bluuebunny/crossref_metadata_2025 huggingface dataset:
A usable concept for the indentation of thin porous films
Authors: Puschmann René , Schwarzer Norbert , Richter Frank , Frühauf Swantje , Schulz Stefan E.
Published: February 2022

The paper deals with the application of Pharr’s concept of the effectively shaped indenter as well as an extension of that concept – referred to as extrapolation method – on the determination of the yield strength of porous thin films. As an example, a 1066 nm thick porous SiO2 xerogel film having a porosity of about 50% and an average pore size in the range 3 – 4 nm was investigated. Three different spherical indenters with radii of 1.4, 3.11 and 110 lm were used in this investigation. Depending on the indenter radius and the applied load the physical nature of the sample deformation was different making the one or the other of the two methods more suitable for analysis. We found that the data received with the large indenter could be well analysed using Pharr’s concept, while for the two smaller indenters the extrapolation method had to be used. The yield strength values obtained with the two methods were in remarkable agreement (109 vs. 99 MPa).
Analysis of the ductile/brittle transition during a scratch test performed into polymeric film deposited on a PMMA substrate
Authors: Heck G. , Riche A. , Bardon J. , Pelletier H.
Published: February 2022

Indentations and scratch tests using a Nano Indenter ®XP have been carried out to characterize the mar and wear resistance properties of polymeric bilayer systems. These systems were composed of a transparent coating on a thermoplastic polymer (PMMA) substrate. The different thin films were deposited using several coating technologies. Nanoindentation tests with a Berkovich indenter were performed at different peak loads from 0.625 to 10 mN, to determine the mechanical properties both of thin films and of the PMMA substrate, such as the elastic modulus and the hardness. A new analysis of the loading curve was applied to extract the viscoplasticity index. Then, scratch tests using a conical indenter truncated with a spherical tip (radius R = 5 μm) were realized with increasing progressively applied load (from 0 to 40 mN) to create irreversible damages (crack or delamination). The distinction between ductile and brittle behaviour in a scratch process leads to the definition of some specific parameters. For all tested specimens, we estimated the average contact pressure, the strain rate and the average strain beneath the indenter at which the fracture occurs. We propose a complete method to estimate with accuracy these differents parameters, from data supplied experimentally by the depth sensing instrument. This method takes into account the piling-up phenomenon and the viscoelastic recovery of the polymeric surface at the rear of the contact. No direct relationship was found between the viscoplasticity index and the ductile/brittle transition determined by the scratch test. Different criterions related to mar and scratch resistance were tested and compared to results obtained with macroscopic tests.
Nanomechanical and nanotribological properties of polymeric ultrathin films for nanoimprint lithography
Authors: Ekwińska M. , Landis S. , Ekwiński G. , Nowek A. , Chaix N. , Rymuza Z.
Published: February 2022

Ultrathin polymeric films devoted for nanoimprint lithography were tested. Atomic force microscopy was used to study the surface topography, and the adhesive and nanomechanical/tribological behaviour. The wetting properties of the films were also evaluated, using a special test rig for the contact angle measurements.
Influence of Ce, K, and Na on spheroidization of eutectic carbides in low-tungsten white cast iron
Authors: Zou De-Ning , Fu Han-Guang
Published: February 2022

Tungsten alloy white cast iron (TAWCI) exhibits strong brittleness and a narrow application scope. The influences of Ce, K and Na on the microstructure and performance of TAWCI have been studied, and the idea to estimate the spheroidization effect of carbides using circular degree (C.D.) is put forward. The results show that eutectic carbides turn from network into sphericity after the modification. Carbide is refined and uniformly distributed and theC.D. of eutectic carbides increases. The mechanism of carbide spheroidization has been analyzed. The impact toughness and wear resistance of TAWCI obviously improves with the rise ofC.D. of carbides. The service life of a modified TAWCI roll is 35 % higher than that of high-chromium cast-iron roll, its production cost is reduced by 25 %.
Dynamic propagation behaviors of pure mode I crack under stress wave loading by caustics
Authors: Liu Huizhen , Yang Liyun , Yang Enguang , Yang Renshu
Published: February 2022

It is always a difficult task to study the dynamic fracture of prefabricated cracks under stress wave loading. To investigate loadings of stress waves on dynamic cracks, a crack propagation testing configuration consisting of a one-point bend specimen loaded in split Hopkinson pressure bar (SHPB) was used, which loaded an unconstrained polymethyl methacrylate (PMMA) plate (120 mm × 60 mm × 5 mm) on the edge opposite to the cracked edge. A modified simple pre-cracked specimen geometry under impact stress wave loading to generate pure mode I crack at crack initiation was demonstrated, which can avoid the superposition and interference of various waves to facilitate the research. The numerical simulation was performed firstly by ABAQUS to prove the existence of the mode I field at the crack tip leading to crack propagation and indicate the stress distribution and evolution in the specimen caused by the propagation of the impact stress wave, analyze the propagation characteristics of the wave. Then dynamic caustics method in conjunction with high-speed photography was utilized in SHPB impact experiment. The propagation of shock stress wave in the specimen and its interaction with the prefabricated crack and the stress concentration at the tip of the prefabricated crack were analyzed. The corresponding stress intensity factor history is precisely determined. Finally, it is concluded that the observed distortion phenomenon at the impact point belongs to a caustic behavior under compression load, which reflects the stress concentration at the impact point. And the mode I failure occurs along the pre-crack direction. Specifically, the pre-crack shows obvious pure mode I crack propagation characteristics under symmetrical reflected tensile wave, the stress at the crack tip changes from compressive stress to tensile stress. And crack propagates under tensile stress wave reflected from its two free boundaries without crack, while the compressive stress wave can not make crack initiate and has little influence on crack propagation. Which agree with the numerical prediction.
On the consideration of combined measurement uncertainties in relation to GUM concepts in adjustment computations
Authors: Neitzel Frank , Lösler Michael , Lehmann Rüdiger
Published: February 2022

In this contribution it is shown how an extended uncertainty budget of the observations according to the Guide to the Expression of Uncertainty in Measurement (GUM) can be considered in adjustment computations. The extended uncertainty budget results from the combination of Type A standard uncertainties determined with statistical methods and Type B standard uncertainties derived with nonstatistical methods. Two solutions are investigated, namely the adjustment in the classical Gauss-Markov model and the adjustment in the Gauss-Markov model using Monte Carlo simulations for the consideration of the uncertainties of the observations. Numerical examples are given to show that an appropriate interpretation of the dispersion measures for the unknowns is particularly important in order to avoid misinterpretation of the results. Furthermore, the effects of changing the weights of the observations on the adjustment results are shown. Finally, practical advice for the consideration of an extended uncertainty budget of the observations in adjustment computations is given.
Clinical evaluation and management of calcific tendinopathy: an evidence-based review
Authors: Catapano Michael , Robinson David M. , Schowalter Sean , McInnis Kelly C.
Published: February 2022

Calcific tendinopathy (CT) is an important musculoskeletal condition most commonly seen in the shoulder girdle, accounting for 10–42% of all shoulder pain. Despite the high prevalence within the shoulder region, CT has been demonstrated in many tendons throughout the axial and appendicular skeleton. Unlike degenerative tendinopathies, CT appears to be a self-limiting condition that affects otherwise-healthy tendon with deposition of calcium hydroxyapatite crystals between healthy tenocytes. In patients with functionally limiting symptoms or pain, the clinical course may be accelerated through a multitude of treatments including physical therapy and pain management, extracorporeal shock wave therapy, ultrasound-guided percutaneous lavage (UGPL), and operative debridement. Currently, the most efficacious and frequently utilized treatment for shoulder CT is UGPL due to its ability to effectively reduce calcium burden and pain while limiting soft-tissue damage. However, more evidence regarding the treatment and course of CT is needed before determining the most appropriate treatment at all potential sites of CT.
Homozygous missense variant of PTH (c.166C>T, p.(Arg56Cys)) as the cause of familial isolated hypoparathyroidism in a three-year-old child
Authors: Andersen Stine Linding , Frederiksen Anja Lisbeth , Rasmussen Astrid Bruun , Madsen Mette , Christensen Ann-Margrethe Rønholt
Published: February 2022

Objectives

Hypoparathyroidism is a rare disorder which is predominantly of idiopathic or genetic origin in children. The diagnosis is made from the biochemical measurement of parathyroid hormone (PTH), and the key findings include a low PTH in combination with hypocalcemia and hyperphosphatemia. However, the level of PTH encountered in patients with hypoparathyroidism may be dependent on the underlying genetic cause of the disorder as well as the biochemical assay used for assessment of PTH.

Case presentation

A three-year-old child with asymptomatic primary hypoparathyroidism was identified with a homozygous missense variant of PTH. A sudden unexpected high PTH result after a shift from 2nd to 3rd generation PTH assay in the routine laboratory provided a clue on the underlying genetic etiology.

Conclusions

Pathogenic variants of PTH as a cause of hypoparathyroidism are rarely described. In this case, the child was asymptomatic, and discordant PTH results were seen with different assays.
Photonic topological Lifshitz interfaces
Authors: Piao Xianji , Shin Jonghwa , Park Namkyoo
Published: February 2022

The intrinsic geometry of wavevector diagrams describes electronic or photonic transport at a given energy level. Lifshitz transition is an intriguing example of the topological transition in wavevector diagrams, which plays a critical role in abnormal transport with enhanced magnetoresistance or superconductivity. Here, we develop the spatial analogy of the Lifshitz transition, which provides a comprehensive topological perspective on transverse-spin interface states. We establish the excitation conditions of transverse-spin interface states, which require the “Lifshitz interface” – the interface between different topologies of wavevector diagrams – along with the gap in wavevector diagrams. Based on the detailed analysis of this topological phenomenon with respect to the dimensionality and gaps of wavevector diagrams across the Lifshitz interface, we show distinct parity of transverse spins and power flows in transverse-spin modes. The unique symmetry of interface states realizing Abraham-spin-momentum locking represents the gauge induced by the Lifshitz interface, which provides a novel insight into the Abraham–Minkowski controversy.
The twinned crystal structure of [4,4′-bipyridine]-1,1′-diium hexachloridostannate(IV), C10H10N2SnCl6
Authors: Reiss Guido J. , van Megen Martin
Published: February 2022

C10H10N2SnCl6, monoclinic, I2/a (no. 15), a = 7.4941(3) Å, b = 12.8731(4) Å, c = 15.8688(5) Å, β = 93.042(3)°, Z = 4, V = 1528.73(9) Å3, R

gt
(F) = 0.0264, wR
ref = 0.0485, T = 100 K.
On the Emerging Supremacy of Structured Digital Data in Archaeology: A Preliminary Assessment of Information, Knowledge and Wisdom Left Behind
Authors: Hacıgüzeller Piraye , Taylor James Stuart , Perry Sara
Published: February 2022

While the epistemological affordances and varied impacts of different media on archaeological knowledge production have been scrutinized by many practitioners in recent decades, sources of digital structured data (e.g., spreadsheets, traditional relational databases, content management systems) have seen far less critical enquiry. Structured digital data are often venerated for their capacities to facilitate interoperability, equitable data exchange, democratic forms of engagement with, and widespread reuse of archaeological records, yet their constraints on our knowledge formation processes are arguably profound and deserving of detailed interrogation. In this article, we discuss what we call the emerging supremacy of structured digital data in archaeology and seek to question the consequences of their ubiquity. We ground our argument in a case study of a range of texts produced by practitioners working on the Çatalhöyük Research Project. We attempt to map short excerpts from these texts to structured data via the CIDOC Conceptual Reference Model. This exercise allows making preliminary observations about the representational affordances and resistances of texts (which can be considered as a type of semi- or unstructured data) and structured data. Ultimately, we argue that the push to create more and more structured and structurable data needs to be tempered by a more inclusive digital practice in archaeology that protects difference, incommensurability, and interpretative nuance.
A Lotmanian semiotic interpretation of cultural memory in ritual
Authors: Kang Cheng , Yu Hongbing
Published: February 2022

This paper affords a Lotmanian cultural semiotic analysis of the inner workings of ritual embodying the mechanism of cultural memory. In this intersectional study, we propose treating ritual as anintegralsemiotic system in which the community follows a prescribed collective process to create religious or social meanings and to regulate the mechanism of cultural memory throughconcretesymbols in the forms of behavior, speech, gestures, objects, spatial structures, and so on. Three semiotic properties of ritual in relation to cultural memory are identified, namely, continuity, concreteness, and integrity, which are jointly responsible for the efficacy of ritual in cultural memory making, or to be specific, in the preservation, retrieval, and even reproduction of cultural memory. With these properties, ritual helps construct and maintain socio-cultural order and group identity in the community, by repeating itself and thus creating a sense of continuity through the preservation and retrieval of cultural memory. The key components in ritual are its diverse and polysemous symbols, which are seldom confined to a specific context, although they are indeed subject to the dominant symbol and the dominant meaning in a ritual when necessary. With an extraordinary degree of autonomy and not bound to any fixed context, ritual symbols can enter a ritual situation as its components but retain the freedom of leaving the ritual context at any time, like an unchained “spectator,” and permeating multiple contexts as self-contained units. It is precisely through these transferrable ritual symbols that the fragments of cultural memory are randomly dispersed in the semiosphere and carried to unexpected socio-cultural contexts, bridging the past, the present, and the future and creating new cultural memory.
A new approach to increasing the sensitivity of a gas sensor based on nanocrystalline silicon carbide films
Authors: Semenov A. , Lubov D.
Published: February 2022

It was shown the possibility of increasing the sensitivity of a gas sensor based on nanocrystalline SiC films by using a scheme of a two-component sensing element, one of which is an n-nc-SiC film with electronic conductivity, and the second is an p-nc-SiC film with hole conductivity. It is shown that due to the opposite polarity of changes in resistance in the films under the simultaneous action of gases, the difference in relative resistance changes ∆ in the n-nc-SiC and p-nc-SiC films will always be greater than in each film separately. The expediency of using a two-component sensing element of a gas sensor based on nc-SiC films with electron and hole conduction is shown.
Educational technology for promoting parental self-efficacy in controlling childhood asthma
Authors: Lima Kamila Ferreira , Dias Ana J´éssica Lopes , Alves Ana Karen de Sousa , Furtuoso Francisco Mateus Rodrigues , Serra Thais de Queiroz , Abreu Victórya Suéllen Maciel , Barbosa Lorena Pinheiro
Published: February 2022

Objective: to verify the self-efficacy of parents and caregivers in controlling childhood asthma before and after an educational intervention and to associate the scores with sociodemographic factors. Methods: quasi-experimental study, with 65 parents and caregivers of children with asthma. The Self-Efficacy and Their Child’s Level of Asthma Control scale – Brazilian version – was used before and 30 days after the intervention with the reading of the booklet “Are you able to control your child’s asthma – let’s learn together?” For the analysis, McNemar’s Chi-square and Wilcoxon statistical tests were used. Results: after 30 days,the effect of the intervention demonstrated statistical significance between high self-efficacy scores and the following variables: marital status (Odds Ratio:2.6;p≤0.001), family income (Odds Ratio:3.4;p≤0.001) and Bolsa Família Program benefit (Odds Ratio:2.9;p≤0.001). Conclusion: the educational booklet was shown to be effective in increasing the self-efficacy of parents and caregivers in the control and management of childhood asthma.
Psychosocial Care Center: daily work and articulation with the network in the pandemic
Authors: Silvano Aline Delmondes , Rezio Larissa de Almeida , Martins Felipe Aureliano , Bittencourt Marina Nolli , Cebalho Mirelly Thaina de Oliveira , Silva Ana Karolina Lobo da , Borges Flavio Adriano
Published: February 2022

Objective: to analyze the daily work of a Psychosocial Care Center and its articulation with the Psychosocial Care Network in the context of the COVID-19 pandemic. Methods: this is a qualitative study, produced by means of the researcher’s diary and semi-structured interviews with nine health professionals, submitted to thematic-categorical content analysis. Results: the pandemic revealed failures in the management of services, lack of public investment, and the unpreparedness of professionals, intensifying work fragmentation, network disarticulation, non-assistance, and pre-existing asylum practices. Conclusion: the reality of the daily work of psychosocial care services shows that multifaceted actions that consider the complex social process of the psychiatric reform are necessary, especially in the pandemic, seeking the effective institutionalization of the psychosocial care model and the formation of centers of resistance to the established asylum model.
Minors using Ritalin: obstacles in Primary Health Care surveillance
Authors: Cheffer Maycon Hoffmann , Shibukawa Bianca Machado Cruz , Borges Gabriele da Silva , Dietrichkeit Elisete Teleginski , Campos Terezinha Aparecida , Salci Maria Aparecida , Higarashi Ieda Harumi
Published: February 2022

Objective: to understand how nursing workers from Family Health Strategy teams track children and adolescents using Ritalin. Methods: qualitative study, based on the theoretical references of the essential primary health care attributes. The participants were 27 nurses from the Family Health Strategy. Data collection took place through interviews later submitted to content analysis in the NVivo software. Results: three categories emerged: (Lack of) knowledge about the population who uses Ritalin: co-responsibilities in the process of assistance and difficulties to follow up on the use of Ritalin; Primary care knowledge and know-how in the setting of Ritalin use; The prescription of Ritalin as a demand from schools. Conclusion: the monitoring of children and adolescents who use Ritalin has shortcomings, and primary health care must organize itself to increase and strengthen the care to this population.
Virtual education programming for patients with acromegaly: a pilot study
Authors: Geer Eliza B , Kilgallon John L , Liebert Karen J P , Kimball Allison , Nachtigall Lisa B
Published: February 2022

Objectives

To assess the impact of virtual education programming for patients with acromegaly.

Design

We conducted a mixed methods study to evaluate patient attitudes, examine if patient-centered educational forums change these attitudes, and determine the role of virtual education as a means to learn about patients’ unmet needs, self-reported outcomes, and educational priorities.

Methods

The study included 653 total virtual program registrants. Of these, 78 patients with acromegaly were included in the analysis. The programs consisted of patient-centered livestream education by a multidisciplinary team of pituitary experts and patient presenters. Multiple-choice questions were used to assess attitudes before and after the event, and short answer surveys were used to collect care goals and unmet needs related to treatment.

Results

Attendance included participants from 37 countries. The number of patients who responded that they had no hope for improvement, had no choice in their treatment, and felt alone living with acromegaly each decreased significantly pre- to post-event (P  < 0.05). The number of patients who felt anxious about their acromegaly diagnosis remained unchanged. ‘Quality of life/mental health’ was the most common personal care goals concern followed by ‘medical therapies/tumor control.’ Perceived acromegaly unmet needs were evenly distributed, with five of six categories reported by over 20% of patients.

Conclusion

Our findings indicate that virtual education may have a significant positive effect on acromegaly patients’ perceptions of their disease. The lessons learned from these virtual programs may be used to inform future virtual education programming for acromegaly and other rare diseases.
КРАЙОВИЙ ЕФЕКТ У ШАРУВАТОМУ КОМПОЗИТНОМУ МАТЕРІАЛІ ПРИ НЕДОСКОНАЛОМУ КОНТАКТІ МІЖ ШАРАМИ
Authors: Бистров В. М. , Декрет В.А. , Зеленський В. С.
Published: February 2022

Із застосуванням рівнянь теорії пружності кусково-однорідних тіл та кількісного критерію згасання крайового ефекту досліджено крайовий ефект у околі поверхневого навантаження шаруватого композитного матеріалу. Розглянуто випадок недосконалого контакту між шарами, який моделюється періодичною системою міжшарових тріщин у вигляді математичного розрізу. Використана розрахункова модель для граничних умов на бічних сторонах багатошарового зразка з композитного матеріалу, які відповідають умовам симетрії. Досліджено вплив розміру тріщин на довжину згасання крайового ефекту. Для числового розв’язування задачі використано метод сіток на основі модифікованого варіаційно-різницевого підходу. В рамках обчислювального експерименту застосовані послідовний і паралельний алгоритм методу Холецького для розв’язання системи лінійних алгебраїчних рівнянь.
СТАТИЧЕСКИЙ РАСЧЕТ ШАРНИРНО-СОЕДИНЕННЫХ БАЛОК НА УПРУГОМ СЛОЕ
Authors: Козунова О. В. , Босаков С. В.
Published: February 2022

Статический расчет шарнирно-соединенных балок на упругом однородном изотропном слое, как и на других моделях упругого основания, выполнен смешанным методом строительной механики и способом Жемочкина в случаях  сосредоточенной и равномерно-распределенной нагрузок, действующих на балку с учетом ее собственного веса. Предложен универсальный подход для расчета шарнирно-соединенных балок на упругом слое, шарнирно соединенном с недеформируемым основанием, который позволяет с единых позиций рассчитывать шарнирно-соединенные балки любой жесткости при произвольной вертикальной нагрузке. Численная реализация предлагаемого подхода выполнена при помощи компьютерной программы в пакете Mathematica.
АНАЛІТИЧНІ РОЗВ’ЯЗКИ ДЕЯКИХ МОДЕЛЬНИХ ЗАДАЧ ЕЛЕКТРОПРУЖНОСТІ
Authors: Шпорта А. Г. , Кагадій Т. С. , Онопрієнко О. Д.
Published: February 2022

Узагальнення методу малого параметру поширено на двовимірні задачі електропружності. Наведено розв’язання деяких прикладів таких задач, яки можна розглядати у якості модельних. Крайові задачі теорії електропружності для плоских ортотропних тіл зводяться до послідовного розгляду задач теорії потенціалу. Показано, що при розв’язанні крайової задачі електропружності з відповідними крайовими умовами методом збурень механічні та електричні складові можуть бути відокремлені, але мають взаємний вплив через крайові умови.
Truques de Linguagem
Authors: Efken Karl Heinz , Barreto Fanuel Melo Paes
Published: February 2022

A teoria da implicatura constitui o principal legado de Paul Grice aos modernos estudos da pragmática linguística. Embora associado à filosofia da linguagem ordinária, seu pensamento não se apresenta marcado pela aversão à sistematização teórica que, segundo se diz, caracterizou essa corrente filosófica. Pelo contrário, a obra do filósofo inglês, apesar de dispersa em artigos só postumamente reunidos em livro, constitui um esforço coerente e rigoroso de analisar os princípios que explicam o comportamento racional do homem. Este ensaio oferece uma tentativa de interpretação da análise que ele propôs para o fenômeno da implicatura, buscando integrar tal análise, progressivamente, ao quadro mais geral de sua filosofia da linguagem e de sua psicologia filosófica. De passagem, é sugerida uma aproximação, quanto aos propósitos, entre o programa filosófico de Grice e certa ensaística crítica do poeta argentino Jorge Luis Borges, sugestão talvez surpreendente, mas que pode se mostrar instrutiva.
Patient Satisfaction Regarding Biosecurity Protocols in the Face of COVID-19, Faculty of Dentistry, University of Costa Rica
Authors: Gutiérrez-Marín Natalia
Published: February 2022

Biosecurity protocols are particularly important in dental practice. The aim of this research was to determine the level of patient satisfaction regarding biosecurity protocols used in the School of Dentistry of the University of Costa Rica, to avoid COVID-19 infections during dental care. A survey was sent by email to all patients who received dental consultations at the School of Dentistry between April and September 2021. They were asked about sociodemographic variables (sex, age range, approved educational level, and place of origin), as well as whether they considered safe the protocols used during the dental consultation to avoid COVID-19 infections. Descriptive statistics were performed proving the absolute and relative frequency of the socio-demographic variables and the satisfaction of patients with the protocols used. A Chi-square test was used to determine if there was a difference in patient satisfaction with biosecurity protocols to avoid COVID-19 infections during dental care and sociodemographic variables. 95.9% of the respondents considered the biosafety protocols used to be safe and there was no statistically significant difference between patient satisfaction with the protocols and sociodemographic variables. A large majority of patients who come to the UCR School of Dentistry are satisfied with the biosecurity protocols used to avoid COVID-19 infections during dental care.
Marketing Strategy for Local Superior Commodities and Regional Economic Contributions, Indonesia
Authors: Warlina Lia , Luckyardi Senny , Soegoto Eddy Soeryanto , Supatmi Sri , Hassan Faridah Hj
Published: February 2022

In the agricultural sector of a region, only the best commodities can be favored to boost national economic sustainability. Therefore, the stakeholders need to formulate an effective marketing strategy to improve farmers’ welfare. Marketing strategies were differently influenced by several factors ranging from geography, politics, and people’s consumption patterns. This study compares the marketing strategies for leading agricultural commodities in Indonesia and Uzbekistan to obtain a new formula for marketing agricultural products. Uzbekistan is considered one of the countries in Central Asia that has a lot in common with Indonesia, especially in the agricultural sector, and vice versa. This study aims to develop a marketing strategy for superior regional commodities and see how significant the economic contribution of the Garut region is on a national scale. The method used Literature review. We also conducted a case study and field survey in the Garut region, one of the agriculture centers in Indonesia. The results also indicate that a marketing strategy can boost the economy of a certain area or up to a broad scope. It can be helpful for local governments and business entities to develop effective strategies to deal with the national economy and constant monitoring of farmer effectiveness.
Understanding Centrality Theories •
Authors: Losonczy Anna Kornélia , Orbán Annamária
Published: February 2022

The study is based on the re-combination or synthesis of international scientific literature, and the definition of the notions center, and sub-center. A conceptual-structural framework of socio-spatial characteristics of centers (and sub-centers) is set up, these factors are essential elements of making, maintaining, and rehabilitating a city: Market and Competition; Node and Pole; Faith; Power; Security; Mixture; and Identity. In an evaluation matrix, the meta-physical characteristics (that are the determining factors of the physical attributes) of these archetypes are drawn. Based on famous theorists, three types of city forms are distinguished: the “traditional / organic”, the “modern / planned”, and the “contemporary / disjointed” ones. We argue that the historical, theoretical-conceptual background of the triple division is comprehensible. However, this trichotomy lacks some essential elements, “measurable” aspects of city centers – outlined in our study –, which are important in contemporary urban processes and support more realistic urban planning.

Tanulmányunkban – nemzetközi szakirodalmi kutatás alapján – definiáljuk a központ és az alközpont fogalmakat. Meghatározzuk a központok (és az alközpontok) téri-társadalmi jellemzőinek konceptuális és strukturális keretrendszerét. Ezek az alkotóelemek – Piac és Verseny; Csomópont és Pólus; Hit; Hatalom; Biztonság; Vegyesség; Identitás – a város alapításának, fenntartásának és megújításának feltételei. Egy értékelő mátrix segítségével összegezzük ezen archetípusok metafizikai jellemzőit, és amellett érvelünk, hogy ezek determinálják a központok fizikai tulajdonságait. Elismert szerzőkre hivatkozva ismertetjük a legelfogadottabb városmodellek hármas felosztását: a hagyományos / organikus, a modern / tervezett és a kortárs / széttagolt tipológiát. Azt állítjuk, hogy a hármas felosztás történelmi, elméleti-konceptuális háttere megalapozott. Ugyanakkor ez a hármasság nem foglalja magában azokat a „mérhető” – a tanulmányban felvázolt – szempontokat, amelyek segítségével a valósághoz jobban közelítő, a tervezési gyakorlatban könnyebben alkalmazható központmodellek vázolhatók fel.
Modelling the contribution of metacognitions and expectancies to problematic smartphone use
Authors: Casale Silvia , Fioravanti Giulia , Spada Marcantonio M.
Published: February 2022

Background and aims

In the current study we have sought to clarify the contribution of metacognitions concerning smartphone use relative to smartphone use expectancies in the relationship between well-established predisposing psychological factors and problematic smartphone use (PSU). We tested a model where psychological distress, impulsivity, and proneness to boredom predict metacognitions about smartphone use and smartphone use expectancies, which in turn predict PSU.

Methods

A sample of 535 participants (F = 71.2%; mean age = 27.38 ± 9.05 years) was recruited.

Results

The model accounted for 64% of the PSU variance and showed good fit indices (χ

2
= 16.01, df = 13, P = 0.24; RMSEA [90%CI] = 0.02 [0–0.05], CFI = 0.99; SRMR = 0.03). We found that: (i) when it comes to psychological distress and boredom proneness, negative metacognitions, and both positive and negative expectancies play a mediating role in the association with PSU, with negative metacognitions showing a dominant role; (ii) there is no overlap between positive expectancies and positive metacognitions, especially when it comes to smartphone use as a means for socializing; (iii) impulsivity did not show a significant effect on PSU Direct effects of the predictors on PSU were not found.

Discussion and conclusions

The current study found additional support for applying metacognitive theory to the understanding of PSU and highlight the dominant role of negative metacognitions about smartphone in predicting PSU.
Expansion of the geographic distribution of a Brazilian endemic, Encyclia gonzalezii L.C. Menezes (Orchidaceae, Epidendroideae), to the Cerrado of Maranhão and the Northeast Region of Brazil
Authors: Ferreira Alessandro Wagner Coelho , Zanandrea Ilisandra , dos Santos Juliano , Pereira Weslley Alexandre de Jesus , de Oliveira Miguel Sena
Published: February 2022

We report the first occurrence of Encyclia gonzalezii L.C. Menezes (Orchidaceae) from the state of Maranhão and the Northeast Region of Brazil. The species was collected in the Cerrado domain in Estreito, Maranhão. We present a map of the collection site, a morphological description, photographs, ecological comments, a provisional conservation assessment, and an identification key for the species of Encyclia from Maranhão.
Operasional Pembiayaan Usaha Syariah di PT. BPRS Kota Mojokerto sebagai Upaya Mempertahankan Non Performing Financing (NPF) 0%
Authors: Anwar Sanusi
Published: February 2022

This study seeks to analyze Sharia Business Financing Operations (PUSYAR) as an effort to maintain 0% Non-Performing Financing (NPF) at PT. BPRS Mojokerto by taking a case study of the synergy of PT. BPRS Mojokerto, Baznas, Diskoperindag and Sharia Economic Community of Mojokerto, in the period 2012 to 2016. The research methodology used is a qualitative approach using qualitative descriptive analysis techniques. Data collection was carried out by means of field observations, interviews and documentation. Sharia Business Financing Program (PUSYAR) at PT. BPRS Mojokerto has succeeded in channeling financing to UKM and IKM in Mojokerto City from 2012 to 2016, and has succeeded in carrying out its function of channeling financing very well so that there has been no problem financing, and can maintain non-performing financing at zero percent (0%). The role of the parties involved greatly influences the success of the program. The findings of this study indicate that financing monitoring contributes to the performance of UMKM, so that awareness arises from UKM to pay installments on time. Financing monitoring carried out by the Bank will contribute to the performance of the UKM business.
Potensi dan Peran Pesantren dalam Mengembangkan Ekonomi Masyarakat
Authors: Wadi Moh.
Published: February 2022

Islamic boarding schools have an important role for the independence of Indonesia and also play a role in developing the community's economy in order to assist the government in efforts to reduce poverty and unemployment. Tne example is the economic activity carried out by the Miftahul Ulum Islamic Boarding School in Panyeppen Palengaan Pamekasan. The results of the study indicate that the potential of pesantren in developing the community's economy are formal education, students, alumni, sympathizers, community and branch/affiliated madrasas. The roles and activities of Islamic boarding schools in developing the community's economy are first, by providing business capital through qarḍ al-hasan and business capital lending for people who lack and need business capital accompanied by intensive and periodic entrepreneurship training. Second, by providing job opportunities by becoming employees at economic institutions and educational institutions managed by the Al-Miftah foundation such as employees of BMT, KOIM Swalayan. Third, by providing kios for the public to be able to trade. Fourth, the provision of scholarships to outstanding students is to develop children's education. Supporting factors, namely the ideals of caregivers, empowering human resources, cooperation with other institutions and consumers are permanent and clear, while the inhibiting factors are increasingly fierce and competitive competition, limited employee knowledge, time-consuming efforts and the sudden arrival of natural risks.
Digital Currency under the Perspective of Islamic Law
Authors: Fageh Achmad
Published: February 2022

Fatwa Number: 28/DSn-MUI/III/2002 regulates the sale and purchase of money in the fatwa which reads: Currency buying and selling transactions are basically allowed, provided that: Not for chancy (speculation), just in case (savings), the transaction needs if the currency transactions are of the same type, they must be of the same value and cash. If different types, it must be based on the exchange rate at the time of transaction and cash delivery. The concept of digital currency for buying and selling transactions has met the requirements and pillars. However, in the mechanism, there is an element of ambiguity. Its nature and form is unknown (jahalah), which is contained in the software. The use of digital money is also seen as having many disadvantages. The reason is that when the price goes up, this digital money will be sold, and even the price can go up to zero. Here there is a dark side that is to draw fate and make a profit. So to avoid harm, this digital money is not recommended to be used.
Operations of the Institution of Baitul Mal Wa At-Tamwil under the Perspective of al-Kulliyat al-Khamsah of the al-Shatibi’s Maqasid al-Shari‘ah
Authors: Iftihor Iftihor
Published: February 2022

The development of the Islamic economics in Indonesia shows progress and needs to be appreciated. It can be seen in the effort to find its relevance to the modern economy, including the application of maqasid shari'ah as the main support in every operational development of shari’ah financial institutions. In this study, researcher will focus on the issue of how to implement the maintenance of al-kulliyyat al-khamsah of maqasid shari'ah of al-Shatibi at BMT Mawaddah Pelenggagan, Pamekasan, Madura. This is a qualitative research that the data is gained by using documentation and interview technique. The results of this study are (1) the implementation of maintenance of maqasid shari'ah of al-Shatibi’s al-kulliyyat al-khamsah which has been carried out by BMT Mawaddah has been going well. (2) There are several patterns that are not implemented because there are obstacles in their implementation. (3) It is found that there is a form of conformity between the concept of maqasid shari'ah in general and that of al-Shatibi’s al-kulliyyat al-khamsah.
Perlindungan Konsumen terhadap Praktik Jual Beli Barang Kadaluwarsa yang Tidak Dapat Dikembalikan
Authors: Sakdiyah Sayidah Nisrul Halimatus
Published: February 2022

This article is the result of a qualitative research to answer questions about how the practice of buying and selling expired goods that cannot be returned at Hidayah store and how Islamic law and Law no. 8 of 1999 concerning consumer protection against the sale and purchase of expired goods that cannot be returned at the Hidayah store in Surabaya. From the results of this study, it can be concluded that: first, in practice, expired goods which are the object of buying and selling at the Hidayah store in Surabaya may not be returned when consumers directly choose their own goods at the store, while they can be returned if the customer places an order by telephone; second, the practice of buying and selling expired goods that cannot be returned is not allowed according to Islamic law, because it is not in accordance with the sale and purchase contract in which there is a khiya>r, namely disgrace khiya>r, where when the goods are defective (expired), then may be returned. In addition, in article 8 paragraph 4 of Law no. 8 of 1999 concerning consumer protection also emphasized the prohibition of business actors from trading expired goods and being obliged to withdraw them from circulation. Consumers should be more thorough and careful in checking the goods to be purchased by checking the expiration date of each food product. Meanwhile, shop owners should sell goods that do not expire so as not to harm consumers.
On the existence of weak solutions for a class of singular reaction diffusion systems
Authors: MESBAHİ Salim
Published: February 2022

We study the existence of weak solutions for a parabolic reaction diffusion model applied in Quenching endowed with singular production terms by reaction. The singularity is due to a potential occurrence of quenching localized to the domain boundary. The techniques used are based on energy estimates to approach nonsingular problems and uniform control on the set where singularities are localizing.
Hermite-Hadamard-type inequalities for conformable integrals
Authors: BOHNER Martin , KASHURİ Artion , MOHAMMED Pshtiwan , NAPOLES VALDES Juan Eduardo
Published: February 2022

In this study, some inequalities of Hermite-Hadamard type for integrals arising in conformable fractional calculus are presented. In fact, the obtained inequalities are not only valid for those integrals arising in conformable fractional calculus, but for more general integrals as well. Numerous known versions are recovered as special cases. We also illustrate our findings via applications to modified Bessel functions, special means, and midpoint approximations.
University-business-government relations in the development of the institutional environment of Russian regions
Authors:   Ural State University of Economics, Ekaterinburg, Russian Federation, Vlasova Natalia Y. , Lyashenko Elena A. ,   Ural State University of Economics, Ekaterinburg, Russian Federation
Published: February 2022

Relevance. University-business-government relations drive regional innovation. Therefore, in order to stimulate innovation, a favourable institutional environment is necessary. Research objective. The article proposes an original methodology to examine regional institutional environment based on the analysis of the interactions between the government, business and universities. Methods and data. The study relies on the statistical data on 12 Russian regions for a 6-year period. The data are used to create three sets of indicators characterizing the institutional sectors 'Government', 'Business' and 'Universities'. Regions are divided into clusters and ranked according to the state of their institutional environments by calculating subindices and the integral index. Other research methods include cluster analysis and correlation regression analysis. Results. The regions were grouped according to their innovation performance: in lagging regions, the interactions between the government, business and universities are inefficient, which means that their regional institutional environment is not conducive to innovation. The opposite situation is observed in the group of leaders. We also found that interactions between the government, business and universities have a direct influence on GRP. Conclusion. For each group of regions, areas for improvement and the corresponding measures were identified. Interventions may vary in terms of intensity and government participation.
Teaching Iramuteq for use in qualitative research according to YouTube videos: an exploratory-descriptive study
Authors: Soares Samira Silva Santos , Costa Carolina Cabral Pereira da , Carvalho Eloá Carneiro , Queiroz Ana Beatriz Azevedo , Peres Patrícia Lima Pereira , Souza Norma Valéria Dantas de Oliveira
Published: February 2022

Abstract Objectives: to identify the contents and characteristics of videos posted on YouTube that deal with Iramuteq software use as a tool to assist qualitative research and discuss the contribution of this social network to dissemination of knowledge, especially in the context of the COVID-19 pandemic. Method: this is an exploratory-descriptive study with a qualitative approach, carried out with YouTube videos, collected in June 2021 and subjected to thematic analysis. Results: a total of 43 videos on the researched topic were identified, with the majority (69.76%) published from 2020–2021. As for content, five categories were identified. Conclusion: the videos explain about Iramuteq installation, the textual corpus preparation, the errors identified by users and methods to correct them, the lexical analysis developed by the program and how to use it. The content is presented in a theoretical and practical way through the software interface presentation. Thus, YouTube’s contribution to developing teaching and disseminating knowledge is observed, both because it constitutes itself as a source for research and because it fosters dialogues between researchers, especially in a pandemic context.
CORRELATIONAL ANALYSIS BETWEEN ELDERLY PEOPLE’S SEXUALITY AND QUALITY OF LIFE
Authors: Souza Júnior Edison Vitório de , Souza Cícero Santos , Santos Gabriele da Silva , Silva Cristiane dos Santos , Cruz Diego Pires , Sawada Namie Okino
Published: February 2022

ABSTRACT Objective: to analyze the correlation between the experiences of elderly people’s sexuality and quality of life. Method: this is a sectional, descriptive and analytical study carried out with 592 elderly people living in northeastern Brazil. Data were collected exclusively online through Facebook, between August and October 2020. The Affective and Sexual Experiences Scale for Elderly was used to assess sexuality and the World Health Organization Quality of Life - Old to assess quality of life. Non-parametric statistics were used through the Mann-Whitney test, Spearman and Kruskal-Wallis correlations with application of Bonferroni correlation when necessary, with 95% confidence interval (p<0.05) for all statistical analyses. Results: there was a predominance of male elderly (60.5%), aged between 60 and 64 years (44.6%) and who had never received guidance on sexuality by healthcare professionals (75.8%). The best correlations found were positive between “intimacy” with “sexual activity” (ρ=0.561; p<0.001) and “affective relationships” (ρ=0.626; p<0.001). Conclusion: it was found that the dimensions “sexual activity” and “affective relationships” of sexuality had the best positive correlations with the “intimacy” facet of elderly people’s quality of life. In this sense, it is evident that healthcare professionals can adopt approaches with these dimensions in their consultations as a way to promote and protect elderly people’s quality of life, thus fulfilling the proposal of active aging.