bluuebunny/crossref_metadata_2025 huggingface dataset:
Tell me your IP address, and I will tell who you are. Issues of diagnosis of Internet addiction: illness, disorder, or fiction?
Authors: Dubatova Irina Vladimirovna , Antsyborov Andrey Viktorovich
Published: June 2019

This article is devoted to the analysis of the current state of the problem of Internet addiction, which includes the following issues: the boundaries of diagnosis, diagnostic criteria, clinical manifestations, epidemiology data, neurobiological studies, comorbidity, existing approaches to therapy. In the past of two decades, there was an increase in publications devoted to the phenomenon of Internet addiction. Despite the existing disagreements in the professional environment about the validity of the very concept of «Internet addiction», every year there was several studies in the field of neurobiology, psychology, clinical psychiatry, proving that Internet addiction is a particular variant of behavioral addictive disorders. In the recent years, Internet addiction has gained special significance in a number of Asian countries (China, South Korea), where this type of pathology is becoming a national problem among young people.
Physioprophylaxisin Physiotherapy with Emphasis on Physical Activity
Authors: Kubińska Zofia , Mysula Ihor , Zaworski Kamil , Pocztarska-Głos Agata
Published: June 2019

Currently, physiotherapist's work is to provide health services to healthy and sick people. One of the types of these services is physioprophylaxis, i.e. prophylactic activity consisting in promotion of pro-health behaviours as well as development and maintenance of the fitness and endurance of people of all ages to prevent disability. The term 'physioprophylaxis', which has been familiar to physiotherapists only, has been known in Poland in the area of health culture for merely a few years. The authors of the study believe that there is a need to promote the knowledge about the role of physioprophylaxis in the area of health culture, education, science, and society. The role of physical activity in physioprophylaxis is emphasised as well.

 It is evident that the legal regulations of the profession of physiotherapists are not reflected in appreciation of their comprehensive preventive and therapeutic competences in the health care system or in the general public awareness.
Resources and Indicators of Activity of the Urological Service of the Ivano-Frankivsk Region in Dynamics for 2008-2017
Authors: Detsyk Oryna , Solomchak Dmytro , Scrobach Nadiya , Vyshyvanyuk Vira
Published: June 2019

According to the national system of medical-statistical accounting and reporting, data on human resources supply, network, staffing, structure, logistics and indicators of the activity of the urological service in Ukraine and Ivano-Frankivsk region were analyzed.

It is shown that the urological service of the Ivano-Frankivsk region is characterized by the sufficient provision of qualified personnel, a wide infrastructure in health care institutions of different forms of ownership, the equipment of which allows performing modern mini-invasive interventions only in certain public medical institutions of the secondary level, in еhe Regional Clinical Hospital and in some private health care institutions.

It has been determined that despite the performance of the network optimization over the past decade and the reduction of urological beds, their average use continues to decrease, and the average duration of patients’ treatment remains high, indicating irrational use and excessiveness of inpatient urological care.
A Comparative Study of the Canine Tooth as a Tool in Gender Determination in Nigerian Population
Authors: Otuaga Peter O , Chris-Ozoko Lilian Ebite , Sakpoba Oghenetega lynda , Oyem John Chukwuma
Published: June 2019

Dental evidence has been demonstrated as a major forensic tool for the identification of individuals and sex determination.

The objective of the research was to determine sex in Delta Ibo ethnic group of Nigeria using the mandibular and maxillary canine teeth.

Materials and methods. The study comprised 201 (100 males and 101 females) subjects of Delta Ibo ethnicity at the age of 17 – 25 years. The mesiodistal crown width and intercanine distance of both the maxillary and mandibular canines were measured intraorally using a pair of dividers and a ruler. Unpaired T-test at a probability value of p<0.05 was used to ascertain the mean significant differences between the male and female canine indices.  

Results. Study results showed a statistically significant difference between male and female mandibular and maxillary canine mesiodistal width. This implied a sexual and reversed sexual dimorphism in the studied population.       

Conclusions. The study confirmed that the canines of Delta Ibos exhibit sexual dimorphism like other populations and the maxillary canine indices give the most accurate prediction in sex determination.
Ascomicetos asociados a angiospermas en el bosque mesófilo de montaña del centro de Veracruz, México
Authors: Medel-Ortiz Rosario , Lorea-Hernández Francisco Gerardo , Baeza Guzmán Yajaira , Palestina-Villa Elvia Naara , Belingheri Lagunes Maria Emilia
Published: June 2019

Antecedentes y Objetivos: Aún se conoce poco de los hongos ascomicetos asociados a angiospermas que habitan en el bosque mesófilo de montaña en México, por lo que el objetivo del presente trabajo es incrementar el conocimiento de estos hongos que habitan en ese tipo de vegetación en el estado de Veracruz, México.Métodos: Se realizaron muestreos oportunistas en cinco localidades con fragmentos de bosque mesófilo de montaña en los municipios Coatepec, San Andrés Tlalnelhuayocan y Xalapa. Los especímenes se estudiaron macro y microscópicamente siguiendo las técnicas rutinarias para ascomicetos, utilizando literatura especializada para su identificación. Siempre que fue posible se identificó el hospedero sobre el cual estaban creciendo.Resultados clave: Se encontraron 13 especies de ascomicetos pertenecientes a los órdenes Diaporthales (familia Gnomoniaceae), Helotiales (Dermateaceae, Helotiaceae), Hypocreales (Bionectriaceae, Niessliaceae), Orbiliales (Orbiliaceae) y Pleosporales (Massarinaceae, Montagnulaceae). De las especies estudiadas siete son nuevos registros para México, dos para Veracruz, una pertenece a una especie no descrita y tres son especies previamente citadas para el país, pero se añaden nuevos datos descriptivos. Hydropisphaera suffulta se encontró creciendo de manera natural con su anamorfo Acremonium sp. Además, se cita un caso de micoparasitismo entre Letendraea helminthicola y Helminthosporium velutinum. Los hongos se encontraron creciendo en individuos de las familias Altingiaceae (Liquidambar styraciflua), Boraginaceae (Varronia sp.), Fabaceae (Inga inicuil), Fagaceae (Quercus sp.), Piperaceae (Piper spp.) y cuatro sobre madera de origen desconocido.Conclusiones: El bosque mesófilo de montaña es un reservorio importante de la diversidad de hongos ascomicetos en México y, en este caso, para el estado de Veracruz. En el presente estudio se citan especies de las familias Montagnulaceae y Niessliaceae, que hasta ahora no se habían registrado en este tipo de vegetación. Además se encontraron siete especies que son nuevos registros para México, dos más para Veracruz, y se registra una especie al parecer no descrita del género Belonopsis.
Social Media Surveillance of Multiple Sclerosis Medications Used During Pregnancy and Breastfeeding: Content Analysis
Authors: Rezaallah Bita , Lewis David John , Pierce Carrie , Zeilhofer Hans-Florian , Berg Britt-Isabelle
Published: June 2019

Background

Multiple sclerosis (MS) is a chronic neurological disease occurring mostly in women of childbearing age. Pregnant women with MS are usually excluded from clinical trials; as users of the internet, however, they are actively engaged in threads and forums on social media. Social media provides the potential to explore real-world patient experiences and concerns about the use of medicinal products during pregnancy and breastfeeding.

Objective

This study aimed to analyze the content of posts concerning pregnancy and use of medicines in online forums; thus, the study aimed to gain a thorough understanding of patients’ experiences with MS medication.

Methods

Using the names of medicinal products as search terms, we collected posts from 21 publicly available pregnancy forums, which were accessed between March 2015 and March 2018. After the identification of relevant posts, we analyzed the content of each post using a content analysis technique and categorized the main topics that users discussed most frequently.

Results

We identified 6 main topics in 70 social media posts. These topics were as follows: (1) expressing personal experiences with MS medication use during the reproductive period (55/70, 80%), (2) seeking and sharing advice about the use of medicines (52/70, 74%), (3) progression of MS during and after pregnancy (35/70, 50%), (4) discussing concerns about MS medications during the reproductive period (35/70, 50%), (5) querying the possibility of breastfeeding while taking MS medications (30/70, 42%), and (6) commenting on communications with physicians (26/70, 37%).

Conclusions

Overall, many pregnant women or women considering pregnancy shared profound uncertainties and specific concerns about taking medicines during the reproductive period. There is a significant need to provide advice and guidance to MS patients concerning the use of medicines in pregnancy and postpartum as well as during breastfeeding. Advice must be tailored to the circumstances of each patient and, of course, to the individual medicine. Information must be provided by a trusted source with relevant expertise and made publicly available.
Association Between Institutional Social Media Involvement and Gastroenterology Divisional Rankings: Cohort Study
Authors: Chiang Austin Lee , Rabinowitz Loren Galler , Kumar Akhil , Chan Walter Wai-Yip
Published: June 2019

Background

Patients often look to social media as an important tool to gather information about institutions and professionals. Since 1990, United States News and World Report (USNWR) has published annual rankings of hospitals and subspecialty divisions. It remains unknown if social media presence is associated with the USNWR gastroenterology and gastrointestinal (GI) surgery divisional rankings, or how changes in online presence over time affects division ranking.

Objective

The objective of this study was to determine if social media presence is associated with USNWR gastroenterology and GI surgery divisional rankings and to ascertain how changes in online presence over time affect division rankings.

Methods

Social media presence among the top 30 institutions listed in the 2014 USNWR gastroenterology and GI surgery divisional rankings were assessed using Pearson’s correlation coefficients and multivariate analysis, controlling for covariates. Linear and logistic regression using data from 2014 and 2016 USNWR rankings were then used to assess the association between institutional ranking or reputation score with any potential changes in numbers of followers over time. Sensitivity analysis was performed by assessing the area under the receiver operating characteristic curve to determine the follower threshold associated with improved or maintained ranking, which was done by dichotomizing changes in followers at values between the 7000 and 12,000 follower mark.

Results

Twitter follower count was an independent predictor of divisional ranking (β=.00004; P<.001) and reputation score (β=–.00002; P=.03) in 2014. Academic affiliation also independently predicted USNWR division ranking (β=5.3; P=.04) and reputation score (β=–7.3; P=.03). Between 2014 and 2016, Twitter followers remained significantly associated with improved or maintained rankings (OR 14.63; 95% CI 1.08-197.81; P=.04). On sensitivity analysis, an 8000 person increase in Twitter followers significantly predicted improved or maintained rankings compared to other cutoffs.

Conclusions

Institutional social media presence is independently associated with USNWR divisional ranking and reputation score. Improvement in social media following was also independently associated with improved or maintained divisional ranking and reputation score, with a threshold of 8000 additional followers as the best predictor of improved or stable ranking.
The Internet Intervention Patient Adherence Scale for Guided Internet-Delivered Behavioral Interventions: Development and Psychometric Evaluation
Authors: Lenhard Fabian , Mitsell Kajsa , Jolstedt Maral , Vigerland Sarah , Wahlund Tove , Nord Martina , Bjureberg Johan , Sahlin Hanna , Andrén Per , Aspvall Kristina , Melin Karin , Mataix-Cols David , Serlachius Eva , Högström Jens
Published: June 2019

Background

Patient adherence is defined as the extent to which a patient complies with medical or health advice. At present, there is a lack of reliable and valid measures specifically designed to measure adherence to internet-delivered behavioral interventions.

Objective

The objective of this study was to develop and psychometrically evaluate a novel measure of adherence to guided internet-delivered behavioral interventions.

Methods

In collaboration with experienced clinicians and researchers in the field, a 5-item, clinician-rated internet intervention Patient Adherence Scale (iiPAS) was developed. The initial scale was tested in a sample of children and adolescents (N=50) participating in internet-delivered cognitive behavioral therapy (ICBT) studies. A revised version of the iiPAS was then administered to a larger sample of children and adolescents (N=148) with various behavioral problems participating in ICBT trials. The scale was evaluated according to a classical test theory framework.

Results

The iiPAS demonstrated excellent internal consistency. Factor analyses revealed one underlying factor, explaining about 80% of the variance, suggesting that the scale captures a homogeneous adherence construct. The iiPAS was strongly associated with objective measures of patient activity in ICBT (number of logins, number of written characters, and completed modules). Furthermore, mid- and posttreatment ratings of the iiPAS were significantly correlated with treatment outcomes. By contrast, objective measures of patient activity in the Web-based platform did not correlate with treatment outcomes.

Conclusions

The iiPAS could be a useful tool to measure adherence in a broad range of internet-delivered behavioral interventions.
Information Literacy in Food and Activity Tracking Among Parkrunners, People With Type 2 Diabetes, and People With Irritable Bowel Syndrome: Exploratory Study
Authors: McKinney Pamela , Cox Andrew Martin , Sbaffi Laura
Published: June 2019

Background

The tracking, or logging, of food intake and physical activity is increasing among people, and as a result there is increasing evidence of a link to improvement in health and well-being. Crucial to the effective and safe use of logging is a user’s information literacy.

Objective

The aim of this study was to analyze food and activity tracking from an information literacy perspective.

Methods

An online survey was distributed to three communities via parkrun, diabetes.co.uk and the Irritable Bowel Syndrome Network.

Results

The data showed that there were clear differences in the logging practices of the members of the three different communities, as well as differences in motivations for tracking and the extent of sharing of said tracked data. Respondents showed a good understanding of the importance of information accuracy and were confident in their ability to understand tracked data, however, there were differences in the extent to which food and activity data were shared and also a lack of understanding of the potential reuse and sharing of data by third parties.

Conclusions

Information literacy in this context involves developing awareness of the issues of accurate information recording, and how tracked information can be applied to support specific health goals. Developing awareness of how and when to share data, as well as of data ownership and privacy, are also important aspects of information literacy.
Patient and Health Care Provider Experiences With a Recently Introduced Patient Portal in an Academic Hospital in the Netherlands: Mixed Methods Study
Authors: Vreugdenhil Maria M T , Ranke Sander , de Man Yvonne , Haan Maaike M , Kool Rudolf B
Published: June 2019

Background

In the Netherlands, the health care system and related information technology landscape are fragmented. Recently, hospitals have started to launch patient portals. It is not clear how these portals are used by patients and their health care providers (HCPs).

Objective

The objective of this study was to explore the adoption, use, usability, and usefulness of a recently introduced patient portal in an academic hospital to learn lessons for the implementation of patient portals in a fragmented health care system.

Methods

A mixed methods study design was used. In the quantitative study arm, characteristics of patients who used the portal were analyzed, in addition to the utilization of the different functionalities of the portal. In the qualitative study arms, think-aloud observations were made to explore usability. Focus group discussions were conducted among patients and HCPs of the dermatology and ophthalmology outpatient departments. Thematic content analysis of qualitative data was carried out and overarching themes were identified using a framework analysis.

Results

One year after the introduction of the portal, 24,514 patients, 13.49% of all patients who visited the hospital, had logged in to the portal. Adoption of the portal was associated with the age group 45 to 75 years, a higher socioeconomic status, and having at least one medical diagnosis. Overarching themes from the qualitative analyses were (1) usability and user-friendliness of the portal, (2) HCP-patient communication through the portal, (3) usefulness of the information that can be accessed through the portal, (4) integration of the portal in care and work processes, and (5) HCP and patient roles and relationships.

Conclusions

One year after the introduction of the patient portal, patients and HCPs who used the portal recognized the potential of the portal to engage patients in their care processes, facilitate patient-HCP communication, and increase patient convenience. Uncertainties among patients and HCPs about how to use the messaging functionality and limited integration of the portal in care and work processes are likely to have limited portal use and usefulness.
Design Process and Utilization of a Novel Clinical Decision Support System for Neuropathic Pain in Primary Care: Mixed Methods Observational Study
Authors: Guenter Dale , Abouzahra Mohamed , Schabort Inge , Radhakrishnan Arun , Nair Kalpana , Orr Sherrie , Langevin Jessica , Taenzer Paul , Moulin Dwight E
Published: June 2019

Background

Computerized clinical decision support systems (CDSSs) have emerged as an approach to improve compliance of clinicians with clinical practice guidelines (CPGs). Research utilizing CDSS has primarily been conducted in clinical contexts with clear diagnostic criteria such as diabetes and cardiovascular diseases. In contrast, research on CDSS for pain management and more specifically neuropathic pain has been limited. A CDSS for neuropathic pain has the potential to enhance patient care as the challenge of diagnosing and treating neuropathic pain often leads to tension in clinician-patient relationships.

Objective

The aim of this study was to design and evaluate a CDSS aimed at improving the adherence of interprofessional primary care clinicians to CPG for managing neuropathic pain.

Methods

Recommendations from the Canadian CPGs informed the decision pathways. The development of the CDSS format and function involved participation of multiple stakeholders and end users in needs assessment and usability testing. Clinicians, including family medicine physicians, residents, and nurse practitioners, in three academic teaching clinics were trained in the use of the CDSS. Evaluation over one year included the measurement of utilization of the CDSS; change in reported awareness, agreement, and adoption of CPG recommendations; and change in the observed adherence to CPG recommendations.

Results

The usability testing of the CDSS was highly successful in the prototype environment. Deployment in the clinical setting was partially complete by the time of the study, with some limitations in the planned functionality. The study population had a high level of awareness, agreement, and adoption of guideline recommendations before implementation of CDSS. Nevertheless, there was a small and statistically significant improvement in the mean awareness and adoption scores over the year of observation (P=.01 for mean awareness scores at 6 and 12 months compared with baseline, for mean adoption scores at 6 months compared with baseline, and for mean adoption scores at 12 months). Documenting significant findings related to diagnosis of neuropathic pain increased significantly. Clinicians accessed CPG information more frequently than they utilized data entry functions. Nurse practitioners and first year family medicine trainees had higher utilization than physicians.

Conclusions

We observed a small increase in the adherence to CPG recommendations for managing neuropathic pain. Clinicians utilized the CDSS more as a source of knowledge and as a training tool than as an ongoing dynamic decision support.
Spa hotels: Factors promoting wellness travelers’ postpurchase behavior
Authors: Han Heesup , Thuong Pham Thi Mai , Kiatkawsin Kiattipoom , Ryu Hyungseo Bobby , Kim Jinkyung (Jenny) , Kim Wansoo
Published: June 2019

Our purpose in this study was to provide a clear understanding of spa hotel customers’ behavioral intention formation by examining the intricate relationships among quality, emotion (pleasure and arousal), satisfaction, and desire, and their effect on behavioral intention. Participants
were 300 customers who had visited a spa hotel and used spa services in South Korea at least once within the past 3 years. Results showed the criticality of 3 spa quality dimensions (tangibility, assurance, and empathy) in eliciting pleasure. In addition, pleasure significantly contributed
to improving satisfaction and desire, both of which led to behavioral intention. Results also showed that pleasure, satisfaction, and desire played a crucial mediating role in the theoretical framework. Finally, we successfully built a theoretical framework that efficiently links spa quality
→ emotion → satisfaction/desire → behavioral intention in a sequential manner.
Adolescents’ online anger and aggressive behavior: Moderating effect of seeking social support
Authors: Xie Dengfeng , Xie Zhangming
Published: June 2019

Although anger tends to lead to aggressive behavior, the underlying processes that moderate this relationship are largely unknown. Our aim with this study was to explore the relationship between adolescents’ online anger and cyber aggression and the moderating effect of seeking
online social support. Participants were 509 Chinese adolescents who completed anonymous questionnaires about seeking social support, online anger, and online aggression. Cyber aggression had a significant negative correlation with seeking social support and a significant positive correlation
with online anger. This direct association between online anger and cyber aggression was moderated by seeking social support online, such that the positive relationship between online anger and cyber aggression was significant only among adolescents low in seeking online social support. These
results suggest that seeking online social support can mitigate cyber aggression among adolescents in the context of mild online anger.
Psychometric properties of the Chinese version of the Adolescent Measure of Empathy and Sympathy
Authors: Li Hang , Tan Jun-Wen , Ying Peng-Xing
Published: June 2019

In this study we assessed the validity and reliability of the Chinese version of the Adolescent Measure of Empathy and Sympathy (CAMES). Chinese children and adolescents aged between 9 and 18 years (N = 3,252) completed the CAMES at 2 time points 2 weeks apart. Confirmatory factor
analysis results revealed a 3-factor structure, namely, cognitive empathy, affective empathy, and sympathy, with good model fit. The factors were significantly correlated with the Chinese versions of the Interpersonal Reactivity Index and the Prosocial Tendencies Measure. The intraclass correlation
coefficients demonstrated moderate test–retest reliability for the 3 factors of the CAMES, and Cronbach’s α coefficients ranged from .80 to .87. We observed that adolescents in the older age group scored lower for affective empathy and sympathy than did their younger counterparts.
Our results indicate that the CAMES is a valid and reliable measure of Chinese adolescents’ empathy and sympathy.
Determining preference for potential: The role of perceived economic mobility
Authors: Yang Chen , Zhao Shaochen
Published: June 2019

Although previous researchers have demonstrated that people often prefer potential rather than achievement when evaluating other people or products, few have focused on the boundary conditions on this effect. We proposed that the preference for potential would emerge when individuals’
perception of economic mobility was high, but the preference for achievement would emerge among individuals with low perceptions of economic mobility. Our results showed that people paid more attention to the future (vs. the present) when their perception of economic mobility was high; this,
in turn, promoted more favorable reactions toward potential (vs. achievement). Thus, we suggested circumstances under which highlighting a person’s potential for future success is effective and those when it is not effective. Moreover, we revealed the important role of individual perceptions
regarding economic mobility in driving this effect.
Mediating influences of entrepreneurial leadership on employee turnover intention in startups
Authors: Yang Juan , Guan Zhenzhong , Pu Bo
Published: June 2019

We examined the relationship between entrepreneurial leadership and employee turnover intention in startups in China, through the mediating roles of work-to-family conflict and affective commitment. We collected survey data from ventures newly established within the past 5 years, through
Wenjuanxing, a market research website. We collected 312 survey forms from 56 startups, with no more than 10 from each. We used structural equation modeling to test the hypotheses, and found that entrepreneurial leadership was negatively related to turnover intention through the fully mediating
roles of work-to-family conflict and affective commitment in serial order. Theoretical and practical implications are discussed.
Fermentasi Limbah Kulit Durian Menjadi Cuka Organik Dengan Menggunakan Acetobacter aceti
Authors: Irhamni Irhamni , Diana Diana , Saudah Saudah , Ernilasari Ernilasari , Suzanni Mulia Aria , Mulyati Dewi , Hakim Lukmanul
Published: June 2019

Cuka merupakan hasil olah makanan dari proses fermentasi glukosa dengan menggunakan Sacharomyces cervisiae menghasilkan etanol. Fermentasi etanol secara aerob dengan menggunakan bakteri Acetobacter aceti menghasilkan asam cuka. Metode yang digunakan dalam penelitian ini adalah fermentasi, kemurnian cuka dianalisis dengan menggunakan GC-MS. Hasil yang didapatkan pembentukan asam cuku terbaik terbentuk pada minggu ke-3 hingga ke-4 dengan pH 3,5, dengan puncak kromatogram pada waktu retensi 8,473. Penelitian ini diharapkan dapat dijadikan upaya pemberdayaan dalam meminalisir volume limbah dengan mengolah menjadi produk yang ekonomis
Inventaris Jenis Fitoplankton Di Pulau Pusong, Langsa, Aceh
Authors: Persada Andri Yusman , Navia Zidni Ilman , Saputri Andini , Putri Kartika Aprilia , Al Fajar Beni
Published: June 2019

Plankton merupakan organisme kecil yang melayang di dalam badan air pada perairan dan memiliki kemampuan bergerak yang pasif. Perubahan kondisi lingkungan menentukan kehadiran komunitas plankton yang hadir. Plankton terbagi menjadi fitoplankton dan zooplankton. Fitoplankton merupakan plankton yang dapat melakukan fotosintesis. Salah daerah pesisir yang berada di Kota Langsa adalah Pulau Pusong. Penelitin ini bertujuan untuk mengetahui  jenis fitoplankton apa saja yang terdapat di perairan sekitar Pulau Pusong dan kondisi lingkungan di perairan sekitar Pulau Pusong. Pencuplikan sampel plankton di perairan Pulau Pusong dilakukan sebanyak empat titik sampling. Pengukuran sampel air dilakukan dengan tiga ulangan. Ada 30 jenis fitoplankton yang diperoleh yang terdiri dari genus yaitu Bacillaria, Bacteriastrum, Biddulphia, Ceratium, Chaetoceros, Coscinusdiscus, Dactyliosolen, Dithylum, Eucampia, Leucosolonia, Merismopedia, Navicula, Nitzschia, Odentella, Planktonella, Pseudo-nitzschia, Pyrocystis, Rhizosolenia, dan Thalassionema.
Evaluation of Antioxidant Activity On Plum Fruit (Prunus domestica L.) Skin Extract Applied For Natural Acid-Base Indicator
Authors: Akbar Said Ali
Published: June 2019

Plum peel was extracted through the maceration method with 100 mL ethanol. This process obtained 5% (50 µg/µL) skin extract. The UV-Vis spectrum of the extract displayed the major absorption peak at λmax = 526 nm in acid media, this assigned by the electronic transition from flavylium which as characteristic of anthocyanin compounds. The of anthocyanins stability on temperature effect showed the absorbance decreases with the heating time, while the level of pigment color loss, or the percentage of color loss, gradually increases. The pigment was maintained at 100oC for 100 min with the loss rate reaches 58.5%. Therefore, The loss of anthocyanin color in the plum peel is relatively stable at lower temperatures. Then, The plum peels extract shown the red color at pH 1-3, almost colorless at pH 4-7, and violet color at pH 12. Finally, plum peels extract was potentially used as the acid-base indicator.
Karakteristik Nanopartikel Magnetite Besi Oksida Lampanah Aceh Besar Melalui Metode Kopresipitasi
Authors: Nengsih Sri
Published: June 2019

Sintesis pasir besi lampanah Aceh Besar menjadi nanopartikel magnetite besi oksida menjadi tujuan utama dalam penelitian ini untuk mengamati struktur Kristal yang dimilikinya. Sifat Kristalin yang tinggi ketika terjadi perubahan fisis dari material menjadikan kajian ini layak untuk diteliti. Melalui teknik pemisahan menggunakan magnet batang, pasir besi dari alam dipisahkan dari pengotor lalu disaring dengan ayakan yang berukuran 200 mesh. Pasir besi berkualitas baik disintesis dengan menggunakan metode kopresipitasi yang mana pasir besi dilarutkan ke dalam 12 M Asam Klorida 37 % v/v. Larutan tersebut diaduk dan disaring, kemudian hasil larutan dicampurkan dengan 6,5 M  ammonia dengan perbandingan ratio campuran 1:7. Melalui proses aduk dan saring, hasil endapan kemudian dikeringkan.  Berdasarkan hasil uji XRD, SEM dan Cacah magnetik didapati karakteristik nanopartikel magnetite besi oksida. Berdasarkan data XRD, didapati  sudut 2 thetanya 30,105o; 35,45o dan 62,585o dengan indek miller [hkl]: [220], [311] dan [440]. Nilai [hkl] ini menunjukkan bahwa nanopartikel magnetite dari pasir besi Lampanah memiliki struktur kristal Kubik dengan struktur kisinya FCC (Face Center Cubic). Berdasarkan uji SEM, morfologi nanopartikel magnetite besi oksida berbentuk tidak seragam dengan ukuran partikel yang relatif tidak sama berada dalam rentang  800 nm sampai 3000 nm. Sedangkan untuk cacah medan magnetik dalam bentuk pasir besi didapati nilai cacahannya 0,03 mT sedangkan dalam bentuk nanopartikel magnetite diperoleh 0,022 mT. Kesimpulan yang didapati bahwa struktur Kristal dari pasir besi Lampanah semakin terlihat ketika ukuran besi oksida menjadi nanopartikel magnetite. Langkah pengoptimalan dalam preparasi pasir besi menjadi nanopartikel magnetite diperlukan agar ukuran partikelnya di bawah < 100 nm sehingga dapat diaplikasinya dalam bidang elektronik, kesehatan dan sebagainya.
The Evaluation of Building’s Structural Reliability of Masjid Tuha Indrapuri, Aceh Besar
Authors: Putra Riza Aulia , Hadi Saiful
Published: June 2019

Masjid Tuha Indrapuri is one the ancient mosques in Aceh located in the district of Aceh Besar. The precise location of the mosque is in Indrapuri, Aceh Besar. Masjid Tuha Indrapuri exists right in the complex of the former temple. This mosque was built on an area of 33,875 square meters using the wooden material. The construction is supported by 4 (four) main pillars (that in terms of Javanese architecture known as “Soko Guru”) with the shape of an octagonal cross section. Given the age of the mosque that is quite old, the structural reliability of the mosque structure has certainly been worn off, especially in the column and beam structure. The condition of several columns and beams is currently tilted. In this study, an assessment of the robustness of the buildings was performed using forensic engineering method. The purpose of this study is to evaluate the reliability of this old mosque so that the data related to every of its structural component can be obtained. Through this evaluation, it was expected that the strategy or treatment that needs to be planned to the building could be determined, therefore at the end, it can continuously stand as its ideal condition.
Historias paralelas: historias de ayer y hoy
Authors: Méndez Guerrero Patricia
Published: June 2019

Historias Paralelas es un programa radiofónico, creado como un piloto para la divulgación de contenidos académicos que permiten la observación de hechos actuales desde la perspectiva histórica o de eventos de la historia desde un enfoque de impacto en nuestro presente. La experiencia de trabajo interdisciplinario se convirtió en un proyecto de comunicación del quehacer académico más allá de las aulas universitarias.
Desarrollo profesional: una herramienta efectiva para el crecimiento integral de los profesionales en inglés en la UNED
Authors: Brizuela-Gutiérrez Tobías
Published: June 2019

El desarrollo profesional es una oportunidad valiosa que invita a los docentes en la enseñanza del inglés a seguir actualizándose en temáticas relacionadas con su campo de acción y les permite además seguir creciendo en su perfil académico y profesional. Dichas oportunidades, sean estos talleres especializados, seminarios de actualización, seminarios en línea, conversatorios o sesiones magistrales; son, sin duda, espacios que abordan una variedad de temáticas que vienen a complementar y enriquecer enormemente la labor docente.
the Cardio-respiratory Fitness in Medical Students by Queen’s College Step Test: A Cross-sectional Study
Authors: Koju Bibek , Chaudhary Shaligram , Shrestha Anupama , Joshi Lok Raj
Published: June 2019

Introduction: Cardio-respiratory fitness indicates the ability of circulatory system to supply oxygen toworking muscles during continuous physical activity. Maximum oxygen uptake (VO2max) is a single bestmeasure of cardio-respiratory fitness and is considered gold standard to quantify aerobic capacity. Methods:Eighty students of age group 18-25 years were taken by simple random sampling. VO2max was estimatedindirectly by following the protocol of Queen’s College Step Test (QCST) method. Results: Mean value ofVO2max for male (51.61±6.26 ml/Kg/min) and female (36.02±3.71 ml/Kg/min) was compared, which wasfound significantly higher in males than in females (p<0.001). There was negative correlation of gender(r = -0.838), body mass index (BMI) (r = -0.339), obesity category (r = -0.275), obese vs non-obese (r =-0.264) and basal pulse rate (r = -0.456) with VO2max and positive correlation of height (r = 0.592) and hoursof study(r = 0.309) with VO2max. Conclusion: This study showed that increased BMI is associated withdecreased level of VO2max in young adults. One can improve VO2max by maintaining BMI within normallimits.
The aspect of time in online health information behaviour
Authors: Tana Jonas , Eirola Emil , Eriksson-Backa Kristina
Published: June 2019

Temporal structures and rhythmicity are universal phenomena and affect all aspects of life, including dynamic processes like health and well-being that change over time. Health related issues and threats trigger health information behaviour, a majority of which happens online and thus leaves digital traces behind. This study analyses the temporal variations and rhythmicity of health information behaviour through the action of online posting in a large Finnish discussion forum, Suomi24. The findings in this study show that health information behaviour follow clear and robust rhythmicity on both a seasonal and daily level. This endorses the notion that well-being, health and illness are dynamic processes that change with time and can help provide a more holistic picture of health and well-being, including aspects that fall outside professional healthcare settings. Studying when health information behaviour happens can thus have wide-ranging consequences.
Avoin data, avoin julkaiseminen ja kirjastot datayhteiskunnan solmuina – QQML 2019 konferenssi
Authors: Haasio Ari , Saarti Jarmo
Published: June 2019

Tässä artikkelissa luodaan katsaus toukokuussa 2019 Italiassa pidettyyn yhdenteenteentoista QQML (Qualitative and Quantitateve Methods in Libraries) konferenssiin. Avoin tiede ja sen eri alueet olivat tässäkin konferenssissa näkyvässä asemassa. Sen lisäksi esitelmissä käsiteltiin kirjastojen ja niiden toiminnan näyttöön perustuvaa kehittämistä ja johtamista.
Load Identification Using Harmonic Based on Probabilistic Neural Network
Authors: Anggriawan Dimas Okky , Amsyar Aidin , Prasetyono Eka , Wahjono Endro , Sudiharto Indhana , Tjahjono Anang
Published: June 2019

Due to increase power quality which are caused by harmonic distortion it could be affected malfunction electrical equipment. Therefore, identification of harmonic loads become important attentionÂ  in the power system. According to those problems, this paper proposes a Load Identification using harmonic based on probabilistic neural network (PNN). Harmonic is obtained by experiment using prototype, which it consists of microcontroller and current sensor. Fast Fourier Transform (FFT) method to analyze of current waveform on loads become harmonic load data. PNN is used to identify the type of load. To load identification, PNN is trained to get the new weight. Testing is conducted To evaluate of the accuracy of the PNN from combination of four loads. The results demonstrate that this method has high accuracy to determine type of loads based on harmonic load
Spatio Temporal with Scalable Automatic Bisecting-Kmeans for Network Security Analysis in Matagaruda Project
Authors: Hisyam Masfu , Barakbah Ali Ridho , Syarif Iwan , S Ferry Astika
Published: June 2019

Internet attacks are a frequent occurrence and the incidence is always increasing every year, therefore Matagaruda project is built to monitor and analyze internet attacks using IDS (Intrusion Detection System). Unfortunately, the Matagaruda project has lacked in the absence of trend analysis and spatiotemporal analysis. It causes difficulties to get information about the usual seasonal attacks, then which sector is the most attacked and also the country or territory where the internet attack originated. Due to the number of unknown clusters, this paper proposes a new method of automatic bisecting K-means with the average of SSE is 93 percents better than K-means and bisecting K-means. The usage of big spark data is highly scalable for processing massive data attack.
AGC of a multi sources power system with natural choice of power plants
Authors: Garg Jitendra Kumar , Khosla Anita , Hakimuddin Nizamuddin
Published: June 2019

This paper presents an application of optimal control theory in multi sources power system by considering natural choice of power plants participating in automatic generation control (AGC) scheme. However, for successful operation of large power system, the natural choices of generation suitable for AGC system are hydro and thermal power plants since gas and nuclear power plants are rarely participates in the AGC scheme. Therefore, this work presents design and implementation of proportional integral (PI) structured optimal AGC controller in the presence of hydro and thermal power plants by using state vector feedback control theory. Moreover, various case studies are identified to obtain: (i) Cost aspects of physical realization of optimal AGC controller, (ii) Closed loop system stability margin through patterns of eigenvalues and (iii) System dynamic performance. Further, results have shown that when optimal AGC scheme is implemented in power system, the dynamic performance of power system is outstanding over those obtained with genetic algorithms (GAs) tuned PI structured AGC controller. Besides, with optimal AGC controller, cheaper cost of control structure, increased in system closed loop stability margin and outstanding dynamic performance of power system have been found when lessening in hydro generationÂ is replaced by generation from thermal power plants for various case studies under investigation.
FPGA Based Design of Artificial Neural Processor Used for Wireless Sensor Network
Authors: Saeed Azzad Bader , Gitaffa Sabah Abdul-Hassan
Published: June 2019

In this paper,Â  a simulation ofÂ  artificial intelligent system has been designed for processingÂ  the incoming data ofÂ  sensorÂ  units and then presenting proper decision. The Back-propagation Neural Network BPNN has been used as the proposedÂ  intelligent system for this work, whereas the BPNN is considered as a trained network in conjunction with an optimization method for changing the weights and biases of the overall network. The main two features of theÂ  BPNN are: high speed processing, and producingÂ  lowest Mean-Square-Error MSE ( cost function ) in few iterations. The proposed BPNN has used the linear activation functions 'Satlins' and 'Satline' for the hidden and output layer respectively, and has used the training function 'Traingda' ( which is gradient descent with adaptive learning rate)Â  as a powerful learning method. It is worth to mention, that no previous research used these three functions together for such analysis. The MATLAB software package has been used forÂ  designing and testing the proposed system. An optimal result has been obtained in this work, where the value ofÂ  Mean-Square-Error has reached to zeroÂ Â  in 87 epochs, and the real and desired outputs have been fitted. In fact, there isÂ  no previous work has reached to this optimal result.Â  The proposed BPNN has been implemented in FPGA, which is fast, and low power tool.
Medical Health Record Protection Using Ciphertext-Policy Attribute-Based Encryption and Elliptic Curve Digital Signature Algorithm
Authors: Fitri Novi Aryani , Al Rasyid M. Udin Harun , Sudarsono Amang
Published: June 2019

Information on medical record is very sensitive data due to the number of confidential information about a patient's condition. Therefore, a secure and reliable storage mechanism is needed so that the data remains original without any changes during it was stored in the data center. The user must go through an authentication process to ensure that not an attacker and verify to ensure the authenticity and accuracy of the data received. In this research, we proposed a solution to secure medical data using the Ciphertext-Policy Attribute-Based Encryption (CP-ABE) and Elliptic Curve Digital Signature Algorithm (ECDSA) methods. Our system can secure data centers from illegal access because the uploaded data has patient control over access rights based on attributes that have been embedded during the data encryption process. Encrypted data was added to the digital signature to pass the authentication process before being sent to the data center. The results of our experiments serve efficient system security and secure with low overhead. We compare the proposed system performance with the same CP-ABE method but donâ€™t add user revocation to this system and for our computing times are shorter than the previous time for 0.06 seconds and 0.1 seconds to verify the signature. The total time in the system that we propose requires 0.6 seconds.
Enhanced PEGASIS using Dynamic Programming for Data Gathering in Wireless Sensor Network
Authors: Mufid Mohammad Robihul , Al Rasyid M. Udin Harun , Syarif Iwan
Published: June 2019

A number of routing protocol algorithms such as Low-Energy Adaptive Clustering Hierarchy (LEACH) and Power-Efficient Gathering in Sensor Information Systems (PEGASIS) have been proposed to overcome the problem of energy consumption in Wireless Sensor Network (WSN) technology. PEGASIS is a development of the LEACH protocol, where within PEGASIS all nodes are active during data transfer rounds thus limiting the lifetime of the WSN. This study aims to propose improvements from the previous PEGASIS version by giving the name Enhanced PEGASIS using Dynamic Programming (EPDP). EPDP uses the Dominating Set (DS) concept in selecting a subset of nodes to be activated and using dynamic programming based optimization in forming chains from each node. There are 2 topology nodes that we use, namely random and static. Then for the Base Station (BS), it will also be divided into several scenarios, namely the BS is placed outside the network, in the corner of the network, and in the middle of the network. Whereas to determine the performance between EPDP, PEGASIS and LEACH, an analysis of the number of die nodes, number of alive nodes, and remaining of energy were analyzed. From the experiment result, it was found that the EPDP protocol had better performance compared to the LEACH and PEGASIS protocols in terms of number of die nodes, number of alive nodes, and remaining of energy. Whereas the best BS placement is in the middle of the network and uses static node distribution topologies to save more energy.
Enhancing the Productivity of Wire Electrical Discharge Machining Toward Sustainable Production by using Artificial Neural Network Modelling
Authors: Mohd Zakaria Muhammad Akmal , Raja Abdullah Raja Izamshah , Kasim Mohd Shahir , Ibrahim Mohamad Halim
Published: June 2019

Sustainability plays an important role in manufacturing industries through economically-sound processes that able to minimize negative environmental impacts while having the social benefits. In this present study, the modeling of wire electrical discharge machining (WEDM) cutting process using an artificial neural network (ANN) for prediction has been carried out with a focus on sustainable production. The objective was to develop an ANN model for prediction of two sustainable measures which were material removal rate (as an economic aspect) and surface roughness (as a social aspect) of titanium alloy with ten input parameters. By concerning environmental pollution due to its intrinsic characteristics such as liquid wastes, the water-based dielectric fluid has been used in this study which represents an environmental aspect in sustainability. For this purpose, a feed-forward backpropagation ANN was developed and trained using the minimal experimental data. The other empirical modelling techniques (statistics based) are less in flexibility and prediction accuracy. The minimal, vague data and nonlinear complex input-output relationship make this ANN model simple and perfects method in the manufacturing environment as well as in this study. The results showed good agreement with the experimental data confirming the effectiveness of the ANN approach in the modeling of material removal rate and surface roughness of this cutting process.