bluuebunny/crossref_metadata_2025_split huggingface dataset:
Outcomes of in-hospital cardiac arrest managed with and without a specialized code team: A retrospective observational study
Authors: Abu Fraiha Yasmeen , Shafat Tali , Codish Shlomi , Frenkel Amit , Dolfin Dror , Dreiher Jacob , Konstantino Yuval , Abu Abed Said , Schwartz Doron , Fichman Alexander , Kvich Luba , Galante Ori 
Published: September 2024

Background
In-hospital cardiac arrest (IHCA) still has a poor prognosis despite medical advancements in recent decades. Early and high-quality cardiopulmonary resuscitation (CPR), as well as good teamwork, are important prognostic factors. There are no clear guidelines regarding the composition of a dedicated hospital CPR team. We compared outcomes of IHCA treated by a dedicated hospital CPR team compared to ward medical staff with advanced cardiac life support (ACLS) training.

Methods
A single-center retrospective observational study based on the cardiopulmonary resuscitation database of Soroka University Medical Center from January 2016 until December 2019. We compared the results of resuscitations conducted by regular ward medical staff, certified in ACLS, versus those conducted by the dedicated hospital’s CPR team.

Results
Of the 360 CPR events analyzed, 141 (39.1%) ended in return of spontaneous circulation, 70 (19.4%) patients were alive after 24 hours, 23 (6.4%) survived for 30 days, and 18 (5%) survived to discharge. Of those who survived to discharge, 11 (61.1%) had a cerebral performance category (CPC) score of 1–2, and 7 (38.9%) had a score of 3–4 (mean 2.09). Survival-to-discharge was significantly higher in the CPR-team group compared to the ward-team group (7.6% vs. 1.9%, p = 0.013). However, with propensity score analysis the difference in survival became insignificant (RR = 1.97, 95% CI: 0.40–9.63, p = 0.40).

Conclusion
We found no difference in survival between IHCA treated by a dedicated hospital CPR team compared to a standard ward team, both trained with biennial ACLS training. Nevertheless, crude survival-to-discharge was significantly higher in the CPR-team group.
Detection and prevalence of a novel Bandavirus related to Guertu virus in Amblyomma gemma ticks and human populations in Isiolo County, Kenya
Authors: Koka Hellen , Langat Solomon , Oyola Samuel , Cherop Faith , Rotich Gilbert , Mutisya James , Ofula Victor , Limbaso Konongoi , Ongus Juliette R. , Lutomiah Joel , Sang Rosemary 
Published: September 2024

Introduction
Emerging tick-borne viruses of medical and veterinary importance are increasingly being reported globally. This resurgence emphasizes the need for sustained surveillance to provide insights into tick-borne viral diversity and associated potential public health risks. We report on a virus tentatively designated Kinna virus (KIV) in the family Phenuiviridae and genus Bandavirus. The virus was isolated from a pool of Amblyomma gemma ticks from Kinna in Isiolo County, Kenya. High throughput sequencing of the virus isolate revealed close relatedness to the Guertu virus. The virus genome is consistent with the described genomes of other members of the genus Bandavirus, with nucleotides lengths of 6403, 3332 and 1752 in the Large (L), Medium (M) and Small (S) segments respectively. Phylogenetic analysis showed that the virus clustered with Guertu virus although it formed a distinct and well supported branch. The RdRp amino acid sequence had a 93.3% identity to that of Guertu virus, an indication that the virus is possibly novel. Neutralizing antibodies were detected in 125 (38.6%, 95% CI 33.3–44.1%) of the human sera from the communities in this region. In vivo experiments showed that the virus was lethal to mice with death occurring 6–9 days post-infection. The virus infected mammalian cells (Vero cells) but had reduced infectivity in the mosquito cell line (C636) tested.

Conclusion
Isolation of this novel virus with the potential to cause disease in human and animal populations necessitates the need to evaluate its public health significance and contribution to disease burden in the affected regions. This also points to the need for continuous monitoring of vector and human populations in high-risk ecosystems to update pathogen diversity.
Schauder estimates on bounded domains for KFP operators with coefficients measurable in time and Hölder continuous in space
Authors: Biagi Stefano , Bramanti Marco 
Published: September 2024

Abstract
We consider degenerate Kolmogorov-Fokker-Planck operators

ℒ
u
=

∑

i
,
j
=
1

q

a

i
j

(

x
,
t

)

u

x

i

x

j

+

∑

k
,
j
=
1

N

b

j
k

x

k

u

x

j

−

u

t

,

{\mathcal{ {\mathcal L} }}u=\mathop{\sum }\limits_{i,j=1}^{q}{a}_{ij}\left(x,t){u}_{{x}_{i}{x}_{j}}+\mathop{\sum }\limits_{k,j=1}^{N}{b}_{jk}{x}_{k}{u}_{{x}_{j}}-{u}_{t},

such that the corresponding model operator having constant

a

i
j

{a}_{ij}

is hypoelliptic, translation invariant w.r.t. a Lie group operation in

R

N
+
1

{{\mathbb{R}}}^{N+1}

and 2-homogeneous w.r.t. a family of nonisotropic dilations. We assume that the

a

i
j

{a}_{ij}

’s are globally bounded and Hölder continuous in

x

x

(w.r.t. some intrinsic distance induced by

ℒ

{\mathcal{ {\mathcal L} }}

); the matrix

{

a

i
j

}

i
,
j
=
1

q

{\{{a}_{ij}\}}_{i,j=1}^{q}

is symmetric and uniformly positive on

R

q

{{\mathbb{R}}}^{q}

. We prove “partial Schauder a priori estimates” on a bounded open set

Ω
⊂

R

N
+
1

\Omega \subset {{\mathbb{R}}}^{N+1}

, of the kind

∑

i
,
j
=
1

q

(

[

u

x

i

x

j

]

∗
,
α
,
2

x

+

[

u

x

i

x

j

]

∗
,
2

)

≤
c

{

[

ℒ
u

]

∗
,
α
,
2

x

+

[

ℒ
u

]

∗
,
2

+

sup

Ω

∣
u
∣

}

\mathop{\sum }\limits_{i,j=1}^{q}({\left[{u}_{{x}_{i}{x}_{j}}]}_{\ast ,\alpha ,2}^{x}+{\left[{u}_{{x}_{i}{x}_{j}}]}_{\ast ,2})\le c\left\{{\left[{\mathcal{ {\mathcal L} }}u]}_{\ast ,\alpha ,2}^{x}+{\left[{\mathcal{ {\mathcal L} }}u]}_{\ast ,2}+\mathop{\sup }\limits_{\Omega }| u| \right\}

for suitable functions

u

u

, where

[

u

]

∗
,
α
,
2

x

=

sup

(

x
,
t

)

≠

(

y
,
t

)

∈
Ω

d

(

x
,
t

)

,

(

y
,
t

)

2
+
α

∣
u

(

x
,
t

)

−
u

(

y
,
t

)

∣

‖
x
−
y

‖

α

[

u

]

∗
,
2

=

sup

ξ
∈
Ω

d

ξ

2

∣
u

(

ξ

)

∣
.

\begin{array}{rcl}{\left[u]}_{\ast ,\alpha ,2}^{x}& =& \mathop{\sup }\limits_{\left(x,t)\ne (y,t)\in \Omega }{d}_{\left(x,t),(y,t)}^{2+\alpha }\frac{| u\left(x,t)-u(y,t)| }{\Vert x-y{\Vert }^{\alpha }}\\ {{[}u]}_{\ast ,2}& =& \mathop{\sup }\limits_{\xi \in \Omega }{d}_{\xi }^{2}| u\left(\xi )| .\end{array}

Here

‖
⋅
‖

\Vert \cdot \Vert

is a homogeneous norm in

R

N

{{\mathbb{R}}}^{N}

, while

d

ξ

=
dist

(

ξ
,
∂
Ω

)

{d}_{\xi }={\rm{dist}}\left(\xi ,\partial \Omega )

and

d

ξ
,
η

=
min

{

d

ξ

,

d

η

}

{d}_{\xi ,\eta }=\min \left\{{d}_{\xi },{d}_{\eta }\right\}

. We also prove that the derivatives

u

x

i

x

j

{u}_{{x}_{i}{x}_{j}}

are locally Hölder continuous in space and time.
Danish Libraries between ‘Wende’ and ‘Zeitenwende’
Authors: Larsen Svend 
Published: September 2024

Abstract
During the last 30 years great changes have taken place in the Danish library sector. Two trends are notable: the degree of digitization and the reduction in the number of library organizations and the subsequent organization of shared solutions. None of these changes are directly related to the far-reaching political changes signified by the terms ‘Wende’ and ‘Zeitenwende’. The article points to other factors behind Danish library development: digitization and in the final analysis: globalization.
Influence of increasing Integration of Solar photovoltaic on Small Signal and Transient stability of Nigeria Power System
Authors: Olarewaju Richard , Ogunjuyigbe Ayodeji S. , Ayodele Temitope R. , Yusuff Adedayo A. , Mosetlhe Thapelo C. 
Published: September 2024

AbstractIn this paper, the effect of Solar Photovoltaic (SPV) penetration on the damping of critical and inter area modes arising from different penetration level of SPV into the Nigeria national grid has been studied. Also, the possible effects of SPV penetration on Critical Clearing Time (CCT) when a three-phase fault occurs on the grid are studied. The Nigeria 56-bus system was used for the investigation. Sensitivity analyses are carried out to obtain insight into how certain change in parameters affects both the transient and small signal stabilities of the Nigerian power systems. DigSILENT Power Factory was used for the simulation while the analysis was performed in MATLAB. Some of the important findings show that the grid developed increasing amplitude of oscillation from 20 % SPV penetration. There is no steady increase or decrease of CCT with penetration levels. The effect of changes in load on small signal conducted shows that both the real and imaginary load at Kano and Birnin kebbi bus should not exceed 257 MW, 176 MVAR and 171 MW, 134 MVAR, respectively so as to avoid system collapse.
In vitro antibacterial activities, DPPH radical scavenging, and molecular simulation of isolated compounds from the leaves of Rhus ruspolii
Authors: Duguma Tolessa , Melaku Yadessa , Rentsch Daniel , Terfa Akalu , Shenkute Kebede 
Published: September 2024

Abstract

Rhus ruspolii Engl. plant is traditionally used in Ethiopia to treat various diseases. However, the biological and phytochemical properties of the leaves are not well documented. Hence, this study aimed to isolate phytochemicals from R. ruspolii leaves and evaluate their antibacterial and DPPH radical scavenging activities. GC-MS analysis identified 16 compounds from combined fractions 6–10. Chromatographic separation and NMR analysis resulted in the isolation and characterization of palmitic acid (7), 3,4-dihydroxybenzoic acid (17), cupressuflavone (18), amentoflavone (19), shikimic acid (20), avicularin (21), and myricetin-3-O-5′′-acetylarabinofuranoside (22). The inhibition zones of extracts (100 mg/mL) and isolated compounds (5 mg/mL) ranged from 8.33 ± 0.50 to 16.33 ± 0.47 mm against all evaluated bacteria. Of all isolated compounds, compounds 18 and 21 showed good activity against Gram-negative (supported by in silico molecular docking studies) and Gram-positive bacteria, respectively. The lowest (49.1 %) and the highest (91.3 %) DPPH radicals were inhibited by combined fractions 6–10 and compound 17, respectively, at 62.5 μg/mL. The SwissADME online analysis showed compounds 17 and 20 have good solubility and permeability. The Pro Tox 3.0 online analysis revealed none of the isolated compounds are fatal if swallowed. Therefore, the findings of this study support the traditional use of the plant for treating bacteria diseases.
ESTIMATION OF ENERGY AND TIME PARAMETERS OF LASER RADIATION FOR EFFICIENT EXCITATION OF PHOSPHORUS OXIDE FLUORESCENCE
Authors: БОБРОВНИКОВ С.М. , ГОРЛОВ Е.В. , ЖАРКОВ В.И. , МУРАШКО С.Н. 
Published: September 2024

Представлена математическая модель процесса лазерно-индуцированной флуоресценции молекул оксида фосфора (PO), на основе которой получены зависимости интенсивности флуоресценции молекул PO от энергетических и временных параметров возбуждающего лазерного излучения. Установлено, что зависимость величины сигнала флуоресценции PO от плотности энергии возбуждающего излучения имеет вид кривой насыщения; зависимость от длительности импульсов в условиях реальной атмосферы имеет локальный максимум. Показано, что с уменьшением плотности энергии возбуждающего излучения происходит уменьшение оптимальной длительности импульсов.
We present a mathematical model of the process of laser-induced fluorescence of phosphorus oxide (PO) molecules. Based on the model, the dependences of the fluorescence intensity of PO molecules on the energy and time parameters of the exciting laser radiation are derived. It has been established that the dependence of the PO fluorescence signal on the energy density of the exciting radiation has the form of a saturation curve, and the dependence on the pulse duration under real atmospheric conditions has a local maximum. It is shown that the optimal pulse duration decreases with the energy density of the exciting radiation.
RHEOLOGICAL AND COLLOID-STRUCTURAL BEHAVIOUR OF HIGH-VISCOSITY CRUDE OIL AND EMULSION AFTER WAVE ACTION
Authors: ЛОСКУТОВА Ю.В. , ЮДИНА Н.В. 
Published: September 2024

Одной из основных проблем нефтедобычи является образование стабильных водонефтяных эмульсий, вызывающих коррозию трубопроводов, неисправность насосного оборудования, а также отравление катализаторов на нефтеперерабатывающих заводах. Изучены особенности вязкостно-температурного поведения высоковязкой смолистой нефти и 30 % эмульсии Русского месторождения (Ямало-Ненецкий автономный округ) после воздействия электромагнитного и низкочастотного акустического полей. Электромагнитная обработка нефти приводит к понижению температуры фазового перехода и параметра энергии активации вязкого течения. Низкочастотная акустическая обработка эмульсии сопровождается снижением эффективной вязкости и значения коэффициента предела текучести. После комплексного волнового воздействия вязкостно-температурные характеристики нефти продолжают падать, а устойчивость сформированных эмульсий понижается за счет интенсивной коалесценции капель водной фазы. Показано, что после волновой обработки в нефтесодержащих системах уменьшается количество выделенных асфальтенов. После комплексного воздействия их содержание в нефти, напротив, возрастает, а в эмульсии продолжает понижаться. Возможно, это происходит за счет высвобождения в жидкую нефтяную фазу углеводородов, окклюдированных в асфальтеновой структуре.
One of the main problems in oil production is the formation of stable oil-water emulsions that cause corrosion of pipelines, malfunction of pumping equipment, and poisoning of catalysts at refineries. The features of the viscosity-temperature behaviour of high-viscosity resinous crude oil from the Russkoye field (Yamal-Nenets autonomous district) and its 30 wt% emulsion after exposure to electromagnetic and low-frequency acoustic fields are investigated. Electromagnetic treatment of crude oil leads to a decrease in the phase transition temperature and the yield strength coefficient. Low-frequency acoustic processing of the emulsion is accompanied by a decrease in the effective viscosity and the yield strength coefficient. After a complex wave action, the viscosity-temperature characteristics of crude oil continue to fall, and the stability of the formed emulsions decreases due to the intense coalescence of water-phase droplets. It is shown that the amount of released asphaltenes in oil-containing systems decreases after wave treatment. On the contrary, after a complex impact, their content in crude oil increases, while in the emulsion it continues to decrease. This is likely to occur due to the release of hydrocarbons occluded in the asphaltene structure into the liquid oil phase.
PILOT TESTING AND ASSESSMENT OF MICROBIAL CONTAMINATION OF HYDRAULIC FLUID BASED ON HYDROTOL-ITCH HFAE CONCENTRATE FOR HYDRAULIC SYSTEMS OF POWERED MINE SUPPORTS
Authors: ВАЛЬЦИФЕР В.А. , КУЗНЕЦОВА М.В. , ЗАЙЦЕВ А.В. , ВАЛЬЦИФЕР И.В. , САЕНКО Е.В. , НЕСТЕРОВА Л.Ю. , ЛЕВИН Л.Ю. 
Published: September 2024

Приведены результаты опытно-промышленных испытаний и лабораторных исследований огнестойкой гидравлической жидкости, приготовленной на основе разработанного гидравлического концентрата Hydrotol-ITCh HFAE. Показана стабильная работа и сохранение в рабочих параметрах физико-химических свойств разработанной гидравлической жидкости в реальных условиях эксплуатации на контаминированной гидравлической системе предприятия горнорудной отрасли. Установлено, что в течение шести месяцев работы диапазон значений водородного показателя рН, электропроводности, концентрации и бактериологической чистоты гидравлической жидкости значительно не менялся, при этом дозаправки концентратом, как и применения специальных дезинфицирующих и очищающих средств, не требовалось. Методом метагеномного секвенирования впервые изучен микробный состав гидравлической жидкости, подвергавшейся эксплуатации в механизированных крепях предприятия. Молекулярно-генетические методы позволили детектировать широкий спектр бактериальных ассоциантов с различными типами обмена веществ, в том числе анаэробные сульфатредуцирующие бактерии, участвующие в биологической коррозии металлов.
Pilot-scale tests results and laboratory studies of fire-resistant hydraulic fluid based on the developed hydraulic concentrate Hydrotol-ITCh HFAE are presented. Stable operation and operating parameters preservation of the developed hydraulic fluid physicochemical properties under the real conditions on a contaminated hydraulic system of a mining industry enterprise are shown. It was found that during six months of operation, the range of pH values, electrical conductivity, concentration and bacteriological purity did not change significantly, while the concentrate refilling, as well as the use of special disinfectants and cleansers, was not required. For the first time, the microbial composition of hydraulic fluid exposed to operation in the powered supports of the enterprise was studied using the method of metagenomic sequencing. Molecular genetic methods revealed a wide range of bacterial associates with various types of metabolism, including anaerobic sulphate-reducing bacteria involved in the biological corrosion of metals.
ASSESSMENT OF FIRM-SPECIFIC HUMAN CAPITAL IN THE CONTEXT OF EMERGENCE RESEARCH
Authors: СКИПИН Д.Л. , САПОЖНИКОВА А.В. , ЮХТАНОВА Ю.А. 
Published: September 2024

Для каждого предприятия человеческий капитал является одной из главных составляющих достижения результата, выступает в качестве конкурентного преимущества. В исследовании выдвинута гипотеза о влиянии факторов, каузирующих свойство эмерджентности, на самооценку специфического человеческого капитала в разрезе сегментов (отдельных категорий) населения, занятого в экономике (руководители коммерческих структур, предприниматели, имеющие свое дело; работающие по найму). Для измерения специфического человеческого капитала в работе используется адаптированная коллективом авторов под руководством Г.Ф. Ромашкиной методика изучения человеческого капитала А. Мозеса. В результате тестирования установлено, что факторы социального поведения, наряду с традиционными, выступают определяющими в самооценке специфического человеческого капитала и именно они являются предпосылками для возникновения эффекта эмерджентности.
Human capital represents a crucial component for each enterprise, acting as a competitive advantage in achieving favorable outcomes. This study puts forward a hypothesis regarding the influence of factors causal to the emergent property on the self-assessment of firm-specific human capital within specific segments (individual categories) of the employed population, including business structure leaders, entrepreneurs, and employees. To measure firm-specific human capital, we employ a methodology adapted by the team of authors led by G.F. Romashkina from A. Moses’ research on human capital. The findings from our tests establish that social behavior factors, alongside traditional ones, significantly influence the self-assessment of firm-specific human capital, serving as the underlying conditions for the emergence effect.
CITY’S TOURIST ATTRACTIVENESS FROM LOCAL RESIDENTS’ POINT OF VIEW: NETNOGRAPHIC APPROACH
Authors: ВОЛКОВ С.К. 
Published: September 2024

В современных условиях встает острая необходимость поиска новых механизмов развития внутреннего туризма. Для формирования эффективных стратегий развития туристского потенциала территорий нужны данные о туристских предпочтениях и вкусах посетителей и местных жителей. В настоящем исследовании предпринята попытка разработки прикладного инструмента туристского дизайна через нетнографический анализ социальных сетей. На основе анализа выявлены наиболее привлекательные места г. Волгограда. Результаты исследования могут быть использованы для оптимизации распределения туристских ресурсов территорий. Предложенный авторский метод анализа потребительского контента позволяет точно определить каждый туристский кластер и оптимизировать его границы, помогая получить более полную информацию о распределении туристов в пространстве и их предпочтениях.
In today’s context, there is an urgent need to find new mechanisms for fostering domestic tourism. To formulate effective strategies for developing the tourism potential of specific territories, it is necessary to gather data on the tourist preferences and tastes of both visitors and residents. This study aims to create an applied tool for tourism design by utilizing a netnographic analysis of social networks. Through it, we identify the most appealing locations in Volgograd. The findings of this research can be used to optimize the allocation of tourism resources among these territories. The proposed consumer content analysis method, devised by the author, enables precise identification of each tourist cluster and optimization of its boundaries, thereby providing more comprehensive insights into tourist distribution in space and preferences.
Short-Term Outcomes of Totally Extraperitoneal and Extended Totally Extraperitoneal Repair of Ventral Hernia
Authors: Thorat Santosh D. , Bilaskar Rajeev P. 
Published: September 2024

Since the beginning of surgical history, treatment of hernia has evolved through different stages. Belyansky et al. reported that this technique of e-TEP can also be applied for ventral hernia repair in 2017. The retro muscular e-TEP/e-RS approach combines the advantages of the sublay position of the mesh along with the benefits of the minimal invasiveness of the procedure. A prospective observational study was conducted among 60 patients with non-complicated ventral hernia who were randomised into two groups, equally, who were further subjected to either TEP or e-TEP laparoscopic ventral hernia repair. Distribution of median duration of surgery for among the cases studied was significantly higher in Laparoscopic e-TEP repair group as compared to Laparoscopic TEP repair group. e-TEP has advantage over TEP owing to less steeper learning curve, with wide angle view, more degree of movements for instruments, and ergonomically better operative experience.