bluuebunny/crossref_metadata_2025 huggingface dataset:
Differences in the length of postoperative care of endoscopic endonasal surgery in simple and complex surgical procedure groups
Authors: Sutikno Budi , Fauzi Fuad , Ardani Diar Mia , Mailasari Anna
Published: June 2022

Background: The rapid development of endoscopic endonasal surgery has made the procedure widely used in nasal and sinus surgery. Endoscopic endonasal surgery is a minimally invasive procedure, but the possibility of postoperative damage to the sinonasal mucosa cannot be ruled out. The aim of this study was to analyze the difference in the length of postoperative care between complex and simple endoscopic endonasal surgeries which can be used as a reference in planning postoperative care.  

Methods: This was a retrospective cross-sectional observational study. The participants were divided into two groups, i.e., simple, and complex surgical procedures groups. The simple procedure group consisted of middle meatal anstrostomy, uncinectomy, endoscopic septoplasty, and endoscopic turbinoplasty. The complex procedure group included frontal sinusotomy, sphenoidectomy, as well as anterior and posterior ethmoidectomy. The length of postoperative care between the two groups were measured and analyzed using the Chi-square test.  

Results: The median length of care in the complex procedure group was significantly longer than that in the simple procedure group (p = 0.028), 12 weeks and 9 weeks, respectively. The number of postoperative outpatient visits was significantly less in the simple procedure group compared with the complex procedure group (Median 4 vs. 5; p=0.015). There was a significant correlation between length of care and the endonasal endoscopic surgical procedure group (p = 0.023).  

Conclusions: The complex endoscopic endonasal surgery group required a longer length of care and more postoperative outpatient visit than the simple procedure group.
Closing the communication gap in neonatal inter-hospital transfer: a neonatal referral form for resource-limited settings - a modified e-Delphi-consensus study
Authors: Mwizerwa Oscar , Umuhoza Christian , Corden Mark H. , Lissauer Tom , Cartledge Peter Thomas
Published: June 2022

Background: Standardised neonatal referral forms (NRFs) facilitate effective communication between healthcare providers and ensure continuity of care between facilities, which are essential for patient safety. We sought to determine the essential data items, or core clinical information (CCI), that should be conveyed for neonatal inter-hospital transfer in resource-limited settings (Rounds 1 to 3) and to create an NRF suitable for our setting (Round 4).

Methods: We conducted an international, four-round, modified Delphi-consensus study. Round-1 was a literature and internet search to identify existing NRFs. In Round-2 and -3, participants were Rwandan clinicians and international paediatric healthcare practitioners who had worked in Rwanda in the five years before the study. These participants evaluated the draft items and proposed additional items to be included in an NRF. Round-4 focused on creating the NRF and used five focus groups of Rwandan general practitioners at district hospitals.

Results: We identified 16 pre-existing NRFs containing 125 individual items. Of these, 91 items met the pre-defined consensus criteria for inclusion in Round-2. Only 33 items were present in more than 50% of the 16 NRFs, confirming the need for this consensus study. In Round-2, participants proposed 12 new items, six of which met the pre-defined consensus criteria. In Round-3, participants scored items for importance, and 57 items met the final consensus criteria. In Round-4, 29 general practitioners took part in five focus groups; a total of 16 modifications were utilised to finalise the NRF.

Conclusions: We generated a novel, robust, NRF that may be readily employed in resource-limited settings to communicate the essential clinical information to accompany a neonate requiring inter-hospital transfer.
On the uniqueness of two different classes of meromorphic functions under the sharing of two sets of rational functions
Authors: Banerjee Abhijit , Kundu Arpita
Published: June 2022

We study the uniqueness problem of two special classes of meromorphic functions sharing two sets of small functions. One of the considered classes has the property to include the Selberg class L functions, while the other class is comprising of arbitrary meromorphic functions having finitely many poles. We obtain a number of results which extend and improve a number of earlier results such as Li [ Proc. Amer. Math. Soc., 138 (2010), 2071-2077], Lin and Lin [Filomat 30 (2016), 3795-3806] and others. We have also been able to replace the strict CM (IM) sharing of the sets in our theorems to almost CM (almost IM) sharing.
Coefficients bounds for a family of bi-univalent functions defined by Horadam polynomials
Authors: Wanas Abbas Kareem , Frasin Basem  A. , Swamy Sondekola R. , Sailaja Yerragunta
Published: June 2022

In the present paper, we determine upper bounds for the first two Taylor–Maclaurin coefficients |a2| and |a3| for a certain family of holomorphic and bi-univalent functions defined by using the Horadam polynomials. Also, we solve Fekete–Szegö problem of functions belonging to this family. Further, we point out several special cases of our results.
On the bicomplex Gaussian Fibonacci and Gaussian Lucas numbers
Authors: Özkan Engin , Kuloğlu Bahar
Published: June 2022

We give the bicomplex Gaussian Fibonacci and the bicomplex Gaussian Lucas numbers and establish the generating functions and Binet’s formulas related to these numbers. Also, we present the summation formula, matrix representation and Honsberger identity and their relationship between these numbers. Finally, we show the relationships among the bicomplex Gaussian Fibonacci, the bicomplex Gaussian Lucas, Gaussian Fibonacci, Gaussian Lucas and Fibonacci numbers.
Natural vibrations of curved nano-beams and nano-arches
Authors: Mubasshar Shahid , Jaan Lellep
Published: June 2022

The natural vibrations of curved nano-beams and nano-arches are studied. The nano-arches under consideration have piecewise constant thickness; these are weakened with stable cracks located at re-entrant corners of the steps. A method of determination of natural frequencies is developed making use of the method of weightless rotating spring. The aim of the paper is to assess the sensitivity of the eigenfrequencies on the geometrical and physical parameters of the nano-arch. The results of the calculations favourably compare with similar works of other researchers.
The Sasaki-Kenmotsu manifolds
Authors: Gezer Aydin , Beldjilali Gherici
Published: June 2022

In the present paper, we introduce a new class of structures on an even dimensional differentiable Riemannian manifold which combines, well known in literature, the Sasakian and Kenmotsu structures simultaneously. The structure will be called a Sasaki–Kenmotsu structure by us. Firstly, we discuss the normality of the Sasaki–Kenmotsu structure and give some basic properties. Secondly, we present some important results concerning with the curvatures of the Sasaki–Kenmotsu manifold. Finally, we show the existence of the Sasaki–Kenmotsu structure by giving some concrete examples.
Two new examples of Banach spaces with a plastic unit ball
Authors: Zavarzina Olesia , Leo Nikita , Haller Rainis
Published: June 2022

We prove that Banach spaces ℓ1 ⊕2 R and X ⊕∞ Y , with strictly convex X and Y , have plastic unit balls (we call a metric space plastic if every non-expansive bijection from this space onto itself is an isometry).
Diophantine equations involving the bi-periodic Fibonacci and Lucas sequences
Authors: BEHLOUL Djilali , DJOUMAKH Akila , AIT-AMRANE Lyes
Published: June 2022

In this paper, we present new identities involving the biperiodic Fibonacci and Lucas sequences. Then we solve completely some quadratic Diophantine equations involving the bi-periodic Fibonacci and Lucas sequences.
About the transitivity of the property of being Segal topological algebra
Authors: Abel Mart
Published: June 2022

We show that if (A, f, B) and (B, g, C) are left (right or two-sided) Segal topological algebras for which g(f(A))⊆ g(B)g(f(A))  (g(f(A))⊆ g(f(A))g(B)  or  g(f(A))⊆ g(B)g(f(A))∩ g(f(A))g(B), respectively), then (A, g∘ f, C) is also a left (right or two-sided, respectively) Segal topological algebra.
Results of treatment of cancer patients with peritoneal carcinomatosis
Authors: Bondar O. , Rybin A. , Varabina A.
Published: June 2022

Objective: At present, common forms of cancer of different localization can not be ignored. New approaches to the treatment of metastatic lesions have some success in clinical application. This study is devoted to the experience of using the technology of cytoreductive surgery and hyperthermic intraoperative intraperitoneal chemotherapy (HIPEC) in practice, as well as the analysis of overall and relapse-free survival in the examined groups of patients.

Patients and methods: A total of 119 people were recruited from 2013 to 2020 inclusive. Patients were divided into two groups: the clinical control group (n = 53) consisted of individuals who underwent suboptimal cytoreduction; in the main group (n = 66) there were patients who performed optimal or complete cytoreductive volume and in some cases underwent intraoperative hyperthermic chemotherapy. Patients diagnosed with stage IIIC ovarian cancer were treated. In the initial analysis of these groups, time indicators (period before surgery, duration of surgery, number of postoperative bed-days), as well as the presence and nature of complications in the postoperative period were taken into account.

Results: The analysis showed an increase in relapse-free survival from 10 months in the control group to 13-19 months in the main group, also significantly increased (from 5 to 22%) the number of complications of class III-IV in HIPEC.

Conclusion: The study is prospective and retrospective, recruitment into groups has been conducted since 2013. Observation of the studied groups continues. The expected results will be a significant discrepancy between overall and recurrence-free survival in the study groups.
Construcción social de realidad y memoria en El Papel Periódico de Santafé de Bogotá (1791-1797)
Authors: Manrique-Grisales Jorge , González Cruz David , Gadea Aiello Walter Federico
Published: June 2022

Este estudio tuvo como objetivo conocer las agendas informativas y los procesos de construcción de realidad y memoria desde las notas publicadas en El Papel Periódico de Santafé de Bogotá (1791-1797), primer periódico que circuló en Colombia. Se analizaron los 930 artículos publicados entre 1791 y 1797 mediante el método históricodiscursivo (mhd) que evalúa elementos de la agenda informativa como personajes, instituciones, conflictos, ideología y valores junto con las intencionalidades discursivas del editor del semanario, Manuel del Socorro Rodríguez. Se comprobó que el eje informativo de esta publicación se orientó desde los intereses de la corona española y la iglesia católica, que tuvo como soportes ideológicos la propaganda y la difusión de las ideas de bien común y prosperidad de la Ilustración de finales del siglo xviii, impulsadas por la élite santafereña y la propia administración virreinal. También se evidenció el interés por la ciencia, la literatura, la educación, la historia y la economía política, entre otros temas.
Collaborations and Innovation in Partitioned Industries: An Analysis of U.S. Feature Film Coproductions
Authors: Jia Ruo , Lewis Demetrius , Negro Giacomo
Published: June 2022

In partitioned industries, a small number of generalist organizations occupy the center of the market, whereas a much larger number of specialists populate the periphery. The role of collaborations within and across the center-periphery boundary in these industries has been underexplored. We propose that hybrid collaborations between organizations in the center and periphery—combining the broad resource base of generalists with the focused knowledge of specialists—encourage product innovation and result in enhanced organizational adaptation for both populations. We test these ideas in the U.S. motion picture industry, where film production companies face significant unpredictability of success and fluctuating audience tastes. We find that generalist and specialist production companies that partner to produce films introduce more creative content in their films compared with those that collaborate in the same population or produce alone. Generalist film companies benefit further from these collaborations through increased competitive differentiation of their films from other generalists in subsequent productions, whereas specialists experience lower exit rates. These findings suggest that interorganizational collaborations between generalists and specialists provide effective adaptive strategies to compete in markets with uncertain demand and shifting audience preferences. These strategies can sustain, rather than weaken, industry partitioning.

Funding: This work was funded by an ad hoc research grant from Emory University.

Supplemental Material: The online appendix is available at https://doi.org/10.1287/orsc.2022.1600 .
Religion at the Ballot Box: The Politics of Indonesia’s Blasphemy Laws
Authors: A’yun Rafiqa Qurrata
Published: June 2022

Abstract: This article examines the persistence of blasphemy laws and their increasing use during Indonesia’s democratic era. Phenomena related to blasphemy cases have been explained by other scholars in terms of Islamist fundamentalism or institutional weakness. However, in this article I propose that Indonesia’s recent experience should also be seen as resulting from particular political circumstances despite the rising trends of religious belief or conservatism and institutional problems in the country. More specifically, this article considers how blasphemy laws are used as a political tool to mobilize support from conservative religious groups in contests over power and wealth, which I argue helps to explain the continued operation of the problematic laws in Indonesia’s democratic context. The use of the laws, therefore, tends to align with political events and electoral contests as a crucial element in analyzing blasphemy issues in Indonesia.
Hofstadter butterfly and topological edge states in a quasiperiodic photonic crystal cavity array
Authors: Ye Fan , Sun Xiankai
Published: June 2022

Quasiperiodic structures with additional synthetic degrees of freedom have recently been recognized as a promising way for investigating high-dimensional topological phases with lower physical dimensions. Here, we investigated the well-known Harper–Aubry–André model on an integrated photonic platform by proposing a new design of a quasiperiodic photonic crystal (PhC) cavity array. This array is composed of closely coupled H1 PhC cavities with their cavity lengths being periodically modulated in the real space. The frequency spectrum of the structure shows the main features of the Hofstadter butterfly, which is one of the most important phenomena in the Harper–Aubry–André model. By varying the modulation phase, this structure exhibits nontrivial topology, which supports strongly localized topological edge states. These results have shown that quasiperiodic PhC cavity arrays can serve as the testbed for studying topological phases and new topological phenomena on an integrated platform.
Primary care experiences among Brazilian adults: Cross-sectional evidence from the 2019 National Health Survey
Authors: Macinko James , Mullachery Pricila H.
Published: June 2022

Objectives

The Brazilian Family Health Strategy (FHS) is strongly associated with better health system performance, but there are no nationally-representative data examining individual-level primary care experiences in the country. Here, we examine reports of primary care experiences among adults with different forms of healthcare coverage (FHS, “traditional” public health posts, and private health plans).

Methods

Data are from the 2019 National Health Survey that included a shortened version of the Primary Care Assessment Tool (PCAT). PCAT questions were administered to a subsample of randomly-selected adults who had a doctor visit within the past 6 months and sought care in a primary care setting (9677 respondents). We used linear regression to examine the association between type of healthcare coverage and PCAT scores adjusted for sex, age, socioeconomic status, health status, geographic region and state of residence.

Results

Primary care experiences in the sample of Brazilians who had a doctor visit 6 months prior to the survey averaged a modest PCAT score of 57 out of 100. Regression models show that users of the FHS had superior primary care experiences, but with large variations across Brazilian regions and states. Individuals selected to respond to the PCAT questions were more likely to be female, older, and poorer, and to be in worse health than the general population.

Conclusions

Brazil’s FHS is associated with modest, but higher-reported primary care experiences than both traditional public health posts and those who have a private health plan. Future iterations of the PCAT module could enhance generalizability by including individuals who had a doctor visit in the past 12 (instead of 6) months.
Indigenous Peoples and the Second World War: The Politics, Experiences and Legacies of War in the US, Canada, Australia and New Zealand, R. Scott Sheffield and Noah Riseman (2019)
Authors: Leenen-Young Marcia
Published: June 2022

Review of: Indigenous Peoples and the Second World War: The Politics, Experiences and Legacies of War in the US, Canada, Australia and New Zealand, R. Scott Sheffield and Noah Riseman (2019)

Cambridge: Cambridge University Press, 364 pp.,

ISBN 978 1 10842 463 9 (hbk), £75.00
A History of Kiribati: From the Earliest Times to the 40th Anniversary of the Republic, Michael Ravell Walsh (2020)
Authors: Smith Roy
Published: June 2022

Review of: A History of Kiribati: From the Earliest Times to the 40th Anniversary of the Republic, Michael Ravell Walsh (2020)

Independently Published, 555 pp.,

ISBN 979 8 69535 895 7 (pbk), £15.00
The Dark Island: Leprosy in New Zealand and the Quail Island Colony, Benjamin Kingsbury (2019)
Authors: Bryder Linda
Published: June 2022

Review of: The Dark Island: Leprosy in New Zealand and the Quail Island Colony, Benjamin Kingsbury (2019)

Wellington: Bridget Williams Books, 208 pp.,

ISBN 978 1 98854 598 1 (pbk), NZ$39.99
Morganeering, Or the Triumph of the Trust: A Satirical Burlesque on the Worship of Wealth, Alexander William Bickerton, edited with notes and introduction by Lyman Tower Sargent (2020)
Authors: Chandler David
Published: June 2022

Review of: Morganeering, Or the Triumph of the Trust: A Satirical Burlesque on the Worship of Wealth, Alexander William Bickerton, edited with notes and introduction by Lyman Tower Sargent (2020)

Dunedin: University of Otago, lvi + 253 pp.,

ISBN 978 0 47355 007 3 (pbk)

ISBN 978 0 47355 009 7 (PDF)
Dark Paradise: Pacific Islands in the Nineteenth-Century British Imagination, Jenn Fuller (2016)
Authors: Sedgwick Laura
Published: June 2022

Review of: Dark Paradise: Pacific Islands in the Nineteenth-Century British Imagination, Jenn Fuller (2016)

Edinburgh: Edinburgh University Press, 256 pp.,

ISBN 978 1 47441 384 8 (hbk), £75.00
Predicting Financial Risk Associated to Bitcoin Investment by Deep Learning
Authors: Aljojo Nahla
Published: June 2022

The financial risk of investing in Bitcoin is increasing, and everyone partic-ipating in the transaction is aware of it. The rise and fall of bitcoin’s value is difficult to predict, and the system is fraught with uncertainty. As a result, this study proposed to use the «Deep learning» technique for predicting fi-nancial risk associated with bitcoin investment, that is linked to its «weighted price» on the bitcoin market’s volatility. The dataset used included Bitcoin historical data, which was acquired «at one-minute intervals» from selected exchanges of January 2012 through December 2020. The deep learning lin-ear-SVM-based technique was used to obtain an advantage in handling the high-dimensional challenges related with bitcoin-based transaction transac-tions large data volume. Four variables («High», «Low», «Close», and «Volume (BTC)».) are conceptualized to predict weighted price, in order to indi-cate if there is a propensity of financial risk over the effect of their interaction. The results of the experimental investigation show that the fi-nancial risk associated with bitcoin investing is accurately predicted. This has helped to discover engagements and disengagements with doubts linked with bitcoin investment transactions, resulting in increased confidence and trust in the system as well as the elimination of financial risk. Our model had a significantly greater prediction accuracy, demonstrating the utility of deep learning systems in detecting financial problems related to digital currency.
PREDIÇÃO DA PERDA DE SOLO POR EROSÃO LAMINAR NA BACIA HIDROGRÁFICA DO RIBEIRÃO BOCAINA, PASSOS-MG
Authors: Rocha Letícia Bueno de Oliveira , Magri Rômulo Amaral Faustino
Published: June 2022

O objetivo dessa pesquisa foi predizer a perda de solo por erosão laminar na bacia hidrográfica do Ribeirão Bocaina (BHRB), situada no munícipio de Passos-MG. A modelagem foi realizada por meio da aplicação da Equação Universal de Perdas de Solos (EUPS). Os fatores do meio físico e antrópico influentes no processo de erosão hídrica considerados foram: erodibilidade, erosividade, topográfico e cobertura vegetal e práticas conservacionistas. Todos os fatores foram integrados e espacializados no Sistema de Informação Geográfica (SIG), com auxílio de técnicas de geoprocessamento. Como resultados, o Potencial Atual à Erosão (PAE) apresentou 55,4% da área total da BHRB com perdas de solo menores que 10 t.ha-1.ano-1, com predomínio da classe “ligeira” e 44,6% da área com perdas maiores que 10 t.ha-1.ano-1 com predomínio da classe “muito alta”. Há locais com perdas de solo elevadas, principalmente em áreas de culturas agrícolas, com solos mais suscetíveis à erosão e declividades acentuadas. A utilização da EUPS para fins de qualificação de áreas vulneráveis à erosão apresentou vantagens e mostrou uma ferramenta eficaz para avaliar a vulnerabilidade à erosão do solo e auxiliar no planejamento ambiental e conservacionista do uso dos solos e recursos hídricos da Bacia Hidrográfica do Ribeirão Bocaina.
Déni et (d)énonciation du racisme anti-asiatique au temps de la Pandémie de Covid-19
Authors: Wang Simeng , Madrisotti Francesco , Li Yong , Luu Chloé , Yan Ran
Published: June 2022

En France, comme dans le monde, la pandémie de Covid-19 a porté à leur paroxysme les discours et actes racistes envers les populations d’origine chinoise et, plus largement, asiatique. En nous appuyant sur les verbatims des personnes enquêtées (N=106), réinscrits dans leurs biographies et situés dans la temporalité de la pandémie, cet article montre la variété et l’évolution des postures face au racisme anti-asiatique au sein de la population chinoise en France. Premièrement, nous étudions la posture du déni, présente notamment chez les primoarrivants. Puis, nous examinons la pluralité des registres de (d)énonciation du racisme de la part de primoarrivants, comme de descendants. Enfin, nous analysons les logiques de politisation et d’action collective qui en découlent, en soulignant le rôle catalyseur joué par la pandémie de Covid-19 dans la prise de conscience accrue du racisme au sein de la population chinoise en France.
Investigation of the effects leisure management of sport manager candidates on achievement goal orientations
Authors: Yılmaz Seyfettin , Kurtipek Serkan , Güngör Nuri Berk
Published: June 2022

The aim of this research is to examine the effect of leisure time management on the success orientations of sports manager candidates. A total of 206 participants studying in the Department of Sports Management from two public universities in the 2021-2022 academic year were included in the study conducted for this purpose. In the study, which was prepared with the relational scanning model, three separate forms were directed to the participants for data collection. These are; Personal Information Form, Leisure Management Scale, and Success Orientation Scale. The data obtained from the scales were tested with T-test, One Way ANOVA, Pearson Product Moments Correlation Coefficient (r), and multiple linear regression tests in the SPSS package program. As a result; While the data obtained from the Leisure Orientation Scale differed depending on the gender, effective use of leisure time, grade point average, and class variables, there was no significant difference between any group from the data obtained from the Achievement Orientation Scale. As a result of the data related to the correlation and regression analysis, it was determined that there was a low and positive relationship between leisure time management and achievement orientation, and 3% of the achievement orientation was explained by leisure management.
​Extended English summary is in the end of Full Text PDF (TURKISH) file.
 
Özet
 
Bu araştırmanın amacı, spor yöneticisi adaylarının boş zaman yönetimlerinin başarı yönelimleri üzerine etkisinin incelenmesidir. Bu amaç doğrultusunda yapılan çalışmaya 2021-2022 eğitim öğretim yılında iki kamu üniversitesinden Spor Yöneticiliği Bölümünde öğrenim görmekte olan toplam 206 katılımcı dâhil olmuştur. İlişkisel tarama modeli ile hazırlanan araştırmada veri toplama amacıyla katılımcılara üç ayrı form yöneltilmiştir. Bunlar; Kişisel Bilgi Formu, Boş Zaman Yönetimi Ölçeği ve Başarı Yönelimleri Ölçeği’dir. Ölçeklerden elde edilen veriler SPSS paket programında T-testi, One Way ANOVA, Pearson Momentler Çarpım Korelasyon Katsayısı (r) ve çoklu doğrusal regresyon testleri ile sınanmıştır. Sonuç olarak; Boş Zaman Yönelimi Ölçeğinden elde edilen veriler cinsiyet, etkili boş zaman kullanımı, not ortalaması ve sınıf değişkenine bağlı olarak farklılık gösterirken Başarı Yönelimi Ölçeğinden elde edilen verilerden hiçbir grup arasında anlamlı farklılık bulunmamıştır. Korelasyon ve regresyon analizlerine ilişkin verilerin sonucunda ise boş zaman yönetimi ile başarı yönelimi arasında düşük düzeyde ve pozitif yönlü bir ilişkinin olduğu ve başarı yönelimi özelliğinin %3’ünün boş zaman yönetimi ile açıklandığı tespit edilmiştir.
Achieving Sustainable Development in Respective County Governments in Kenya Through Market Failures and Sustainable Business Entrepreneurship Initiatives
Authors: ORIBU WILLIAM SAGINI
Published: June 2022

Devolution has been considered as a key pillar of the Constitution of Kenya since the concept seeks to bring governance closer to the people. In line with the Constitution of Kenya 2010 county governments are now at the centre of dispersing political power and economic resources to specific communities. The Principles that underpin devolution in Kenya are that County governments established under the Constitution shall have reliable sources of revenue to enable them govern and deliver services effectively. This study seeks to examine how the principles of entrepreneurship and the issue of market failures can be harnessed by county governments to improve the economic wellbeing in their respective communities. On one hand, environmental economists argue that market failures bring about environmental degradation while on the other hand available literature on entrepreneurship argues that business opportunities arise from market failures. Environmental entrepreneurship details how entrepreneurs seize opportunities that arise from environmentally relevant market failures in order to succeed. Entrepreneurship literature therefore analyses how environmentally relevant market failures may represent opportunities for the achievement of business profitability. This being the case, then businesses can use part of the profits earned for corporate social responsibility in order to reduce environmental degrading economic behaviours. When there are increases in the quality of life and economic growth, there will be substantial negative effects on the natural environment which will diminish the sustainability of most economic systems. This conceptual paper looks at the entrepreneurship as a concept that can be applied in the management of community resources in order to achieve sustainable development and improve the welfare of its citizens. The paper recommends that the administration of county governments in Kenya need to study the environmental failures in their areas of jurisdiction to institute studies on how these failures can be utilised as opportunities for the improvement of the economic wellbeing of the citizens. In order to do these, entrepreneurship concept will become very handy in the said studies.
Analytical performance of eight enzymatic assays for ethanol in serum evaluated by data from the Belgian external quality assessment scheme
Authors: Coucke Wim , Charlier Corinne , Croes Kathleen , Mahieu Boris , Neels Hugo , Stove Christophe , Tytgat Jan , Vanescote André , Verstraete Alain G. , Wille Sarah , Capron Arnaud
Published: June 2022

Objectives

Fast and reliable ethanol assays analysis are used in a clinical context for patients suspected of ethanol intoxication. Mostly, automated systems using an enzymatic reaction based on ethanol dehydrogenase are used. The manuscript focusses on the evaluation of the performance of these assays.

Methods

Data included 30 serum samples used in the Belgian EQA scheme from 2019 to 2021 and concentrations ranged from 0.13 to 3.70 g/L. A regression line between target concentrations and reported values was calculated to evaluate outliers, bias, variability and measurement uncertainty.

Results

A total of 1,611 results were taken into account. Bias was the highest for Alinity c over the whole concentration range and the lowest for Vitros for low concentrations and Cobas 8000 using the c702 module for high concentrations. The Architect and Cobas c501/c502 systems showed the lowest variability over the whole concentration range. Highest variability was observed for Cobas 8000 using the 702 module, Thermo Scientific and Alinity c. Cobas 8000 using the c702 module showed the highest measurement uncertainty for lower concentrations. For higher concentrations, Alinity c, Thermo Scientific and Vitros were the methods with the highest measurement uncertainty.

Conclusions

The bias of the enzymatic techniques is nearly negligible for all methods except Alinity c. Variability differs strongly between measurement procedures. This study shows that the Alinity c has a worse measurement uncertainty than other systems for concentrations above 0.5 g/L. Overall, we found the differences in measurement uncertainty to be mainly influenced by the differences in variability.
Multimodal postpartum imaging of a severe case of Couvelaire uterus
Authors: Jackson Josef , George Verghese , McKinney Jennifer , Fox Karin A.
Published: June 2022

Objectives

Placental abruption occurs when a normally implanted placenta prematurely separates, causing rupture of decidual spiral arteries and retroplacental hemorrhage. Estimates place the incidence of placental abruption somewhere between 0.22% and 1% of all deliveries. Clinical abruption represents a spectrum from mild to the most severe form, in which blood can extravasate into or through the myometrium, the broad ligament, or the peritoneum, causing the uterus and surrounding structures to take on a blue discoloration. This phenomenon is a clinical entity known as Couvelaire uterus, so named because it was first described by French physician Alexandre Couvelaire in the early 20th century as “uteroplacental apoplexy.” Its incidence is difficult to estimate because it has classically been diagnosed only by direct intraoperative visualization. Imaging is not usually indicated in this clinical setting, so radiologic correlation with operative findings has not been previously described.

Case presentation

In this report, we discuss the case of a multipara who presented with abdominal pain and vaginal discharge several days after a classical cesarean delivery. Her prolonged and complex clinical course led to evaluation via several radiologic modalities. At first, a focal placenta accreta or retained products of conception were suspected, however these diagnoses did not correlate with the patient’s reported intraoperative findings of a clean endometrial cavity or with histopathology that was consistent with massive abruption.

Conclusions

The clinical presentation and features identified on multimodal imaging were ultimately most consistent with the patient’s intraoperative diagnosis of Couvelaire uterus.
Entrepreneurial Orientation, Firm Growth and Performance in SMEs: Testing the Scale of EO in SME Context
Authors: Sorama Kirsti , Joensuu-Salo Sanna
Published: June 2022

The aim of this study is to test how different dimensions of entrepreneurial orientation (EO) affect the growth and performance of SMEs in the short term in a rapidly changing business environment. In addition, a scale for measuring EO is tested in the SME context. The data (n = 260) was gathered from Finnish SMEs, and analyzed with structural equation modelling. The results show that EO has two dimensions in SMEs: innovativeness and risk-taking. Proactiveness and innovativeness measure the same phenomenon. Results show that innovativeness has a significant and positive effect on SME performance but not on SME growth. Risk-taking, in turn, has a positive effect on SME growth but not on performance. However, the relationship depends on how growth and performance are defined. Further, the results showed that EO should be seen as multidimensional and be measured by two lower-order dimensions reflecting managerial behaviors and attitudes. This study contributes to theory formation by showing EO as a two-dimensional construct among SMEs and suggests managerial implications by showing the effects of innovativeness and risk-taking on SME growth and SME performance. Further, the results show the importance of EO in the short term, as the current business environment can be described as a time of rapid and unpredictable change, when strategic decision-making requires quick decisions to seize opportunities and counter threats.
On topological indices of zinc-based metal organic frameworks
Authors: Javaid Muhammad , Sattar Aqsa
Published: June 2022

Metal organic frameworks (MOFs) are distinctive porous chemical materials comprised of metal ions and organic ligands to illustrate marvelous chemical stability, high surface area, distinctive morphology, and large pore volume. MOFs have great significance due to their versatile utilizations, such as purification and separation of various gases, environmental hazards, biocompatibility, toxicology, heterogeneous catalyst, and biomedical applications. These structures have attracted global attention of researchers due to their increasing utilizations in many areas of science. Freshly, zinc-based MOFs are becoming popular because of their versatile application in biomedical, i.e., drug delivery, biosensing, and cancer imaging. Topological indices (TIs), the graphs invariants or numerical graph descriptors, are useful in characterizing the topology of molecular structures and helpful in defining the psychochemical properties of these structures. This paper mainly highlights the comparison between two MOFs namely zinc oxide (ZnOx) and zinc silicate (ZnSl) networks via some multiplicative Zagreb connection indices (MZIs), namely modified first MZCI (1st MZCI) modified second MZCI (2nd MZCI), and modified third MZCI (3rd MZCI).
Evaluation of concrete fracture behavior based on digital image correlation
Authors: Gao Ziqi , Lei Dong , He Jintao , Zhu Feipeng , Bai Pengxiang
Published: June 2022

Fracture is the most common damage form of concrete buildings. Due to the opaqueness of concrete, the internal structure can be hardly observed so that it is difficult to predict the occurrence and development of cracks. Therefore, an image-based modeling method using digital image correlation (DIC) is proposed in this work. The realistic distribution of each phase in a concrete structure is captured by a camera, and the corresponding concrete models are then established for further simulation. With the image-based models, a series of three-point and four-point bending experiments are carried out experimentally and numerically, and their fracture processes are compared. It is revealed that the simulation analysis is in good agreement with the experimental result on crack propagation and the trend of strain in three-point bending tests. It should also be remarked that the image-based model needs to be optimized for simulating crack development in four-point bending tests because of the randomness of crack position, although the strain field of simulation is close to one of the experiments.
Strength decay of wire ropes by corrosion and wear at different surface conditions
Authors: Lin Yuan-Ching , Chen Tzung-Ming , Chang Wen-Fung
Published: June 2022

The purpose of this study was to investigate the performance of different lubricated and protective conditions of wire ropes. The failure behaviors of wire ropes under different surface conditions were evaluated by using salt spray, wear, and tensile testing. The four surface conditions of the test wire ropes included naked wire and wires coated with wire rope oil, 85W/140 gear oil, and grease, respectively. The potentiodynamic polarization curves revealed that the naked wire was more easily corroded in 3.5% aqueous NaCl solution than in 5%. The results indicated that only the specimen coated with wire rope oil showed no corrosion in the 5% aqueous solution after nine days of the salt spray, and likewise this specimen was not characterized by long distance scratches in a starvation lubrication condition, causing the wire’s tensile strength underwent almost no degradation. Furthermore, the uncertain performance of grease restricted the applications of wire ropes in corrosive environment.
Der Mensch im Fokus
Authors: Dvorak Julia , Kandler Magnus , Clever Fabian , Mahanty Wolfgang , Beiner Sebastian , Lanza Gisela , Kinkel Steffen
Published: June 2022

Im Zuge der sich verändernden Produktion wird die Frage essentiell, welche Rolle der Mensch in Zukunft einnehmen wird. Technologien, die auf Künstlicher Intelligenz basieren, nehmen Einzug in die Produktion und verändern damit die Arbeit des Menschen. Aufgaben werden komplexer und Assistenzsysteme können einen Beitrag dazu leisten, den Menschen bei seinen täglichen Aufgaben zu unterstützen. Im Rahmen dieses Beitrags wird ein Konzept für die Integration mehrerer KI-basierter Assistenzsysteme entlang einer Montagelinie für Elektromotoren vorgestellt. Anhand dieses Demonstrators sollen die Auswirkungen der Assistenzsysteme auf das sozio-technische Arbeitssystem untersucht werden. Neben der Interaktion von Mensch und KI-System wird zudem die Steuerungsebene betrachtet, um die Messung von prozessseitigen Auswirkungen quantitativ zu bewerten.
Training von Qualitätsmethoden in der virtuellen Welt mittels VR-Brillen
Authors: Karcher Amelie , Prinz Christopher , Arnold Dominik , Kuhlenkötter Bernd
Published: June 2022

Die nachhaltige Vermittlung von Qualitätsmethoden durch Assistenzsysteme, wie z. B. eine Virtual Reality (VR)-Brille, stellt einen neuen und wachsenden Trend von Weiterbildungsangeboten dar. Bereits vorhandene Lehr- und Lernkonzepte können hierfür um virtuelle Lehrinhalte ergänzt werden. Findet diese Ergänzung den Einsatz im Bereich der Weiterbildung, so können Personen hierdurch flexibel betriebliche oder auch familiäre Rahmenbedingungen miteinander kombinieren. Im Vordergrund dieses Beitrags steht die Erläuterung eines entwickelten Anwendungsszenarios anhand der 5S-Methode zu Trainingszwecken von Qualitätsmethoden durch VR-Brillen. Ergänzend hierzu wird ein zusammengefasster Lessons-learned-Austausch zwischen den Teilnehmenden und den Entwicklern vorgestellt.
Creative Thinking Skill in Solving Mathematics Story Questions for Eight Graders
Authors: Agusta Firsty Rizqia , Kartono Kartono , Zulaeha Ida
Published: June 2022

Mathematics creative thinking skills of learners are still low Mathematics learners could not solve mathematics story questions in non-routine manner The success of mathematics learning is based on the capability of learners to remember and apply the given steps, rules, and examples from the teachers These low performances make learners less creative to solve mathematics story questions This research aims to (1) analyze the mathematics creative thinking skill in solving mathematics story questions for learners taught by CPS and learners taught by discovery learning, and (2) describe the mathematics creative thinking skills in solving the questions The researchers used a test to collect the data The results showed that (1) the mathematics creative thinking skills of learners in solving story questions for learners with CPS were better than those taught by discovery learning Secondly, the learners with mathematics creative thinking skills could solve high-level mathematics story questions based on creative thinking indicators and four-stage solution On the other hand, learners with moderate mathematics creative thinking skills could solve questions with an indicator of creative thinking However, they could not solve the questions with four-stage solution Learners with low-level mathematics creative thinking skills could not solve the questions with the indicator of creative thinking skills The research results are useful to enrich knowledge about mathematics creative thinking skill development in solving mathematics story questions with the CPS model.
Validity and Reliability of Chemical Test Instruments for Acid and Base Solutions Oriented Generic Skills Science
Authors: Riza Muhammad , Kartono Kartono , Susilaningsih Endang
Published: June 2022

The 2013 curriculum prioritizes the generic skills needed in science learning. Generic science skills require valid and reliable measuring tools. The purpose of this research is to reveal validity and reliability Chemical test instruments oriented to generic science skills on acid and base solutions. The subjects used were 35 students for the small class test and 125 students for the large class test. The method used is the quantitative method in the form of questionnaire sheets and KGS-oriented acid-base chemistry questions. Construct validity using confirmatory first order analysis. Interterrater reliability using 3 raters and tested using two-way annova with Ebel formula. The reliability of the large class test used the cronbach alpha formula. content validity of each item in each 81.25% eligible category. Construct validity seen from the item polarity of the items has a positive Point Measure Correlation (Pt. Mea-Corr). A total of 32 items have a strong or high correlation number. Three questions, namely item number 23 (0.57), 27 (0.49), and 33 (0.67) have a moderate correlation. Reliability between expert raters was analyzed using the Ebel formula resulting in 0.79 which was in the currently category. Small class test reliability 0.97 high category. The reliability of the large class test item reliability is 0.90, personal reliability is 0.94, and the KR-20 is 0.99 which is classified as high. Thus, the level of generic science ability that has been tested for validity and Reliability can be used by educators to determine the level of students' generic science abilities.
A Literature Synthesis and Evaluation of Experimental Studies in Agricultural Education Researches Within Period 2011-2021
Authors: Oba Abdulkadir Ibrahim , Ahmed Abdullahi Hussein
Published: June 2022

The purpose of this study is to find and synthesize existing Agricultural Education (AE) researches of Nigeria authors extraction that used experimental or quasi experimental designed and were published within period 2011-2021. A mixed approach research synthesis design was adopted. Five research questions were raised and answered. Thirty AE research articles met the selection criteria. The selected studies were synthesized based on research focus, recommendation, result, sample size and duration of treatment. Thirteen of the selected studies experimented on academic performance of students, out of which five shared themes with either of, method of active learning or technology. Five common themes in research recommendations were discovered by coding the recommendations of each publication, four of the selected studies recommend that government and school administrators should ensure adequate provision of technological devices in schools to make the use of technology effective in teaching. It was concluded that majority of the studies examined used a shorter treatment duration and that AE researches of Nigerian extraction were low. The impact of technology, academic achievement, and active learning approaches were trends in the synthesized studies. Professionals should be recruited and retrained to keep up with agricultural developmental trends, teachers should use video technology to enhance teaching and learning, and curriculum should be adjusted to include new innovative technique were among recommendations made.
MORPHOFUNCTIONAL CHARACTERISTICS OF HEMATOPOIETIC BONE MARROW PROGENITOR CELLS IN A HUMANIZED CELL CULTURE SYSTEM IN VIVO
Authors:   National University of Kyiv-Mohyla Academy, Ukraine, Bilko D.I. , Tchaikovsky Y.B. ,   National Medical University named O.O. Bogomolets, Kyiv, Ukraine, Russu I.Z. ,   National University of Kyiv-Mohyla Academy, Ukraine, Pakharenko M.V. ,   National University of Kyiv-Mohyla Academy, Ukraine, Lahodniuk I.Yu. ,   National University of Kyiv-Mohyla Academy, Ukraine, Bilko N.M. ,   National University of Kyiv-Mohyla Academy, Ukraine
Published: June 2022

Diffusion capsules implanted in the abdominal cavity of the mouse recipient are one of the variants of the humanized model of "human-animal" systems. The aim of our study was to determine the optimal parameters for the cultivation of hematopoietic progenitor cells in gel diffusion chambers and their functional activity of bone marrow cells from different locations. To achieve this goal, the method of cultivation in gel diffusion chambers in vivo combined with the method of colony formation in semi-liquid agar, cytological research methods and light microscopy were used. The optimal conditions of cultivation and kinetic indicators of cell aggregate formation by bone marrow precursors of patients without hematological pathology in semi-liquid medium were established in vivo in 16 days of cultivation. We determined that the most suitable term for taking the results of experiments is at 12th day of cultivation. The number of cells that was determined to be optimal for further studies was 5x10(5) cells in 1 ml, or 1x10(5) cells per chamber. Our results suggest that regardless of the place of collection of biological material in humans, the formation of colony in the culture of diffusion chambers is maintained at nearly the same level. The CFU activity for the sternal puncture was 36.5 ± 2.3, the CFU activity for bone marrow from the rib fragment was 38.5 ± 4.8, the CFU activity for trepan biopsy from the anterior upper part of the iliac crest was 35.5 ± 6.8 and the CFU activity from the posterior upper part of the iliac crest was 37.3 ± 5.5. These observations are important for evaluation of functional activity and further use of stem cells from different parts of bone tissue in the case of transplantation. This is further supported by the proliferative potential of colony formation and the index of cell maturation in clones. The obtained data deepen our understanding of the functioning of the hematopoietic stem cells in the human body under normal conditions.