bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of mode of birth on postpartum sexual function and quality of life among primiparous women in Ile-Ife, Nigeria
Authors: Ayamolowo Sunday Joseph , Adesoji Bukola Abimbola , Oluwatosin Omolabake Ruth
Published: September 2024

Background/Aims

Pregnancy and birth cause hormonal and bodily alterations that can have profound effects on women's sexual function and quality of life. The aim of this study was to evaluate the influence of mode of birth on postpartum sexual function and quality of life in primiparous women from health facilities in Ile-Ife, Nigeria.

Methods

This study used a descriptive design to explore women's sexual function and satisfaction from those attending selected healthcare facilities. Data were collected from 120 women recruited via convenience sampling, using a structured questionnaire between January and June 2023. Data were analysed using the Statistical Product of Service Solution (version 23) software; hypotheses were tested with Pearson's Chi-squared test at P<0.05.

Results

Women most commonly resumed sexual activities within 1 month of giving birth (58.3%). Greater proportions of women who had a spontaneous vaginal birth with episiotomy (26.3%), or vaginal birth without episiotomy (25.0%) reported poor postpartum quality of life than those who had a caesarean section (11.2%). Additionally, more women who had an episiotomy reported lower levels of sexual satisfaction than those who did not have an episiotomy (10.5% vs 0.0% reported lowest level of positive satisfaction; 2.6% vs 2.4% reported highest level of negative satisfaction). Sexual function and quality of life were significantly linked (P<0.001).

Conclusions

Sexual function and quality of life are an important element of postpartum women's health and wellbeing. Mode of birth affected women's postpartum quality of life, with vaginal birth and episiotomy resulting in less satisfaction and lower quality of life.

Implications for practice

Healthcare professionals working in maternity settings should work to prevent injury to the perineum during birth and provide education during the postpartum period to improve women's sexual function and quality of life.
Infection prevention and control: critical strategies for nursing practice
Authors: Hill Barry , Lamichhane Geeta , Wamburu Amsale
Published: September 2024

Infection prevention and control (IPC) is essential in nursing practice to safeguard patient health and reduce healthcare-associated infections. This article explores IPC strategies, including hand hygiene, the use of personal protective equipment, environmental cleaning, safe injection practices, and antimicrobial stewardship. It discusses the implementation challenges and solutions, such as ensuring compliance through education, monitoring and strong leadership. IPC measures are crucial in preventing infections such as catheter-associated urinary tract infections, central line-associated bloodstream infections, surgical site infections, and ventilator-associated pneumonia. By integrating personalised IPC strategies into nursing practice, healthcare providers can significantly improve infection control outcomes and enhance overall patient safety and quality of care.
What enhances the quality of death and dying? A perspective from patients with terminal cancer
Authors: Wajid Maria , Rajkumar Eslavath , Romate John
Published: September 2024

Aim:

This study aimed to determine which factors improve the quality of dying and death from the point of view of patients with cancer who are nearing the end of their lives. The goal was to find out what they think are necessary conditions for a good death and how they would like to be cared for and supported at the end of their lives.

Methods:

This study used an exploratory research approach. Purposive sampling was used to select 21 participants from two hospices in Bengaluru and Hyderabad (Karunashraya and Sparsh), and Karnataka Cancer Hospital in Bangalore, India. Semi-structured interviews were undertaken to obtain data from the patients. Thematic analysis was used to examine the data.

Results:

Four themes were identified: 1) Spirituality and religiosity, 2) socioemotional support, 3) Breaking silence about the stage of the disease and 4) Preparation for and embracing death. There were distinct sub-themes within some of these that were highlighted using quotes from the participants.

Conclusions:

The study provided a comprehensive understanding of end-of-life care, the criteria for a high-quality end of life, strategies for achieving it, and the quality of the dying process and death in advanced cancer patients. Studying patients' experiences will help inform a more robust intervention strategy and action plan to improve the quality of end-of-life care in the Indian community.
Improving testing and treatment of respiratory disease in calves
Authors: Nickals Kelly
Published: September 2024

Kelly Nickalls discusses how CVS' Dyfed Farm Vets is improving the diagnosis and treatment of respiratory disease in calves to reduce antibiotic use
Status and Development Trends of Intelligent Manufacturing in China's Furnishings Industry
Authors: Xiong Xian-qing , Yuan Ying-ying , Fang Lu , Liu Hui , Wu Zhi-hui
Published: September 2024

This paper analyzes the transformation of manufacturing in China's furnishings industry and the status of intelligent manufacturing on the basis of the industry status quo, corporate development around custom furnishings and digital manufacturing, and management and control of manufacturing information. On the basis of an understanding of smart homes, the guiding ideology and key technology in intelligent manufacturing in the furnishings industry involve digital manufacturing. This article comprehensively analyzes the influences of intelligent manufacturing on the furnishings industry related to diverse structure, sales, service, and competition among enterprises. We propose that the development direction of the intelligent manufacturing of furnishings includes digital transformation, collaborative platform construction, and continued improvements to distribution. This article also provides new ideas for the development and transformation of the personally customized furnishings industry and offers implications for digital manufacturing in the furnishings industry in the future.
Contesting Ableist Ideology
Authors: Osieja Eileen Cardona
Published: September 2024

Family–school collaborative practice is protected by legislation: the Individual with Disabilities Education Improvement Act (IDEIA) identifies parents as equal members of a multidisciplinary team. However, the discourse of parent involvement, defined by IDEIA (2004) policy, positions Latinx families of dis/abled children and upholds injustices by ignoring systematic racism, linguicism, and socioeconomic inequities. The current expectations for parent involvement do not consider the cultural patterns of families of dis/abled children as they support the developmental and academic goals of their children. This article problematizes an educational system that seeks to categorize, not only dis/abled children, but view their families as having deficits, which disproportionately impacts multilingual families of dis/abled children. By highlighting the origins, cultures, and experiences of Latinx mothers of dis/abled children, disability critical race (DisCrit) theory is expanded to deeply examine cultural identity to challenge the discourse of parent involvement entangled with linguicism, racism and ableist ideology.
Digital emotions and emotional labour among professionals supporting unaccompanied asylum-seeking and refugee children
Authors: Doná Giorgia , Nanton Roxanne
Published: September 2024

This article examines the intersection between voluntary sector work, emotions, and remote service provision among frontline staff supporting unaccompanied asylum-seeking and refugee children online during and in the aftermath of the COVID-19 pandemic. Drawing on the findings of two interrelated projects, we consider how frontline workers experienced and managed digital emotions and emotional labour. Like professionals in other sectors, staff in the refugee sector experienced stress and overwhelm due to challenges faced during the rapid digitisation of the sector at a time of crisis. The findings also highlighted nuanced emotional experiences that were distinct to staff working remotely with unaccompanied refugee children, such as role dissatisfaction and empathy. Emotional labour was particularly intense for staff working in the refugee sector who needed to establish online boundaries with the young people due to their heightened vulnerabilities. The study also demonstrated that training on how to cope with digital emotions was beneficial to staff’s self-esteem and knowledge.
The universality of the machine: labour process theory and the absorption of the skills and knowledge of labour into capital
Authors: Steinhoff James
Published: September 2024

This article contends that deskilling is best understood not as a distinct phenomenon, but as a component of a process Marx (1993: 694) called ‘absorption’. Absorption involves not only the extraction of capacities from labour but also their implementation in machines. The article reads Braverman’s (1998) analysis of Taylorism as a demonstration of how absorption entails a specific labour process of its own, which I call the absorption process. The nature of the absorption process is contingent on many social factors. This article focuses on a technical factor: the particular machines used to implement captured skills and knowledge, called here the infrastructure of absorption. Since technological capacities are ever-evolving under capital due to the continual revolutionizing of the means of production, infrastructures of absorption change over time and this necessitates new absorption processes. Braverman (1998: 132) pointed to a qualitative change in absorption with the digital computer, which he described in terms of a new ‘universality of the machine’. While Braverman rightly pointed out the computer as a novel infrastructure, he did not discern qualitative changes to the absorption process, seeing instead the extension of Taylorist processes of capture of knowledge and skill. I contend that a qualitative shift has become apparent since the rise of machine learning in around 2015. Machine learning enables a different absorption process of emergence which does not require the codification of captured knowledge. Much labour process theory (LPT) (and adjacent) research presumes that deskilling and automation operate in terms of a process of capture, however, I show that emergence presents qualitatively different means for both. I suggest that the infrastructure of machine learning presents the possibility of task-agnostic automation.
What Have We Learned? Teaching Gender and Fairy-Tale Films Online Redux
Authors: Greenhill Pauline , Orme Jennifer
Published: September 2024

Abstract: In 2016 we published "Teaching 'Gender in Fairy-Tale Film and Cinematic Folklore' Online: negotiating between needs and Wants" in Christa C. Jones and Claudia Schwabe's New Approaches to Teaching Folk and Fairy Tales . When we revisited, reviewed, and revised the course itself in 2022, we foregrounded issues of accessibility, intersectionality, and critical race theory but also dealt with changes in online teaching. We outline our work and strategies in preparing the course with a focus on current issues via practical considerations from our experience. We address sociopolitical shifts as well as the challenges teachers and students are facing.
High-speed arbitrary pure phase hologram generation method based on a specific multi-phase: publisher’s note
Authors: Sun Guobin , Hu Chi , Zhang Jin , Jiang Shilei , Wu Chunfang , Liu Yanyan
Published: September 2024

This note contains corrections to Appl. Opt. 63, 7338 (2024)APOPAI0003-693510.1364/AO.534739.
Study on the improved CGAN based method for the separation of aliased fringes
Authors: xu jianghong , zhou wen , Wu Ke , Xi Jiangtao
Published: September 2024

Traditional Phase-Shifting Profilometry (PSP) requires at least three fringe patterns to project, with accuracy improving as the number of fringe patterns increases. However, using too many fringe patterns can prolong the projection and acquisition time. This paper proposes a deep learning-based method for separating aliased fringe patterns. First, it reduces the number of fringe patterns through entanglement, and then utilizes deep neural network algorithms to separate the entangled fringe patterns, resulting in fringe patterns that are nearly identical to the projected fringe patterns. Experimental results demonstrate that using just two entangled fringe patterns can achieve high-quality 3D reconstruction.
Influence of interpersonal relationship on subjective well-being of college students: The mediating role of psychological capital
Authors: Zhang Jinyong , Zhao Shouying , Deng Huaiqing , Yuan Chuan , Yang Zhi
Published: September 2024

Background

Nowadays, the contradiction between the rapid improvement of people’s material living standard and the loss of spiritual pursuit or the increase of pressure is becoming more and more serious.With the impact of the new corona-virus pandemic, the employment situation of college students is more severe. This leads to the growth of psychological problems and alienation behavior of college students. In the promoting positive psychology and enhancing the happiness of the whole people, the relationship between interpersonal relationship and subjective well-being of college students is an interesting and valuable research topic.

Methods

The structural model with AMOS21.0 was used to verify the mediating effect of psychological capital between interpersonal relationship distress and SWB from the survey data of 673 college students.

Results

The interpersonal distress has a negatively correlated with psychological capital and SWB, while psychological capital has a positively correlated with SWB. Psychological capital has Partial mediating effect between interpersonal distress and SWB, and the indirect effect accounts for 57% of the total effect.

Conclusion

This study indicates that schools should pay attention to education and intervention in psychological capital, except for strengthening knowledge and skill training of college students in how to communicate with others.
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.
Species diversity of mosquitoes (Diptera: Culicidae), larval habitat characteristics, and potential as vectors for lymphatic filariasis in Central Bengkulu Regency, Indonesia
Authors: Kermelita Deri , Hadi Upik Kesumawati , Soviana Susi , Tiuria Risa , Supriyono Supriyono
Published: September 2024

Background and Aim: Lymphatic filariasis (LF) is a vector-borne disease in various regions of Indonesia. The transmission dynamics within a locality are intricately linked to the presence of the pathogen (microfilaria), definitive host (humans), intermediate host (mosquitoes), reservoir, and environmental factors. The geographic landscape of Central Bengkulu Regency, which is characterized by plantations, marshlands, and forests, serves as a suitable habitat for mosquitoes. Understanding species diversity, vector behaviors, habitat characteristics, and microfilarial presence is crucial for devising effective and efficient control strategies. This study aimed to identify species diversity, assess biting patterns, characterize larval habitats, and detect microfilarial presence in mosquitoes.

Materials and Methods: Mosquito collection was conducted using human landing collection (HLC) and resting collection indoors and outdoors for 6 months at a frequency of twice monthly from November 2022 to May 2023. The larvae were collected using dippers and pipettes. Adult mosquitoes and larvae were identified at the species level and analyzed using diversity indices. The measured larval bioecological parameters included physical, chemical, and biological conditions. The mosquito density obtained through HLC was calculated using the man-hour density (MHD) and man-biting rate (MBR) formulas. The presence of microfilaria was confirmed using a polymerase chain reaction.

Results: A total of 808 adult mosquitoes from five genera and 18 species were captured, along with 485 larvae from four genera and eight species. The mosquito diversity was moderate. The dominant adult species included Armigeres subalbatus (44.8%), whereas Aedes albopictus (25.4%) and Ar. subalbatus (22.3%) were abundant larvae. The highest larval density was observed in natural ponds. The average MBR was three mosquitoes per person per night, with fluctuating nightly activity (mean MHD of 1.8 mosquitoes per person per hour). Larval habitats had temperatures of 25.4°C–28.7°C, illumination of 224–674 lx, and pH of 7.1–7.9, with over half being turbid and nearly two-thirds lacking predators. Microfilariae were not detected in the tested mosquitoes.

Conclusion: The presence of mosquitoes, their habitat, and the high density of Ar. subalbatus contributes to the transmission of LF in Central Bengkulu Regency, Indonesia.

Keywords: Bengkulu, characteristics, diversity, filariasis, habitat, vector.
Ground-state solutions of a Hartree–Fock type system involving critical Sobolev exponent
Authors: Zhu Xiaoli , Min Zushun
Published: September 2024

In this paper, ground-state solutions to a Hartree–Fock type system with a critical growth are studied. Firstly, instead of establishing the local Palais–Smale (P.-S.) condition and estimating the mountain-pass critical level, a perturbation method is used to recover compactness obtain the existence of ground-state solutions. To achieve this, an important step is to get the right continuity of the mountain-pass level on the coefficient in front of perturbing terms. Subsequently, depending on the internal parameters of coupled nonlinearities, whether the ground state is semi-trivial or vectorial is proved.
Áttekintés a nem szó szerinti jelentések megértése során aktiválódó agyterületekről
Authors: Svindt Veronika
Published: September 2024

Jelen tanulmány célja a pragmatikai megértés neurális hátterének feltérképezése. Ehhez egy, a nemzetközi szakirodalomban jól ismert módszert, az ALE (activation likelihood estimation) metaanalízist alkalmaztam. A tanulmányok szűrése és válogatása után 63 tanulmányt elemeztem. A vizsgált pragmatikai jelenségek a metafora, metonímia, irónia, szarkazmus, implikatúrák, beszédaktusok, idiómák és szólások voltak. A metaanalízis 1204 résztvevő adataiból készült. 590 aktivációs gócot azonosítottam a figuratív > szó szerinti megértés kontrasztjára. Az azonosított aktivációs gócok egy része az agynak egyrészt valamely strukturális csomópontja, mint a precuneus, a superior frontális gyrus, a superior parietális lebeny, az insula, a hippocampus vagy a thalamus. Másrészt az azonosított területek között agyi funkcionális hálózatok (mint pl. a nyelvi vagy a tudatelméleti hálózat) csomópontjait is megtaláljuk, mint bilaterálisan a precuneus, a frontális lebeny laterális és mediális gyrusai, a temporális lebeny superior és középső gyrusai, az amygdala; valamint a bal inferior és superior parietális lebeny, az insula és a cinguláris kéreg.
Ecosistema digital para el fortalecimiento de cadenas productivas: una revisión sistemática (2005-2024)
Authors: Ruiz Ruiz Luis , González Vásquez Joe Alexis , Buchelli Perales Orivel Jackson , Alayo Villanueva Elar Amado , Chinchayhuara Diego Denis
Published: September 2024

Introduction/Objectives: This Systematic Review (SR) explores digital ecosystems and their impact on strengthening productive chains. The objectives include analyzing the current state, characteristics, benefits, challenges, and opportunities associated with implementing digital ecosystems. The study focuses on the present state and implications of these ecosystems for enhancing productive chains. Methodology: Conducted according to PRISMA 2020 guidelines, this review includes 87 relevant articles on digital ecosystems sourced from Elsevier’s Scopus (56), ProQuest (21), SciELO (6), and Google Scholar (4). Results: There has been a notable increase in publications on this topic, with significant interest in original research articles and substantial contributions from the United States, Germany, and Russia in technological innovation. However, there is a significant gap in empirical research validating theoretical foundations. Digital ecosystems are emerging as key enablers of digital transformation and collaborative value generation, characterized by business cooperation, collaborative integration, automation, and innovation. Despite benefits such as increased efficiency and cost reduction, challenges include political barriers, limited connectivity, infrastructure issues, resistance to change, digital skills gaps, and high initial investment costs. Conclusions: The systematic review reveals a significant gap in research on digital ecosystems, highlighting a lack of empirical studies to validate existing theoretical foundations. This presents a clear opportunity for future research in this field. In analyzing the implementation of digital ecosystems in organizations, collaborative systems are emphasized as drivers of efficiency and cost reduction. Strategically addressing these challenges is essential for the successful implementation of digital ecosystems and maximizing their impact.
A Knowledge Translation Strategy to Promote the Health and Social Development of Students: An Evaluation Study
Authors: Dagenais Christian , Proulx Michelle , Morin Clara , Haddad Roula
Published: September 2024

Objective: In this paper, we evaluate the implementation of a knowledge translation strategy aimed at optimizing the use and deployment of the ÉKIP reference framework within both the education (preschool, primary, secondary) and the health and social services networks of the province of Quebec (Canada) and their partner organizations. Methods: We collected data on Web-based use of the reference framework (ÉKIP Online) and promotional newsletters in spring 2021. We then compared these with other data collected and analyzed in September 2022. We subsequently conducted 19 semi-structured interviews to explore the extent and nature of ÉKIP Online use, identify enabling and inhibiting factors, and extract recommendations for the project’s continuance. Results: The increase in use of ÉKIP Online and its uptake tools suggested that communities had become increasingly interested in and informed about the reference framework. Nevertheless, the qualitative component of the evaluation offered a nuanced perspective on its use and deployment. Conclusion: The evaluation documented a series of levers to ensure the greatest possible reach of the reference framework and its use within the networks. Further efforts are necessary to reach more schools and support use and deployment.
Creation as Sacrament: An Orthodox Contribution to the Cultivation of an Ecological Ethos
Authors: Coman Viorel
Published: September 2024

This article looks at the contribution of Dumitru Stăniloae’s theology of the sacramentality of creation for the cultivation of an ecological sensitivity, attending in particular to his ideas that the entire created reality is God’s gift to humanity and that the cosmos has a mysterious or apophatic dimension. This helps in developing a Christian ecology whose central idea is of non-possession or non-domestication of the world by human beings. Understanding the world thus is seen as world-aﬃrming and a reminder that creation cannot be treated as mere utility, property, or raw material, but is always also a vehicle of grace and spiritualization.
Liberation against Entitlement: Conflicting Theologies of Grace and Clashing Populisms by Tim Noble
Authors: Jandejsek Petr
Published: September 2024

Book review on Tim Noble, Liberation against Entitlement: Conflicting Theologies of Grace and Clashing Populisms. Eugene, OR: Pickwick Publications, 2022, 262 p.
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

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

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

In 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

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.
Fostering customer engagement behaviour with gamified loyalty programmes: a study from the “value get, value give” perspective
Authors: Catalán Sara , Marchan Julia
Published: September 2024

This study applies the “value get, value give” framework to explain how gamified loyalty programmes create value for firms. This study proposes a model which has been tested and whose aim is to analyse whether the perceived value offered by a gamified loyalty scheme generates enough customer satisfaction and whether this subsequently transforms into customer engagement behaviour that adds value to firms. Data from 134 active users of the gamified loyalty programme ‘Más Renfe’ belonging to Renfe, the Spanish leader in rail transport for passengers and goods, were analysed using partial least squares structural equation modelling. The findings show that hedonic and financial value increase user satisfaction, whereas preferential treatment and personalisation value do not. In addition, greater satisfaction with loyalty schemes facilitate customer engagement behaviour. This study contributes to the existing literature by providing empirical evidence of the effectiveness of real gamified loyalty programmes in promoting engagement behaviour that creates value for companies.
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.
ACQUISITION OF MUSIC THEORETICAL KNOWLEDGE IN A SOFTWARE ENVIRONMENT
Authors: Valchev Dimitrov Milen
Published: September 2024

Expanding the scope and application of modern technologies in pedagogical practice is an actual problem, significant for the Bulgarian education system. The article presents part of a scientific study that aims to investigate the extent of their use in the school system during the period 2009-2013