bluuebunny/crossref_metadata_2025 huggingface dataset:
Plant Community Traits Respond to Grazing Exclusion Duration in Alpine Meadow and Alpine Steppe on the Tibetan Plateau
Authors: Zhan Tianyu , Zhao Wenwu , Feng Siyuan , Hua Ting
Published: July 2022

Grazing exclusion has been a primary ecological restoration practice since the implement of “Returning Grazing Land to Grassland” program in China. However, the debates on the effectiveness of grazing exclusion have kept for decades. To date, there has been still a poor understand of vegetation restoration with grazing exclusion duration in alpine meadows and alpine steppes, limiting the sustainable management of grasslands on the Tibetan Plateau. We collected data from previous studies and field surveys and conducted a meta-analysis to explore vegetation restoration with grazing exclusion durations in alpine meadows and alpine steppes. Our results showed that aboveground biomass significantly increased with short-term grazing exclusion (1–4 years) in alpine meadows, while medium-term grazing exclusion (5–8 years) in alpine steppes (P < 0.05). By contrast, belowground biomass significantly increased with medium-term grazing exclusion in alpine meadows, while short-term grazing exclusion in alpine steppes (P < 0.05). Long-term grazing exclusion significantly increased belowground biomass in both alpine meadows and alpine steppes. medium-tern, and long-term grazing exclusion (> 8 years) significantly increased species richness in alpine meadows (P < 0.05). Only long-term GE significantly increased Shannon-Wiener index in plant communities of alpine steppes. The efficiency of vegetation restoration in terms of productivity and diversity gradually decreased with increasing grazing exclusion duration. Precipitation significantly positively affected plant productivity restoration, suggesting that precipitation may be an important factor driving the differential responses of vegetation to grazing exclusion duration in alpine meadows and alpine steppes. Considering the effectiveness and efficiency of grazing exclusion for vegetation restoration, medium-term grazing exclusion are recommended for alpine meadows and alpine steppes.
Mental Health in Athletes: Where Are the Treatment Studies?
Authors: Ekelund Rebecka , Holmström Stefan , Stenling Andreas
Published: July 2022

In recent years, athletes’ mental health has gained interest among researchers, sport practitioners, and the media. However, the field of sport psychology lacks empirical evidence on the effectiveness of psychotherapeutic interventions for mental health problems and disorders in athletes. Thus far, intervention research in sport psychology has mainly focused on performance enhancement using between-subject designs and healthy athlete samples. In the current paper, we highlight three interrelated key issues in relation to treating mental health problems and disorders in athletes. (i) How are mental health and mental health problems and disorders defined in the sport psychology literature? (ii) How are prevalence rates of mental health problems and disorders in athletes determined? (iii) What is known about psychotherapeutic interventions for mental health problems and disorders in athletes? We conclude that the reliance on different definitions and assessments of mental health problems and disorders contributes to heterogeneous prevalence rates. In turn, this limits our understanding of the extent of mental health problems and disorders in athletes. Furthermore, knowledge of the effectiveness of psychotherapeutic interventions for athletes with mental health problems and disorders is scarce. Future research should include athletes with established mental health problems and disorders in intervention studies. We also propose an increased use of N-of-1 trials to enhance the knowledge of effective psychotherapeutic interventions in this population.
Further Validation of a Dutch Translation of the Sussex Oxford Compassion for the Self Scale in Samples of Crisis Line Volunteers, Military Personnel and Nursing Students
Authors: de Krijger Eva , Willems Renate , ten Klooster Peter , Bakker Ellen , Miedema Harald , Drossaert Constance , Bohlmeijer Ernst
Published: July 2022

Self-compassion is considered an important, transdiagnostic factor for mental health. The Sussex Oxford Compassion for the Self Scale (SOCS-S) is a recently developed comprehensive measure of self-compassion, that was found to have promising psychometric properties among health care staff and university students in the initial validation study. The aim of this study is the further psychometric evaluation of a Dutch translation of the SOCS-S in different populations and settings. The SOCS-S was administered in three different Dutch samples [crisis line volunteers (n= 560), military personnel (n= 244) and nursing students (n= 255)]. The results confirm the five-factor structure of the SOCS-S and its reliability and criterion and convergent validity across the samples. Measurement invariance was demonstrated for gender in two samples and for age in all three samples, but not across professions. Finally, the SOCS-S was found to explain additional variance in mental health in comparison to a widely used self-compassion measure (SCS-SF).
Impact of Dark Triad on Anxiety Disorder: Parallel Mediation Analysis During Pandemic
Authors: Shengbo Liu , Fiaz Muhammad , Mughal Yasir H. , Wisetsri Worakamol , Ullah Irfan , Ren Diandian , Kiran Alina , Kumar Kesari Kavindra
Published: July 2022

The current study aimed to investigate the mediating role of loneliness, ASMR, on the relationship between narcissism, Machiavellianism, and psychopathy and anxiety disorder. The population of the study was professionals working in public and private sector organizations. Non-probability snowball technique was used. Data was collected from 512 professionals. A total of 653 questionnaires were distributed and 512 were used in the analysis yielding a response rate of 78.4%. PLS-SEM was used to analyze the data. Measurement and structural models were developed to test the reliability, and validity of the scales as well as hypotheses. Findings of the measurement model revealed that scales were reliable and valid while results of the structural model revealed that narcissism, psychopathy, COVID loneliness, and ASMR have a significant direct impact on anxiety disorder but Machiavellianism does not have a significant effect on anxiety disorder. In addition, COVID loneliness and ASMR mediated between narcissism and psychopathy but do not significantly mediate between Machiavellianism and anxiety disorder. The current study has extended the body of knowledge by bridging the two theories theory of attachment and cognitive dissonance theory. The current study has provided the primary evidence that COVID loneliness increases anxiety while ASMR (audio-visual) tingling sensations help to reduce anxiety disorder.
Impact of Organizational Brand-Building Strategies on Organizational Brand Equity: A Moderating Role of Brand-Oriented Leadership
Authors: Wei Zhang
Published: July 2022

In this era of competition, branding is an essential marketing tool for organizations to compete in today's dynamic markets. Organizations should realize the importance of employee-based brand equity from the perspectives of customer branding and financial performance. Employee-based brand equity plays a crucial role in building organizational brand equity. This study conceptualized a model that helps the practitioners to build employee-based brand equity and organizational brand equity. This study examines the role of organizational brand-building strategies and brand-oriented leadership in promoting employee-based brand equity and organizational brand equity. This study collected data from the employees of various beverage companies in China. This study analyzed data through partial least square structural equation modeling using Smart PLS 3. This study found a positive direct association between organizational brand-building strategies and employee-based brand equity. However, according to the results, no direct association was found between organizational brand-building strategies and organizational brand equity. This study also confirms that organizational brand-building strategies indirectly promote organizational brand equity through employee-based brand equity. Moreover, this study demonstrates that brand-oriented leadership directly influences employee-based brand equity and organizational brand equity but negatively moderates the relationship between organizational brand-building strategies and employee-based brand equity. No moderation was found in the relationship between organizational brand-building strategies and organizational brand equity. Finally, the practical and theoretical implications of this study are discussed.
Impact of Online Advertisement on Customer Satisfaction With the Mediating Effect of Brand Knowledge
Authors: Salameh Anas A. , Ijaz Mahrukh , Omar Abdullah Bin , Zia ul Haq Hafiz Muhammad
Published: July 2022

The purpose of this article is to explain how online advertising affects customer satisfaction through the mediation of brand knowledge. The sample size of this survey is based on 100 participants in the Multan region. This study collects data by conducting various unstructured interviews. In this study, we used a qualitative data acquisition technique. The results show that online advertising does not have a significant impact on customer satisfaction. However, when brand knowledge is included as a parameter, the correlation between online advertising and customer satisfaction increases. Online advertising is a new advertising tool used by most organizations. This manuscript helps practitioners choose better tools for online promotion and uses a variety of recognition techniques to improve their brand knowledge. It has been known through this study, that building customer confidence in product quality is a very effective approach in front of business owners, as brand reputation enhances customer satisfaction. This study is unique in that previous studies considered elements of brand knowledge as parameters and ignored to find a direct relationship between online advertising and customer satisfaction. This study highlights key points that will help emerging researchers critically analyze such aspects in future studies.
A Study on the Correlation Between Undergraduate Students’ Exercise Motivation, Exercise Self-Efficacy, and Exercise Behaviour Under the COVID-19 Epidemic Environment
Authors: Wang Fang , Gao Shiying , Chen Baoxia , Liu Chenyu , Wu Zhusheng , Zhou Yan , Sun Yan
Published: July 2022

The outbreak of COVID-19 epidemic has influenced human beings from various aspects including physical exercise behaviours. This study aims to explore the influence of the COVID-19 epidemic on exercise self-efficacy and exercise behaviour, as well as the intermediary effects of exercise motivation. A sample of 1,115 undergraduate students was investigated using the physical exercise behaviour scale, exercise self-efficacy scale, and exercise motivation scale, combined with the COVID-19 epidemic environment as an influencing factor. SPSS was used for statistical analysis and AMOS for the prediction model building. Logical analysis was undertaken to sort out and analyse the data. The structural equation model reveals that exercise self-efficacy has a positive effect on exercise motivation and exercise behaviour. Meanwhile, the COVID-19 epidemic environment negatively influences exercise behaviour through the intermediary role of exercise self-efficacy and exercise motivation. Moreover, the intermediary effect of exercise self-efficacy is greater than that of exercise self-efficacy and exercise motivation. This study provides both theoretical implications and practical guidelines for society and undergraduate students to improve their exercise behaviour during epidemic.
Impact of Depression on Patients With Hemophilia: A Retrospective Case-Control Research
Authors: Jiménez-Cebrián Ana María , Palomo-López Patricia , Becerro-de-Bengoa Vallejo Ricardo , Losa-Iglesias Marta Elena , Navarro-Flores Emmanuel , San-Antolín Marta , Calvo-Lobo César , López-López Daniel
Published: July 2022

Background

Hemophilia is an inherited recessive hemorrhagic disorder of the X-linked type, suffered by the male sex. Adults with hemophilia are coping with numerous diagnostics, associated comorbidities, pain, and difficult gait by arthropathy in ankles and feet. Physical pains contribute to depression in patients with hemophilia.

Purpose

The study aimed to assess the impact of depression in adult patient with hemophilia and to compare it with healthy matched-paired controls. Methods: The sample consisted of 100 participants (median age 42.50 ± 30). Patients with hemophilia were recruited from Spanish Hemophiliac Associations (n = 50) and healthy subjects (n = 50) from a Clinic Podiatry Practices (University of Malaga, Spain).

Results

Results and categories of the Spanish-translated version of the Beck Depression Inventory (BDI) were gathered. A clear statistically significant difference (p < 0.001) was presented in the variation of the BDI scores between both groups. Patients with hemophilia presented worse results with a BDI = 7.50 ± 11.25 points compared to healthy subjects with BDI = 2.50 ± 5 points. In the BDI categories, statistically significant differences (p = 0.004) were found in greater BDI categories in the Hemophilia group compared with healthy subjects. Moderate and severe depression categories were only shown in patients with hemophilia.

Conclusions

Greater depression scores and range status were observed in patients with hemophilia compared to non-patients with hemophilia. Patients with hemophilia are at increased risk of depressiveness.
Sudden Cardiac Death in Schizophrenia During Hospitalization: An Autopsy-Based Study
Authors: Chen Yuanyuan , Zhang Fu , Yan Yanan , Wang Shiquan , Zhang Le , Yan Fengping
Published: July 2022

Schizophrenia is a severe mental disorder that is often comorbid with heart dysfunction and even sudden cardiac death (SCD). Clinical studies of SCD in schizophrenia have been largely reported, while there are limited autopsy studies that directly showed whole-scale information of such events. In this study, we present nine autopsy-based SCD cases in schizophrenia patients who died suddenly during hospitalization. Their medical records before and during hospitalization, and postmortem autopsy findings were summarized. These decedents had an average duration of schizophrenia for 6.83 ± 3.75 years with a male/female ratio of 4:5. They were all on intermittent antipsychotics medication before hospitalization and died within 15 days after hospitalization. Seven of the nine cases (77.8%) died of organic heart diseases such as severe coronary artery atherosclerosis (n = 4), myocarditis (n = 1), cardiomyopathy (n = 1), and pulmonary thromboembolism (n = 1). Two cases remained unexplained after systemic autopsy and toxicological examinations. Postmortem autopsy identified hepatic steatosis (n = 6) and respiratory inflammation (n = 3) as the most common associate extra-cardiac lesions. Our data provided autopsy-based data of SCD cases in schizophrenia and highlighted an intensive care of such patients during hospitalization.
Diffusion of Technology in the Teaching of Neuroanatomy in Times of Pandemic: A Medical and Academic Perspective on Learning
Authors: Brito Herika Karla Negri , Veiga Silva Ana Cristina , Lima Luís Felipe Gonçalves de , Alencar Neto Joaquim Fechine de , Ferreira Neto Otávio da Cunha , Lemos Nilson Batista , Dias Artêmio José Araruna , Diniz Andrey Maia Silva , Sanchez Luana Moury Fernandes , Silva Melissa Helena Rodrigues , Alves Neto Luís Bandeira , Lira Arthur Oliveira , Marques Luís Felipe Ferreira , Rocha Maria Luísa , Bem Junior Luiz Severo , Valença Marcelo Moraes , Azevedo Filho Hildo Rocha Cirne de , Pinho Débora Maria Brito de
Published: July 2022

The Covid-19 pandemic has caused major changes in many sectors of society worldwide. The issue of medical education stands out since it had to adapt to the rules of social isolation, ensuing discussions about the computerization of teaching methodology, particularly in neuroanatomy. In particular, the latter showed satisfactory adaptability to new technologies and highly promising learning results. During this review, we aim to evaluate the current state of neuroanatomy teaching and evaluate the possibilities of incorporating technology into teaching–learning of human anatomy in a post-pandemic world.
The Application of Platelet-Rich Plasma for Patients Following Total Joint Replacement: A Meta-Analysis of Randomized Controlled Trials and Systematic Review
Authors: Shu Hongxin , Huang Zhenjun , Bai Xinyan , Xia Zhiyu , Wang Nanye , Fu Xiaoling , Cheng Xigao , Zhou Bin
Published: July 2022

Background

The clinical efficacy of platelet-rich plasma (PRP) in the treatment of total joint replacement (TJR) remains inconclusive. In this paper, systematic review and meta-analysis was adopted to assess the efficacy of using PRP for the treatment of TJR.

Methods

A comprehensive search of Medline, Embase, and Cochrane library databases for randomized controlled trial (RCT) articles recording data of PRP for TJR was conducted from inception to February 2022. Outcomes concerned were pain, range of motion (ROM), WOMAC score, length of hospital stay (LOS), hemoglobin (Hb) drop, total blood loss, wound healing rate, and wound infection. The methodological quality of the included RCTs was evaluated by using the Cochrane Risk of Bias Tool 2.0 (RoB 2.0). The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) was utilized to assess the level of evidence for the outcomes. Subgroup analysis was conducted according to the type of TJR.

Results

Ten RCTs were included in the meta-analysis. In the TKA subgroup, the available data demonstrated that there were significant differences in the outcomes of pain and Hb drop, while it was the opposite of ROM, WOMAC score, LOS, total blood loss, wound healing rate, and wound infection. In the THA subgroup, no significant differences could be seen between two groups in the outcomes of LOS and wound infection. However, the PRP group gained a higher wound healing rate in the THA subgroup.

Conclusion

The application of PRP did not reduce blood loss but improved the wound healing rate. However, more prospective and multicenter studies are warranted to confirm these results.
Anatomy of Subpancreatic Transverse Colon Vessel and Its Clinical Significance: An Observational Study
Authors: Liao Jiankun , Qin Haiquan , Wei Li , Huang Zigao , Meng Linghou , Wang Wentao , Mo Xianwei
Published: July 2022

Purpose

To observe and count the probability of presence and the anatomy of the vessel arising via the inferior margin of the pancreas and traveling within the transverse mesocolon, and analyze its clinical significance.

Methods

Patients who underwent radical operation for transverse colon cancer or descending colon cancer from January 2020 to November 2021 and a nonspecific cadaver were included in this study. We observed and recorded intraoperatively for the probability of presence and the anatomy of the vessel arising via the inferior margin of the pancreas and traveling within the transverse mesocolon. And its property was determined by tissue slice.

Results

A total of 84 patients were included, of which, the vessel was observed in 72 (85.7%) patients, and its property was confirmed by tissue slice of one patient after surgery. The vessel was also observed in a nonspecific cadaver. Originating from transverse pancreatic artery, often one, occasionally two, rarely three vessels arose via the inferior margin of pancreas and supplied the left transverse colon. Artery and vein parallel ran, and it was difficult to separate them due to their small diameter, but the vessels may thicken under certain conditions for increasing blood supply.

Conclusion

The vessel, which is not yet reported and named in the literature, can be called the subpancreatic transverse colon vessel, which has a high probability of presence in humans and may be of great significance to human physiological anatomy, surgery, and oncology, and deserves recognition and attention from surgeons.
Global Research on Cognitive Frailty: A Bibliometric and Visual Analysis of Papers Published during 2013–2021
Authors: Hui Zhaozhao , Wang Xiaoqin , Zhou Ying , Li Yajing , Ren Xiaohan , Wang Mingxu
Published: July 2022

This study analyzed the current status, hotspots, and emerging trends of global research on cognitive frailty, in order to provide new research ideas for researchers. Articles and reviews related to cognitive frailty, published from 2013 to 2021, were retrieved from the Web of Science Core Collection (WoSCC) database on 26 November 2021. CiteSpace 5.8.R3 was employed for data analyses. A total of 2077 publications were included. There has been a rapid growth of publications on cognitive frailty research since 2016. The United States, Italy, England, and Australia have been the leading research centers of cognitive frailty; however, China has also recently focused on this topic. The National Center for Geriatrics and Gerontology, and Shimada H. were found to be the most prolific institution and author, respectively. Co-citation analysis identified 16 clusters, of which the largest was cognitive frailty. The keywords which occurred most frequently were “older adult”, followed by “cognitive impairment”, “frailty”, “risk”, “dementia”, “prevalence”, “mortality”, “health”, and “Alzheimer’s disease”. Burst keyword detection revealed a rising interest in cognitive frailty models. By analyzing these publications from recent years, this study provides a comprehensive analysis of cognitive frailty research.
Enhancing Electrochemical Performance of Co(OH)2 Anode Materials by Introducing Graphene for Next-Generation Li-ion Batteries
Authors: Kim Hyunwoo , Kim Dong In , Yoon Won-Sub
Published: July 2022

To satisfy the growing demand for high-performance batteries, diverse novel anode materials with high specific capacities have been developed to replace commercial graphite. Among them, cobalt hydroxides have received considerable attention as promising anode materials for lithium-ion batteries as they exhibit a high reversible capacity owing to the additional reaction of LiOH, followed by conversion reaction. In this study, we introduced graphene in the fabrication of Co(OH)2-based anode materials to further improve electrochemical performance. The resultant Co(OH)2/graphene composite exhibited a larger reversible capacity of ~1090 mAh g−1, compared with ~705 mAh g−1 for bare Co(OH)2. Synchrotron-based analyses were conducted to explore the beneficial effects of graphene on the composite material. The experimental results demonstrate that introducing graphene into Co(OH)2 facilitates both the conversion and reaction of the LiOH phase and provides additional lithium storage sites. In addition to insights into how the electrochemical performance of composite materials can be improved, this study also provides an effective strategy for designing composite materials.
Implementasi algoritma genetika dalam mengestimasi kepadatan populasi jackrabbit dan coyote
Authors: Savitri Dian , Hidajati Ninik Wahju , Panigoro Hasan S.
Published: July 2022

This article studies about the parameter estimation using genetic algorithm for a Lotka-Volterra prey-predator model. The secondary data consist of the density of jackrabbit as prey and coyote as predator in Southwest Presscott–Arizona are used. As results, the Mean Absolute Percentage Error (MAPE) are computed to compare the results of parameter estimation and the real data. We have shown that MAPE for jackrabbit and coyote respectively given by 7.75424% and 7.95283%. This results show that the parameter estimation with genetic algorithm using Lotka-Volterra model is passably. Furthermore, some numerical simulations are portrayed to show each population density for the next 100 years.
As imagens da febre amarela e gripe espanhola: biopolítica, figuração e aparição
Authors: Lins Marcela Barbosa , Santos Caio Dayrell , Marques Ângela Cristina Salgueiro
Published: July 2022

A palavra epidemia se relaciona ao prefixo grego epi (sobre/acima) e demos (povo), referindo-se, portanto, a algo tido como acima ou que incide sobre as populações: manifestações contagiosas que ocorrem de modo coletivo. Como a própria etimologia sugere, surtos de doenças são indissociáveis dos povos que afligem, servindo para se pensar tanto sua sujeição ao poder quanto as condições de possibilidade de seu aparecimento. A partir da análise de imagens de arquivo de duas das principais crises sanitárias ocorridas durante o Império e Primeira República - a febre amarela e a gripe espanhola - discorremos sobre o conceito de biopolítica, destacando suas nuances dentro de um contexto do Sul Global e, argumentamos que, mesmo frente ao sofrimento provocado, fotografias ainda nos oferecem mecanismos de nomear injustiças e se opor a enquadramentos higienistas.
Stelnykovych S., Maksymov O. THE NAZI POLICY OF WORKFORCES MASS RELOCATION TO THE SOUTH OF THE REICH COMMISSARIAT «UKRAINE» IN 1942
Authors: Stelnykovych Sergiy , Maksymov Oleksandr
Published: July 2022

This paper aims to consider the Nazi policy of internal workforces mass relocation to the south of the Reich Commissariat «Ukraine» in 1942. The methodology of the study incorporates general scientific and special historical methods alongside with the fundamental principles of historical research: historicism, scientificity, objectivity, and systematicity. The principles of historicism and scientificity have contributed to the complex representation of the history of the workforces relocation to the south of the Reich Commissariat "Ukraine" in all its complexity and variety, in interconnection and interrelation with the events of that period. The principle of objectivity has facilitated the analysis of the discussed issue considering the objective historical regularities based on a comprehensive analysis of the existing specialized literature and sources. The principle of systematicity has allowed to obtain a holistic picture of the Nazi policy of the workforces mass relocation to the south of the Reich Commissariat «Ukraine». The scientific novelty of the paper is conditioned by the fact that it is the first research discussing the Nazi policy of internal workforces mass relocation to the south of the Reich Commissariat «Ukraine» for using them in agriculture in 1942 on the basis of a comprehensive range of historical sources. As the result, the authors conclude that the workforces mass relocation to the south of the Reich Commissariat «Ukraine» in 1942 was initiated by the Nazi policy. They were used in agriculture there. Meanwhile, the occupational government began excessively sending the local people to work in Germany since spring 1942, which, in fact, jeopardized the campaign to relocate workforces to the south. As a result, the recruitment geography and their social composition were expanded. Consequently, the Nazi policy of sending the local people to the south of the Reich Commissariat «Ukraine» in 1942 was not fully implemented. And this, in its turn, led to the total existing workforces exploitation.
Effect of Soaking in Chicken Eggshell Solution on Tooth Enamel Hardness
Authors: Yurisya Mila D. , Purbaningrum Diah A. , Hermawati Donna , Fortuna Gloria
Published: July 2022

Abstract: Eggshell is one of the natural wastes which if not treated properly can cause environ-mental pollution. Broiler eggshells consist mostly of CaCO3 (calcium carbonate) that can be synthesized into CaO (calcium oxide) then be processed into Ca (calcium). Calcium has a function to fill the density of bones and teeth that affects their strength and hardness. This study aimed to determine the effect of soaking in broiler chicken eggshell solution on the hardness of tooth enamel. This was an experimental laboratory study with a posttest only control group design. Samples were 24 maxillary first premolar obtained from dental clinics, public health centers, and hospitals in Semarang, Indonesia. Samples were divided into four groups: control group and treatment groups 1, 2, and 3 (duration of soaking in eggshell solution for 2, 7, and 14 days. respectively). The one way ANOVA test resulted in a p-value of 0.000 which meant that there were significant differences in the four groups. The post hoc test showed a p-value of <0.05, which meant that there was a significant difference between the control group (artificial saliva) and the treatment groups of 2.7 and 14 days. In conclusion, chicken eggshell solution has an effect on increasing the hardness of tooth enamel.Keywords: tooth enamel; hardness of tooth enamel; chicken eggshell  Abstrak: Cangkang telur merupakan salah satu limbah alam yang apabila tidak diolah dengan baik dapat  menyebabkan pencemaran lingkungan. Komposisi cangkang telur ayam ras sebagian besar terdiri dari CaCO3 (kalsium karbonat) yang dapat disintesis menjadi CaO (kalsium oksida) dan selanjutnya diolah menjadi Ca (kalsium). Kalsium memiliki fungsi untuk mengisi kepadatan tulang dan gigi yang memengaruhi kekuatan serta kekerasannya. Penelitian ini bertujuan untuk mengetahui pengaruh perendaman larutan cangkang telur ayam ras terhadap kekerasan enamel gigi. Jenis penelitian ialah eksperimental laboratorik dengan posttest only control group design. Sampel penelitian ialah 24 gigi premolar satu rahang atas yang didapatkan dari klinik praktek dokter gigi, puskesmas dan rumah sakit di Kota Semarang. Sampel dibagi atas empat kelompok: kelompok kontrol dan kelompok perlakuan 1, 2, dan 3 (perendaman dalam larutan cangkang telur ayam ras selama 2, 7, dan 14 hari berturut). Hasil uji ANOVA one way memperoleh nilai p=0,000 yang berarti bahwa terdapat perbedaan bermakna pada keempat kelompok. Uji post hoc menunjukkan nilai p<0,05 yang berarti terdapat perbedaan bermakna antara kelompok kontrol (perendaman saliva artificial) dan kelompok perlakuan (perendaman larutan cangkang telur ayam ras 2, 7 dan 14 hari). Simpulan penelitian ini ialah perendaman dalam larutan cangkang telur ayam ras berpengaruh dalam peningkatan kekerasan enamel gigi.Kata kunci: enamel gigi; kekerasan enamel gigi; cangkang telur ayam ras
Distribuição de temperaturas em um cilindro sólido circular infinito com dupla camada: três casos especiais
Authors: Araújo Jorge Corrêa de , Márquez Rosa García
Published: July 2022

Três casos especiais de distribuição de temperaturas em um meio de dupla camada cilíndrica constituída de um elemento combustível conhecido como tório (Th) com revestimento de alumínio (Al) foram analisados com o método de expansão ortogonal e funções de Green. Os perfis de temperaturas evoluíram com o tempo para as soluções estacionárias garantindo a qualidade dos resultados obtidos.
Pengelolaan Keuangan BUMDes: Upaya Mewujudkan Tujuan Pembangunan Berkelanjutan Desa
Authors: Suryo Wibowo Martinus Ivan , Sulistya Hapsari Aprina Nugrahesthy
Published: July 2022

ABSTRACT

Village Owned Enterprises (BUMDes) are considered to have an important role in helping to realize the government's two national programs, namely the acceleration of the Village-Sustainable Development Goals (SDGs) and the Post-pandemic National Economic Recovery. Therefore, good and correct BUMDes Joint financial management is needed so that they can become the driving wheel of the village economy. This study aims to analyze and describe the financial management of BUMDes Bersama based on the principles of transparent, accountable, participatory village financial management, as well as orderly and budgetary discipline. This study uses a qualitative method with data obtained through non-structured interviews with several sources and supported by documentation. The implementation of the principles of financial management in the Joint BUMDes has been carried out, but there are still principles that are not optimal, especially the principles of transparency, accountability, and budget order and discipline. The lack of optimal implementation of this principle is motivated by the limited means of disseminating financial information that is easily accessible to the public and the limited capacity of human resources in preparing consolidated financial reports for the Joint BUMDes business unit.

ABSTRAK

Badan Usaha Milik Desa (BUMDes) Bersama dinilai memiliki peran penting dalam membantu mewujudkan dua program nasional pemerintah, yaitu percepatan Tujuan Pembangunan Berkelanjutan (SDGs) Desa dan Pemulihan Ekonomi Nasional pasca pandemi. Oleh karena itu, diperlukan pengelolaan keuangan BUMDes Bersama yang baik dan benar agar dapat menjadi roda penggerak perekonomian desa. Penelitian ini bertujuan untuk menganalisis dan mendeskripsikan pengelolaan keuangan BUMDes Bersama berdasarkan prinsip pengelolaan keuangan desa yang transparan, akuntabel, partisipatif, serta tertib dan disiplin anggaran. Penelitian ini menggunakan metode kualitatif dengan data diperoleh melalui wawancara non terstruktur kepada beberapa narasumber dan didukung dengan dokumentasi. Implementasi prinsip pengelolaan keuangan pada BUMDes Bersama sudah terlaksana, akan tetapi masih terdapat prinsip yang belum optimal terutama prinsip transparan, akuntabel, serta tertib dan disiplin anggaran. Belum optimalnya implementasi prinsip tersebut dilatarbelakangi oleh masih terbatasnya sarana penyebaran informasi keuangan yang mudah diakses oleh masyarakat dan  terbatasnya kemampuan sumber daya manusia dalam Menyusun laporan keuangan konsolidasi atas unit usaha BUMDes Bersama.
Hubungan Substitusi Real Earning Management dan Accrual Earning Management terhadap Perilaku Pajak Agresif pada Perusahaan Kepemilikan Keluarga di Indonesia
Authors: Masri Indah
Published: July 2022

ABSTRACT

This study looks at the effect of real earnings management (REM) and accrual earnings management (AEM) on tax aggressive behavior, and how the role of family companies on earnings management is applied to that relationship. The study was conducted on manufacturing companies during the period 2016 to 2019, with a total of 78 companies observing 312 company-years. With pool panel balance analysis, the research results show that in accordance with hypothesis 1 to hypothesis 5, that companies that do REM will tend to behave less aggressively than companies that do AEM, because there are no company limitations to do AEM, so companies that will do AEM tend to behave aggressive tax. In the test results in favor of family companies showing a tendency to aggressive behavior in Sari's research (2010). On the other hand, when family firms perform earnings management for tax purposes, they tend to switch to REM rather than AEM. These results contribute to earnings management behavior that is a substitute for accrual and real earnings management to aggressive tax behavior.

ABSTRAK

Penelitian ini melihat pengaruh real earning management serta accrual earning management pada perilaku pajak agresif, dan bagaimana peran perusahaan keluarga atas manajemen laba yang diterapkan entitas pada hubungan itu. Riset dilakukan pada perusahaan manufaktur selama periode 2016 hingga 2019, dengan total 78 perusahaan observasi 312 perusahaan-tahun.  Dengan analisis pool panel balance, hasil penelitian menunjukkan sesuai dengan hipotesis 1 hingga hipotesis 5, bahwa perusahaan yang melakukan REM akan cenderung kurang berperilaku pajak agresif daripada perusahaan yang melakukan AEM, karena belum adanya keterbatasan perusahaan untuk melakukan AEM, sehingga perusahaan yang melakukan AEM cenderung akan berperilaku pajak agresif. Pada hasil pengujian di Perusahaan keluarga menampilkan kecenderungan perilaku pajak agresif mendukung penelitian Sari (2010). Sebaliknya ketika perusahaan keluarga melakukan manajemen laba untuk tujuan pajak cenderung akan beralih melakukan manajemen laba secara real daripada secara akrual. Hasil ini memberikan kontribusi atas perilaku manajemen laba yang bersifat substitusi atas real dan accrual earning management terhadap perilaku pajak agresif.
Constitutional and legal limits of the exercise of state power in modern Russia
Authors: Gumenyuk G. Kh. , Svyatogorova A. E.
Published: July 2022

The legislative innovations introduced into the Constitution of the Russian Federation in 2020 required the reform of the legal understanding of the concepts of “state power”, “public power”, and, in addition, led to the realization of the existence of the phenomenon of “public power”. The Constitutional Court of Russia, through an expansive interpretation in unison with the legislator, explained the structure of the unified public authority, which today includes both the system of state authorities and local self-government bodies. At the same time, the purpose and objectives of public administration were clarified, the implementation of which in a truly legal and democratic state is possible only if the limits of designated public administration formulated in the Basic Law of the country are not violated.
Effect of Concept-Mapping by using Frayer Model on Academic Achievement of Prospective Teachers
Authors: Akhtar Mubashara , Saeed Muhammad
Published: July 2022

Frayer Model is the method of assessment used for concept making but there is still a debate in literature that how effectively Frayer Model helps in improving concept building. The main purpose of this research was to contribute in literature through investigating the effect of Frayer Model on academic achievement of prospective teachers. This study employed quasi-experimental design and sample were 87 prospective teachers. Before experiment, pretest of both groups was taken to ensure that they are at same level. After pretest, treatment was applied in different timeframes for the period of sixteen-weeks and then posttest was taken. Pretest and posttest were same that were developed by applying basic rules and guidelines of test development. The validity of the test was ensured by five experts in the field of assessment and curriculum whereas, psychometric analysis was used to measure the reliability and item characteristic of the test by piloting it on 200 prospective teachers. The data were also collected by using Frayer Model sheets to develop the concepts of prospective teachers on different areas of content taught i.e. foundations, models, designs, types etc. Dependent sample t-test was applied to explore the effect of Frayer Model on academic achievement of prospective teachers while independent sample t-test was applied to compare the scores of two groups. On the basis of research findings, it was concluded that Frayer Model has improved the concepts as well as academic achievement and understanding of prospective teachers.  Further, it was recommended to use Frayer model in the classrooms to improve the students’ academic achievement and develop concepts.

Keywords: Academic Achievement, Assessment, Frayer Model, Prospective Teacher
Effectiveness of Information and Communication Technology (ICT) Integrated Teaching and Learning in Primary Schools
Authors: Roshan Muhammad , Ahmed Mushtaq , Bano Sher , Hussain Nasreen
Published: July 2022

The aim of this study was to explore the effectiveness of Information and Communication Technology (ICT) integrated teaching and learning at primary level in Public Private Partnership (PPP) schools. The study also investigated how ICT is integrated for teaching and learning at primary level in PPP schools. The study was qualitative in design and employed phenomenological approach. Data for the study were collected through semi structured interviews, lesson observations and Focus Group Discussions (FGDs). The study participants were 15 teachers and 5 head teachers. The study indicated that the schools used Smart LED TVs and Tablet PCs with interactive e-learning application and story-based animated content of Science, English and Mathematics for teaching and learning in classroom. The findings of the study showed that ICT integration improved students’ academic achievements, increased their interest in learning and also increased students’ attendance and enrolment. The findings of the study also presented that ICT integration shifted teachers’ teaching practices from teacher centered to student centered, increased their interest in teaching and made teaching easier for them. The findings of the study may be helpful for different stakeholders working to improve the quality of education in the context of underprivileged areas especially PPP organizations, schools and teachers. 

Keywords: Teaching and Learning, ICT Integration, Primary Schools, Technology Effectiveness, Public Private Partnership
Does Research Background Matter? Supervisory Experiences with a Thesis and Non-thesis Post-graduate Students
Authors: Waheed Syed Abdul , Gilani Nadia , Khan Tariq Ali
Published: July 2022

Supervision of the research students is not a trouble-free task. It becomes more challenging when supervisors confront the students of varying potential to carry out the research during the process of the thesis. The researchers sought to explore the supervisory experience of post-graduate (M.Phil) students who had done a thesis and those who had not done a thesis in their last degree. Eleven supervisors of different universities in Punjab, Pakistan participated in this study. The participants were aged from 40 to 60 years and most of them were working as assistant professors. The interview method was used for collecting the data and were analyzed through coding, categorizing and describing the emerging themes from the interview transcripts. The results indicated that M.Phil students with a thesis in their last academic degree were found to be comparatively ‘better’ than non-thesis students regarding the conceptual understanding of the research process, using software, confidence and communication skills and they required less supervisory support. The results were presented in the form of emergent themes that described supervisory experiences with these two types of MPhil students. The study has implications for supervisors and research students, particularly for the non-thesis students who require additional skills to pursue their research degrees.           

Keywords: Thesis students, non-thesis students, higher education, supervisory

experience, supervisory support
Perspectiva de la flexibilización curricular, una mirada desde la praxis educativa en tiempos de pandemia
Authors: Garrido Bermúdez Emerson , Mena Rodríguez Helin Yadira
Published: July 2022

La siguiente  investigación tuvo como objetivo estimar la importancia de la flexibilización curricular en la planeación de las áreas fundamentales durante el confinamiento, a raíz de la situación de salud pública que se vive por la Pandemia,  así miso se buscó la pertinencia de los DBA (Derechos básicos del aprendizaje) y los lineamientos curriculares del Ministerio de Educación Nacional de Colombia, con parámetros de la experiencia de los docentes en el marco de las clases no presenciales, para determinar  si la calidad de los contenidos impartidos virtualmente son adecuados para el proceso de enseñanza y aprendizaje sea optimo con los fines de la educación.

 El estudio tuvo un enfoque cuantitativo, con un diseño no experimental descriptivo, realizado a 50 docentes de la Institución Educativa Barrio Olaya Herrera de Medellín Colombia (I.E.B.O.H). Se aplicó un cuestionario validado el cual se adaptó a la experiencia del docente; los resultados fueron cuantificados en las hojas de cálculo de Excel y el SPSS, en ellos se resalta importancia de planear la evaluación de saberes, ya que esta se dejó de lado por que adquirió más importancia la permanencia de los estudiantes, para evitar la deserción. Se concluyó que es necesario considerar el contexto de la comunidad educativa, los ritmos y estilos de aprendizaje, para llevar la flexibilización teniendo en cuanta cómo será evaluado el proceso y la falta de conectividad en comunidad a la hora de organizar planes para asumir la modalidad virtual.
Anclas de carrera en los estudiantes de los programas de Administración de Empresas y Contaduría Publica de la Facultad de Ciencias Administrativas y Contables de la Corporación Universitaria Adventista-UNAC
Authors: Cuesta Valdès Julyan Esteban , Beltrán Celis Jeffrey Arturo , Martínez Bonilla Yuli Marcela , Martínez Soto Lorena
Published: July 2022

El presente estudio determinó cuáles son las anclas de carrera predominantes en los estudiantes de los programas de Administración de Empresas y Contaduría Pública de la Facultad de Ciencias Administrativas y Contables de la Corporación Universitaria Adventista (UNAC). El referente teórico utilizado fue el Modelo de Medición de Anclas de Carrera propuesto por Edgar Schein (1968), que define las anclas de carrera como los autoconceptos percibidos, habilidades y motivaciones, relacionados con la toma de decisiones en la carrera profesional. El método utilizado para recolectar la información fue la encuesta elaborada con la herramienta de Google forms, basada en el cuestionario planteado por Schein en 1962. De acuerdo con los hallazgos, se confirmó que las anclas de carrera ya están en las personas en la etapa universitaria, pero sólo son auto percibidas una vez que los individuos inician su etapa laboral y tienen diversas experiencias en su entorno de trabajo.
Uso de medios académicos virtuales y adaptabilidad a la vida universitaria durante la pandemia COVID-19 en universitarios de Puno.
Authors: Apaza Flores Ana Hazel , Mamani Benito Oscar Javier
Published: July 2022

El presente trabajo de investigación tuvo como objetivo determinar si el uso de medios académicos virtuales explica significativamente el nivel de adaptabilidad a la vida universitaria durante la Pandemia COVID-19 en universitarios del departamento de Puno. Fue un estudio predictivo explicativo, el diseño metodológico fue no experimental de corte transversal; la muestra de estudio fueron 502 estudiantes de 2 universidades del departamento de Puno, 198 varones y 304 mujeres. Para la medición de variables se usó instrumentos de medición documentales, entre ellos el cuestionario de uso de medios académicos virtuales compuesto por 10 ítems y el cuestionario de adaptabilidad a la vida universitaria compuesto por 11 ítems. Los resultados del análisis de correlación fueron significativos, se encontró que las puntuaciones altas de uso de medios académicos virtuales y sus dimensiones se correlacionan directamente con las puntuaciones de adaptabilidad a la vida universitaria (r = .239; r = .444; r = -.108), esto evidencia que el uso de los medios académicos virtuales explica el nivel de adaptabilidad a la vida universitaria.
Data-driven Prognostics based on Evolving Fuzzy Degradation Models for Power Semiconductor Devices
Authors: Boutrous Khoury , Bessa Iury , Puig Vicenç , Nejjari Fatiha , Palhares Reinaldo M.
Published: July 2022

The increasing application of power converter systems based on semiconductor devices such as Insulated-Gate Bipolar Transistors (IGBTs) has motivated the investigation of strategies for their prognostics and health management. However, physicsbased degradation modelling for semiconductors is usually complex and depends on uncertain parameters, which motivates the use of data-driven approaches. This paper addresses the problem of data-driven prognostics of IGBTs based on evolving fuzzy models learned from degradation data streams. The model depends on two classes of degradation features: one group of features that are very sensitive to the degradation stages is used as a premise variable of the fuzzy model, and another group that provides good trendability and monotonicity is used for the auto-regressive consequent of the fuzzy model for degradation prediction. This strategy allows obtaining interpretable degradation models, which are improved when more degradation data is obtained from the Unit Under Test (UUT) in real time. Furthermore, the fuzzy-based Remaining Useful Life (RUL) prediction is equipped with an uncertainty quantification mechanism to better aid decisionmakers. The proposed approach is then used for the RUL prediction considering an accelerated aging IGBT dataset from the NASA Ames Research Center.