bluuebunny/crossref_metadata_2025 huggingface dataset:
Keabsahan Akta PPAT Yang Tidak Ditandatangani Para Saksi (Studi Putusan PN. No.16/Pdt.G/2015/Pn.Krg)
Authors: Tjipto Valerio Xaverius
Published: August 2020

ABSTRACT

            PPAT Deed is an authentic deed in the case of certain legal actions, especially in the case of transfer of land rights from one party to another party. An authentic deed is a deed made by an authorized official for that, in the place where the deed was made and the format is in accordance with the provisions of the legislation in force. The authentic PPAT deed must be read in front of the parties, and signed by the witnesses and PPAT. The legal standing of witness in the PPAT authentic deed is as an instrument witness who witnessed and knew the making of the PPAT deed and also as evidence to strengthen the PPAT deed was made. If there is a legal problem with the PPAT deed, the instrumentair witness who signed the PPAT deed can be asked for information relating to the implementation of the PPAT deed, including information about the presence of the parties who signed the PPAT deed before the PPAT and the witnesses. The problem in this research is how the legal arrangement of witnesses in the PPAT deed, How is the legal effect on the PPAT deed whose signature was carried out in the presence of two witnesses and How is the legal analysis considered by the Panel of Judges in the Karanganyar District Court Decision No. 16 / Pdt.G / 2015 / PN.Krg.

            This type of research is empirical juridical research, in which the approach to the problem is carried out by reviewing the implementation of PPAT obligations based on the applicable laws and regulations in this case are Articles 21 and 22, PP No. 24 of 2016 concerning amendments to PP No. 37 of 1998 concerning PPAT position regulations and this research was also supported by conducting direct interviews with 3 PPAT people whose working area was in Medan City.The results of the study stated that the legal arrangements regarding witnesses in the PPAT deed contained in Articles 21 and 22, PP No. 24 of 2016 concerning amendments to PP No. 37 of 1998 concerning PPAT position regulations, Article 18 paragraphs 3, 4 and 5 of the regulation of the State Minister for Agrarian Affairs / Head of the National Land Agency (BPN) Number 1 of 2006 concerning Provisions for Implementing Government Regulation Number 37 of 1998 concerning PPAT Position Regulations, Article 1895-1912 Civil Code in the description of the criteria for witnesses recognized in making the PPAT deed and Article 37 PP No. 24 of 1997 concerning land registration, the legal consequence of the PPAT deed which was signed before two witnesses was that the PPAT deed was degraded to a deed under the hand, because it contained a formal legal flaw and the legal analysis of the Judge Panel's consideration in the Karanganyar District Court Decision No. 16 / Pdt.G / 2015 / PN.Krg which states that the PPAT has committed acts against the law and the authentic deed has been degraded to a deed under the hand.Keywords: PPAT Law, PPAT Deed, and the Witness Position
Cartas autobiográficas de formação e profissão:
Authors: Barzano Marco Antonio Leandro
Published: August 2020

As cartas têm sido utilizadas como dispositivo de pesquisa no campo da Educação e, para este artigo, são apresentadas duas cartas, com a centralidade na Educação Ambiental: a primeira, anuncia o passado, ou seja, a trajetória de formação e profissão de um pesquisador-extensionista de uma universidade pública baiana e que foi apresentada na sua promoção para professor pleno; a segunda é o registro para se lançar ao futuro, pois é uma carta escrita para uma criança de onze anos.  A inspiração teórica e metodológica se dá a partir as narrativas (auto)biográficas, que tem possibilitado potencializar as narrativas epistolares como instrumento da produção textual e de conhecimento.
"Gosta de flor?”
Authors: Duque Tiago , Solon Soraya
Published: August 2020

Esse artigo analisa a experiência da oficina “Corpo, Gênero e Sexualidade na Educação”, realizada pela Liga Acadêmica Multidisciplinar de Saúde do Adolescente (Universidade Federal de Mato Grosso do Sul), com professores/as de escolas públicas, a convite da Prefeitura Municipal de Campo Grande. Abordou-se essa temática em uma perspectiva comprometida com a garantia dos direitos sexuais e reprodutivos. Em tempos de cruzada moral, devido um movimento transnacional anti-gênero, a atividade permite-nos refletir a respeito da utilização de técnicas em grupo, como a de clown, para trabalhar com temas que têm sido vistos como “ameaça a infância e a família”. Proporciona também uma reflexão teórico-metodológica sobre o agir e sentir em tempos de pânicos morais e ameaças de criminalização do trabalho docente sobre gênero e sexualidade.
A dimensão ético-estética do “cultivo de si” em Nietzsche
Authors: Hardt Lúcia Schneider
Published: August 2020

Este artigo tem como objetivo apresentar uma síntese da crítica de Nietzsche à moralidade para contestar o que é tomado como a totalidade da experiência ética e estética na modernidade. Com isso não exclui a legitimidade de toda e qualquer categoria normativa. Compartilha por meio do personagem Zaratustra e seus exercícios de experimentação de si outra dimensão da ética e da estética qual seja: o caminho da autossuperação. Sempre estaremos diante de novos desertos, novos perigos, outras disputas, que exigirão outro modo de afirmar a vida. Por fim, é possível notar que o deslocamento de Zaratustra é um movimento pedagógico, afinal ele nos educa ao educar a si mesmo por meio do cultivo de si como processo fundamental para se tornar o que se é e vivenciar no corpo a dimensão do espírito livre.
Electrochemical harvesting of microalgae꞉ Parametric and cost-effectivity comparative investigation
Authors: Al-Yaqoobi Atheer , Al-Rikabey Muna , Al-Mashhadani Mahmood
Published: August 2020

The cost of microalgae harvesting constitutes a heavy burden on the commercialization of biofuel production. The present study addressed this problem through economic and parametric comparison of electrochemical harvesting using a sacrificial electrode (aluminum) and a nonsacrificial electrode (graphite). The harvesting efficiency, power consumption, and operation cost were collected as objective variables as a function of applied current and initial pH of the solution. The results indicated that high harvesting efficiency obtained by using aluminum anode is achieved in short electrolysis time. That harvesting efficiency can be enhanced by increasing the applied current or the electrolysis time for both electrode materials, where 98% of harvesting efficiency can be obtained. The results also demonstrated that the power consumption with the graphite anode is higher than that of aluminum. However, at 0.2 A the local cost of operation with graphite (0.036 US$/m3) is distinctly lower than that of aluminum (0.08 US$/m3). Furthermore, the harvesting efficiency reached its higher value at short electrolysis time at an initial pH of 6 for aluminum, and at an initial pH of 4 for graphite. Consequently, the power consumption of the harvesting process could be reduced at acid- nature conditions to around 0.46 kWh/kg for aluminum and 1.12 kWh/kg for graphite.
Sex Differences in Coronary Artery Calcium and Mortality from Coronary Heart Disease, Cardiovascular Disease, and All Causes in Adults with Diabetes: The Coronary Calcium Consortium
Authors: Wong Nathan D , Hsu Amber R Cordola , Rozanski Alan , Shaw Leslee J , Whelton Seamus P. , Budoff Matthew J , Nasir Khurram , Miedema Michael D , Rumberger John , Blaha Michael J , Berman Daniel S
Published: August 2020

Objective: While diabetes mellitus (DM) has been previously noted to
be a stronger risk factor for cardiovascular disease (CVD) in women compared to
men, it is not clear if this still the case.
Coronary artery calcium (CAC) predicts coronary heart disease (CHD) and CVD
in persons with DM; however, its sex-specific impact is less defined. We
compared the relation of CAC in women versus men with DM for total, CVD, and CHD
mortality.

Research Design and Methods: We studied adults with DM from a large registry of patients
with CAC scanning with mortality follow-up over 11.5 years. Cox regression
examined the relation of CAC with mortality endpoints.

Results: Among 4,503 adults with DM (32.5% women) aged 21-93 years, 61.2%
of women and 80.4% of men had CAC>0. Total,
CVD, and CHD mortality rates were directly related to CAC; women had higher
total and CVD death rates than men when CAC>100. Age and risk
factor-adjusted hazard ratios (HRs) per log unit CAC were higher among women versus
men for total (1.36 vs. 1.21) and CVD mortality (1.67 vs. 1.33) (interaction p=0.01
for both) but similar for CHD mortality (1.53 and 1.48). For CVD mortality, HR’s with CAC scores of
101-400 and >400 were 3.67 and 6.27, respectively for women and 1.63 and
3.48, respectively for men (interaction p=0.04). For total mortality HRs were 2.56 and 4.05
for women, respectively, and 1.88 and 2.66 for men, respectively (interaction p=0.01).

Conclusion: CAC predicts CHD, CVD, and all-cause mortality in patients
with DM; however, greater CAC predicts
CVD and total mortality more strongly in women.
Anti-Insulin receptor antibodies improve hyperglycemia in a mouse model of human insulin receptoropathy
Authors: Admin Ada , Brierley Gemma V , Webber Hannah , Rasijeff Eerika , Grocott Sarah , Siddle Kenneth , Semple Robert K
Published: August 2020

Loss-of-function
mutations in both alleles of the human insulin receptor gene (INSR) cause
extreme insulin resistance (IR) and usually death in childhood, with few effective
therapeutic options. Bivalent anti-receptor
antibodies can elicit insulin-like signaling by mutant INSR in cultured cells,
but whether this translates into meaningful metabolic benefits in vivo,
where dynamics of insulin signaling and receptor recycling are more complex, is
unknown. To address this we adopted a
strategy to model human insulin receptoropathy in mice, using Cre recombinase
delivered by adeno-associated virus to knock out endogenous hepatic Insr
acutely in floxed Insr mice (L-IRKO+GFP), before adenovirus-mediated
‘add-back’ of wild-type (WT) or mutant human INSR. Two murine anti-INSR monoclonal antibodies,
previously shown to be surrogate agonists for mutant INSR, were then tested by intraperitoneal
injections. As expected, L-IRKO+GFP
mice showed glucose intolerance and severe hyperinsulinemia, and this was fully
corrected by add-back of WT but neither D734A nor S350L mutant INSR. Antibody injection improved
glucose tolerance in D734A INSR-expressing mice and reduced hyperinsulinemia in
both S350L and D734A INSR-expressing animals, and did not cause hypoglycemia in
WT INSR-expressing mice. Antibody treatment also downregulated both wild-type
and mutant INSR protein, attenuating its beneficial metabolic effects. Anti-INSR
antibodies thus improve IR in an acute model of insulin receptoropathy, but these
findings imply a narrow therapeutic window determined by competing effects of
antibodies to stimulate receptors and induce their downregulation.
ICT in Optimization of Machines Movement at Open-Pit Coal Mine
Authors: Ivanovic Milos Gradimir , Prof. dr Dobrila Skataric
Published: August 2020

Auxiliary machinery is used at the open-pit coal mine (machines: bulldozers, trench excavators, pipe-laying machines,....) for performance of auxiliary work (excavation, construction of route,....) in order to provide an uninterrupted operation of the basic machinery for excavation of waste rock and coal. Machines are moving from one area of the open-pit to another. Movement of machines along the open-pit is limited space-wise by conveyor belts serving for conveyance of waste rocks and coal, including other natural obstructions (steep slopes, mud, water). These obstructions affect the open-pit machinesâ€™ length of trajectory, duration of movement and consumption of fuel. Observing the said problem, a model for optimizing the â€œmovementâ€ of open-pit auxiliary machinery has been developed and applied with ICT, namely GPS/GPRS and appropriate software solution, as presented herein. Model determines the â€žshortestâ€œ path of the machine to the job which can result in significant fuel savings and reducing failures machines.
Meanings attributed by a group of adult men to the experience of having type 2 diabetes mellitus
Authors: Vázquez López Nuria , Fernández Rodríguez María , García Vega Elena , Guerra Mora Patricia
Published: August 2020

Background: Trans people may find themselves in a situation of social discrimination, reflected in their health and in the lack of scientific research. The minority stress theory points out the importance of social support for the stress of sexual or gender minorities. This study aims to explore social support and its dimensions in this population. Method: 81 people participate, of which 36 are trans and 45 non-trans (cisgender), as a control group. The Mos Social Support Survey is applied to measure perceived social support and a questionnaire with sociodemographic variables. Results: The results show that there are no differences in the perceived social support between both groups. However, sociodemographic variables such as having a partner, age, and employment situation show change for the trans population in some dimensions. Conclusion: These findings promote future lines of research that expand the knowledge of these variables in this group.
Transurethral removal for successful diagnosis of bladder malakoplakia: A rare case report
Authors: Vujichikj Ivo
Published: August 2020

Introduction: Malakoplakia is a rare granulomatous inflammatory disorder of infectious etiology that most often involves the urinary tract. Because it is so rare and can present in several different ways, malakoplakia poses a difficult diagnostic challenge. Case report: We report an unusual clinical case of bladder malakoplakia in a 75-year -old man. He presented to urologist with hematuria, burning on urination, urinary urgency and frequency. Cystoscopy evaluation revealed yellowish polypoid lesion with easy bleeding in the trigone of the bladder. Microscopic evaluation showed acidophilic, foamy histiocytes (Von Hansemann cells) admixed with Michaelis-Gutmann inclusions. The final postoperative diagnosis was malakoplakia of the bladder. In conclusion, we reported a case of malakoplakia of the bladder diagnosed with minimally invasive approach by transurethral resection. It is important to be aware of this rare granulomatous disease as accurate diagnosis with antibiotic treatment can prevent possible complications.
Rare penile keloid after circumcision: Case report and literature review
Authors: Muhammad Izzuddin , Mohamad Jeremi , Ahmad Sukari
Published: August 2020

Abstract: Objective: To report a case of keloid formation after circumcision and review the literature for similar cases to formulate possible risk factors contributing to its development as well as its treatment options. Method: a literature review was done using PubMed and Google Scholar by searching the keyword "keloid", "penis" and "circumcision". Additional searches were done on references from related articles. The articles are then reviewed by the author, noting for possible predisposing factors to keloid formation, along with patient demographics and method of treatments. Findings were then tabulated and analyzed using Microsoft Excel (2018). Results: Thirteen case reports on penile keloid after circumcision with a total of 16 patients were found dating from 1993 to 2017. Circumcision in four cases (25%) were complicated with infection or dehiscence. The median age during circumcision is 9 years old. Two patients (12.5%) were reported with the tendency for keloid. The ethnicity of the patients is as follows; Turkish (7 cases, 43.7%), African descent (4 cases, 25%), Chinese (3 cases, 18.75%), Indian (1 case 6.25%) and Caucasian (1 case, 6.25%). Ten (62.5%) cases were treated with a combination of excision and immediate injection of triamcinolone acetate. Others were treated with either excision alone, steroid injection alone or excision with topical steroid. Maintenance treatment includes topical steroid, intralesional injection of steroid, and silicone gel. Recurrence occurred in one patient. Conclusion: The minuscule number of published reports of keloid formation after circumcision underscores the rarity of the complication. No specific risk factors can be attributed to stratify patients who may develop keloid after circumcision. Excision followed by triamcinolone acetate injection with maintenance therapy until scar maturity is the preferred choice of treatment for penile keloid.
Role of facet joint orientation and facet tropism in nonspecific low back pain
Authors: Ezgi Akar , Aysegul Akdogan
Published: August 2020

Background: Low Back Pain is a complaint at least once we experience all through our life. Although low back pain can be caused by several reasons, mostly low back pain due to nonspecific reasons can be encountered. In this study, our main goal is to examine facet tropism types and facet joint orientation in patients with nonspecific low back pain we have grouped according to age and determine if there is a relationship between the low back pain and facet joint morphology. Patients and methods: We have retrospectively examined magnetic resonance imaging of 135 patients who applied to the neurosurgery clinic with low back pain complaints in the period of 2017-2018 year. For each phenomenon, facet joint angles have been measured at all vertebra levels. Average values of facet joint angles have been taken and facet orientation has been determined. The difference between right and left facet joint angle has been calculated; degree and type of facet tropism have been determined. Results: It has been observed that facet joint orientation at L1-2 level was more coronalized in age group of 70-80 when compared to age group of 10-20. 'No type' facet tropism has been observed in the majority of the phenomenon and no significant difference has been observed between lumbar levels and age groups. Conclusion: As a result of our study; it has been concluded that facet joint orientation and facet tropism are not effective in the etiology of nonspecific low back pain. Furthermore, facet tropism is not related to age and maybe it is an inborn characteristic.
Quality of impressions using two different brands of polyvinyl siloxane impression materials
Authors: Eksi Ozsoy , Najafova Lamia , Kurtulmus Huseyin
Published: August 2020

Background: This study was to evaluate the impression quality and clinical success of 2 Polyvinyl siloxane (PVS) impression materials by using dual-viscosity 1-step impression technique and the putty-wash two-step impression technique. Methods: In this study, Variotime (Heraeus, Hanau, Germany) and a novel silicone Spirias (Imicryl, Konya, Turkey) were selected as PVS impression materials. A total of 40 samples were divided into groups according to the impression technique. Three possible categories were established to rate the impression quality. The impression was examined using a laboratory microscope (Opmi Pico, Zeiss) and lenses with 2X to 6X magnification for the presence or absence of bubbles or voids and the complete reproduction of the preparation finish line. A spreadsheet (Excel v2016; Microsoft Corp) was used for processing statistical data. Results of the analysis were calculated as mean and frequency. Results: In the impressions taken with Variotime, the percentage of the successful impression is 95% (Criteria I - II). Only one impression was found unacceptable (criteria III). In impressions with Spirias, the percentage of successful impressions is 100% (Criteria I - II). No impression was found unacceptable (criterion III). Conclusion: The quality of impressions of both brands Polyvinyl siloxane impression materials revealed a high rate (97.5%) For more precise results, many new studies were needed on different Polyvinyl siloxane impression materials.
Investigating the factors that affect the frequency of visits due to corneal foreign bodies
Authors: Taha Ayyildiz , Yucel Ozturk
Published: August 2020

Introduction: The purpose of this study is to show whether or not there is a relationship between number of visits in shipyard workers who visit clinics with complaints of foreign bodies in their cornea and parameters of working hours, duration of working in years, time of working without a break and age. Methods: All patients who visited the Emergency Service of the Ahi Evran University Research and Training Hospital between 1 March 2018 and 31 March 2019 with complaints of corneal foreign bodies were examined based on their number of visits in the last one year, daily hours of work, duration of working in years, time of working without a break and age. While corneal foreign body traumas for up to 3 times in the last one year were included in one group, those that were experienced for 4 times or more frequently were included in the other group. Results: 140 male patients were included in the study. While 67 of the participants were included in the group of patients with corneal foreign body traumas for up to 3 times in the past year, 73 were included in the group of patients with corneal foreign body traumas for 4 times or more frequently in the past year. There was a statistically significant relationship between experiencing corneal foreign body traumas for 4 times or more frequently per year and more daily working hours, longer times of working without a break, short working period and younger age (p-value: < 0.001). Conclusion: Corneal foreign bodies are eye injuries that may lead to loss of sight or reduced sight and are associated with loss of labor and increased treatment costs. In our study, among the patients who came up with complaints of corneal foreign body traumas for 4 times or more per year, the risk factors was observed to consist of long daily working hours, long time of working without a break, shortness of the time of starting work and early age.
Surgical treatment of cardiac tamponade developed in two patients with terminal stage lung cancer
Authors: Destan Bugra , Ozcan Sedat
Published: August 2020

Introduction: Although tamponade due to pericardial effusion that develops in advanced stage lung cancer is rare, it is a life-threatening complication. Case report: 59 and 72 years old 2 female patients diagnosed with cardiac tamponade were hospitalized in Cardiology Clinic of Balækesir State Hospital. Massive pericardial effusion that caused diastolic collapse of right ventricle was detected in their echocardiographies. Inoperable lung cancer was diagnosed as a result of bronchoscopy performed due to pathologies observed in their radiograms. Despite repeated pericardiocentesis, fluid continued to accumulate rapidly. Hence, pericardioperitoneal window was formed through subxiphoid route to obtain continuous drainage in both patients. Significant pericardial effusion didn't develop in echocardiographies in the 2nd and the 6th-month post-operative follow-ups. Conclusion: Subxiphoid pericardioperitoneal window is a simple, safe and effective surgical procedure. It may be performed in some patients with malignant tamponade
An annotated bird checklist for Gam island, Raja Ampat, including field notes on species monitoring and conservation
Authors: Schrader Julian , Parsch Christoph , Moeljono Soetjipto , Kalor John D , Hofmann Tim , Weinrich Christoph , Mühlberger Fabian , Stinn Christina , Mühlenberg Michael , Sattler Cornelia
Published: August 2020

Species checklists are a fundamental component of biodiversity research. They foster understanding of species distributions and habitat preferences, thus reducing gaps of knowledge in geographical occurrences of species. Especially in light of the limited availability of data on species distributions for Tanah Papua, an increasing scientific focus on the region is crucial to foster and refine the knowledge of species occurrences and to inform potential conservation planning. Despite a strong focus on conservation of Raja Ampat´s marine areas, surprisingly few studies have focused on the terrestrial biodiversity of the archipelago. As a consequence, detailed species checklists are largely missing. Here, we provide a preliminary bird species checklist for the island of Gam and its surrounding islands, located in the central Raja Ampat archipelago. During nine sampling periods between 2013 and 2019, we recorded 132 bird species in six distinct habitat types. Of the detected species, six are considered threatened by IUCN Red List criteria. We further recorded three new species for Gam Island, thereby expanding their known extent of occurrence.
SSAAR: An enhanced System for Sentiment Analysis of Arabic Reviews
Authors: Manal Nejjari  , Abdelouafi Meziane
Published: August 2020

Sentiment Analysis, or Opinion Mining, has recently captivated the interest of scientists worldwide. With the increasing use of the internet, the web is becoming overloaded by data that contains useful information, which can be used in different fields. In fact, many studies have shed light on Sentiment Analysis of online data in different languages. However, the amount of research dealing with the Arabic language is still limited. In this paper, an empirical study is led to Sentiment Analysis of online reviews written in Modern Standard Arabic. A new system called SSAAR (System for Sentiment Analysis of Arabic Reviews) is proposed, allowing computational classification of reviews into three classes (positive, negative, neutral). The input data of this system is built by using a proposed framework called SPPARF (Scraping and double Preprocessing Arabic Reviews Framework), which generates a structured and clean dataset. Moreover, the provided system experiments two improved approaches for sentiment classification based on supervised learning, which are: Double preprocessing method and Feature selection method. Both approaches are trained by using five algorithms (Naïve Bayes, stochastic gradient descent Classifier (SGD), Logistic Regression, K-Nearest Neighbors, and Random Forest) and compared later under the same conditions. The experimental results show that the feature selection method using the SGD Classifier performs the best accuracy (77.1%). Therefore, the SSAAR System proved to be efficient and gives better results when using the feature selection method; nevertheless, satisfying results were obtained with the other approach, considered consequently suitable for the proposed system.
Effects of Ketogenic Diet on Corneal Kindling Mouse Model
Authors: Andreeva-Gateva P. , Bakalov D. , Sabit Z. , Tenchov B.
Published: August 2020

Aim/objective: Corneal kindling mouse test is a model of decreasing the seizure threshold after repetitive subchronical electrical stimuli. Ketogenic diet (KD) is used for the treatment of children with pharmacoresistant epilepsy since more than 100 years. Surprisingly, very few studies testing the effect of the KD in corneal kindling test were published. The aim of this study was to evaluate the effect of the KD on the seizure activity in corneal kindling mouse model.

Methods: 50 adult male ICR mice (25-35 g) were randomly distributed in four groups, as follows: group 1 – standard diet (SD) treated controls (n = 10); group 2 – KD treated (n = 10), group 3 – kindled mice on SD treatment (n = 15); group 4 – kindled mice on KD treatment (n = 15). The diet was started at day one, one week before the start of the kindling and it continued for four weeks. At the end of the experiment, kindled mice were challenged with 6-Hz test and their behavior was assessed.

Results: In kindled mice on SD the seizure latency time significantly decreased at days 14, 21 and 28. Mice on KD displayed relatively constant seizure latency during the experiment. At day 28 the duration of provoked seizures was statistically higher as compared with mice on KD (median values 101 vs 2 sec, p < 0.05). Blood ketone levels were statistically higher (p < 0.05), and blood glucose level was statistically lower (p < 0.05) in the KD treated group, as compared with SD treated mice.

Conclusion: KD effectively suppressed the seizure activity in corneal kindling test. Further studies are needed for elucidating the molecular mechanisms which can explain this effect.
Solubility of Calcium Silicate Based Cements – a Comparative Study
Authors: Kouzmanova Y. , Dimitrova I.
Published: August 2020

Calcium silicate based cement is a group of biomaterials, based on Portland cement. Its physicochemical properties such as solubility are of the utmost importance. It should have low solubility in tissue fluid since the dissolution of materials may lead to treatment failure.

The aim of this study is to evaluate the solubility of five calcium silicate cements after being placed in distilled water for a period of 28 days.

Material and methods: The purpose of this study was to compare solubility of a four new calcium silicate-based cements, such as: gray MTA Angelus; white MTA Angelus; BioAggregate and Biodentine with conventional mineral trioxide aggregate White ProRoot. Solubility is evaluated using standardized samples of materials, which are weighed before and after 28-day immersion in distilled water.

Results: The lowest solubility is found at White ProRoot and the significantly highest solubility – at Biodentine.
Evaluation of phenolic contents and antioxidant activities of some medicinal plants growing in Algerian Aurès Mountains
Authors: Bouguerra Ali , Djebili Samah , Zouaoui Nassim , Barkat Malika
Published: August 2020

The objective of this study is to evaluate the antioxidant activities of six medicinal plants growing in Algerian Aurès Mountains. Total phenolic and flavonoids contents were measured using colorimetric methods, and the antioxidant capacities were evaluated using the DPPH radical scavenging and β-carotene bleaching tests. Juniperus phoenica L. had significantly the higher total phenolic compounds (53.6±3.86 mg GAE.g−1 DM) (p<0.05); followed by Romarinus officinalis L. (26.1±3.15 mg GAE.g−1 DM) and Artemisia campestris L. (20.5±1.99 mg GAE.g−1 DM). Artemisia campestris L. had significantly the higher flavonoid contents (11.1±0.56 mg QE.g−1 DM) than other studied plants (p<0.05). The best antiradical activity was observed in Thymus algeriensis extracts (EC50=11.1±0.33 µg.ml−1) and Romarinus officinalis L. (EC50=15.3±0.9 µg.ml−1). β-carotene bleaching test showed that the herbs’ phenolic compounds Antioxidant Activity (AA%) value was found in the range of 64-84%, whereas that of the standard antioxidant ascorbic acid was 51±2.4%. The present results indicate that medicinal plants from the Algerian Aurès mountains could be explored in food and pharmaceutical industries for development of natural’s antioxidant agents.
Developing Undergraduate Students’ Teaching Competences
Authors: Nagy Emese K.
Published: August 2020

Introduction:
The goal of this paper is to show how the undergraduate students are able to differentiate among learning-centered, learner-centered, feedback-centered and community-centered knowledge acquisitions. We wanted them to recognize which method is used by the teacher and how each method influences the primary school pupils’ knowledge acquisition.

Methods:
We chose the video analyzing technique to make the students recognize different learning organizational methods.

Results:
The results of the study suggest that the observation helped the undergraduate students understand the aims, tasks and techniques of teaching and organizing classroom work. They realized that this type of analysis helps them develop their own teaching strategies.

Discussion:
Drawing on the results it is not possible to be a “good teacher” without obtaining and continuously maintaining a high level of professional knowledge, whose important element might be the Complex Instruction method and the recognition of the knowledge acquisition methods in the classroom.

Limitations:
This study was limited to only undergraduate students who attended the study voluntarily. The sampling was confined to 46 participants.

Conclusion:
The students are able to spot the teacher’s activities that support pupils’ learning. They recognized the positive impact of generating debate among the pupils on the development of their skills.
Mouse dynamics based user recognition using deep learning
Authors: Antal Margit , Fejér Norbert
Published: August 2020

Behavioural biometrics provides an extra layer of security for user authentication mechanisms. Among behavioural biometrics, mouse dynamics provides a non-intrusive layer of security. In this paper we propose a novel convolutional neural network for extracting the features from the time series of users’ mouse movements. The effect of two preprocessing methods on the performance of the proposed architecture were evaluated. Different training types of the model, namely transfer learning and training from scratch, were investigated. Results for both authentication and identification systems are reported. The Balabit public data set was used for performance evaluation, however for transfer learning we used the DFL data set. Comprehensive experimental evaluations suggest that our model performed better than other deep learning models. In addition, transfer learning contributed to the better performance of both identification and authentication systems.
Modeling reactive magnetron sputtering: a survey of different modeling approaches
Authors: Madarász Rossi Róbert , Kelemen András , Kádár Péter
Published: August 2020

The paper focuses on providing an insight into the current state of computational modeling regarding reactive magnetron sputtering systems. A detailed compilation of developed models is gathered and grouped into categories based on the phenomena being modeled. The survey covers models developed for the analysis of magnetron discharges, particle-surface interactions at the target and the substrate, as well as macroscopic models. Corresponding software packages available online are also presented. After gaining the necessary insight into the current state of research, a list of the most challenging tasks is given, comparing diffierent approaches, that have been used to combat the encountered difficulties. The challenges associated with modeling tasks range from analytical complexity, mathematical know-how used for model approximation and reduction, as well as optimization between computational load and result accuracy. As a conclusion, the future challenges are compiled into a list and a probable direction in modeling is given, that is likely to be further pursued.
Assessing the effect size of users’ consciousness for computer networks vulnerability
Authors: Bognár László , Joós Antal , Nagy Bálint
Published: August 2020

In this paper the conditions and the findings of a simulation study is presented for assessing the effect size of users’ consciousness to the computer network vulnerability in risky cyber attack situations at a certain business. First a simple model is set up to classify the groups of users according to their skills and awareness then probabilities are assigned to each class describing the likelihood of committing dangerous reactions in case of a cyber attack. To quantify the level of network vulnerability a metric developed in a former work is used. This metric shows the approximate probability of an infection at a given business with well specified parameters according to its location, the type of the attack, the protections used at the business etc. The findings mirror back the expected tendencies namely if the number of conscious user is on the
Collatz conjecture revisited: an elementary generalization
Authors: Gutierrez Amauri
Published: August 2020

Collatz conjecture states that iterating the map that takes even natural number n to

n
2

{n \over 2}

and odd natural number n to 3n + 1, will eventually obtain 1. In this paper a new generalization of the Collatz conjecture is analyzed and some interesting results are obtained. Since Collatz conjecture can be seen as a particular case of the generalization introduced in this articule, several more general conjectures are also presented.
Restrained domination in signed graphs
Authors: Mathias Anisha Jean , Sangeetha V. , Acharya Mukti
Published: August 2020

A signed graph Σ is a graph with positive or negative signs attatched to each of its edges. A signed graph Σ is balanced if each of its cycles has an even number of negative edges. Restrained dominating set D in Σ is a restrained dominating set of its underlying graph where the subgraph induced by the edges across Σ[D : V \ D] and within V \ D is balanced. The set D having least cardinality is called minimum restrained dominating set and its cardinality is the restrained domination number of Σ denoted by γr(Σ). The ability to communicate rapidly within the network is an important application of domination in social networks. The main aim of this paper is to initiate a study on restrained domination in the realm of different classes of signed graphs.
The role of Helicobacter pylori in development of lesion in oral cavity
Authors: Popovska Mirjana , Osmani-Jusuf Žana , Radojkova-Nikolovska Vera , Evrosimovska Biljana , Mitić Kristina , Nikolovski Bruno , Spasovska Ana , Rusevska Biljana
Published: August 2020

Background/Aim: to examine the connection of H. Pylori in saliva and biopsy material with oral lesions. Material and Methods: Sixty patients with dyspeptic complaints were followed up at the Clinic for Gastroenterology at University Medical Clinical Centre in Skopje, divided into two groups: first group consisted of 30 patients without presence of H. pylori, and the second group with 30 subjects and presence of H. pylori. The presence or absence of H. pylori has been ascertained after endoscopic examination-gastroscopy, and implemented urease test (CLO-test). All patients were clinically followed in order to determinate mouth burning, recurrent aphthous stomatitis (RAS), acid taste and lingual papillary hyperplasia according to Cohen and Proctor. The presence of H. pylori in saliva has been ascertained before endoscopic examination, after chewing Orbit gum without sugar for 1 min using by Pronto dry test. Determination of H. pylori in biopsy material has been ascertained by rapid urease test (RUT). Results: At 30 patients with dyspeptic complaints and presence of Helicobacter pylori, 16 patients (53,33%) had lingual papillary hyperplasia, acid taste, burning mouth and recurrent aphthous stomatitis (RAS). At 4 patients (13,33%) was confirmed acid taste, and also at 4 patients (13,33%) burning mouth. At 2 patients (6,67%) was confirmed lingual papillary hyperplasia, burning mouth, and recurrent aphthous stomatitis (RAS). At the same time, at 2 patients (6,67%) was confirmed burning mouth, and recurrent aphthous stomatitis (RAS), until at 1 patient (3,33%) lingual papillary hyperplasia, as at 1 patient (3,33%) lingual papillary hyperplasia and acid taste. At patients without presence of Helicobacter pylori but with dyspeptic complaints, was confirmed burning mouth in 14 patients (46,67%), lingual papillary hyperplasia, burning mouth, and acid taste in 7 patients (23,33%); in 3 patients (10,00) lingual papillary hyperplasia, burning mouth, and in 2 patients (6,67%) was confirmed recurrent aphthous stomatitis (RAS). Acid taste was registered in 2 patients (6,67%), and also lingual papillary hyperplasia in 2 patients (6,67%). There was a significant differences in clinical aspect between the patients with and without presence of H. pylori, for p< 0,01(p= 0,002); Pearson Chi-square= 20,10 i and p<0,05(p= 0,01). Conclusions: H. pylori in saliva and biopsy material detected with CLO test are reason for oral lesions at patients with dyspeptic complaints who have the presence of H. pylori.
Antifungal effect of silver nitrate on prosthodontic dentures
Authors: Sertac Ozdogan , Gumusok Mustafa , Yucel Mihriban , Dinc Bedia , Mizrak Muzaffer , Gungormus Mustafa
Published: August 2020

Background/Aim: Although there are studies about the antimicrobial activity of silver, there is no study evaluating it as a denture disinfectant. The purpose of this study was to explore the effectiveness of 6 disinfectant solutions (50% vinegar, 100% vinegar, 1% silver nitrate, 2% silver nitrate, %1 sodium hypochlorite, 0,12% chlorhexidine digluconate) in the disinfection of acrylic resin specimens contaminated in vitro by Candida albicans, as measured by residual colony-forming unit (CFU). Material and Methods: 66 pieces of 10mmx2mm acrylic resin disc samples were prepared and incubated in 1x106 cell/ml suspension of C. albicans ATCC 18804 for 24 h (one of them as a control, n=11/group). The specimens were then transferred into tubes containing 10 ml of the tested disinfectants and kept for 10 minutes in the disinfectant. After washing with saline, the specimens were vortexed to remove the microorganisms adhered to the surfaces. Colony counting of the collected microorganisms was performed on Sabouroud dextrose medium using 10-1, 10-2 and 10-3 dilutions. The results were analysed using Kruskal-Wallis and Mann-Whitney U tests (p<0,05). Results: The results showed that 1% sodium hypochlorite, %1 silver nitrate and 2% silver nitrate were the most effective against Candida Albicans (p<0,05), followed by 100% vinegar, 0,12% chlorhexidine digluconate and 50% vinegar (p<0,05). Conclusions: Within the boundaries of this study, we conclude that 1% silver nitrate is a promising alternative disinfectant to 1% sodium hypochlorite and performs better compared to 0,12 % chlorhexidine gluconate, 50% and 100% vinegar.
Unilocular radiolucent lesions of the jaws: A retrospective panoramic and cone beam computed tomography evaluation
Authors: Cetin Bilgun , Icoz Derya , Akgunlu Faruk
Published: August 2020

Background/Aim: The aim of this study was to evaluate and compare the imaging characteristics of common, radiolucent, unilocular, intraosseous lesions of the jaws using both panoramic radiography and cone beam computed tomography (CBCT); also, to evaluate sufficiency of panoramic radiography in determining characteristic features of jaw lesions. Material and Methods: Retrospectively selected images of 57 patients with histopathology results were evaluated by two oral radiologists. The lesions were assessed based on shape, location, borders, relationship with the mandibular canal, presence of destruction of cortical bone, and expansion of cortical bone, and presence of an unerupted tooth related to the lesion. In addition, the widest areas of the lesions were measured. A total of 9 (15.8%) odontogenic keratocysts, 9 (15.8%) apical granulomas, 24 (42.1%) radicular cysts, 12 (21.0%) dentigerous cysts and 3 (5.2%) central giant cell granulomas in 57 patients (20 women, 37 men) with a mean age of 36.93 ± 17.96 years were included. Fifty-seven CBCT and 56 panoramic images of these patients were evaluated. Results: Twenty-nine (50.8%) lesions were in the mandible and 28 (49.2%) in the maxilla. A statistically significant difference was determined for the areas in CBCT images (p=0.007). Conclusions: Panoramic radiography is not as successful as CBCT in demonstrating some characteristics of the lesions, such as expansion and destruction. The area measurements may be beneficial in establishing the differential diagnosis of the lesion.
The relationship of oral mucosal lesions and removable prostheses: Quantitative and qualitative study
Authors: Özkan Gökhan , Yasin Köksal , Okyay Pinar
Published: August 2020

Background/Aim: The aim of this study was to determine the development and distribution of denture-related oral mucosal lesions in patients using removable prosthesis by using quantitative and qualitative research methods. Material and Methods: A 21-item structured questionnaire form was used. Then, patients were evaluated for the presence and types of oral lesions. In the qualitative phase of the study, two focus group interviews were conducted with volunteers among participants of the quantitative part. The quantitative data were first evaluated by the Kolmogorov-Smirnov test for normal distribution. Chi-square test, Mann Whitney U test, t-test and logistic regression were used for statistical evaluation. Qualitative data analysis was manually performed by the content analysis method. Results: This study included 171 subjects. When the participants were classified as lesion and non-lesion groups, cigarette use and duration of prosthesis use were higher in patients with lesions. Denture-related lesions occurred in 46.2% of the participants; prosthetic stomatitis in 23.9% of the denture-related lesions, traumatic ulcer in 12.9%, epulis fissuratum in 9.9%, and angular cheilitis in 5.8%. Of the participants with lesions 72% (n=57) had a single lesion, while 28% (n=22) had multiple lesions. The duration of prosthesis use was longer in patients with lesions (p=0.022). The main themes determined in the qualitative stage were identified as "views on prosthesis use", "features related to prosthesis care", "information sources on prosthesis" and "proposals of participants". Conclusions: Current study shows that denture-related lesions are very common. Patients should be informed in detail and adequately by physicians and specialized nurses in this regard at every stage of treatment. A universal protocol will be very helpful to ensure that patients are provided with all necessary information about wearing dentures, their maintenance and the importance of regular check-ups. Informative meetings should be organized for wider patient groups in which patients may also interactively participate in, and studies to increase oral health literacy should be conducted. The cross-sectional assessment is not enough for risk assessment due to its nature and only declaration based assessment might miss the relations. Follow-up studies combined with qualitative studies with different approaches are needed.
On the gaps between q-binomial coefficients
Authors: Luca Florian , Manganye Sylvester
Published: August 2020

In this note, we estimate the distance between two q-nomial coefficients

(

k
n

)

q

-

(

k
′

n
′

)

q

{\left( {_k^n} \right)_q} - {\left( {_{k'}^{n'}} \right)_q}

, where (n, k) ≠ (n′, k′
) and q ≥ 2 is an integer.
Differentially expressed homologous genes reveal interspecies differences of Paragonimus proliferus based on transcriptome analysis
Authors: Li S. H. , Li S. D. , Li H. J. , Li J. Y. , Xu J. J. , Chang G. J. , Yang L. J. , Wang W. Q. , Zhang Y. L. , Ma Z. Q. , He S. M. , Wang W. L. , Huang H. L.
Published: August 2020

Paragonimus proliferus (P. proliferus), one of 46 Paragonimus species registered in the National Center for Biotechnology Information database, may be much more widely distributed in Southeast Asia than previously thought, as its reported natural foci have increased in the past decades. However, very little is known about its molecular biology, especially at the transcriptome level. For the first time, the transcriptome of this species was sequenced and compared with four other common Paragonimus species, namely Paragonimus skrjabini, Paragonimus kellicotti, Paragonimus miyazakii, and Paragonimus westermani, to predict homologous genes and differentially expressed homologous genes to explore interspecies differences of Paragonimus proliferus.

A total of 7393 genes were found to be significantly differentially expressed. Of these, 49 were considered to be core genes because they were differentially expressed in all four comparison groups. Annotations revealed that these genes were related mainly to “duplication, transcription, or translation”, energy or nutrient metabolism, and parasitic growth, proliferation, motility, invasion, adaptation to the host, or virulence. Interestingly, a majority (5601/7393) of the identified genes, and in particular the core genes (48/49), were expressed at lower levels in P. proliferus. The identified genes may play essential roles in the biological differences between Paragonimus species. This work provides fundamental background information for further research into the molecular biology of P. proliferus.