bluuebunny/crossref_metadata_2025_split huggingface dataset:
Limit Theorems for Weighted Sums of Asymptotically Negatively Associated Random Variables Under Some General Conditions
Authors: Huang Haiwu , Zeng Hongguo , Fan Yanqin 
Published: August 2023

ABSTRACT
In this work, suppose that {X

n
; n ≥ 1}is a sequence of asymptotically negatively associated random variables and {a

ni
; 1 ≤ i ≤ n, n ≥ 1} is an array of real numbers such that

∑

i
=
1

n

|

a

n
i

|

q

=
O

(
n
)

for some q > max

{

α
p
−
1

α
−
1
/
2

,
2

}

with αp > 1 and

α
>

1
2

. Let l (x) > 0 be a slowly varying function at infinity. We establish some equivalent conditions of the complete convergence for weighted sums of this form

∑

n
=
1

∞

n

α
p
−
2

l

(
n
)

P

(

max

1
≤
j
≤
n

|

∑

i
=
1

j

a

n
i

X
i

|

>
ε

n
α

)

<
∞

for

all

ε

>

0
.

As applications, some strong laws of large numbers for weighted sums of asymptotically negatively associated random variables are also obtained.
War Discourse on TV: A Glimpse into Russian Political Talk Shows (2014 and 2022)
Authors: Kaltseis Magdalena 
Published: August 2023

AbstractThis article examines the war discourse on Russian television, particularly in political talk show broadcasts aired after Russia’s invasion of Ukraine on February 24, 2022. The question of how the two conflicting parties, Russia and Ukraine, are portrayed verbally and visually in these shows is specifically emphasized. While the quantitative analysis traces a massive increase in Russian talk show broadcasts since the beginning of the war, the Critical Discourse Analysis demonstrates which strategies are utilized to demonise and defame the Ukrainian side and to legitimise the war. By comparing the current war discourse with the Ukraine discourse in 2014, this study shows that talk shows have undertaken a significant role in supporting the war and have become a puissant didactic tool to influence and manipulate public opinion by perennially repeating key governmental messages and efficiently orchestrating all visual, verbal, and non-verbal means at their disposal.
Die geplante Kindergrundsicherung: ein sinnvoller Ansatz?
Authors: Schnellenbach Jan 
Published: August 2023

Abstract
German policy-makers currently discuss the introduction of a basic income for children (“Kindergrundsicherung”). While many details are still unclear, two main goals are pursued with this instrument: a simplification and unification of a number of different current transfers addressed at children, and an increase in the level of financial support. In this contribution, it is argued that simplification is a reasonable goal, but an increase in transfers is unlikely to yield significant positive economic effects. In particular, a large negative effect on labor market participation of parents is likely, with adverse effects on Germany’s potential output growth. Reasonable goals such as increasing social mobility would be better pursued with investments into the education system, rather than higher transfers. Finally, the fiscal scope of the federal budget will also be limited in the medium term, and therefore any proposal for an expensive expansion of the welfare state should be met with great caution at this time.
Die Kindergrundsicherung – eine gute Investition in die nachwachsende Generation
Authors: Funcke Antje , Menne Sarah 
Published: August 2023

Abstract
Child poverty is a structural problem in Germany. More than one child in five is at risk of poverty. The introduction of a basic child benefit is therefore an effective measure to prevent poverty. To this end, it must cover the age-related needs of children, be effective above all at the lower end of the income scale in order to support in particular those children who grow up in poverty. It must also be transparent and unbureaucratic, making it is as easy as possible for families to claim this benefit.. Simulations show the effects of a basic child benefit in terms of poverty prevention and the labour market, as well as the costs involved. Studies provide evidence that parents use the money for their children and that cash benefits to combat poverty pay off for the state in the long run. In the interest of the next generation, the introduction of a basic child benefit should therefore be a priority.
Exploring the composition of propolis as a subject of processing into food products
Authors: Dvykaliuk Roman 
Published: August 2023

The object of the research is samples of propolis collected by various means from different regions of Ukraine. The main problem that is being solved is the search for optimal, efficient, and food industry-approved methods of collecting propolis as a raw material of processing into food products. The influence of the main methods of propolis collection on the key quality indicators of propolis for its application as a raw material in the food industry has been studied. The differences in the main raw material indicators across regions of Ukraine have been evaluated. The use of propolis collection methods that do not meet the safety requirements of the food industry is a common practice in beekeeping farms. The acceptability of the raw material for use in the food industry is based on its compliance with the requirements of current regulatory and legal acts on quality. However, the updating and revision of regulatory acts in view of production realities occur slowly and with significant delays. This approach reduces the volume of raw materials available for industrial use due to technical barriers and outdated regulatory acts on quality. In the course of the research, results were obtained based on such indicators as the mass fraction of wax, mechanical impurities and flavonoid compounds in propolis collected from three regions of Ukraine. The levels of indicators in the studied samples do not meet the requirements defined by DSTU 4662:2006. At the same time, the regulatory requirements of DSTU 4662:2006 and the research methods do not align with the finalized project ISO/DIS 24381, which is currently in the final stages of adoption as the primary international standard. The use of means of collection in the production of propolis raw materials, which are allowed to come into contact with food products, taking into account also the review of quality regulatory acts and bringing them into line with international documents, can contribute to improving the availability of this product as a food raw material. Propolis producers should pay attention to the sources of propolis located in ecologically clean areas with minimal industrial impact and adhere to proper beekeeping practices to obtain high-quality raw materials. The obtained results can be used to develop an industrial technology for the production of propolis as a raw material for food production.
Chard powder as natural source of nitrites for fermented dried sausages: physicochemical and microbiological studies
Authors: Holovko Tetyana , Pasichnyi Vasyl , Lapytska Nadiia , Holovko Mykola , Vasilenko Olha , Mishan Daria , Dziuba Yaroslav 
Published: August 2023

Nitrites are added to sausage products to accelerate ripening, improve color and microbiological indicators. Chard (Beta vulgaris var. cicla) is one of the best natural sources of nitrites, as it contains a lot of nitrates – 1680 mg/kg in a fresh vegetable. However, chard has not been used as a source of nitrites in sausage technology and in cooking it is used only in fresh, boiled or sautéed form. There are no technologies for industrial drying and processing of chard into powder. Chard powder was obtained by microwave vacuum drying and grinding to 200 microns, which was determined by the appropriate sieve size. Five samples of fermented dried sausages were prepared and evaluated during the ripening process: C1 (without nitrite and sodium nitrate), C2 (100 mg/kg sodium nitrite and 100 mg/kg sodium nitrate), M1 (0.5 % chard powder), M2 (1 % chard powder) and M3 (1.5 % chard powder). With the addition of 1.5 % chard powder (Sample M3), the protein content increased by 22.74 %, ash content increased by 41.82 %, and dietary fiber content increased by 93.75 % compared to the control sample C2. Nitrite was formed from chard powder during the ripening process, especially in treatments M2 and M3. After the entire production process of fermented dried sausages for 35 days, nitrates were detected only in sample C2. The yield of fermented dried sausages enriched with chard powder decreased by 15.95 % compared to the control sample C2. Chard powder improved the microbiological parameters of sausage products, especially in sample M3. The content of aerobic mesophilic bacteria increased by 5.84 % and the content of lactic acid bacteria increased by 8.96 % in sample M3 compared to control C2 after 35 days of fermentation and drying, which is related to the activity of the starter. The organoleptic parameters of fermented dried sausages enriched with chard powder for samples M2 and M3 were better in terms of color and texture. The results of the analysis of nutritional value, pH, nitrites and nitrates indicate the effectiveness of adding 1.5 % chard powder (Sample M3) obtained by microwave vacuum drying as a potential source of nitrites in fermented dried sausages.
Article of RILEM TC 292-MCC: life cycle assessment (LCA) of non-metallic reinforcement for reinforcing concrete: manufacturing, durability, dismantling, recycling and reuse: a review
Authors: Kromoser Benjamin , Butler Marco , Hunger Martin , Kimm Magdalena , Kopf Florian , Mechtcherine Viktor , Pressmair Nadine , Traverso Marzia 
Published: August 2023

AbstractThe potential of non-metallic reinforcement to be an environmentally sustainable alternative to classic steel reinforcement in concrete has become evident in recent years. The high-performance fibres used to produce non-metallic reinforcement elements have a considerably lower weight to transferable tensile forces ratio and are almost non-corrosive under common exposures. These indicators allow for a high environmental performance throughout the extended life cycle of the product. At the same time, substantially more resources and energy per unit weight are required for their production in some cases, e.g. for carbon fibres, compared to conventional reinforcing steel. The presented work addresses this conflict by closing a number of obvious research gaps. Despite an increasing number of publications during the last years, so far there are no comprehensive sets of data available on the environmental impact of various concrete reinforcing materials. With the data compiled in this work, for the first time, an objective comparison of different reinforcement systems (conventional and alternative) is presented that differentiates various environmental impact categories and therefore enables to perform Life Cycle Assessment (LCA). Other often observed shortcomings in sustainability assessments in concrete constructions are that an extension of the service life due to improved durability and the burden a material poses at the end of its life cycle are not considered. Comprehensive reviews of durability considerations help to develop an estimation of the service life. In addition, a state-of-the-art on possible strategies for dismantling, recycling and reuse of alternative non-metallic reinforcement systems shows that the composition of the FRPs, i.e., fibre and matrix materials, not only has a strong influence on the environmental impact in the production phase, but also on the durability as well as on a possible reuse.
EDUCAÇÃO PERMANENTE MEDIADA POR TECNOLOGIAS DIGITAIS NA ATENÇÃO PRIMÁRIA À SAÚDE
Authors: Ferrari Barbosa Debora Nice , De Souza Rockenback Luana Daniela , Bez Marta 
Published: August 2023

RESUMO
Objetivo: Esta pesquisa propõe diretrizes para a Educação Permanente em Saúde na Atenção Básica com o uso de tecnologias digitais. As diretrizes têm como foco todos os profissionais de saúde envolvidos com a atenção primária em um conjunto de ações destinadas a atualizar e a capacitar o profissional para sua prática de trabalho. Método: Para validação, desenvolveu-se uma formação permanente em uma unidade básica de saúde, envolvendo 11 profissionais. A pesquisa orienta-se a partir do método qualitativo, descritivo, com procedimento de pesquisa participante/participante. A coleta das informações foi realizada através de um questionário de pré-capacitação e uma entrevista semiestruturada pós-capacitação. Resultados: Os resultados, analisados seguindo a análise de conteúdo Bardin, demonstraram a viabilidade da aplicação das diretrizes nas unidades da Atenção Primária em Saúde a partir da mediação tecnológica. Conclusão: Como conclusão validou-se as diretrizes propostas e sua aplicação na educação permanente de qualidade para os profissionais de saúde da atenção primária.
Descritores: Educação continuada; Tecnologia digital; Atenção primária à saúde.
Temporal Trends of Functional Outcomes for People of Color and Whites With Traumatic Brain Injury
Authors: Gary Kelli W. , Sima Adam P. , Taylor Joshua P. , Johnson Khalilah R. , Stromberg Katherine A. , O’Neil-Pirozzi Therese M. 
Published: August 2023

Background:Functional independence represents a key outcome for individuals with traumatic brain injury (TBI). The burden of TBI on people of color (POC) is evident when examining functional outcomes post-injury. Previous studies have described racial minority status as being associated with poorer functional outcomes. However, little is known about racial disparities related to the rehabilitation care and outcomes of individuals with traumatic brain injury.Methods:The study used data from the TBI Model Systems (TBIMS) National Database to assess 30-year trends of a total of 17,086 POC and Whites with traumatic brain injuries.Findings:Trends were noted in rehabilitation length of stay (p= 0.002), total Functional Independence Measures (p= 0.0588) and efficiency scores (p= 0.0843) between POC and White participants. Changing trends were not evident in discharge disposition (p= 0.221).Conclusion:Our findings show time-based changes in differences between POC when considering time spent in inpatient rehabilitation and degree of disability following TBI. This study reveals significant differences in length of stay between POC and White populations after weighting to account for age at injury and severity of injury. Prospectively, future research should consider the use of weighted analytic approaches to enable valid interpretation and implications of study findings.
Geografía ambiental en Boyacá
Authors: Ruiz Linares Jorge Vicente , Guzmán Patiño Fabián , Palacios Manrique Adriana 
Published: August 2023

El presente libro consta de cuatro capítulos que abordan la dinámica boscosa y sus conductores, la función de las áreas protegidas en la conservación de los bosques y, finalmente, el deshielo glaciar en el departamento de Boyacá. La dinámica boscosa y sus conductores se estudian inicialmente para 2001-2010 con un sensor de teledetección de resolución espacial grueso como lo es el MODIS. En el Capítulo 2 se estudia tan solo la variación boscosa entre 2009-2015, pero con un sensor de mediana resolución espacial como LANDSAT, además se calculan algunas métricas de ecología del paisaje. Para sorpresa de muchos, Boyacá presentó una ganancia boscosa superior a la deforestación para ambos periodos, aunque en la última ventana de observación esta ganancia boscosa se desaceleró. En el capítulo 3 se examina cuál ha sido el papel de las áreas protegidas a todo nivel, desde las reservas de la sociedad civil, parques municipales y regionales, hasta las áreas protegidas nacionales en el concierto de la protección de la cobertura boscosa. Los resultados son indicativos de ganancia boscosa en todas las ecorregiones presentes en el departamento. Las áreas protegidas nacionales y las reservas de la sociedad civil contribuyeron a conservar la cobertura boscosa, pero no así las áreas protegidas municipales y regionales. Adicionalmente, hubo un aumento de las áreas protegidas a nivel regional y local, que generó una reducción de presión en la cobertura boscosa en los términos de medición del Índice de Riesgo de Conservación de Bosques. El Capítulo 4 estudia el deshielo de la Sierra Nevada del Cocuy y estima que este glaciar, el más grande de Colombia, se extinguirá en su totalidad para mediados del presente siglo si la actual tendencia continúa.
Two-Stage Operations in Patients with Acute Right-sided Colonic Obstruction: a 15-year Single Institution Experience
Authors: Tsai Nien-Ying , Yu Chun-Wei , Hsiao Cheng-Wen , Jao Shu-Wen , Lo Cheng-Hsiang , Yang Chih-Wei , Cheng Yi-Chiao 
Published: August 2023

Objective
The aim of the study was to review the characteristics, surgical outcomes, complications, and long-term outcomes of two-stage operations for acute right-sided colonic obstruction (RSCO) in a single institution.
Summary background data
Although patients with acute RSCO can be treated by resection of the tumor with a primary anastomosis, longer procedure times and bigger wounds can result in more mortality and complications. A two-stage operation by diverting loop ileostomy was another surgical option. However, the outcomes of two-stage operations are lacking.
Methods
The retrospective study reviewed the patients who underwent emergency surgery for acute RSCO in a tertiary center from 2004-2018. First-stage operations other than diverting loop ileostomy, incomplete obstructions that could be treated medically, or pathologies other than adenocarcinomas were excluded. Perioperative data such as first and second operations, operative times, lengths of stay, harvested lymph nodes, and any complications were included. We assessed overall survival (OS) and disease-free survival (DFS) for the oncologic outcomes.
Results
Sixty-nine patients were included. Seven patients had surgical complications related to ileostomy. Three of them died within 30 days of first admission. Thirty-one patients received a second-stage operation by right hemicolectomy. None had anastomosis leakage or 30-day mortality. Only 9.7% of patients had fewer than 12 harvested lymph nodes. One-year OS was 34% in the patients who received only ileostomy, and 89% in those who received two-stage operations (P < 0.001). Among 26 patients who underwent curative resection of tumor, 3-year DFS was 61.5%.
Conclusions
A two-stage operation is associated with low mortality and morbidity rates in an emergency setting. The subsequent right hemicolectomy can harvest more lymph nodes than emergency resection. Long-term survival benefits can be expected.
ACCURACY OF CALCULATIONS OF THE VELOCITY FIELD FROM THE SYSTEM OF VORTEX SEGMENTS USING GRAPHIC PROCESSORS
Authors: Dovgiy Stanislav , Bulanchuk Galyna , Bulanchuk Oleh , Lystopadova Valentyna 
Published: August 2023

The paper explored the possibility of using graphics processors to calculate the velocity field from a system of vortex segments in the ideal fluid three-dimensional simulation. This study is important in view of the large number of methods that use discrete vortex structures in modeling of three-dimensional flows. When simulating numerically urban buildings by vortex methods, a huge number of vortex segments are generated. At the same time, the algorithm complexity for calculating such systems is proportional to the square of the number of elements. This requires significant computing resources, especially over a long time or with a large number of fluid-affected objects. Graphics processors have long been actively used to speed up this kind of calculations, in particular, for vortex structures modeling. However, it should be noted that the maximum simulation speed is achieved when using float type variables and this leads to an increase in calculation errors. Therefore, when using the GPU in methods where it is necessary to calculate the velocity field from a set of vortex elements, for example, point vortices in the method of discrete vortices or vortex segments in the method of discrete vortex frames, we must be sure that we do not lose the accuracy of calculations.
Two systems of vortex segments were considered: segments located along a straight line and segments leaving the plate during flow separation. The main attention is paid to the study of the accuracy of calculations, the formation of data structures and their transfer to the graphics processor. The results indicate that the correct organization of data transfer from the central processor to the graphic processor and vice versa allows to significantly improve the speed of calculations without substantial loss of calculations accuracy.
THE GREEN-RVACHOV QUASI-FUNCTION METHOD IN THE NUMERICAL ANALYSIS OF MICROELECTROMECHANICAL SYSTEMS USING TWO-SIDED APPROXIMATIONS
Authors: Konchakovska Oksana , Sidorov Maxim 
Published: August 2023

The work is devoted to developing a bilateral iterative method of numerical analysis of one electrostatic microelectromechanical system based on the use of the Green – Rvachev quasi-function. Microelectromechanical systems are miniature devices that combine electronic and mechanical components of micron size. Electrostatically activated microelectromechanical systems have certain disadvantages that limit the range of their operation. One of these is the pull-in instability of the functional components of the system, which occurs if the applied voltage difference is above a particular critical value. The mathematical model of the system under consideration in the work is a semi-linear elliptic equation with the Laplace operator and the Dirichlet condition. To construct an approximate solution of the problem, it is proposed to use the methods of nonlinear analysis in semi-ordered spaces, particularly the results of V. I. Opoitsev on the solvability of nonlinear operator equations with a heterotonic operator. The boundary value problem simulating the most straightforward microelectromechanical system under the action of external pressure is reduced to the Urison integral equation using the Green – Rvachev quasi-function method, which makes it possible to expand the application of the method of two-sided approximations for problems in areas of somewhat arbitrary geometry. The paper substantiates the possibility of constructing iterative sequences with two-sided convergence to a positive solution of the problem: the computational scheme is given, the conditions for its convergence to the desired solution are obtained, and the a posteriori error estimate is derived. The method is illustrated by a computational experiment for a problem considered in a rectangular area. The computational experiment results are presented in the form of the surface and lines of the level of the approximate solution, and the two-sided nature of the convergence of the proposed method is also graphically illustrated.
Two-step modification of sepiolite (SDS/isep) and its performance for remediation of Pb contaminated water
Authors: Gu Yiming , Feng Huixia , Wang Bin , Zhang Liang , Liang Sijie , Chen Nali , Tan Lin 
Published: August 2023

Abstract
To enhance the remediation capability of lead (Pb) polluted water, our approach involved a two-step modification of the initial sepiolite (sep) through inorganic mixed solutions and sodium dodecanesulfonate (referring as SDS/isep), and then the modified sepiolite (SDS/isep) is used to remove Pb2+ in Pb-contaminated water. Adsorption experiments showed that the SDS/isep had a significantly higher adsorption capacity for Pb2+ than natural sepiolite (the adsorption capacities before and after modification were 19.04 and 49.10 mg g− 1). A series of characterizations combined with adsorption kinetics and thermodynamics analysis revealed the adsorption mechanism of SDS/isep for Pb2+. The analysis results show that the monolayer adsorption of SDS/isep to Pb2+ is mainly carried out by ion exchange, surface hydroxyl complexation, chemical precipitation, and electrostatic attraction, and this adsorption reaction is a spontaneous exothermic process. The above positive results indicate the superiority of the two-step modification strategy of natural sepiolite proposed in this study.