bluuebunny/crossref_metadata_2025 huggingface dataset:
How Do Product Attributes and Reviews Moderate the Impact of Recommender Systems Through Purchase Stages?
Authors: Lee Dokyun , Hosanagar Kartik
Published: May 2020

We investigate the moderating effect of product attributes and review ratings on views, conversion|views (conversion conditional on views), and final conversion of a purchase-based collaborative filtering recommender system on an e-commerce site. We run a randomized field experiment on a top retailer with 184,375 users split into a recommender-treated group and a control group. We tag theory-driven attributes of 37,125 unique products via Amazon Mechanical Turk to augment the usual product data (e.g., review ratings, descriptions). By examining the recommender’s impact through different stages—awareness (views), salience (conversion|views), and final conversion—and across product types, we provide nuanced insights. The study confirms that the recommender increases views, conversion|views, and final conversion rates by 15.3%, 21.6%, and 7.5%, respectively, but this lift is moderated by product attributes and review ratings. We find that the lift on product views is greater for utilitarian products compared with hedonic products as well as for experience products compared with search products. In contrast, the lift on conversion|views rate is greater for hedonic products compared with utilitarian products. Furthermore, the lift on views rate is greater for products with higher average review ratings, which suggests that a recommender acts as a complement to review ratings, whereas the opposite is true for conversion|views, where recommender and review ratings are substitutes. Additionally, a recommender’s awareness lift is greater than its saliency impact. We discuss the potential mechanisms behind our results as well as their managerial implications.

This paper was accepted by David Simchi-Levi, information systems.
Development of Educational Comic with Local Wisdom to Foster Morality of Elementary School Students: A Need Analysis
Authors: Murti Desy Krisna , Gunarhadi Gunarhadi , Winarno Winarno
Published: May 2020

The curriculum of an elementary school of Indonesian education currently emphasizes the affective aspects as a result of student learning for the sustainability of national development. This fact encourages teachers the responsibility to create and develop effective learning tools to foster tolerance, nationalism, be communicative and friendly, love peace, and social care. The objective of the study is to analyze the needs of students in elementary schools towards the development of educational comics to foster character development. This study uses qualitative approach. Participants were 120 fifth grade students. A questionnaire was used to collect the data of the study. The data were analyzed using an interactive model. The results of the study revealed that there was an interest of students in comic media as a teaching aid containing local wisdom values for character education. In the aspect of construction, comics are needed that are related to the ideal scope and size of the comics. In the aspect of content required comic material set in a national culture containing local wisdom, presentation of the story with the contents of an illustration of nationalism and social awareness. As for the design aspect and appearance, characterizations of cartoons are needed, involving a variety of colors, fonts of proportional size. The conclusion of this research is the development of educational comics media with local wisdom is needed to fulfill the needs of elementary school students as an effort to foster character.
A review of the Korean Ampulicidae (Hymenoptera: Apoidea), with a description of a new species

Authors: KIM JEONG-KYU
Published: May 2020

The Korean Ampulicidae is studied including recently collected specimens. Three species of the genus Ampulex are recognized including one new species, namely Ampulex kurarensis Yasumatsu, A. satoi Yasumatsu, and A. nigripronota sp. nov. The non-type materials of A. satoi and the Korean localities of A. kurarensis are reported for the first time. However, it is noted that there has been no material formally evidencing the occurrence of A. dissector in Korea. The new species is easily recognized by black pronotum with flat (not tuberculate subapically) and transversely ridged collar. A key to the Korean species of the genus Ampulex is provided. A description of the new species and taxonomic notes of each previously described species are provided. Key words: Taxonomy, Ampulex nigripronota sp. nov., Ampulex kurarensis, Ampulex satoi, key, diagnosis
Tensile Properties and Fracture Morphology of Polyethylene Terephthalate Mixed Rice Starch Particle Based Blend Composites
Authors: Sumarji Sumarji , Aqsho Mochamad Gerindo Dwi , Basuki Hari Arbiantara , Asrofi Mochamad
Published: May 2020

This study examines the effect of addition rice starch particle (RSP) in Polyethylene terephthalate (PET) based blend composites. The concentration of RSP in PET was varied at 0, 5, 10, 15 and 20 wt% with fixed percentage of sorbitol for 2 ml. The blend composites were produced by solution mixing method. All samples were tested by tensile and morphological observation after tensile test. The tensile test proves that the addition of RSP in PET increased tensile strength of blend composites. The maximum tensile strength was in 15 wt% RSP in PET for 9.79 MPa. Optical microscope displays minimum porosity with good fusion between RSP and PET. The addition of starch in polymer is suggested to reduce the percentage of using non-biodegradable polymer plastic. This research is important due to the development of biodegradable polymer.
‘Frozen shoulder’ is ill-defined. How can it be described better?
Authors: Abrassart Sophie , Kolo Franck , Piotton Sébastian , Chih-Hao Chiu Joe , Stirling Patrick , Hoffmeyer Pierre , Lädermann Alexandre
Published: May 2020

Frozen shoulder, a common and debilitating shoulder complaint, has been the subject of uncertainty within the scientific literature and clinical practice. We performed an electronic PubMed search on all (1559) articles mentioning ‘frozen shoulder’ or ‘adhesive capsulitis’ to understand and qualify the range of naming, classification and natural history of the disease. We identified and reviewed six key thought leadership papers published in the past 10 years and all (24) systematic reviews published on frozen shoulder or adhesive capsulitis in the past five years. This revealed that, while key thought leaders such as the ISAKOS Upper Extremity Council are unequivocal that ‘adhesive capsulitis’ is an inappropriate term, the long-term and short-term trends showed the literature (63% of systematic reviews assessed) preferred ‘adhesive capsulitis’. The literature was divided as to whether or not to classify the complaint as primary only (9 of 24) or primary and secondary (9 of 24); six did not touch on classification. Furthermore, despite a systematic review in 2016 showing no evidence to support a three-phase self-limiting progression of frozen shoulder, 11 of 12 (92%) systematic reviews that mentioned phasing described a three-phase progression. Eight (33%) described it as ‘self-limiting’, three (13%) described it as self-limiting in ‘nearly all’ or ‘most’ cases, and six (25%) stated that it was not self-limiting; seven (29%) did not touch on disease resolution. We call for a data and patient-oriented approach to the classification and description of the natural history of the disease, and recommend authors and clinicians (1) use the term ‘frozen shoulder’ over ‘adhesive capsulitis’, (2) use an updated definition of the disease which recognizes the often severe pain suffered, and (3) avoid the confusing and potentially harmful repetition of the natural history of the disease as a three-phase, self-limiting condition.

Cite this article: EFORT Open Rev 2020;5:273-279.DOI: 10.1302/2058-5241.5.190032
Performance Assessment of a Self-propelled Paddy Grain Thresher under Different Threshing Functional Parameters
Authors: LOOH George Ashwehmbom , MANGEH (III) Fondzenyuy Cedric , WANG Xunwei , WANG Xiushan
Published: May 2020

Highlights

This research was aimed at assessing the performance of a self-propelled paddy grain thresher.

Increasing cylinder speed increased the threshing percentage and percentage of broken grains of the machine.

More broken grains were obtained at a lower concave clearance.

The feed rate did not have much significance on the performance parameters that were evaluated.

Abstract.This research was conducted to assess the performance of a self-propelled mini combine harvester, model number 4LZ-0.8 under different threshing functional parameters such as cylinder speed, concave clearance, and feed rate. An indoor experiment was conducted using the mini combine with an axial flow threshing cylinder and tangential feeding of material. These functional parameters were set at 5 levels each. The responses were obtained in terms of threshing percentage, percentage of unthreshed grains and percentage of broken grains. Response values were analyzed using the response surface tool (rstool) in MATLAB. Analysis of variance was done to determine the significant effects of the factor variations on the response values. MATLAB was used to present response surface graphs that were used to describe the variations of the responses as the factors changed from one level to the other. Results showed that with an increase in cylinder speed from 697 to 1202 rpm, the percentage of broken grains increased significantly from 0.0384% to 3.4052%, respectively. At cylinder speeds of 697 and 1202 rpm, the percentage of unthreshed grains increased from 0.1515% to 0.2162%, respectively. Furthermore, an increase in feed rate decreased the threshing percentage. The highest threshing percentage was obtained at an average concave clearance of 27 mm. Furthermore, it was realized that increasing the concave clearance from 18 to 35 mm, equally increased the percentage of unthreshed grains from 0.1478% to 0.3177%. The percentage of grain damage decreased from 3.2758% to 0.0268% with an increase in concave clearance from 18 to 35 mm, respectively. From the results obtained, it was tested and suggested that operating the threshing cylinder at a cylinder speed of 1100 rpm, concave clearance of 27 mm and feed rate of 0.9 kg s-1 offered the best machine performance. At these suggested values of the operating parameters, the threshing percentage was 99.9801%, the percentage of broken grains was 0.0134%, and the percentage of unthreshed grains was 0.0199%. Keywords: Assessment, Axial threshing unit, Cylinder speed, Concave clearance, Feed rate, Functional parameters, Threshing percentage.
Development of a Variable-Rate Controller for a Low-Cost Precision Planter
Authors: Coelho Andre L.de F. , Queiroz Daniel M. de , Valente Domingos S.M. , Pinto Francisco A. C.
Published: May 2020

Highlights

A low-cost controller for variable-rate seeding was developed.

The controller successfully identified management zones and changed the angular velocity of the seed metering device.

The variable-rate controller maintained the actual seeding rate according to the prescribed seeding map.

Abstract. The use of machines for variable-rate applications is becoming popular in modern agriculture. Due to the presence of imported and complex components, the acquisition cost of these machines is high for smallholder farmers. Several studies have been carried out using low-cost components in the development of precision agriculture machines to facilitate their adoption in low-income agriculture. Thus, the objective of this work was to develop a variable-rate controller for a low-cost precision planter. The system was developed and installed on a 1-row manual planter with a horizontal perforated disk distributor. A direct-current electric motor was used to drive the seed metering device. The angular velocity of the electric motor was controlled by a BeagleBone Black single-board computer. A program was written in Python 3.6 language, and a graphical user interface was generated by using PyQt5. Field trials were performed with maize seeds using a 28-hole disk and a prescription seeding map with four management zones. The row spacing was 0.75 m, and the planter ground speed was close to 1.0 m s-1. Field tests showed that the controller was effective at identifying the four management zones and controlling the angular velocity of the motor. By counting the number of plants germinated in the field test, it was verified that the variation in the angular velocity of the motor produced a change in the planting density. At each management zone, the planting density corresponded to the prescribed seeding map. The total cost of the parts used to assemble the controller was US$337.97, characterizing it as low cost. Successful field tests showed the potential for using low-cost components to develop variable-rate machines for smallholder farmers. Keywords: Low-income agriculture, Management zones, Precision agriculture, Single-board computer, Smallholder farmers.
Versius®: a new paradigm in robotic assisted surgery
Authors: Almoudaris A
Published: May 2020

Redefining today’s operating theatres.
Attitudes towards orthopaedic volunteering in low-resource settings
Authors: Berwin JT , Brown M , Bucknall V , Bose D ,   On behalf of the BOTA Committee
Published: May 2020

Trainee involvement in global surgery benefits core NHS values, but what barriers and motivations do volunteers experience?
Reasons for refusing blood
Authors: Wheeler Robert
Published: May 2020

Each month we take a close look at a recent legal case with implications for the surgical profession.
Ateliê de Conversação: uma experiência da língua viva no contato com imigrantes
Authors: Santos João Ricardo Fagundes dos , Diedrich Marlete Sandra
Published: May 2020

Este artigo apresenta uma ação do Grupo de Pesquisa em Processos de Interação em Discursos de Caráter Conversacional, envolvendo uma experiência de contato linguístico, por meio de práticas que visam garantir o direito à comunicação humana. O objetivo do trabalho é apresentar o projeto Ateliê de Conversação para imigrantes, o qual tem por finalidade promover, por meio da interação conversacional com alunos e professores do curso de Letras da Universidade de Passo Fundo/UPF, um tempo e um espaço de acolhida aos imigrantes vindos de diferentes países à cidade de Passo Fundo/RS. Vinculado às ações de extensão do Programa Ensino e Inovação, a proposta fundamenta-se teórica e metodologicamente em princípios da Teoria Dialógica do Discurso, do Círculo de Bakhtin (VOLÓCHINOV, 2017), segundo a qual a relação entre os indivíduos em sociedade e a expressão de cada um por meio de palavras é de natureza social e é um puro produto da interação social. Os encontros promovidos, inspirados nos Ateliers de Conversation franceses, têm obtido resultados relevantes, revelando duas frentes significativas do contato com a diversidade linguística: os brasileiros, falantes de português, vivem a experiência real de contato com falantes de diferentes línguas, na sua grande maioria, africanas e crioulas; os imigrantes, além de terem um contato mediado e praticarem o uso da língua portuguesa com o auxílio dos professores, também participam de diferentes vivências interacionais verdadeiramente significativas para todos os envolvidos, por meio da língua viva em interação, o que é condição para a vida digna em sociedade.
Da decodificação ao sentido: a lei da imanência linguística e fatores discursivos na proficiência leitora
Authors: De Andrade Patrícia Ribeiro
Published: May 2020

Neste texto, discutimos o problema da compreensão leitora, com o objetivo de auxiliar graduandos em Letras e professores pouco experientes, na difícil tarefa de promover o desenvolvimento da proficiência em leitura, por estudantes da educação básica. Realizamos, para tanto, um breve exercício de transposição didática, no qual se evidenciam dois níveis de construção do sentido, tomando como instrumento de estudo uma visão estruturalista da linguagem e a perspectiva discursiva bakhtiniana, para a prática de leitura, centrada no cotexto e no contexto discursivo, defendendo que, quanto mais conhecimento se busca, em torno da rede discursiva de um enunciado, maior e mais profunda é a compreensão deste discurso. Este material refere-se a uma comunicação que fizemos ao Congresso do Abralin em Cena, realizado em Feira de Santana, Bahia, no ano de 2018. Nesta oportunidade, ampliamos a discussão, com a finalidade de demonstrar dois aspectos importantes: em se tratando de prática pedagógica, as diferentes teorias podem se complementar para a construção de uma didática eficiente; ratificar a necessidade de que o componente de Língua Portuguesa tem como um dos principais atributos buscar formas de promover um constante e satisfatório exercício de compreensão discursivo-textual, atividade para qual a teoria dialógica bakhtiniana pode servir como um importante instrumento.
Dislocated spots and triple splittings of natural rainbows generated by large drop distortions, oscillations, and tilts
Authors: Haußmann Alexander
Published: May 2020

For an accurate modeling of natural rainbows, it is necessary to take into account the flattened shape of falling raindrops. Larger drops do also oscillate, and their axes exhibit tilt angles with respect to the vertical. In this paper, I will discuss two rare rainbow phenomena that are influenced by these effects: bright spots belonging to various rainbow orders, but appearing at remarkable angular distances from their traditional locations, as well as triple-split primary rainbows. While the former have not been observed in nature so far, the latter have been documented in a few photographs. This paper presents simulations based on natural drop size distributions using both a geometric optical model, as well as numerically calculated Möbius shifts applied to Debye series data.
Generation of isolated circularly polarized attosecond pulses by three-color laser field mixing
Authors: Shao Renzhi , Zhai Chunyang , Zhang Yinfu , Sun Ning , Cao Wei , Lan Pengfei , Lu Peixiang
Published: May 2020

We propose and theoretically demonstrate a method to generate the circularly polarized supercontinuum with three-color electric fields. The three-color field is synthesized from an orthogonally polarized two-color (OTC) laser field and an infrared gating field. All driving pulse durations are extended to 40 fs. We demonstrate that the three-color field imposes curved trajectories for ionized electrons and extends the time interval between each harmonic emitting. Through adjusting intensity ratios among three components of the driving field, a nearly circular isolated attosecond pulse can be generated.
High sensitivity and rapid response ultraviolet photodetector of a tetragonal CsPbCl3 perovskite single crystal
Authors: Rao Ziyue , Liang Wenyi , Huang Haiming , Ge Jun , Wang Weiliang , Pan Shusheng
Published: May 2020

Inorganic perovskite has attracted great interest due to its excellent optoelectronic properties. There are much less low band gap halide perovskite semiconductors, and CsPbCl3 is one of a wide band gap semiconductor in the perovskite family. In this study, a 0.5-mm CsPbCl3 perovskite single crystal with tetragonal structure and a direct band gap of 2.86 ± 0.3 eV is synthesized by flash evaporation of CsCl-PbCl2 solution. An ultraviolet photodetector based on a CsPbCl3 single crystal is fabricated, showing a photoresponse in a wide wavelength range of 280–435 nm, with a maximum responsivity of 0.272 A/W at 410 nm. Rise and decay response times of the device are less than 28.4 and 2.7 ms, respectively. The good performance of this CsPbCl3 photodetector indicates promising applications in the field of UV optoelectronic devices.
Glucocorticoid Receptor is distinct from Androgen Receptor function in Castrate-Resistant Prostate Cancer
Authors: El-Barbarawi Dalal , Long Tiha
Published: May 2020

Commonly used therapies for prostate cancer (PC) that block androgen receptor (AR) signaling inhibit regrowth, but aggressive castrate-resistant (CR)PC abrogates anti-androgen therapy. Recently published data shows that glucocorticoid receptor (GR) can drive the growth of CRPC when AR is blocked, by mimicking AR activity. Due to the evolution of CRPC into a more invasive disease, we hypothesized that GR-driven CRPC has different activities than AR that promote progression to metastatic disease. To test this hypothesis, we performed gene expression analysis on available datasets to determine which pathways correlate with GR target gene expression. Furthermore, we investigated gene expression in CWR-22Rv1 CRPC cells via qRT-PCR. Our results show that GR-activation in AR-blocked cells induces different genes than AR, suggesting that GR-driven CRPC is unique from AR-driven disease. The scientific contribution of our research may reveal new mechanisms by which GR drives PC progression and unveil novel therapeutic targets.
An Engineering Model of the COVID-19 Trajectory to Predict Success of Isolation Initiatives
Authors: King Steven , Striolo Alberto
Published: May 2020

The development of the Covid-19 pandemic both in terms of geographical footprint and the growth of cases and fatalities has been the subject of opportune comment and provided the news media with constant and compelling feed. Because the media-reported current state and expected future outcomes show wide variation, modelling has been attempted here using an engineering differential model to provide an evidence-based statement of future expectations.
Keratinocytes differentiation and wound healing in rats with streptozotocin – induced diabetes and severe hyperglycemia
Authors: Ivanov Evgeniy V. , Morozova Maria P. , Rzhavina Ekaterina M. , Gorbacheva Anna M. , Gavrilova Svetlana A. , Erdiakov Aleksei K. , Galstyan Gagik R. , Koshelev Vladimir B.
Published: May 2020

BACKGROUND: Diabetes mellitus leads to disruption of the skin repair processes, but the leading mechanisms of this pathology have not yet been identified. In this regard, in our work, we decided to check how hyperglycaemia affects the process of keratinocyte phenotype changes during wound healing.
AIMS: To study the effect of hyperglycaemia on wound healing and differentiation of keratinocytes in a rat streptozotocin-induced diabetes model.
MATERIALS AND METHODS: Diabetes mellitus was induced in rats by using streptozotocin, 65 mg / kg, intraperitoneally, once. The wound was applied in the supra-scapular region on the 42nd day, after which (after 8, 16, and 24 days) the repair process was evaluated using histological methods. Immunohistochemistry was used to evaluate the expression of cytokeratin-10 and cytokeratin-17.
RESULTS: In rats with diabetes mellitus, wound healing slowed down in the later stages, compared with the control group. In general, wound healing was accompanied by an increase in the expression of cytokeratin-10 in its region compared with intact skin, and contractile keratinocytes activation was disrupted in diabetic rat wounds.
CONCLUSIONS: Hyperglycaemia slightly slows wound healing in rats and impairs contractile keratinocytes activation.
MRI of the arterial wall in resistant hypertension associated with type 2 diabetes mellitus
Authors: Ryumshina Nadezhda I. , Falkovskaya Alla Y. , Gusakova Anna M. , Mordovin Victor F. , Usov Vladimir Y.
Published: May 2020

BACKGROUND: Damage of arterial walls in diabetes mellitus associated with arterial hypertension is major factor delivering lesion of target organs. Currently, enough data is not available about imaging and quantitative evaluations of arterial wall. There is no enough data available about the relations between MRI and inflammatory and metabolic markers in patients with resistant arterial hypertension concomitant with diabetes mellitus.
AIMS: Quantitative assessment of the intensity of paramagnetic contrast enhancement of the arterial wall, in particular renal arteries walls, in relation with inflammatory and metabolic markers in patients with resistant arterial hypertension concomitant with diabetes mellitus.
MATERIALS AND METHODS: The study groups were comprised of 28 patients (ageing 60,76,5 years) with resistant hypertension accompanied with diabetes mellitus and 17 patients (aging 57,75,0 years) with resistant hypertension without diabetes mellitus. The average systolic/diastolic pressure obtained from a 24-h monitor study was as high as 156,816,9/81,9,013,5 mm Hg in the group with diabetes and 154,811,9/88,510,4 mm Hg in the group without diabetes. The values of glycaemia, the level of glycated haemoglobin, and C-reactive protein were determined. The MRI studies were carried out using 1,5 Т MRI Toshiba Vantage Titan scanner. After that, the intravenous contrast enhancement has been carried out (with 0,5 М paramagnetic, as 0,2 ml/Kg). The index of enhancement (IE) was then calculated from these data, as a ratio of intensities of contrast-enhanced image to the initial nonenhanced MRI scan.
RESULTS: The correlation was obtained for IE of arterial wall and data of blood pressure. Increased IE was correlated with ageing and hemodynamic factors. Also the correlation was observed for IE proximal, medium and distal parts of renal arteries and values of glycaemia and NOMA-index were obtained. Negatively correlated values for IE and adiponectin in the group with diabetes mellitus were obtained. The association between IE and C-reactive protein remained significant in the group without diabetes mellitus.
CONCLUSIONS: MRI with contrast enhancement of arterial walls allows evaluating the anatomy of renal arteries and allows quantifying the pathophysiologic factors of their walls in patients with resistant hypertension accompanied with diabetes mellitus. MRI characteristics of the arterial wall were associated not only with hemodynamic and metabolic data, but also with markers of inflammation.
Diabetic retinopathy: history, modern approaches to management, prospective views of prevention and treatment
Authors: Demidova Tatiana Y. , Kozhevnikov Alexander A.
Published: May 2020

Diabetic retinopathy (DR) is a serious complication of diabetes mellitus (DM). As DR progresses, it could be complicated with a significant decrease or complete loss of vision. It is the leading cause of blindness in the working-age population and, according to global estimates, occurs in one in every three patients with diabetes. DR has been studied for more than 160 years, and the implementation of retinal laser coagulation into clinical practice in the 20th century, and then vascular endothelial growth factor (VEGF) inhibitors in the 21th century, allowed us to influence vascular proliferation in DR and reduce the risk of vision loss from diabetic macular oedema (DME). However, these tools can only stop the progression of DR at the stages with risk of complications with vision loss, and prevention screenings and the impact on risk factors (hyperglycaemia, arterial hypertension, and dyslipidemia) remains as the main method of management of DR. Possible new risk factors (hypodynamy, obesity, body weight deficiency, and obstructive sleep apnoea syndrome) attract a lot of attention, and there is ongoing research for early markers of DR in the fundus, which could allow more active influence on the pathological process in its early stages. This review focuses on epidemiology, history of research, proven and possible risk factors, and current and promising approaches to the prevention and treatment of DR, including accurate, less traumatic laser techniques (PASCAL, NAVILAS, and D-MPL), and intravitreal antiangiogenic drugs in studies.
Optometry at the Intersection of Gender, Race and Class in the Early Twentieth Century
Authors: Hebert Kirsten L.
Published: May 2020

This biographical study of Dr. Bess Francis Coleman profiles the experience of an African American woman in  the early twentieth century, employing a critical lens to explore how race, gender and class shaped her life and career, and the methodology of microhistory to draw out the ways in which her life exemplifies and signifies the essential work of African American women professionals during this era. Dr. Bess “Bessie” Anderson Francis Coleman (1893-1967) was the first documented African American woman licensed to practice optometry in the United States. A native of Kentucky, Dr. Coleman’s first career was as a schoolteacher in her native Harrodsburg. In 1923, she married pharmacist John B. Coleman, Jr. The Colemans moved to West Palm Beach, Florida in 1923, and then Chicago, Illinois in 1925 where they opened a chain of pharmacies in the Bronzeville neighborhood. Dr. Coleman received her training at the Northern Illinois College of Optometry from 1932-1934. In 1935, she moved back to Kentucky with her son, where she cared for her elderly parents and opened the only optometry practice in Lexington’s Brucetown neighborhood, well-known for its African American physicians. In 1942, she retired to Denver, Colorado’s African American enclave, Whittier. She died in 1967 and was buried in the Maple Grove Cemetery in her hometown.
Possible result of extreme parenting: Power of helicopter parenting attitude to predict ego inflation
Authors: Yılmaz Hasan
Published: May 2020

The concept of helicopter parenting is used to describe a parental disposition that is excessively child-oriented, intrusive and limiting to child’s autonomy. It is characterized by parents being overly concerned about child's future, making great efforts to avoid possible negative outcomes, preferring to plan and handle child’s life and even executing child’s tasks in his/her place. The objective of this study is to establish the relation between helicopter parental attitudes and ego inflation. The Perceived Helicopter Parental Attitude Scale and Ego Inflation Scale were applied to 432 people with an age group of 24-34 years. Hypotheses of the study were tested using structural equation modelling after results related to the fit values and factor loads of the scales were determined to be appropriate and adequate. The study found that 42.80 percent of the change in the inflated ego reported in young adults can be explained by a helicopter maternal attitude (R2 = .43). Helicopter paternal attitude accounted for 22.10 percent of the change in the inflated ego observed in young adults (R2 = .22). It has, thus, been demonstrated that ego inflation is triggered by helicopter parental attitudes and helicopter attitudes of mothers are more successful in creating ego inflation than those of fathers. We hope that the findings of the present study can be used in parent education and family counselling practices.
Testing the effectiveness of a gym orientation program
Authors: Koutsoubakis Dimitri
Published: May 2020

The study was set at a commercial Fitness Center facility based in Dubai, UAE, and aimed to test the effectiveness of a Gym Orientation Program designed to help new members with little-to-no training experience acclimatize to the facility and to fitness training.

The practical end of all orientation programs is to ameliorate Member Retention; the purpose of the present study was to investigate whether the Gym Orientation Program supported member retention via its impact on intermediary perceptual constructs.

A longitudinal design was used to collect data at three distinct points in the customer journey, on-boarding, completion of the Gym Orientation Program, and at Membership Renewal, one year after joining. Questionnaire instruments were adapted from studies on Student Retention in Higher Education.

Multivariate analysis of covariance and multiple regression were used to determine whether Gym Members who participated in the Gym Orientation Program differed significantly from those who did not on the basis of institutional and social integration constructs. Multiple Regression was used to assess the impact of the integration metrics on self-reported intent to persist.

Results suggest that the Gym Orientation Program promoted significantly increased levels of integration and intent to persist, ultimately leading to increased Member Retention. In terms of practical implications, the findings support the conclusion that it is possible to design and implement effective interventions that explicitly aim to increase the sense of institutional and social belonging in order to increase Member Retention.

The study adopts an original, interdisciplinary approach by deploying the methodological paradigm deployed and refined over five decades in the field of student retention scholarship within Higher Education, underlining the conviction that there is much to be gained by adopting an interdisciplinary perspective.
Application of Differential Evolution in the Solution of Stiff System of Ordinary Differential Equations
Authors: Wusu Ashiribo Senapon , Olabanjo Olusola , Aribisala Benjamin
Published: May 2020

In recent times, the adaptation of evolutionary optimization algorithms for obtaining optimal solutions of many classical problems is gaining popularity. In this paper, optimal approximate solutions of initial--valued stiff system of first--order Ordinary Differential Equation (ODE) are obtained by converting the ODE into constrained optimization problem. The later is then solve via differential evolution algorithm. To illustrate the efficiency of the proposed approach, two numerical examples were considered. This approach showed significant improvement on the accuracy of the results produced compared with existing methods discussed in literature.
Statistical Inference for k (k>=3) Lognormal Means from Left Censored Data
Authors: Aboueissa Abou El-Makarim
Published: May 2020

The occurrence of censored data due to less than detectable measurements is a common problem with environmental data such as quality and quantity monitoring applications of water, soil, and air samples. The log-normal distribution is one of the most common distributions used for modeling skewed and positive data. Over the past decades, various methods for comparing the parameters of two lognormal distributions in the presence censored data have been proposed. Some of them are differing in terms of how the statistic test adjust to accept or to reject the null hypothesis. As a model distribution of measured environmental and/or biomedical data, log-normal distribution is considered. Logmormal means can be compared either by confidence intervals or hypothesis testing procedures. In this article, a new test procedure for comparing the means of k (k >= 3) lognormal distributions in the presence of left-censored data is introduced and evaluated. Asymptotic chi-square test is used in the proposed test procedure. A simulation study was performed to examine the power and the size of the proposed test procedure introduced in this article utilizing a computer program written in the R language. We find  analytically that the considered test procedure is doing well through comparing the size and power of the statistic test.
A Deep Hyper Siamese Network for Real-Time Object Tracking
Authors: Zhao Yongpeng , Yu Lasheng , Zheng Xiaopeng
Published: May 2020

Siamese networks have drawn increasing interest in the field of visual object tracking due to their balance of precision and efficiency. However, Siamese trackers use relatively shallow backbone networks, such as AlexNet, and therefore do not take full advantage of the capabilities of modern deep convolutional neural networks (CNNs). Moreover, the feature representations of the target object in a Siamese tracker are extracted through the last layer of CNNs and mainly capture semantic information, which causes the tracker's precision to be relatively low and to drift easily in the presence of similar distractors. In this paper, a new nonpadding residual unit (NPRU) is designed and used to stack a 22-layer deep ResNet, referred as ResNet22. After utilizing ResNet22 as the backbone network, we can build a deep Siamese network, which can greatly enhance the tracking performance. Considering that the different levels of the feature maps of the CNN represent different aspects of the target object, we aggregated different deep convolutional layers to make use of ResNet22's multilevel feature maps, which can form hyperfeature representations of targets. The designed deep hyper Siamese network is named DHSiam. Experimental results show that DHSiam has achieved significant improvement on multiple benchmark datasets.
Analysis of the dependence of winter wheat yielding capacity formation on mineral nutrition in irrigation conditions of southern steppe of Ukraine
Authors: Domaratskyi Yevhenii , Mialkovskyi Ruslan , Koberniuk Olena , Muliarchuk Oksana , Bezvikonnyi Petro
Published: May 2020

This article is dedicated to the research of analysis of the dependence of growth and development of winter wheat varieties Khersonska Awnless and Odeska 267 on conditions of moisture provision and mineral nutrition status, impact of indicated factors and formation of yielding capacity and grain quality. Years of research significantly varied in rainfall amount during growing season. According to moisture supply, 2016 was dry, 2017 was average humid and 2018 was subhumid, which had an impact on grain yield equation. The lowest winter wheat productivity level was formed in 2016. Under supplemental watering without fertilizers the yield of the Khersonska Awnless variety was at the level 2.07 t/ha, and of Odeska 267 variety - 1.51 t/ha. Under provision of vegetative watering, the yielding capacity increased to 3.14 and 2.94 t/ha. Fertilizers also had significant impact on production processes of plants, accumulation of over ground biomass, area of assimilating surface that resulted in the yield increase of winter wheat. On average, over the years of research the most significant influence among considered factors had fertilizers - 43%, irrigation - 32% and variety content of winter wheat - 9%.
Strategies in planning research integrity training (evidence of Ukraine)
Authors: Knysh Olena , Liaska Oksana , Bielinska Iryna , Levandovska Iryna , Vasylieva Olena
Published: May 2020

In recent years, much work has been done to promote integrity in academic community in Ukraine. Still, educational interventions introduced to the local level have not yet become an effective instrument to foster integrity in academia. Current research aims to discuss the key motivational factors that influence the effectiveness of integrity trainings for early-career researchers at Ukrainian universities in order to identify the possible gaps during implementation of research integrity education at the institutional level; highlights the role education plays in fostering research integrity; explores the key factors that influence early-career researcher’s professional development; proposes the possible content of integrity workshop for early-career researchers; analyzes the interview findings to better understand the impact of education interventions on research behavior; and offers recommendations that could help the academic community develop educational content that increases awareness on research misconduct and detrimental practices. The article is based on the experience of conducting the research integrity workshops at the regional institution of higher education. Data was carried out as qualitative face-to-face semi-structured interviews to learn about the sources of knowledge on research integrity. The results of the study have shown that integrity trainings at Ukrainian higher education institutions goal not only to introduce researchers to integrity knowledge, but also to engage them in discussion about responsibility in science. The findings of the study may help to identify key factors that influence the effectiveness of research integrity trainings and develop effective tools to promote research integrity at the Ukrainian higher educational institutions.
Lombard activities and social security of the country: interrelation and interdependence
Authors: Kozachenko Ganna , Zavora Taina , Shapoval Liudmyla
Published: May 2020

The place and value of pawnshops in the financial market are considered in the article. The main indicators of activity of pawnshops are analyzed. The advantages and disadvantages of using the pawnshop services by the population are substantiated. The growth rate of pawnshop activity in Ukraine is determined on the basis of the method of estimating the integral indicator. The nature and specifics of the influence of social security indicators on the activity of pawnshops in Ukraine by means of correlation analysis are revealed. In the constructed econometric model, the factors that influence are the social security indicators of the country and the dependent values are indicators of pawnshop activity. The obtained results revealed a significant correlation between the social security indicators of the country and the indicators of pawnshop activity. The detail of the analysis showed the greatest correlation between the pawnshops' performance and the social security indicator – the ratio of the average monthly nominal wage to the subsistence level for one able-bodied person.
Development of creative tourism as a management tool for recreational development of economically depressive regions of Ukrainian carpathians
Authors: Svidruk Irena , Topornytska Mariia , Melnyk Iryna
Published: May 2020

The purpose of the research is to study the current state and possible prospects for the development of creative tourism in the Ukrainian part of the Carpathians, in particular, mountain recreational zones of Skole district of Lviv region. The methods of interviewing the subjects of tourism activity of the Carpathian region of Lviv Oblast are used to analyze the current state and creative potential, focus groups on potential acquirers of creative tourism services are created; situational analysis of possible scenarios for the tourism business of Skolivschyina is conducted. We analyze the definition of creative tourism and its conceptual differences from other types of tourism. As a result of the study of the recreational and cultural offer available in the mountainous regions of the Lviv region of Ukraine and the analysis of the development of modern tendencies of the development of creative tourism, the directions and tools of the innovative restructuring of the tourist model of Skolivschyna are proposed to enhance its creative component. Economically depressed regions of the Ukrainian Carpathians, in particular the Skole district of Lviv region, can take the leading positions in the resort direction of servicing flows of both Ukrainian and foreign tourists due to the active development of creative forms of tourism. The development of creative tourism will help increase the employment of local people, international cooperation, attract tourists to the knowledge of the rich natural and historical and cultural heritage of Skole region, preserve the ecological balance of the region. Implementation of creative ideas into the real practice of tourist services in Skole region opens up real prospects for strengthening synergistic effects on the development of other micro-destinations of economically depressed regions of the Ukrainian Carpathians.
Analysis and target priorities of system and structural transformation of the Ukrainian social sphere
Authors: Kalnitska Marina , Smochko Valeriia , Pidlypna Radmila , Sydorchuk Orystlava
Published: May 2020

The study is devoted to the analysis of the transformation of the social development of Ukraine and the determination of a system of target priorities designed to ensure the effectiveness and efficiency of state social policy. The research methodology is based on World Bank tools and official statistical observations of the Ukrainian State Statistics Service, as well as the Methodology for Comprehensive Poverty Assessment and Living Wage Methodology officially adopted in Ukraine. The research results indicate a critically high growth rate of poverty, the growing dependence of citizens of Ukraine on social support from the state. An analysis of social development also indicates a high level of deprivation poverty and its destabilizing dynamics. It was revealed that the dominant drawbacks of state regulation of the social sphere are the unformed normative and methodological support for monitoring and adjusting the levels of social standards, the absence of reforms in the systems of pension provision, education and science, medicine, housing, and communal services, and regulation of employment. So, institutional regulation of the parameters of the development of the social sphere in Ukraine is insufficient and does not provide a solution to the critical problems of the demographic crisis, labour emigration, poverty alleviation, and, therefore, is not able to ensure sustainable social and economic development of the state. The strategic priorities of the system and structural transformation of the social sphere of Ukraine are the formation and establishment of the composition and structure of the elements of the social sphere system, the creation of a full-fledged social infrastructure and the institutional environment for its functioning, which will create conditions for the realization of citizens' constitutional rights to social protection.
Quality control of auditing: Ukrainian prospects
Authors: Khorunzhak Nadiya , Belova Iryna , Zavytii Olha , Tomchuk Viktor , Fabiianska Viktoriia
Published: May 2020

The authors conducted a study of the current audit quality control system in Ukraine to develop proposals according to the main areas of its development and improvement based on the positive foreign experience and criteria determined by users of audit services. The information base of the empirical study was the data from the reports of the Audit Chamber of Ukraine on the activities of audit companies and their statistical indicators. The results of the study, analytical findings and recommendations for practice and research prospects are presented in the article. The provisions of the current legislation of Ukraine are used as a source of representation of conceptual definitions and methods for assessing the quality of audit in Ukraine. The research methodology is based on theoretical generalizations and the use of the scientific tools, including comparative analysis, a survey of users of audit services regarding its qualitative characteristics and the study of the experience of foreign countries. The necessity of introducing social (public) supervision, development of internal audit quality control, increasing the responsibility of audit entities, will help to overcome the identified shortcomings associated with the quality parameters of the provided audit services. A number of hypotheses are formulated, which were confirmed during the study or require additional research. The proposed recommendations can have a positive impact on the overall quality of audit activities, provided that they are put into practice in a comprehensive manner. Thus, it is not necessary that they all be implemented at the same time. sequential implementation option is possible.
Behavioral Characterization ofdmrt3aMutant Zebrafish Reveals Crucial Aspects of Vertebrate Locomotion through Phenotypes Related to Acceleration
Authors: del Pozo Ana , Manuel Remy , Iglesias Gonzalez Ana Belen , Koning Harmen Kornelis , Habicher Judith , Zhang Hanqing , Allalou Amin , Kullander Klas , Boije Henrik
Published: May 2020

Vertebrate locomotion is orchestrated by spinal interneurons making up a central pattern generator. Proper coordination of activity, both within and between segments, is required to generate the desired locomotor output. This coordination is altered during acceleration to ensure the correct recruitment of muscles for the chosen speed. The transcription factorDmrt3has been proposed to shape the patterned output at different gaits in horses and mice. Here, we characterizeddmrt3amutant zebrafish, which showed a strong, transient, locomotor phenotype in developing larvae. During beat-and-glide swimming, mutant larvae showed fewer and shorter movements with decreased velocity and acceleration. Developmental compensation likely occurs as the analyzed behaviors did not differ from wild-type at older larval stages. However, analysis of maximum swim speed in juveniles suggests that some defects persist within the mature locomotor network ofdmrt3amutants. Our results reveal the pivotal role Dmrt3 neurons play in shaping the patterned output during acceleration in vertebrates.