bluuebunny/crossref_metadata_2025 huggingface dataset:
FACTOR ANALYSIS ON LAYANAN SYARIAH LINKAJA USAGE DECISION
Authors: Azizah Nisrina Nur , Mas'ud Fuad
Published: June 2022

In the midst of intense e-wallet competition and seeing the large Muslim population, PT Finarya innovated to issue Layanan Syariah LinkAja which makes it unique as the first and only sharia e-wallet in Indonesia. This study aims to determine the effect of perceived ease of use, perceived usefulness, trust and riba knowledge towards Layanan Syariah LinkAja usage decision. The data collection method was done through questionnaire. The population in this study is Layanan Syariah LinkAja Muslim users in Indonesia. The exact population is unknown, so researcher took a sample of 100 respondents with purposive sampling approach. The analysis technique used is multiple linear regression analysis which is calculated using SPSS 26 program. The result of the analysis showed that perceived usefulness, trust and riba knowledge variables have a positive and significant effect on usage decision, while perceived ease of use variable has no effect on usage decision. Simultaneously, the results of the independent variable which are perceived ease of use, perceived usefulness, trust and riba knowledge have an effect on usage decision.
Formulación de caso en Psicología Jurídica. Perspectiva penal
Authors: Jiménez-Molina José Raúl , Jiménez-Ardila Luis Orlando , Devia-Vega Elías , López-Cantero Ever José
Published: June 2022

The formulation of cases in legal psychology aims to establish, in a systematic and organised way, information on the psychological and behavioural aspects of people and groups who have judicial implications. This information, which is related to the mental state, personality, personal history, group interactions, relational dynamics, motivation, etc., is used to support the decisions of legal operators. Recently, case formulation has become a key method for the development of processes of systematisation, organisation, formulation and explanatory analysis of information within the psychological practice, especially for those who carry out their activities from the applied field of clinical psychology, as it is directly related to interventional procedures. Nevertheless, it is important to consider that the professional activity of a psychologist is not exclusively limited to the area of health, therefore their roles in other fields, such as that of legal-criminal psychology, also requires an orderly and schematic form which allows for more objective and ideographic interventions to be carried out. In accordance with the aforementioned, this investigation proposes a case formulation model for legal-criminal psychology based on the practical experience and on the theoretical and scientific knowledge of legal psychologists in the administration of the Colombian criminal justice system.
Taking stock: A meta-analysis of the effects of foreign language enjoyment
Authors: Botes Elouise , Dewaele Jean-Marc , Greiff Samuel
Published: June 2022

Studies examining the positive emotion of foreign language enjoyment (FLE) have recently increased exponentially, as researchers are applying the tenets of positive psychology in applied linguistics. It is therefore an appropriate time to take stock of the current literature and conduct a preliminary meta-analysis. The relationships between FLE and four variables, namely, foreign language anxiety (FLA), willingness to communicate (WTC), academic achievement, and self-perceived achievement were examined. A total of k = 96 effect sizes were analyzed with an overall sample size of N = 28,166 in random-effects models with correlation coefficients. There was a moderate negative correlation between FLE and FLA. In turn, moderate positive correlations were found between FLE and WTC, FLE and academic achievement, and FLE and self-perceived achievement. These positive associations confirm the value of FLE in FL learning and further affirm the need for researchers to examine positive psychology constructs in the foreign language classroom.
Investigating individual differences with qualitative research methods: Results of a meta-analysis of leading applied linguistics journals
Authors: Albert Ágnes , Csizér Kata
Published: June 2022

The aim of the present article is to provide a systematic review of qualitative studies in the leading journals of our field focusing on their distributional properties in the various journals as well as topic choice and selected quality control issues. In order to achieve this aim, we carried out a systematic review of research articles published in leading journals in our field, namely, Applied Linguistics, Language Learning, Language Teaching Research, Studies in Second Language Acquisition and Modern Language Journal between 2016 and 2020. Our sample contains 93 articles in which researchers employed qualitative research methods or mixed methods including a qualitative component. Our main results indicate that there is great variation among journals in terms of the number of qualitative studies. As for topic considerations, some traditional individual difference variables seem to have a dominant role, with cognitive processes involved in language acquisition gaining some ground as well. Concerning quality control issues, there could be room for improvement with regard to reporting the quality control measures, including the tools employed in the studies. Based on our results, we can conclude that a more systematic understanding of acceptable processes in the field of applied linguistics could increase not only the number of qualitative articles published but also their topical importance.
On some variational problems involving capacity, torsional rigidity, perimeter and measure
Authors: van den Berg Michiel , Malchiodi Andrea
Published: June 2022

We investigate the existence of a maximiser among open, bounded, convex sets in

R
d

\mathbb{R}^{d}

,

d
≥
3

d\geq 3

, for the product of torsional rigidity and Newtonian capacity (or logarithmic capacity if

d
=
2

d=2

), with constraints involving Lebesgue measure or a combination of Lebesgue measure and perimeter.
Copper(ii) complexes supported by modified azo-based ligands: Nucleic acid binding and molecular docking studies
Authors: Tripathi Mamta , Asatkar Ashish Kumar , Antony Stalin , Dash Mrinal Kanti , Roymahapatra Gourisankar , Pande Rama , Sarkar Avijit , Aldakheel Fahad M. , Binshaya Abdulkarim S. , Alharthi Nahed S. , Alaofi Ahmed L. , Alqahtani Mohammed S. , Syed Rabbani
Published: June 2022

Two new copper(ii) complexes [CuL1] (1) and [CuL2] (2) derived from azo-based ligands 2-hydroxy-5-p-tolylazo-benzaldehyde (HL1) and 1-(2-hydroxy-5-p-tolylazo-phenyl)-ethan-one (HL2) were synthesized. These two ligands and their metal complexes were characterized by elemental analysis, nuclear magnetic resonance (1H and 13C), infrared, and UV/Vis spectroscopic techniques. Spectroscopy and other theoretical studies reveal the geometry of copper complexes, and their binding affinity towards nucleic acids are major groove binding.
Assessment and optimization of photovoltaic systems at the University Ibn Tofail according to the new law on renewable energy in Morocco using HOMER Pro
Authors: El Mokhi Chakib , Choukai Oumaima , Hachimi Hanaa , Ait Errouhi Ahmed
Published: June 2022

The current study aims to investigate and optimize the photovoltaic systems currently in operation at the University of Ibn Tofail in Kenitra, Morocco. The University has started already since 2017 to integrate photovoltaic systems in the form of carports with the objective to reduce the invoices for electricity supplied from the utility grid by at least around 40%. Until then, the University avoided selling the energy surplus to the local electricity provider due to complicated bureaucratic regulations. However, due to the new law on renewable energy adopted by the Moroccan government in November 2021, it will be possible for private households and public service buildings to sell the entire excess of energy produced by renewable energy systems instead of only 20% of the surplus according to the previous law 13-09. For this purpose, this research project seeks to verify whether an expansion of the available photovoltaic installations and the sale of the energy surplus is worthwhile or not. This research work has been done with the optimization software HOMER Pro and presents the obtained optimized results and proposals of two new scenarios in comparison to already existing photovoltaic arrays.
Potential role of melatonin in prevention and treatment of lung cancer
Authors: Ngai Zi Ni , Chok Kian Chung , Ng Khuen Yen , Koh Rhun Yian , Chye Soi Moi
Published: June 2022

Lung cancer is the second most common cancer and the most lethal cancer worldwide. Melatonin, an indoleamine produced in the pineal gland, shows anticancer effects on a variety of cancers, especially lung cancer. Herein, we clarify the pathophysiology of lung cancer, the association of circadian rhythm with lung, and the relationship between shift work and the incidence of lung cancer. Special focus is placed on the role of melatonin receptors in lung cancer, the relationship between inflammation and lung cancer, control of cell proliferation, apoptosis, autophagy, and immunomodulation in lung cancer by melatonin. A review of the drug synergy of melatonin with other anticancer drugs suggests its usefulness in combination therapy. In summary, the information compiled may serve as a comprehensive reference for the various mechanisms of action of melatonin against lung cancer, as a guide for the design of future experimental research and for advancing melatonin as a therapeutic agent for lung cancer.
A nők attitűdje a tradicionális és a femvertising reklámokban megjelenő női sztereotípiákkal szemben
Authors: Török Anna , Malota Erzsébet , Mucsi Attila
Published: June 2022

A TANULMÁNY CÉLJA

A jelen tanulmány a feminizmus három korszakához kapcsolódóan a reklámokban megjelenő női ábrázolásmódokat és sztereotípiákat, illetve a nők ezzel kapcsolatos attitűdjét vizsgálja. A különböző időszakokban a női ábrázolásmódok a reklámokban folyamatosan változtak, így a cikk a legrégebbi, feminizmus előtti tradicionális korszak sztereotípiáit hasonlítja össze a feminizmus legújabb, 4. hullámában megtalálható femvertising típusú reklámmal. A cikk primer kutatás keretében arra a kérdésre keresi a választ, hogy hogyan alakul a nők attitűdje a tradicionális, illetve a femvertising reklámban látott női sztereotípiák kapcsán?

ALKALMAZOTT MÓDSZERTAN

A feltáró kutatás 10 félig strukturált mélyinterjú elemzésével keresi a választ a kutatási kérdésre. A kutatás célcsoportját magyarországi, 30-50 év közötti családos, dolgozó nők alkották. A válaszokat az NVivo 12 Plus szoftver segítségével elemeztük, kvalitatív tartalomelemzés keretein belül.

LEGFONTOSABB EREDMÉNYEK

Kettősség tükröződött vissza az interjúalanyok női ábrázolásmóddal kapcsolatos attitűdjében mind a tradicionális, mind a femvertising reklámok kapcsán. A magyar nők sok esetben teljesen természetesnek tartják, hogy a nőket háziasszonyként és gondozóként jelenítik meg a tradicionális reklámokban (Hofmeister Tóth - Malota 1999), ennek ellenére egyre inkább tudatában vannak a nemek közötti egyenlőség hiányával. Bár a femvertising a sokszínűséget képviseli és sok esetben inspiráló jelleggel hat a nőkre (Åkestam et al. 2017, Kapoor - Munjal 2019), az interjúalanyok még sem tudták teljes mértékben elfogadni a nőket férfias sztereotípiákkal bemutató reklámot.

GYAKORLATI JAVASLATOK

A kutatás eredményei arra bíztatják a marketingszakemembereket, hogy a reklámokban bemutatott nőket változatos módon ábrázolják hirdetéseikben, hiszen a nők hagyományos sztereotípiákra adott reakciói egyre inkább elutasító jellegűek. A tanulmány jövőbeli kutatási irányvonalakat is kijelöl a téma mélyebb megértése kapcsán, melynek középpontjában a femvertising márkával szembeni attitűdre, vagy jövőbeli vásárlási szándékra kifejtett pozitív hatásának mérése szerepel.  

Kulcsszavak: feminizmus, femvertising, reklám, sztereotípiák

Köszönetnyilvánítás: Jelen publikáció az Európai Unió, Magyarország és az Európai Szociális Alap társfinanszírozása által biztosított forrásból az EFOP-3.6.3-VEKOP-16-2017-00007 azonosítószámú „Tehetségből fiatal kutató- A kutatói életpályát támogató tevékenységek a felsőoktatásban” című projekt keretében jött létre.
A helyi termékek turizmusban betöltött szerepe
Authors: Gonda Tibor , Angler Kinga , Csóka László
Published: June 2022

A TANULMÁNY CÉLJA

A helyi termékek reneszánszukat élik Magyarországon. A helyi gazdaságoknak köszönhetően számos gazdasági, környezeti, társadalmi és kulturális előnyhöz juthatnak nemcsak a folyamat közvetlen actorai, hanem az érintett közösségek, és a települések is. A figyelem középpontjába került produktumok egyre többször tűnnek fel a turizmusban, gyakran turisztikai attrakciókat építve rájuk, ezzel a jelenlegi trendeket követő, egyedi és autentikus vonzerőhöz juttatva a fogadóterületet. Jelen kutatás célja, hogy feltárja a turisták helyi termékek iránti igényeit, a lokális élelmiszerek térségi turisztikai kínálatban betöltött szerepét.

ALKALMAZOTT MÓDSZERTAN

Céljaink eléréséhez az online kérdőíves megkérdezés eszközét alkalmaztuk. A Tolna és Baranya megyében végzett kérdőíves felmérésünk a helyitermék-előállítókra irányult. A keletkezett adatok egy részét egyszerű leíró statisztikai módszertannal értékeltük, majd a helyi termékeket előállítók csoportosítása érdekében klaszteranalízist végeztünk.

LEGFONTOSABB EREDMÉNYEK

Egyértelművé vált, hogy a helyi termékeknek nemcsak a mindennapokban, hanem az utazások során is létjogosultságuk van. A helyi termékek fogyasztói körében a külföldi és belföldi turisták egyre jelentősebb fogyasztói szegmensként jelentkeznek a fogadóhelyen, általuk is keresettebbek, kedveltebbek a lokális élelmiszerek.

GYAKORLATI JAVASLATOK

Kutatásunk a helyitermék-előállítók véleménye alapján segíti a helyi termékek turisztikai jelenttőségének az alátámasztását és ösztönzően hathat a turisztikai szolgáltatókra, hogy nagyobb mértékben illesszék be kínálatukba a helyi termékeket.
"OxyElite Pro" Induced Fulminant Hepatotoxicity
Authors: Shanab Ahmed Abu , Iqbal Masood , Merriman Raphael
Published: June 2022

Around 35% of adults or more are overweight according to a report by Global Health Observatory (GHO). In the absence of proven medical therapeutics, the use of dietary supplements to effect weight loss has increased and under much less scrutiny by regulatory agencies like the U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA). For many, these approaches represent apparent alternatives to failed attempts at weight loss with the use of more conventional approaches [1]. Hepatotoxicity from supplements is a growing problem while the internet facilitates obtaining these agents across national regulatory boundaries. OxyElite Pro capsules are sold as a dietary supplement for weight loss and ‘’super thermogenic’’ agent (Figure1A & B). According to the manufacture, the proposed mechanism of action is ‘fat burning via the contained ingredients which are: Rauwolfia Canescens, Thyroxine (T4) and Triiodothyronine (T3), Bauhinia Purpurea Trypsin Inhibitor (BPLTI), Bacopa monnieri, Geranium which contains a powerful constituent known as 1,3-Dimethylamylamine (DMAA), Cirsium Oligophyllum, and Caffeine’. A more recent formula of OxyElite Pro released in late 2012 contained a new ingredient, Aegeline. We describe a case of acute liver failure in an otherwise young healthy female after taking the newer OxyElite Pro formula to lose weight. Keywords: OxyElite Pro, Hepatotoxicity, acute liver failure, fulminant, herbal induced liver injury
A Messenger Ribonucleic Acid: A Platform for Protein Synthesis
Authors: Okolo Raphael Chinweike , Ufelle Silas A , Ogbuabor Alphonsus Ogbonna , U. Achukwu Peter
Published: June 2022

The messenger Ribonucleic Acid (mRNA) has come to play as potential regulators of gene expression that is translates in the ribosome by the RNA polymerase and yields amino acid and protein. This plays a tremendous role in the protein synthesis and is not just mere template in translation but also contains essential regulatory elements as protein supplement, for therapy vaccine production and generation of pluripotent stem cells. This review highlights the new approaches and insights in the role of mRNA as a template in protein synthesis, functional approach, clinical uses and in vivo usage which is still a challenge underway. Keywords: MRNA; Translation; Protein synthesis; DNA; Gene regulation.
A Comprehensive Meta-Analysis of COVID-19 in Latin America
Authors: Ashktorab Hassan , Pizuorno Antonio , Fierro Nora A , Villagrana Edgar D Copado , Solis Maria E Herrera , Cardenas Graciela , Alvarez Daniela Zavala , Oskrochi Gholamreza , Adeleye Folake , Dalivand Maryam Mehdipour , Laiyemo Adeyinka O , Aduli Farshad , Sherif Zaki A , Brim Hassan
Published: June 2022

Background: Latin America has become the epicenter of the coronavirus disease 2019 (COVID-19) pandemic. We aim to perform a systematic comparative review of the clinical characteristics that are associated with this disease in Latin American countries. Methods: We conducted a systematic review of published articles, journal and/or epidemiological reports of confirmed COVID-19 cases in Latin America. Data were obtained either through publicly available information from Ministries of Health, published journal reports and/or unpublished datasets. We analyzed data from SARS-CoV-2 positive patients evaluated at healthcare centers and hospitals of 8 countries including Brazil, Peru, Mexico, Argentina, Colombia, Venezuela, Ecuador, and Bolivia, between March 1st and July 30th, 2020. These countries consist of a total population that exceeds 519 million. Demographics, comorbidities, and clinical symptoms were collected. Statistical descriptive analysis and correlation analyses of symptoms, comorbidities and mortality were performed. Results: A total of 728,282 COVID-19 patients were included in this study. Of these, 52.6% were female. The average age was 48.4 years. Peru had the oldest cohort with 56.8 years and highest rate of females (56.8%) while Chile had the youngest cohort (39 years old). Venezuela had the highest male prevalence (56.7%). Most common symptoms were cough with 60.1% (Bolivia had the highest rate 78%), fatigue/tiredness with 52.0%, sore throat with 50.3%, and fever with 44.2%. Bolivian patients had fever as the top symptom (83.3%). GI symptoms included diarrhea which was highest in Mexico with 22.9%. Hypertension was among the top (12.1%) comorbidities, followed by diabetes with 8.3% and obesity at 4.5%. In multivariate analyses, the leading and significant comorbidities were hypertension (r = 0.83, p = 0.02), diabetes (r = 0.91, p = 0.01), and obesity (r = 0.86, p = 0.03). Mortality was highest in Mexico (16.6%) and lowest in Venezuela (0.9%) among the analyzed cohorts. Conclusion: Overall, COVID-19 patients in Latin America display cough, fatigue, and fever as main symptoms. Up to 53% of patients with COVID-19 have GI manifestations. Different clinical symptoms were associated with COVID-19 in Latin American countries. Metabolic syndrome components were the main comorbidities associated with poor outcome. Country-specific management and prevention plans are needed and can be established from this meta-analysis. Keywords: Coronavirus Disease-19; Pandemic; Gastrointestinal Manifestation; Diarrhea Abbreviations: ACE2: Angiotensin Receptor 2; CI: Confidence Interval; COVID-19: Coronavirus Disease-19; GI: Gastrointestinal; RT-PCR: Real-time Polymerase Chain Reaction; SARS-CoV-2: Severe Acute Respiratory Syndrome Coronavirus-2; TMPRSS: Transmembrane Serine Protease
Gastrointestinal Manifestations, Clinical Characteristics and Outcomes of COVID-19 in Adult and Pediatric Patients
Authors: Russo Tiziano , Pizuorno Antonio , Oskrochi Gholamreza , Latella Giovanni , Massironi Sara , Schettino Mario , Aghemo Alessio , Pugliese Nicola , Brim Hassan , Ashktorab Hassan
Published: June 2022

Background: Italy was the first country in Europe to report a SARS-CoV-2 case. Since then, the country has suffered a large number of COVID-19 infections both in adults and children. This disease has been shown to lead to different outcomes in these two groups, which oftenpresent varying symptoms and comorbidities. Aim: Therefore, we aimed to evaluate the symptoms, comorbidities and laboratory values in adults and children. Methods: We present the characteristics of 1,324 adults and 563 pediatric COVID-19 Italian patients. The data was retrieved from studies published in Italy and found via PubMed and Google Scholar. Results: The virus appeared to affect adults more than children and men more than women, and to result in more severe outcomes in patients with abnormal laboratory values and a higher number of comorbidities. Adults are at higher risk for complications and death, and they usually present with fever, respiratory symptoms, cough, fatigue, diarrhea, myalgia, and/or loss of taste, smell, or appetite. Children usually have a milder disease progression and usually present with fever, cough, rhinorrhea, pharyngitis, sore throat, pneumonia, GI symptoms (diarrhea, vomiting, abdominal pain), fatigue, and dyspnea. Conclusion: Our findings support early reports that showed that SARS-CoV-2 is associated with more common asymptomatic cases and milder clinical outcome in children than in adults. Acute respiratory distress syndrome and Multisystem inflammatory syndrome in children (systemic vasculitis) are the most severe disease progressions for adults and children, respectively. Keywords: Coronavirus Disease-19; Pandemic; Gastrointestinal Manifestation; Italy; Adults; Pediatrics Abbreviations: COVID-19: Coronavirus Disease-19; GI: Gastrointestinal; RT-PCR: Real-time Polymerase Chain Reaction; SARS-CoV-2: Severe Acute Respiratory Syndrome Coronavirus-2
Neuronal Correlates of Hyperalgesia and Somatic Signs of Heroin Withdrawal in Male and Female Mice
Authors: Alvarez-Bagnarol Yocasta , Marchette Renata C. N. , Francis Chase , Morales Marisela , Vendruscolo Leandro F.
Published: June 2022

Opioid withdrawal involves the manifestation of motivational and somatic symptoms. However, the brain structures that are involved in the expression of different opioid withdrawal signs remain unclear. We induced opioid dependence by repeatedly injecting escalating heroin doses in male and female C57BL/6J mice. We assessed hyperalgesia during spontaneous heroin withdrawal and somatic signs of withdrawal that was precipitated by the preferential μ-opioid receptor antagonist naloxone. Heroin-treated mice exhibited significantly higher hyperalgesia and somatic signs than saline-treated mice. Following behavioral assessment, we measured regional changes in brain activity by automated the counting of c-Fos expression (a marker of cellular activity). Using Principal Component Analysis, we determined the association between behavior (hyperalgesia and somatic signs of withdrawal) and c-Fos expression in different brain regions. Hyperalgesia was associated with c-Fos expression in the lateral hypothalamus, central nucleus of the amygdala, ventral tegmental area, parabrachial nucleus, dorsal raphe (DR), and locus coeruleus (LC). Somatic withdrawal was associated with c-Fos expression in the paraventricular nucleus of the thalamus, lateral habenula, DR, and LC. Thus, hyperalgesia and somatic withdrawal signs were each associated with c-Fos expression in unique sets of brain areas. The expression of c-Fos in the DR and LC was associated with both hyperalgesia and somatic withdrawal. Understanding common neurobiological mechanisms of acute and protracted opioid withdrawal may help identify new targets for treating this salient aspect of opioid use disorder.
Chronic wound care in psychiatric nursing practice. A case study
Authors: Wojda Piotr
Published: June 2022

Individuals suffering from mental illnesses are characterized by poorer health and live shorter than the general population. Health problems, improper lifestyle, non-compliance with therapeutic recommendations, and the use of neuroleptics contribute to the occurrence of chronic wounds. The most common types of chronic wounds observed in the mentally ill include pressure ulcers, leg ulcers and the diabetic foot. The aim of the study was to present the specificity of the care provided for a patient with a chronic wound complicated by mental illness in the view of the diagnosis of nursing and caring problems. The study involved the use of a case study method. In planning patient care, data collected through interviews, direct observation, and documentation analysis were used, whereas the severity of symptoms was assessed with the VAS scale and Broset Violence Checklist. The ulceration was evaluated by means of the LUMT scale. Subsequently, the nursing issues were identified and interventions were implemented in line with the Evidence Based Practice. Following the implementation of topical and systemic therapy, the condition of the wounds improved by means of fibrin clearing, removal of dead epidermis from the wound edges, and gradual development of granulation tissue. The size of the wound on the left lower leg was reduced by about 20%, and on the right lower leg by about 30%. The improvement in the body hydration, nutritional status, biochemical parameters was achieved in the course of the systemic treatment and a proper diet. Not only did the patient’s mental condition improve, but also the willingness to cooperate with the staff. This allowed for the transfer to an open ward, where the wound treatment was continued. Another accomplishment was the positive impact on the patient’s awareness regarding wound care self-management. However, since the patient was discharged on his own request, complete wound healing was not achieved during hospitalisation. It is unknown whether he has undertaken further treatment at the indicated wound treatment clinics. Treatment of chronic wounds in patients with mental illnesses is a difficult process, since during the period of exacerbation of the disease, they tend to neglect their healthy needs. In the care of chronic wounds in patients with mental illnesses, treatment should be gradually introduced, adapting it to the patient’s needs, lifestyle and acceptance of the proposed treatment methods. Interventions against their will and expectations results in the loss of trust in the staff, non-compliance and even aggression. The multidimensional impact on the patient with a chronic wound increases the probability of complete healing of the wound. Care for a non-healing wound in patients with mental disorders should be comprehensive and include the treatment of both the wounds and mental disorders. Therefore, focusing solely on the wound is not enough, as only holistic measures will optimize wound care, leading to its healing.
sWOM and Online Shopping within a Disease Menace: The Case of Vietnam
Authors: Le Xuan Cu , Chu Ba Quyet
Published: June 2022

Although electronic word-of-mouth via social networking sites (or sWOM) greatly induced online shopping, its importance in shopping decisions during the coronavirus disease (COVID-19) pandemic has not been holistically considered. Based on the necessity of sWOM, uses and gratifications theory (UGT), and health belief theory (HBT), this study frames a consumer shopping tendency model toward sWOM in the context of the pandemic. A web-based survey was designed to collect data from 403 respondents who are inclined to patronize e-stores during the pandemic. Next, the measurement model is examined using a two-step method of structural equation modeling. The findings specify that sWOM is an influential communication mode for online shopping in the pandemic. sWOM is of primary importance to information quality. Moreover, utilitarian value, social value, perceived threat, and self-efficacy toward shopping tendency are significantly motivated by sWOM. Lastly, information quality, utilitarian value, social value, and perceived threat are major predictors of shopping tendency during Covid-19. Finally, theoretical and practical implications are discussed.
The Relationship Between Trading Volume and Market Returns: A VAR/Granger Causality Testing Approach in the Context of Saudi Arabia
Authors: Alhussayen Hanan
Published: June 2022

This paper investigates the relationship between trading volume and market returns in the Saudi stock market. Daily data of number of shares traded and TASI returns from 2010 till mid-2021 are used for the same. The Granger causality test reveals a unidirectional relationship from returns to volume. This is supported by the findings of the VAR test and the Impulse Response Function (IRF) test. Trading volume does not carry informational content and cannot predict prices. Returns do impact volume, but the effect is not steady. The results do not provide support for the Sequential Information Arrival Hypothesis (SIAH). The asymmetric information model and the difference of opinion model can provide an explanation for the obtained results.
Evaluation the needs of population from normative method: Romania 1989-2018
Authors: Mihailescu Adina
Published: June 2022

This article presents the normative method, applied in Romania, in order to validate the population’s consumption by covering to a minimum the essential goods and services necessary for the individual and for his family, at home and in society. Further, the study presents the dynamics of the main incomes of the population in the time period 1990-2018, as well as their influence on consumption. The study concludes what are the needs of the Romanian population and to what extent they were met or not, during the period of time studied. In the period of time 1990-2018 the incomes of different families with children and pensioners could not keep up with the price increases on products and services on the market. This led to the deterioration of time in the quality of life of these families. The incomes or expenditures of the population provide a clear and concrete situation regarding the quality of life of the population and therefore contribute to actions, through socioeconomic policies oriented towards the benefit of the members of these societies.
Experimental and numerical analysis of the stress state of honeycombs made by additive technologies
Authors:   Yuzhnoye State Design Office, Derevianko I. I. , Uspensky B. V. ,   A. Pidgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine, Avramov K. V. ,   A. Pidgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine, Salenko O. F. ,   National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
Published: June 2022

This paper proposes an approach to the experiment-and-calculation analysis of the tension of honeycombs made by FDM additive technologies. The approach includes experimental tension analysis. Tension tests of honeycombs were conducted on a certified TiraTest 2300 universal tension testing machine. To do this, sets of honeycomb samples were prepared. The method of honeycomb manufacturing by FDM additive technologies is described. The vertices of a honeycomb cell row are fixed in the vise-type clamps of the tension testing machine. The experimental analysis is accompanied by a numerical finite-element simulation of tension tests. To simulate honeycomb tension, nine mechanical characteristics of the material in material axes must be known. These nine parameters are considered in the paper. A direct finite-element simulation of a honeycomb with account for the deformation of all its cells was performed. To provide the uniformity of sample deformation in a physical experiment, the sample is loaded by setting the displacement of one of its ends to a constant value. In doing so, the other end is clamped. As follows from the experimental analysis, before failure the honeycomb cell end displacements are comparable with the honeycomb cell thickness. Because of this, the geometrically nonlinear deformation of the honeycomb cells in tension is accounted for in the calculations, and a nonlinear problem is solved using ANSYS. The direct simulation of honeycombs and the analysis of their homogenized model give different results. In the direct simulation of honeycombs, they are considered as thin-walled beams working in bending. In this case, the geometrical nonlinearity contributes significantly to the structural deformation. For plate tension (homogenized model), the contribution of the geometrical nonlinearity is very small, Because of this, the stress-strain response is close to linear.
Identifikasi dan Analisis Filogentik Kerang Kima (Genus Tridacna) dari Pulau Kur Menggunakan DNA Barcoding
Authors: Triandiza Teddy , Kusnadi Agus , Madduppa Hawis , Zamani Neviaty P , Hernawan Udhi E , Pesillette Rosmi N , Yamko Abdul Kadir , Anggraini Nurlita P , Hulwani Fildzah Z , Hardono Ichtineza H , Utami Risnita Tri
Published: June 2022

AbstrakPeran penting kerang Kima secara ekologis sebagai salah satu spesies kunci dalam ekosistem terumbu karang menyebabkan biota laut ini mengalami tekanan antropogenik di sebagian besar wilayah di Indo-Pasifik, termasuk Indonesia. Penelitian ini bertujuan untuk mengidentifikasi spesies Kima genus Tridacna asal Pulau Kur menggunakan markea gen COI dan menganalisis hubungan filogenetiknya. Sampel jaringan Kima diekstrak menggunakan kit ekstraksi komersial. Primer universal (LCO1490; HCO2198) dan primer spesifik Kima (LCO: 5’-GGG TGA TAA TTC GAA CAG AA-3’; RCO: 5’-TAG TTA AAG CCC CAG CTA AA-3’) digunakan untuk mengamplifikasi DNA target. Analisis data dilakukan terhadap 26 sekuen Kima asal Pulau Kur dengan panjang fragmen 479 bp menggunakan software MEGA6 meliputi analisis jarak genetik dan pohon filogenetik. Hasil analisis homologi menggunakan BLASTn mendapatkan empat jenis Kima, yaitu Tridacna maxima, T. crocea, T. noae, dan T. squamosa dengan similaritas 99–100%. Hasil penelitian menunjukkan bahwa jarak genetik dalam spesies sangat rendah berkisar 0,0000–0,0103 sedangkan jarak genetik antar spesies berkisar antara 0,0112–0,1729. Hasil konstruksi pohon filogenetik kerang Kima menunjukkan adanya dua klad utama yang kohesif dan jelas terpisah, yaitu kelompok Tridacna yang monofiletik dan Hippopus hippopus. Berdasarkan hasil penelitian, teknik DNA Barcoding sangat efektif untuk identifikasi dan mengkonfirmasi fenomena cryptic spesies.Abstract The role of the giant clam as the key and ecologically important species in coral reef ecosystem has led them to experience anthropogenic pressure in the most of Indo-pacific region including Indonesia. This research aimed to identify the species of giant clam Tridacna from Kur Island, Southeast Maluku by using COI gene marker and to analyze their phylogenetic relationship. The tissue sample of giant clam was extracted with a commercial extraction kit. Universal primer (LCO1490; HCO2198) and specific primer for giant clam (LCO: 5’-GGG TGA TAA TTC GAA CAG AA-3’; RCO: 5’-TAG TT AAG CCC CAG CTA AA-3’) was used to amplify DNA target. Twenty-six sequences from Kur Island with 479 bp fragment length were analyzed by using MEGA6 software. Homological analysis on BLASTn found four species i.e Tridacna maxima, T. crocea, T. noae, and T. squamosa with 99–100% similarity. The result also showed that genetic distance value intraspecies was very low ranging from 0.000 to 0.0105, while genetic distance inter-species ranged from 0.0112 to 0.1729. Reconstruction of phylogenetic tree of giant clam revealed two main group that cohesive and clearly separated i.e Tridacna group which monophyletic and Hippopus hippopuxs. Based on the result, the DNA barcoding technique was effective for identification and confirmation of the occurrence of cryptic species phenomenon.
Aktivitas Antibakteri Kapang Endofit dari Tangkai Daun Tanaman Kayu Jawa (Lannea coromandelica)
Authors: Bahri Saiful , Amelia Puteri , Ningrum Rahayu Kusuma , Manalu Rosario T , Hamada Firdaus Ramadhan
Published: June 2022

AbstrakKapang endofit telah banyak ditemukan pada berbagai jaringan tanaman. Pemanfaatan kapang endofit dapat menjadi solusi untuk mengurangi eksploitasi tumbuhan yang berpotensi sebagai sumber senyawa bioaktif. Penelitian ini bertujuan untuk mengetahui keberadaan kapang endofit pada tangkai daun tanaman Kayu Jawa Lannea coromandelica dan potensinya sebagai agen antibakteri. Isolasi dilakukan dari tangkai tanaman Kayu Jawa dan isolat yang berhasil diperoleh dikarakterisasi secara makroskopis dan mikroskopis. Uji penapisan pada semua isolat dengan bakteri Staphylococcus aureus dan Pseudomonas aeruginosa untuk mendapatkan isolat yang berpotensi sebagai agen antibakteri. Ekstraksi isolat terpilih dilakukan dengan pelarut metanol (MeOH) dan pelarut etil asetat (EtOAc). Pengujian antibakteri menggunakan tiga bakteri uji, yaitu Staphylococcus aureus, Pseudomonas aeruginosa, dan Salmonella typhi. Hasil penelitian terdapat enam isolat yang berada di jaringan tangkai daun tanaman Kayu Jawa, yaitu PLC.1.A, PLC.1.B, PLC.2, PLC.3, PLC.4, dan PLC.5. Hasil uji penapisan menunjukkan isolat PLC.4 yang menjadi kandidat antibakteri pada penelitian ini. Fraksi MeOH memiliki aktivitas antibakteri lebih tinggi dibanding fraksi EtOAc pada semua bakteri uji dan kontrol positif (kloramfenikol) pada bakteri P. aeruginosa. Ekstrak MeOH isolat PLC.4 memiliki aktivitas antibakteri yang berpotensi sebagai sumber antibiotik baru.Abstract Endophytic fungi have been found in various plant tissues. The utilization of endophytic fungi can be a solution to reduce the exploitation of plants that are potential sources of bioactive compounds. This study aims to determine the presence of endophytic fungi on the petiole tissue of Kayu Jawa plants (Lannea coromandelica) and their potential as an antibacterial agent. Isolation and characterization of isolates was conducted macro- and microscopically. Screening test is carried out on the isolates against Staphylococcus aureus and Pseudomonas aeruginosa bacteria to obtain isolate that has the potential as an antibacterial agent. The extraction of selected isolates was carried out using methanol (MeOH) and ethyl acetate (EtOAc) solvents. Antibacterial examination used three test bacteria: Staphylococcus aureus, Pseudomonas aeruginosa, Salmonella typhi. The results showed that six isolates were found in the petiole tissue of L. coromandelica, namely, PLC.1.A, PLC.1.B, PLC.2, PLC.3, PLC.4, and PLC.5. Screening result showed that PLC.4 isolate was a candidate for antibacterial agent in this study. The MeOH fraction had higher antibacterial activity than the EtOAc fraction in all tested bacteria and from positive control (chloramphenicol) on P. aeruginosa bacteria. In conclusion, the MeOH extract of PLC.4 isolate has antibacterial activity potential as a source of new antibiotics.
Keanekaragaman Spesies dan Status Konservasi Ikan Hiu dan Ikan Pari di Tempat Pelelangan Ikan (TPI) Pemalang
Authors: Sukmaningrum Sri , Suryaningsih Suhestri , Habibah Aulidia Nurul
Published: June 2022

AbstrakEksploitasi ikan hiu dan pari di Indonesia tidak bisa dihindari, karena terus meningkatnya permintaan dari konsumen. Oleh karena itu perlu adanya upaya pengelolaan ikan hiu dan pari agar konservasinya tetap terjaga. Penelitian ini bertujuan untuk mengetahui keanekaragaman spesies dan status konservasi ikan hiu dan pari yang didaratkan di TPI Pemalang. Penelitian dilakukan dengan menggunakan metode survei. Sampel diambil dengan teknik purposive random sampling. Data yang diperoleh dianalisis secara deskriptif. Hasil penelitian menunjukkan ikan hiu dan pari yang didaratkan sebanyak 796 individu terdiri dari 170 ekor ikan hiu dan 626 ekor ikan pari. Ikan hiu yang didaratkan tergolong ke dalam tiga ordo, lima famili, dan enam spesies, sedangkan ikan pari tergolong ke dalam satu ordo, dua famili, dan enam spesies. Ikan hiu dan pari yang paling banyak didaratkan adalah Rhizoprionodon oligolinx 152 individu dan Dasyatis zugei 501 individu. Keanekaragaman jenis ikan hiu dan pari pada lokasi penelitian tergolong sedang dengan H’= 1,124. Ikan hiu dan pari yang diamati selama penelitian memiliki status konservasi dengan kategori critically endangered dua spesies, vulnerable tiga spesies, near threatened empat spesies, least concern satu spesies, dan data deficient dua spesies.Abstract The exploitation of sharks and rays in Indonesia is inevitable, because of the increasing demand from consumers. Therefore, there is a need for sharks and rays management so that their conservation is maintained. This study aims to determine the species diversity and conservation status of sharks and rays landed at TPI Pemalang. The research was conducted using a survey method. Samples were taken by the purposive random sampling technique. The data obtained were analyzed descriptively. The results showed that 796 sharks and stingrays were landed, consisting of 170 sharks and 626 rays. The landed sharks are classified into 3 orders, 5 families and 6 species, while the stingrays are classified into 1 order, 2 families and 6 species. The most landed sharks and rays were 152 individuals of Rhizoprionodon oligolinx and 501 individuals of Dasyatis zugei. The diversity of sharks and stingrays at the research location is classified as moderate, with H '= 1.124. The sharks and rays observed during the study had a conservation status: two species of critically endangered, three species of vulnerable, four species of near threatened, one species of least concerned, and two species of deficient data.
Keberadaan Ruellia simplex (Acanthaceae) Ternaturalisasi di Pulau Jawa
Authors: Irsyam Arifin Surya Dwipa , Mountara Arieh , Dewi Asih Perwita , Hariri Muhammad Rifqi , Peniwidiyanti Peniwidiyanti , Irwanto Rina Ratnasih , Anshori Zakaria Al
Published: June 2022

AbstrakInformasi mengenai suku Acanthaceae di Jawa telah dianggap selesai ketika buku Flora of Java diterbitkan. Berdasarkan buku tersebut, marga Ruellia di Jawa hanya terdiri dari lima jenis, yaitu R. brevifolia, R. costata, R. elegans, R. Repens, dan R. tuberosa. Sebagian besar dari anggota Ruellia merupakan jenis asing yang ternaturalisasi, sehingga Ruellia eksotik lainnya yang belum terekam kemungkinan masih ada. Penelitian ini dilakukan untuk menyediakan informasi terkini marga Ruellia di Pulau Jawa dan akan menjadi bagian dari penulisan Alien Flora of Java. Penelitian dilakukan di Jawa Barat (Bandung, Bogor, Depok, Cianjur, Sukabumi, Sumedang, dan Tasikmalaya), Jawa Tengah (Tegal), Yogyakarta, dan Jawa Timur (Malang) pada bulan September hingga November 2020. Pengamatan spesimen Ruellia dilakukan di Herbarium Bogoriense. Penelitian ini berhasil mengungkap satu jenis tambahan spesies dari marga Ruellia, yaitu R. simplex C.Wright. Jenis tersebut dibudidayakan sebagai tanaman hias, namun populasi meliarnya telah ditemukan di Cimenyan (Kabupaten Bandung), Rancaekek (Kabupaten Bandung), Pasir Mulya (Kota Bogor), dan Leuwiliang (Kabupaten Bogor). Jenis ini diduga telah ternaturalisasi dan memiliki kemungkinan untuk tumbuh mendominasi hingga mengancam flora lokal. Secara morfologi, R. simplex dicirikan oleh perawakan yang tegak, helaian daun melanset hingga memita, dan bunga yang berwarna ungu, jambon pucat, atau putih. Kunci determinasi untuk marga Ruellia di Jawa, deskripsi jenis, foto, dan diskusi singkat disajikan dalam makalah ini.Abstract Based on the Flora of Java, the genus Ruellia in the island only consists of five species, namely R. brevifolia, R. costata, R. elegans, R. repens and R. tuberosa. Most of the species are naturalized alien flora. Thus, other exotic Ruellia that have not been recorded may still exist. Our study was conducted to provide updated information on the genus Ruellia in Java and be part of the Alien Flora of Java writing. Field study was conducted in West Java (Bandung, Bogor, Depok, Cianjur, Sukabumi, Sumedang, and Tasikmalaya), Central Java (Tegal), Jogjakarta, and East Java (Malang) from September to November 2020. Further specimen examinations were carried out in Herbarium Bogoriense and Herbarium Bandungense. This research revealed a newly recorded alien species found in Java, namely R. simplex C. Wright. The species is commonly cultivated as an ornamental plant, and it also has been naturalized in the island. Its wild populations were found in Cimenyan (Bandung Regency), Rancaekek (Bandung Regency), Pasir Mulya (Bogor City), and Leuwiliang (Bogor Regency). Ruellia simplex is characterized by its erect habit, lanceolate to linear leaves, and corolla in purple, pale pink, or white. The updated key to the Ruellia of Java, species description, photographs, and a brief discussion is presented in this paper.
Asian Pacific Society of Cardiology Consensus Statements on the Diagnosis and Management of Obstructive Sleep Apnoea in Patients with Cardiovascular Disease
Authors: Tan Jack Wei Chieh , Leow Leong Chai , Wong Serene , Khoo See Meng , Kasai Takatoshi , Kojodjojo Pipin , Sy Duong-Quy , Lee Chuen Peng , Chirakalwasan Naricha , Li Hsueh-Yu , Koh Natalie , Tan Adeline , Ong Thun How , Aung Aye Thandar , Toh Song Tar , Lee Chi-Hang
Published: June 2022

Obstructive sleep apnoea (OSA) is strongly associated with cardiovascular disease (CVD). However, evidence supporting this association in the Asian population is scarce. Given the differences in the epidemiology of CVD and cardiovascular risk factors, as well as differences in the availability of healthcare resources between Asian and Western countries, an Asian Pacific Society of Cardiology (APSC) working group developed consensus recommendations on the management of OSA in patients with CVD in the Asia-Pacific region. The APSC expert panel reviewed and appraised the available evidence using the Grading of Recommendations Assessment, Development, and Evaluation system. Consensus recommendations were developed and put to an online vote. Consensus was reached when 80% of votes for a given recommendation were in support of ‘agree’ or ‘neutral.’ The resulting statements provide guidance on the assessment and treatment of OSA in patients with CVD in the Asia-Pacific region. The APSC hopes for these recommendations to pave the way for screening, early diagnosis and treatment of OSA in the Asia-Pacific region.
A Clinical Trial of Venous Stent Placement for Post-thrombotic Syndrome: Current Status and Pandemic-related Changes
Authors: Vedantham Suresh , Parpia Sameer , Kahn Susan R
Published: June 2022

Patients with post-thrombotic syndrome (PTS) and iliac vein obstruction have lower extremity symptoms, activity limitation and impairment of health-related quality of life. Preliminary studies suggest that iliac vein stent placement, which eliminates venous outflow obstruction, may reduce the clinical severity of PTS. However, stent placement is associated with patient risk, inconvenience and cost. Therefore, the Chronic Venous Thrombosis – Relief with Adjunctive Catheter-directed Therapy (C-TRACT) trial was launched to rigorously assess the risk–benefit ratio of stent placement for the treatment of moderate or severe PTS. In the trial, patients in both treatment groups receive a high quality of multi-modality PTS care that includes medical, compressive, and ulcer therapies. Due to the COVID-19 pandemic, the trial protocol and practices were modified to enhance the study feasibility while preserving its ability to answer its primary question. This review summarises the current status of the trial and the potential impact of the pandemic-related adaptations to future venous clinical practice and research.