bluuebunny/crossref_metadata_2025 huggingface dataset:
Catena: Collaboration, Cohesion and Continuity in Design Thinking and Making
Authors: Deeg Lohren , Metz Taylor , Tursky Richard , Deeg Lohren , Metz Taylor , Tursky Richard
Published: October 2020

In the interests of enhanced collaborative methods of design thinking, design communication, representation and rapid ideation, this article examines how a series of related activities and events, ‘catenated’ together, or forming a ‘catena’1 of design thinking, could create a clearer, more meaningful and more efficient portfolio of work for a beginning design studio. Drawing inspiration upon the operative verbs found in the work of sculptor Richard Serra,2 and using the artefacts from such activities to create generative design products and iterations across a semester schedule, this paper chronicles a series of active in-class collaborations over the course of a semester that allowed a cohort of students to connect a series of design projects together, rather than experience a series of unconnected learning objectives as was typical. References to learning theories including Jerome Bruner’s spiral curriculum and David Kolb’s theory of experiential learning3 informed the inquiry. Student feedback and reflection informed the areas of success and areas of improvement.
Autonomy and international investment agreements after Opinion 1/17
Authors: Kübek Gesa
Published: October 2020

The application and implications of the principle of autonomy for international investment agreements concluded by the Member States and the European Union (EU) has become a recurrent theme before the Court of Justice of the European Union. The decisions in Achmea and Opinion 1/17 show that autonomy unfolds differently in intra- and extra-EU investment relations and can only be preserved in the latter context. The present article examines this difference and, in light of Opinion 1/17, seeks to explain how and why the autonomy of EU law can be preserved for international investment agreements through careful treaty design. In addition, it sheds some light on the practical consequences for the EU’s and the Member States’ external investment relations.
Pajanan Personal PM2.5 dan Perubahan Biokimia Darah pada Petugas Penyapu Jalan
Authors: Ramdhan Doni Hikmat , Fajriyah Nurul , Yuniarti Astri
Published: October 2020

Latar belakang: Pajanan partikulatjalan raya akibat hasil pembakaran bahan bakar kendaraan dapat menyebabkan gangguan kesehatan yang dimulai dari perubahan kadar biokimia darah. Penelitian ini bertujuan untuk mengetahui apakah terdapat perbedaan biokimia darah pada sampel terpajan partikulatdan tidak terpajan partikulat..Metode: Penelitian ini bersifat deskriptif analitik dengan desain studi cross sectional. Populasi dalam penelitian ini adalah penyapu jalan raya yang bekerja membersihkan sampah dan kotoran di jalan raya. Melalui teknik purposive sampling didapatkan51 sampel yang diambil darahnya untuk diuji oleh laboratorium dan melihat kadar glukosa, insulin, hs-CRP, MDA dan TNF-α. Data dianalisis dengan uji t independen dan uji kai kuadrat.Hasil: Hasil penelitian menunjukkan bahwa terdapat perbedaan kadar glukosa, insulin, MDA dan TNF-α pada kelompok terpajan partikulatdan kelompok tidak terpajan partikulat(p=0,025; p=0,001; p=0,006; p=0,039).  Namun, tidak terdapat perbedaan kadar hs-CRP pada kelompok terpajan partikulatdan kelompok tidak terpajan partikulat(p=0,169).Simpulan: Disimpulkan bahwa pajanan partikulat halus atau ukuran diameter kurang 2.5 μm dapat berpengaruh terhadap kadar biokimia darah pada pekerja yang terpajan secara terus menerus, dilihat dari terdapat perbedaan pada glukosa, insulin, MDA dan TNF-α pada kedua kelompok sampel. ABSTRACTTitle: PM2.5 Personal Exposure and Blood Biochemical Changes among Road SweeperBackground: Highway particulate exposure due to the burning of vehicle fuel can cause health problems that begin with changes in blood biochemical levels. This study aims to determine whether there are differences in the biochemical blood samples exposed to PM2.5 and unexposed to PM2.5.Methods: This study is a descriptive-analytic with a cross-sectional design study. The population is the road sweeper who works cleaning trash and dirt on the highway. Through a purposive sampling technique, 51 blood samples were taken to be tested by the laboratory and looked at glucose, insulin, hs-CRP, MDA and TNF-α levels. Data were analyzed by independent t-test and chi-square test.Result: there were differences in the levels of glucose, insulin, MDA and TNF-α between exposed of PM2.5 and unexposed groups of PM2.5 (p = 0.025, p = 0.001, p = 0.006, p = 0.039). However, there was no difference in the levels of hs-CRP in the PM2.5 exposed group and the PM2.5 unexposed group (p = 0.169).Conclusion: The conclusion was that exposure to fine particulate or PM2.5 can affect the blood biochemical level in workers who exposed continuously, seen from differences in glucose, insulin, MDA and TNF-α in both groups of samples.
Acute Compartment Syndrome
Authors: Cepková Jana , Ungermann Leoš , Ehler Edvard
Published: October 2020

Acute compartment syndrome occurs most frequently in connection with injuries, terminal or chemical damage of tissues, ischemia, the activity of toxins or in patients with tissue ischemia or muscle necrosis. Clinical findings have found pronounced pain, followed by paresthesias, pallor, and paresis. Decreased pulsation of arteries has also been a frequent finding. In severe forms decompressive fasciotomy has been indicated within the first 12–24 hours after diagnosis. In the following paper, the authors present the case report of a 68-year woman who swallowed 1500 mg of trazodone as an attempt at suicide. After 12 hours her husband found her lying on the carpet with compression of the left arm under the trunk. The patient was treated conservatively and followed clinically, examined by ultrasonography, EMG and finally MRI.
Symptomatic Hypokalemia in a 19-Year-Old Student
Authors: Pereira Sara , Salgueiro André , Rosa Paula , Peixoto Carla , Ferreira Marta , Silva David
Published: October 2020

Primary hyperaldosteronism (PA) is the most common cause of secondary arterial hypertension and is frequently undiagnosed. It affects all ages but is more frequent between 20 and 60 years old. The clinical presentation is variable, and the diagnosis is based on screening and, in equivocal cases, confirmatory tests. A 19-year-old student presented with complaints of extreme fatigue, arterial hypertension, hypokalemia and metabolic alkalosis, raising a high index of suspicion for PA. Screening tests were performed and its expressiveness excluded the need of confirmatory tests. CT-scan showed a unilateral adrenal adenoma and the patient was submitted to laparoscopic adenectomy without complications. Prompt diagnosis and treatment are essential to avoid long term complications of PA.
Language-related episodes and pair dynamics in primary school CLIL learners: A comparison between proficiency-matched and student-selected pairs
Authors: Basterrechea María , Gallardo-del-Puerto Francisco
Published: October 2020

A considerable body of research within the interaction framework (Long, 1996) has centred on the language-related episodes (LREs) which occur when learners topicalize a specific linguistic item while they are engaged in meaning-focused tasks. Several studies have shown that the production of LREs may be influenced by the proficiency level of the learners (Kim & McDonough, 2008; Leeser, 2004). Sociocultural theory (Lantolf & Appel, 1994) has also explored collaborative work and the effect that pairing learners with the same proficiency levels or different patterns of interaction (Storch, 2002) has on the production of LREs (e.g., Mozaffari, 2017; Storch & Aldosari 2013), but little research has compared the effect of the pair formation method (student-selected vs. proficiency-matched) on young learners’ production of LREs and pair dynamics. This study compares young CLIL learners (aged 10-12) in student-selected and proficiency-matched pairs in task-based interaction. Results indicate that learners produce more meaning-based than form-based LREs, regardless of their pair formation method. The percentage of meaning-based LREs which are resolved accurately is much higher in proficiency-matched dyads than in student-selected ones. As for the patterns of interaction (Storch, 2002), the dynamics of proficiency-matched dyads are of a more collaborative nature than those of self-selected pairs.
How visual merchandising can improve fashion retail stores to adapt themselves to next generations
Authors: Oliveira Paulo Henrique Pinho , Lutterbach Maria Fernanda Tavares
Published: October 2020

Even though the digital market has grown on the last decade, the traditional store has been reinvented to offer a unique experience for the customers. On this way, there are many organizations in the world focusing their marketing researches to improve the “point of sales” (POS), they are very important to attract the consumer’s attention for the products of an organization. Over time, the POS has been changing and adapting itself to the different needs, and different desires, of new consumer generations (X, Y, Z). Therefore, the new generations are very different of the previous one, and the marketing researches needs to keep up with these new trends. Some marketing professionals were interviewed to presents in this article a diagnostic of some new practices that are being used by fashion’s retailers, to reach the new reality of consumers, using Visual Merchandising as a strategic tool to achieve success in sales.
Performance persistence of mutual funds: evidence from Bangladesh
Authors: Shahid Chowdhury Mohammad Abir , Ali Zahid , Usman Muhammad , Ullah Asad
Published: October 2020

Purpose: Since 1990s, the discussion on whether mutual funds can perform better and persistently as compare to market has become an ongoing issue. Current research investigates the performance persistence of equity mutual funds’, particularly in the financial market of Bangladesh.Theoretical Framework: Different researchers have strived to examine the performance of mutual funds by using numerous performance indicators and risk adjustment techniques.Design/Methodology/Approach: The equity mutual funds data for this study are obtained from DSE (Dhaka Stock Exchange) database. The sample set includes all open-end mutual funds from 2010 to 2015. There is no mutual fund that has ceased trade or merged with other mutual funds during the study period.Originality/Value: Broad literature have been directed on the performance and persistence of mutual funds in the American markets, while some of the studies also centered on Australia, China, Hong Kong and U.K. financial markets. However, in the context of Bangladesh’s financial market, no identical research has been carried on the performance persistence of mutual funds.Findings: The results reveal that the managers of equity mutual funds have selective ability to obtain higher returns in Bangladesh. Moreover, the past performance of mutual funds has an impact on their future performance. The size of mutual funds doesn’t have any impact on their performance. The parametric and non-parametric models demonstrate that as compare to long run, equity mutual funds in Bangladesh could perform persistently in the short-run.
Landslide site delineation from geometric signatures derived with the Hilbert–Huang transform for cases in Southern Taiwan
Authors: Yang Shun-Hsing , Liao Jyh-Jong , Pan Yi-Wen , Shih Peter Tian-Yuan
Published: October 2020

Landslides are a frequently occurring threat to human settlements. Along with global climate change, the occurrence of landslides is the forecast to be even more frequent than before. Among numerous factors, topography has been identified as a correlated subject and from which hillslope landslide-prone areas could be analyzed. Geometric signatures, including statistical descriptors, topographic grains, etc., provide an analytical way to quantify terrain. Various published literature, fast Fourier transform, fractals, wavelets, and other mathematical tools were applied for this parameterization. This study adopts the Hilbert–Huang transform (HHT) method to identify the geomorphological features of a landslide from topographic profiles. The sites of the study are four “large-scale potential landslide areas” registered in the government database located in Meinong, Shanlin, and Jiasian in southern Taiwan. The topographic mapping was conducted with an airborne light detection and ranging instrument. The resolution of the digital elevation model is 1 m. Each topographic profile was decomposed into a number of intrinsic mode function (IMF) components. Terrain characterization was then performed with the spectrum resulting from IMF decomposition. This research found that the features of landslides, including main scarp-head, minor scarp, gully, and flank, have strong correspondence to the features in the IMF spectrum, mainly from the first and the second IMF components. The geometric signatures derived with HHT could contribute to the delineation of the landslide area in addition to other signatures in the terrain analysis process.
Supercharacter theories for algebra group extensions
Authors: Panov Aleksandr Nikolaevich
Published: October 2020

We construct a few supercharacter theories for finite semidirect products where the normal subgroup is of algebra group type.
In the case of algebra groups, these supercharacter theories coincide with those of P. Diaconis and I. M. Isaacs.
For the parabolic subgroups of

GL
⁢

(
n
,

𝔽
q

)

{\mathrm{GL}(n,\mathbb{F}_{q})}

, the supercharacters and superclasses are classified.
The influence of the process parameters on the surface integrity during peripheral milling of Ti-6Al-4V
Authors: Wimmer Matthias , Shahul Hameed Muhammed Zubair , Wölfle Christoph , Weisbrodt Vanessa , Zaeh Michael Friedrich , Werner Ewald , Krempaszky Christian , Semm Thomas
Published: October 2020

The titanium alloy Ti-6Al-4V represents a significant metal portion of state-of-the-art aircraft structural and engine components. When critical structural components in the aerospace industry are manufactured with the objective to reach high reliability levels, surface integrity is one of the most relevant parameters used for evaluating the quality of machined surfaces. The residual stresses and the surface alteration induced by machining titanium alloys are critical due to safety and sustainability issues. In this paper, a series of end milling experiments was conducted to comprehensively characterize the surface integrity at various milling conditions. The experimental results have shown that the surface roughness value increases with the feed and the cutting velocity. However, the residual stress state in the surface layer zone is influenced by the variation of the process control variables. Here, compressive residual stresses occur both in cutting and in feed direction. In addition, a new type of sensory tool holder is presented, which should enable the indirect measurement of residual stresses during the milling process.
Anxiety sensitivity and posttraumatic stress symptoms in sexual assault survivors
Authors: Jessup Sarah C. , Blakey Shannon M. , Abramowitz Jonathan S.
Published: October 2020

Anxiety sensitivity (AS), the fear of anxiety-related physiological sensations, is a predictor of posttraumatic stress symptoms (PTSS) following a traumatic event, yet there is limited research on the relationship between AS and PTSS among sexual assault survivors. The present study was designed to test the hypothesis that AS would emerge as a statistical predictor of PTSS dimensions among community members and undergraduate students endorsing lifetime exposure to sexual trauma. Adults endorsing a history of sexual assault (N = 52) completed an online battery, including self-report measures of AS, general distress, dysfunctional trauma-related beliefs (i.e., posttraumatic cognitions), and PTSS. Although AS was associated with PTSS dimensions at the bivariate level (rs ranged .68–82), AS did not emerge as a significant unique predictor of PTSS dimensions in linear regression analyses after controlling for general distress and posttraumatic cognitions. In fact, general distress was the only significant statistical predictor of PTSS total and dimension scores (ps < 01). Study implications, limitations, and future directions are discussed.
Inducing and manipulating sensations of incompleteness
Authors: Taboas William , McKay Dean
Published: October 2020

Incompleteness (INC) and Harm Avoidance (HA) are known core dimensions of obsessive-compulsive disorder (OCD). Emotional processing and inhibitory learning (IL) have both been proposed as viable mechanisms of exposure for the alleviation of HA, yet the relationship with INC remains unclear. This study evaluated differential manipulation responses to induced INC. The authors specifically tested whether targeting the key component of IL, expectancy violation generated by the discrepancy between an articulated prediction and the actual exposure experience, would lead to improved outcomes. A sample of undergraduates (N = 68) completed a series of behavioral tasks to induce INC, followed by manipulations (exposure with or without articulated predictions) to reduce INC reactions. Results show that modest changes were observed following reduction manipulations following INC induction. Furthermore, heightened HA predicted the changes of induced sensations. Mediation tests showed that articulation of predicted sensations mediated pre- to postreduction ratings. Clinical and research implications are discussed.
Biased Neural Representation of Feature-Based Attention in the Human Frontoparietal Network
Authors: Gong Mengyuan , Liu Taosheng
Published: October 2020

Selective attention is a core cognitive function for efficient processing of information. Although it is well known that attention can modulate neural responses in many brain areas, the computational principles underlying attentional modulation remain unclear. Contrary to the prevailing view of a high-dimensional, distributed neural representation, here we show a surprisingly simple, biased neural representation for feature-based attention in a large dataset including five human fMRI studies. We found that when human participants (both sexes) selected one feature from a compound stimulus, voxels in many cortical areas responded consistently higher to one attended feature over the other. This univariate bias was consistent across brain areas within individual subjects. Importantly, this univariate bias showed a progressively stronger magnitude along the cortical hierarchy. In frontoparietal areas, the bias was strongest and contributed largely to pattern-based decoding, whereas early visual areas lacked such a bias. These findings suggest a gradual transition from a more analog to a more abstract representation of attentional priority along the cortical hierarchy. Biased neural responses in high-level areas likely reflect a low-dimensional neural code that can facilitate a robust representation and simple readout of cognitive variables.

SIGNIFICANCE STATEMENTIt is typically assumed that cognitive variables are represented by distributed population activities. Although this view is rooted in decades of work in the sensory system, it has not been rigorously tested at different levels of cortical hierarchy. Here we show a novel, low-dimensional coding scheme that dominated the representation of feature-based attention in frontoparietal areas. The simplicity of such a biased code may confer a robust representation of cognitive variables, such as attentional selection, working memory, and decision-making.
Gregory of Tours and the Decem Libri Historiarum between Religious Belief and Rhetorical Habit
Authors: Bjornlie M. Shane
Published: October 2020

This study examines the rhetorical structure of the Decem libri historiarum of Gregory of Tours. Whereas previous studies have drawn attention to Gregory's habit of pairing parallel narrative threads for the purpose of comparing what he considered to be appropriate and inappropriate behavior, the inconsistencies in that rhetorical strategy (e.g., lack of criticism for Clovis' parricidal policies of expansion and uncharacteristic moments of praise for Chilperic, the “Herod and Nero” of Gregory's lifetime) have been attributed to Gregory's penchant for the ironic or satirical. This study takes the view that Gregory purposefully constructed complicated, and at times contradictory, profiles for the dramatis personae of his history in order to generate a sense of suspended judgment for which he would become the ultimate arbiter at the end of an individual's life. This style of narrating the lives of individuals made Gregory himself a dramatis persona in his own history by investing him with absolute interpretative authority and authority over the construction of historical memory. Gregory's careful development of that authority was itself a strategy for survival in a very fluid, and often volatile, political environment.
Skeletal muscle status, autonomic balance and short-term results of cardiac surgery
Authors: Sumin Alexey N. , Oleinik Pavel A. , Bezdenezhnykh Andrey V.
Published: October 2020

Purpose — To study the association between the status of lower extremities’ skeletal muscles and autonomic balance with the short-term results of cardiac surgery patients. Methods — 64 patients (57 men, median age 63 years) who underwent non-urgent cardiac surgery at the Research Institute for Complex Issues of Cardiovascular Diseases clinic from March 2015 to March 2016 were included in the study. Patients with exacerbation of underlying disease were excluded from the study. Additionally, muscle status of the patients was assessed using static-dynamic tests on a multifunctional training apparatus, and the autonomic nervous system (ANS) state was evaluated using the ORTOexpert program during an active orthostatic test. 9 patients developed complications in the postoperative period; groups with the postoperative complications present and absent were compared according to the studied preoperative indicators. Results — The following indicators were revealed more often prior to the surgery in the group with the postoperative complications: cardiac arrhythmias (p=0.023), aortic valve regurgitation (p=0.002), left ventricle aneurysm (p=0.007), carotid stenosis (p=0.036), decreased muscle strength of the upper and lower extremities (p=0.047 and p=0.046), sympathetic activation (LF/HF ratio p=0.028), and ANS stress in response to the test. Conclusion — Low status of skeletal muscles (upper and lower extremities) and ANS sympathetic activation and the overstrain of its adaptive mechanisms were associated with development of postoperative complications after cardiac surgery, along with severity of the underlying cardiac pathology, risk and duration of the surgery.
Morphometric parameters of mammary glands in women of different body types in the normal condition and in case of tubular breast deformity
Authors: Pakhomova Regina A. , Karapetyan Georgy E. , Kochetova Lyudmila V. , Sindeeva Lyudmila V. , Karelina Natalya A. , Ratushny Nikolay A.
Published: October 2020

Objective — to reveal the incidence of tubular breast deformity and to compare macromorphometric breast data with the constitution of women who need aesthetic breast correction. Material and Methods — There was conducted macromorphometry of the mammary glands in 101 women using the Body Logic system, as well as anthropometry and somatotyping with indication of sthenic, ectomorph and endomorph body types. Results — Among women with aesthetic problems of mammary glands, tubular breast deformity was revealed in 17.6% of sthenics, 23.5% of ectomorphs, and 58.8% of endomorphs. The Norwood Index, as an objective criterion of tubularity, had the largest value in endomorph women. Conclusion — Endomorph women were more susceptible to the development of tubular breast deformity in comparison with women of other body types.
Application of analytic hierarchy process to evaluate design criteria for humane trap cage.
Authors: Paramasivam Sivajothi , Munisamy Hari Krishnan , Rayappan Santhansamy
Published: October 2020

Atrocities against stray animal’s especially large number of scavenging street dogs have increased at an alarming rate nationwide. Relevant authorities, in view of controlling stray animal population and curb chronic infections mulled cracking down on stray dogs using inhumane methods such as usage of tranquilizers or forcefully capturing. Thus, causing injuries, trauma and potentially death to these captured strays. Even though statistics about the number of violent incidents against strays remains unknown but animal welfare groups report constant complaints regarding animal cruelty. Animal activists mooted a request to design and built a modernize efficient yet low cost trap cage with a provision of technology which are normally ignored by many quarters; as a vehicle to educate the public on humane and compassionate ways to treat stray animals.

 

The design of the cage involves consists of 3 parts, which was electronics hardware, communication system and critically the structure hardware whereby to withstand the possible aggressiveness of the animal. The objective of this paper is to present and apply the techniques of the analytic hierarchy process (AHP) in the prioritization and selection of design criteria of the trap cage. The finding shows that out of 5 design criteria, quality criteria is the most important criteria in designing of a humane trap cage issue. This is followed by innovativeness, cost, safety and aesthetics factors.
Treatment of Coal Mine Acid Water Using Nf270 Membrane as Environmentally Friendly Technology
Authors: Kiswanto K. , Susanto H. , Sudarno S.
Published: October 2020

Ex-mining pond water is widely used for the daily needs of the people these days, such as bathing, washing, and even drinking. Over time, it turns out that coal mine acid water has polluted the environment. The use of membrane technology to produce water that meets drinking water quality standards by the Minister of Health Regulation No. 492 of 2010 can be a solution to this problem. The NF270 membrane is a membrane process between reverse osmosis and ultrafiltration, which has a lower flux and operating pressure below 0.2-1.53 Mpa compared to reverse osmosis. Membrane NF270 is used for the reclamation of wastewater, water purification and softening, seawater desalination, and others. Its high rejection of organic molecules with a molecular weight of 200-2000 Da ions and multivalent can remove suspended solids, natural organic matter, bacteria, viruses, salts, and divalent ions contained in water, including coal mine acid water. The purpose of treating acid mine drainage with the NF270 membrane is to remove COD, TSS, TDS, and Fe metals. The NF270 membrane was used in this study to treat the coal mine acid water of PT. Bukit Asam. The performance of the NF270 process was assessed from the effect of pressure (4, 5, and 6 bar) on the flux and rejection rate of each parameter in a single solution, mixed and aqueous coal mine acid solution. The optimum pressure of the NF270 membrane for all parameters was 6 bar. This optimum pressure was then used to compare the phenomenon of flux that occurred and the level of rejection produced in the original sample of coal mine acid water. In the original coal mine acid water, there was a significant decrease in flux due to fouling deposition on the membrane surface. This phenomenon of decreasing flux was caused by fouling and polarization concentration. The rejection rates produced for the parameters of COD, TSS, TDS, and Fe with NF270 membranes were 56.4-93.1%; 78.5-100%; 43-69.3%; 67-100% respectively. Treated coal mine acid water using NF270 membrane technology can be used as drinking water that meets the standards of the Indonesian Ministry of Health Regulation. Thus, NF270 membrane technology can be used to process coal mine acid water into environmentally friendly drinking water.
The Impact of Interactive Science Shows on Student’s Learning Achievement on Fire and Pressure Science Concept for 9th Grader in Brunei
Authors: Karim N. , Roslan R.
Published: October 2020

Informal science learning (ISL) has shown a considerable amount of recognition to the enrichment of science learning. The purpose of this study is to investigate one form of ISL that is on-stage shows also known as science shows to enhance students’ achievement on fire and pressure science concepts and to investigate whether science shows could engage students in science learning. Two science shows were conducted in this study with demonstration characteristics identified as CHAMP merged with the science content development framework for science shows practised by OGDC. In the attempt to identify whether the students learning achievement on fire and pressure science concept were enhanced, experimental design research consisting of a quantitative approach using pretest and posttest achievement tests were utilized. It is followed by BERI protocol to measure the behavioral engagement of students on science show and qualitative approach using structured interviews to elicit students’ insights on the shows. Pretest and posttest scores of the participating students were obtained and analyzed using the Wilcoxon Signed Ranked test. The test revealed a statistically significant increase in scores following participation in the pressure and fire shows, Z= -3.562, p <.001, with a large effect size (r = 0.611) and Z= -3.624, p <.001, with a large effect size (r = 0.622) respectively. Structured interview transcripts (transcribed verbatim) were obtained from six selected students that participated in the experiment whereby two themes were derived, namely; knowledge gained by students and delivery of science show. The statistical and qualitative findings from the study indicated promising evidence that science shows do support students’ achievement on fire and pressure concepts as well as engaging them in learning science.
Validating the S-STEM among Malaysian Pre-University Students
Authors: Noh A. M. , Khairani A. Z.
Published: October 2020

The purpose of this study is to validate the measure of student attitudes toward science, technology, engineering, and mathematics (S-STEM). This study used the cross-sectional design to employ translation and cultural adaptation as well as providing evidence of the reliability and validity of the S-STEM. The instrument was administered to 748 pre-university students in Penang, Malaysia. Data were analyzed using confirmatory factor analysis (CFA) with AMOS 19.0. Results support S-STEM as a three-factor multidimensional construct, namely attitude towards science, attitude towards technology/engineering, and attitude towards mathematics. All statistics such as factor loadings, average variance explained, construct reliability, evidence of discriminant validity, and goodnessof-fit indices were found to be at acceptable values. These positive results are significant because although the instrument has undergone numerous modifications, such as translation and others, the generalizability of the instrument is still preserved in pre-university Malaysian students. Counselors may administer the instrument to facilitate the choice of courses to enroll at university. The research may utilize the instrument to gather data in providing measures to improve students’ participation in learning STEM. The practical implications, as well as the methodological limitations of the present study, are discussed.
Pengarusutamaan Gender Krama Istri (Warga Perempuan) dalam Hukum Adat Bali
Authors: Adnyani Ni Ketut Sari , Purnamawati I Gusti Ayu
Published: October 2020

Penelitian ini bertujuan menganalisis bahwa hampir 30 persen  daerah di Provinsi Bali, seperti di Kabupaten Buleleng belum mencantumkan dalam awig-awid desa adat mengenai kedudukan dan status perempuan sebagai krama istri terhadap perempuan Bali yang mengalami perceraian dari perkawinan campuran. Merespon permasalahan tersebut, dalam melindungi hak perempuan dan kewajibannya sebagai krama desa melalui paruman desa adat dirancang sebuah kebijakan adat. Metode penelitian yang digunakan adalah penelitian yuridis empiris. Pendekatan perundang-undangan, dan pendekatan studi kasus. Perempuan dalam Hukum Adat Bali yang mengalami perceraian dari perkawinan campuran, belum mendapat perlindungan hukum dalam mulih deha dan mewidesa. Adopsi hak-hak perempuan mulih deha selaras dengan Keputusan MDP Nomor: 01/KEP/PSM-3/MDP Bali/X/2010 mengandung unsur responsif gender. Hasil penelitian menunjukkan Permasalahan terkait dengan jaminan perlindungan hukum negara terhadap warga negara yaitu perempuan Bali berkenaan akibat hukum perceraian dari perkawinan campuran. This study aims to analyze that almost 30 percent of regions in Bali Province, such as in the Buleleng Regency have not included in the awig-awid traditional villages regarding the position and status of women as manners of wives towards Balinese women who experience divorce from mixed marriages. Responding to these problems, in protecting the rights of women and their obligations as a village manners through traditional village paruman designed a customary policy. The research method used is empirical juridical research. The statute approach, and the case study approach. Women in Balinese Customary Law who experience divorce from mixed marriages, have not received legal protection in terms of deha and mendidea. Adoption of women’s rights is in harmony with MDP Decree Number: 01 / KEP / PSM-3 / MDP Bali / X / 2010 containing gender responsive elements. The results of the study show that the problem is related to the guarantee of state legal protection for citizens, namely Balinese women due to the divorce law from Mixed Marriage.
Relasi Kekuasaan Antar Presiden dan Wakil Presiden dalam Sistem Ketatanegaraan Republik Indonesia
Authors: Widodo Hananto , Prasetio Dicky Eko , Disantara Fradhana Putra
Published: October 2020

Relasi kekuasaan antar Presiden dan Wakil Presiden dalam sistem ketatanegaraan Indonesia selama ini dapat dikatakan selalu mengalami pasang surut. Persoalan ini disebabkan pengaturan kewenangan Wakil Presiden dalam UUD NRI Tahun 1945 tidak jelas. Penelitian ini bertujuan untuk menganalisis implikasi yuridis dari kekaburan kewenangan Wakil Presiden serta memberikan rekomendasi ke depan bagaimana seyogyanya kewenangan Presiden dan Wakil Presiden dapat diatur dan dilaksanakan secara proporsional. Penelitian ini merupakan penelitian hukum normatif dengan bahan hukum primer berupa UUD NRI 1945 dan bahan hukum sekunder berupa buku dan artikel jurnal berkaitan dengan kewenangan Wakil Presiden. Dari penelitian ini dapat disimpulkan bahwa pengoptimalan kewenangan Wakil Presiden dapat dilakukan dengan mengaturnya di dalam Undang-Undang Lembaga Kepresidenan yang diharapkan dapat membagi secara proporsional kewenangan Presiden dan Wakil Presiden. Oleh karena itu, diharapkan supaya pengaturan Kewenangan Wakil Presiden diatur secara pasti dalam aturan hukum supaya tidak tergantung pada praktik ketatanegaraan serta faktor non hukum, yaitu faktor politik.  Mengingat pentingnya fungsi Wakil Presiden dalam sistem ketatanegaraan Republik Indonesia maka alangkah baiknya, Undang-Undang Lembaga Kepresidenan yang mengatur mengenai pembagian wewenang antar Presiden dan Wakil Presiden segera dibentuk. The power relations between the President and Vice President in the Indonesian constitutional system so far can be agreed to always overcome the ups and downs. The 1945 Constitution of the Republic of Indonesia is unclear. This study aims to analyze the juridical implications of the obscurity of the Vice President’s authority and give approval to the front regarding the authority of the President and Vice President to be able to regulate and implement proportionality. This research is a normative legal research with primary legal material in the form of the 1945 Constitution of the Republic of Indonesia and secondary legal material containing books and journal articles about the authority of the president’s representative. From this research it can be concluded that optimizing the authority of the Vice President can be done with a license in the Law on Presidential Institutions which is expected to allocate proportional authority to the powers of the President and Vice President. Therefore, it is hoped that the Vice President’s licensing can be regulated in regulating legislation not dependent on state administration and non-legal factors, namely political factors. Considering the importance of the function of the Vice President in the constitutional system of the Republic of Indonesia, it would be nice, the Law on Presidential Institutions governing the distribution of powers between the President and the Vice President was immediately formed.
Integrin αvβ3-dependent thyroid hormone effects on tumour proliferation and vascularisation
Authors: Schmohl Kathrin A , Han Yang , Tutter Mariella , Schwenk Nathalie , Sarker Rim S J , Steiger Katja , Ziegler Sibylle I , Bartenstein Peter , Nelson Peter J , Spitzweg Christine
Published: October 2020

Thyroid hormones are emerging as critical regulators of tumour growth and progression. To assess the contribution of thyroid hormone signalling via integrin αvβ3, expressed on many tumour cells, endothelial cells, and stromal cells, to tumour growth, we compared the effects of thyroid hormones vs tetrac, a specific inhibitor of thyroid hormone action at integrin αvβ3, in two murine xenograft tumour models with and without integrin αvβ3 expression. Integrin αvβ3-positive human anaplastic thyroid cancer cells SW1736 and integrin αvβ3-negative human hepatocellular carcinoma cells HuH7 were injected into the flanks of nude mice. Tumour growth was monitored in euthyroid, hyperthyroid, hypothyroid, and euthyroid tetrac-treated mice. In SW1736 xenografts, hyperthyroidism led to a significantly increased tumour growth resulting in a decreased survival compared to euthyroid mice, while tumour growth was significantly reduced and, hence, survival prolonged in hypothyroid and tetrac-treated mice. Both proliferation and vascularisation, as determined by Ki67 and CD31 immunofluorescence staining, respectively, were significantly increased in tumours from hyperthyroid mice as compared to hypothyroid and tetrac-treated mice. No differences in tumour growth, survival, or Ki67 staining were observed between the different groups in integrin αvβ3-negative HuH7 xenografts. Vascularisation, however, was significantly decreased in hypothyroid and tetrac-treated mice compared to euthyroid and hyperthyroid mice. Apoptosis was not affected in either tumour model, nor were cell proliferation or apoptosis in vitro. Tumour growth regulation by thyroid hormones in αvβ3-positive tumours has important implications for cancer patients, especially those with thyroid dysfunctions and thyroid cancer patients treated with thyrotropin-suppressive L-thyroxine doses.
Undernutrition reduces kisspeptin and neurokinin B expression in castrated male sheep
Authors: Merkley Christina M , Renwick Allison N , Shuping Sydney L , Harlow KaLynn , Sommer Jeffrey R , Nestor Casey C
Published: October 2020

Undernutrition impairs reproductive success through suppression of gonadotropin-releasing hormone (GnRH), and subsequently luteinizing hormone (LH), secretion. Given that kisspeptin and neurokinin B (NKB) neurons in the arcuate nucleus (ARC) of the hypothalamus are thought to play key stimulatory roles in the generation of GnRH/LH pulses, we hypothesized that feed restriction would reduce the ARC mRNA abundance and protein expression of kisspeptin and NKB in young, male sheep. Fourteen wethers (castrated male sheep five months of age) were either fed to maintain (FM; n = 6) pre-study body weight or feed-restricted (FR; n = 8) to lose 20% of pre-study body weight over 13 weeks. Throughout the study, weekly blood samples were collected and assessed for LH concentration using RIA. At Week 13 of the experiment, animals were killed, heads were perfused with 4% paraformaldehyde, and brain tissue containing the hypothalamus was collected, sectioned, and processed for detection of mRNA (RNAscope) and protein (immunohistochemistry) for kisspeptin and NKB. Mean LH was significantly lower and LH inter-pulse interval was significantly higher in FR wethers compared to FM wethers at the end of the experiment (Week 13). RNAscope analysis revealed significantly fewer cells expressing mRNA for kisspeptin and NKB in FR wethers compared to FM controls, and immunohistochemical analysis revealed significantly fewer immunopositive kisspeptin and NKB cells in FR wethers compared to FM wethers. Taken together, this data supports the idea that long-term feed restriction regulates GnRH/LH secretion through central suppression of kisspeptin and NKB in male sheep.

Lay summary

While undernutrition is known to impair reproduction at the level of the brain, the components responsible for this in the brain remain to be fully understood. Using male sheep we examined the effect of undernutrition on two stimulatory molecules in the brain critical for reproduction: kisspeptin and neurokinin B. Feed restriction for several weeks resulted in decreased luteinizing hormone in the blood indicating reproductive function was suppressed. In addition, undernutrition also reduced both kisspeptin and neurokinin B levels within a region of the brain involved in reproduction, the hypothalamus. Given that they have stimulatory roles in reproduction, we believe that undernutrition acts in the brain to reduce kisspeptin and neurokinin B levels leading to the reduction in luteinizing hormone secretion. In summary, long-term undernutrition inhibits reproductive function in sheep through suppression of kisspeptin and neurokinin B within the brain.
Electric resistence hysteresis of platinum filament in chilled air/hydrogen mixtures
Authors: Каlіnchak V. V. , Chernenko O. S. , Fedorenko A. V.
Published: October 2020

Ignition of gaseous combustible mixtures on catalytically active hot solid surfaces has numerous applications in many industrial processes and is a complex process that involves close interaction between surface processes and transfer processes in the gas mixture. In this paper, stable and critical states catalytic oxidation of hydrogen impurities in air on a platinum filament are considered. It is shown that filament temperature and its resistance depending on the mixture temperature and hydrogen concentration are of the hysteresis features. Within this hysteresis region, it is possible to achieve the catalytic combustion mode of hydrogen as a result preheating the catalyst filament above a certain critical value. The dependence of the limiting hydrogen's concentration on catalyst filament's diameter, above which is observed in the cold gas mixture self-sustaining catalytic combustion without electric current.
Structural, morphological and optical studies of sol-gel engineered Sm3+ activated ZnO thin films for photocatalytic applications
Authors: Kiran T. , Ahmed H. M. Parveez , Begum Noor Shahina , Kannan Karthik , Radhika D.
Published: October 2020

Rare earth (RE) ions activated ZnO thin films were prepared via sol-gel route and the thin films be categorized by various techniques. X-ray diffraction (XRD) studies display the hexagonal wurtzite structure of the prepared thin films. Scherrer's formula was utilized to calculate the average crystallite size (25–40 nm) with different Sm3+ concentrations. The optical energy gap was calculated by Diffused Reflectance spectra (DRS). The Acid Red (AR) dye was degraded under ultraviolet (UV) light irradiation with ZnO: Sm3+(1-9 mol %) nanostructured thin films  and the highest photodegradation (95 %) was observed for 7 mol %  of  Sm3+ doped ZnO catalyst. All the obtained results suggest that prepared material could be a prominent material as photocatalyst.
Modeling of organic light emitting structures
Authors: Barylo G. I. , Holiyka R. L. , Helzhynskyi I. I. , Hotra Z. Yu. , Ivakh M. S. , Politanskyi R. L.
Published: October 2020

The paper has been shown the results of the study of the parameters of organic light-emitting structures based on the SPICE (Simulation Program with Integrated Circuit Emphasis) model studies. A SPICE model of diode structure has been developed, which is implemented in the form of a substitution scheme based on the basic components of the simulator. This model can be extended by introducing additional components of the substitution scheme, which provides higher accuracy in representing the structure specifics. Graphical results of researches of the model of OLED structure at the change of internal parameters have been presented. The obtained data well represent the parameters of real structures and are characterized by a fairly effective adaptation to the experimental data of specific samples.
Solubility of carbon, manganese and silicon in γ-iron of Fe-Mn-Si-C alloys
Authors: Filonenko N. Y. , Babachenko O. I. , Kononenko G. A. , Domina K. G.
Published: October 2020

The study was performed on alloys with a carbon content of 0,37-0,57 % (wt.), silicon 0,23-0,29 % (wt.), manganese 0,7-0,86 % (wt.), the rest– iron. To determine the phase composition of alloys used microstructural, microanalysis and X-ray analysis. In addition, the physical characteristics of the alloys studied in this paper were determined, such as alloy chemical dependence of extension and contraction ratio, impact toughness and hardness. The results obtained in this paper showed that the iron-based alloy with the content of carbon of 0.57 % (wt.), silicon of 0.28 % (wt.) and manganese of 0.86 % (wt.)) had the superior microstructure and physical properties. It was determined that after a number of crystallization and phase transformation the alloy phase structure includes two phases: a-iron and cement magnesium doping Fe2.7Mn0,3C..

For the first time using the method quasichemistry received an expression of the free energy of a γ-iron alloyed with silicon and magnesium, and determined the solubility limit of carbon, manganese and silicon. The maximum content in γ-iron can reach: carbon 6,8 % (at.), manganese – 67,5 % (at.), silicon – 2,3 % (at.).
Venta de Borondo (Daimiel, Ciudad Real). Actuaciones arqueológicas para la recuperación de un bien singular
Authors: Torres Mas Miguel , Cejudo Loro David , Angulo Bujanda Mª Isabel , Álvarez García Honorio
Published: October 2020

La Venta de Borondo (Daimiel, Ciudad Real) es uno de los últimos exponentes de una tipología arquitectónica representativa de la época bajomedieval-moderna, como lo fueron las ventas de llanura. En su conjunto, en el que destaca el torreón occidental, se pueden identificar las particularidades que atesoraron estas manifestaciones y que, entre otras consideraciones, pudieron servir de inspiración a Miguel de Cervantes para su recreación dentro de la celebérrima obra Don Quijote de la Mancha.
A pesar de su trascendencia, la ausencia de labores de mantenimiento en su interior ha causado el deterioro progresivo de sus estructuras, con riesgo de colapso en determinadas zonas. Por estas razones, desde el año 2017, se están emprendiendo diversas acciones con el objetivo de estudiar, preservar y difundir este conjunto patrimonial tan emblemático. A través de este artículo tratamos de dar a conocer las singularidades de este inmueble, así como describir las actuaciones que se están llevando a cabo en torno al mismo y que tratan de fomentar un legado excepcional.