating different
theoretical predictions.
Measurement of charged-particle production in single diffractive proton-proton collisions with the STAR detector
Authors: Adamczyk Leszek
Published: July 2022

We present results on the inclusive and identified (pion, kaon,
proton and their antiparticles) charged-particle production in single
diffractive (SD) dissociation process in proton-proton collisions at
\sqrt{s}=200s=200
GeV with the STAR detector at RHIC. The forward-scattered proton is
measured in the Roman Pot (RP) system, while the charged particle tracks
are reconstructed in the STAR Time Projection Chamber. The
proton-antiproton production asymmetry is measured to study the baryon
number transfer over a large rapidity interval in SD process. In
addition, K/\piK/π
ratio is measured, showing a larger strangeness production at
p_T>0.5pT>0.5
GeV/\mathit{c}𝑐
compared to measurements in inclusive proton-proton collisions.
A model for $F_L$ structure function at low values of $Q^2$ and $x$ - revisited
Authors: Badelek Barbara , Stasto Anna
Published: July 2022

A reanalysis of the model for the longitudinal structure function
F_L (x,Q^2)FL(x,Q2)
at low xx
and low Q^2Q2
was undertaken, in view of the advent of the EIC. The model includes the
kinematic constraint F_L\sim Q^4FL∼Q4
as Q^2\rightarrowQ2→
0. It is based on the photon-gluon fusion mechanism suitably
extrapolated to the region of low Q^2Q2.
Revised model was critically updated, extended to the EIC kinematic
region, and e.g. contains new parameterisations of the parton
distribution functions.
The rating of Ukraine’s regional tourist systems according to their investment potential
Authors: Mazaraki Anatolii , Boiko Marharyta , Bosovska Myroslava , Okhrimenko Alla , Antoniuk Kateryna
Published: July 2022

The development and implementation of regional tourism development programs in Ukraine require the formation of the information environment for ranking the tourist systems of Ukraine’s regions according to the attractiveness of their investment potential, which determines the purpose of this study. The methods of economic analysis and rating modeling were used to rank regional tourism systems according to their investment potential by determining the integral indicator of the economic and tourist resources of each region. Accordingly, economic indicators are chosen to provide the regions with financial, labor, and production resources; tourism indicators include supply and demand for tourism services, availability of tourism resources, tourism efficiency, as well as tourism accommodation. According to the results of rating and grouping, three groups of regions were formed: the first (the priority in terms of investment potential of the tourist system has the value of the integrated indicator from 72.0 to 94.8); the second (values from 40.2 to 71.0, reflecting the average level of investment potential); and the third (values from 25.0 to 40.1 for regions with low investment potential). The rating of regional tourist systems reflects the development level of their potential; it is an indicator of the effectiveness of its management and information base necessary for management decisions of potential investors. The asymmetry of investment potential of regional tourism systems causes an imbalance in their competitiveness, so implementing regional and national programs will help intensifying their use and equalizing regions’ development.
AcknowledgmentThe paper reflects the research results within the study carried out in 2021–2024 at the State University of Trade and Economics at the request of the Ministry of Education and Science of Ukraine “Digital Transformation of Trade, Economic and Tourist Systems of Ukraine,” state registration number 0117U000503, and “Forecasting the impact of the tourist system on the country’s economy,” state registration number 0122U001559.
Making FIFA World Cup Qatar 2022 Truly Healthy and Safe: Strategies and Legacy for Present and Future Sporting Events
Authors: Adelowo Abiodun Bamidele
Published: July 2022

Aside from the FIFA men’s World cup, fewer other global sporting events have the potential to attract the undivided attention of global leaders and citizens. It is arguable the most influential global sporting event. Thus, the FIFA World Cup Qatar 2022 has been themed “Healthy 2022 World Cup - Creating Legacy for Sport and Health”, and the goal is to make the event the most successful, healthiest, and safest sporting event in recent human history. The event is meant to rekindle the global conversation around the double disease pandemic that is presently ravaging the world. The fast and furious Covid-19 and the subtle and steadily progressing non-communicable diseases (NCDs). The event organizers also intend to use the platform to provide and implement health promotional strategies that will successfully prevent and control the spread and progression of these diseases and influence most global football enthusiasts to cultivate healthy and sustainable lifestyle changes. A successful event may likely be a model and legacy for future sporting or social events. However, for the FIFA World cup Qatar 2022 to be effective in changing unhealthy behaviours and in promoting safe and healthy lifestyles, it should have some vital components. The planning and execution of such a project need to be systematic, comprehensive, and evidence-based. This review briefly discussed the global impacts of Covid-19 and NCDs, the importance of combating these diseases through the FIFA World cup Qatar 2022, and finally suggested strategies that will likely ensure the event achieves its set goals and objectives.
Investigating the Effectiveness of Case Management among Orphans and Vulnerable Children at Household Level in Enugu State, Nigeria
Authors: Ezekiel Prince O
Published: July 2022

In sub-Saharan Africa, a large proportion of children lack basic necessity and support for optimum development. In Nigeria, the estimated number of children who are orphans and vulnerable and in need of essential care is 17.5 million as of 2008. Major causes of orphaning and vulnerability include poverty, conflicts, HIV/AIDS, road accidents, communicable and non-communicable diseases, and harmful cultural practices. Hence, the Case management approach has been adopted as a community service delivery strategy for addressing the needs of orphans and vulnerable children at the household level. This study investigated vulnerable households in Enugu State who have been ever enrolled into Orphans and Vulnerable Children (OVC) donor-funded programs and received services that are geared toward enhancing their socio-economic stability. The standard OVC custom indicators were used in measuring the results and outcomes of services provided to OVC and their caregivers. The results show significant effect and impact of the case management approach in OVC program service delivery as over 50,000 beneficiaries from over 14,000 households were served from four domains of Healthy, Safe, Schooled and Stable. Households received these services after enrolment and were moved from a state of vulnerability to self-resiliency. Also, results show strong collaboration between OVC implementing NGOs and government stakeholders in terms of capacity building and systems strengthening in addressing the need of OVC and their caregivers. Conversely, results indicated a week synergy between local and state government OVC officials – hampering on their oversight capabilities of OVC programs. This can be improved with increased funding and coordination.
Start-Up and Fraud Shenanigans: Case Study on Start-Ups Affiliated with Public Companies
Authors: Dinata Ruri Octari , Nurbaiti Annisa
Published: July 2022

This study explains how fraud occurs in start-up companies. This study uses qualitative method with thick description technique with the aim of investigating current events and directing them to concepts and theories by utilizing information obtained from informants. The results of this study show that shenanigans were initially formed from a culture shock that led to a fraud in the form of corruption that harmed many parties, including investors. This happens because fraud has become a culture and the company leaders have lost their integrity. The novelty of this research lies in the type of fraud committed by fraud perpetrators that occur in start-up companies.
Travel, Empire and Ethnographic Self-Fashioning of a White Headhunter: Christoph von Furer-Haimendorf’s The Naked Naga
Authors:   Department of English, Gurucharan College, Silchar, India, Chowdhury Mehdi Hasan , Das Dipendu ,   Department of English, Assam University, Silchar, India
Published: July 2022

Travel Writing produced under the frameworks of colonialism and ethnography offers an opportunity to delineate the entanglement of the traveller in the ideological underpinnings of empire and ethnography. Drawing on the interdisciplinary formulations of the writing culture debate, the paper construes Christoph von Furer-Haimendorf’s The Naked Nagas (1939) as a travel text that narrativises encountered life-worlds in the Naga Hills, a contact zone in the frontier of the colonial Northeast India. Through an interdisciplinary approach, the paper traces the text’s ideological incarnation under the Nazi regime and foregrounds the self-fashioning by the European ethnographer-traveller as a salvager, a cultural translator and a white headhunter of folkloric proportion. It thereby posits the contact zone’s congeniality for translation and circulation of identities. The text exhibits a futuristic gesture towards postmodernist configurations of ethnographic writing and self-fashioning, and emerges as polysemous and simultaneously participates in and subverts the discourse of headhunting by deconstructing the inherent discursivity in headhunting. Read in the context of the colonial Northeast Indian frontier, Furer-Haimendorf’s narrative, generally marginalised in academic studies, signposts a critique of Christian evangelism as a threat to the ethnographic present of indigenous societies. The paper contributes to the interdisciplinary knowledge on the configuration of the colonial Northeast Indian frontier by envisioning the roles of, and contested affinity among, travel, empire and ethnographic exercises as evinced in travel writing.
Internal Instabilities: Nationalism in the Context of Nagaland with reference to Select Novels
Authors:   Dept of English, Gauhati University, Guwahati, Assam, Daimari Anjali
Published: July 2022

This paper is an attempt to explore the internal instabilities within the idea of nationalism through a reading of Birendra Bhattacharyya’s Yaruingam and Easterine Kire’s Bitter Wormwood. It would look into Nationalism in the context of Nagaland which offers an alternative idiom in so far as any discussion on the idea of nation is concerned. Any discourse on nationalism in India would have to take into account the discursive contradictions of ideas inherent in it. Taking into consideration the views of Gandhi, Tagore and Ambedkar, the paper strives to begin with the premise that the idea of nationalism in the Indian context is inherent in its internal instabilities and inherent contradictions. As such, years after independence, India continues to deal with its effects as there have been autonomy movements as diverse groups within Northeast India find itself absent in the narrative of the nation. Nagaland, the focus of this paper, for instance, wanted secessionism. The Naga case through a reading of the texts taken for the study offers insights into this vexed Naga crises.