bluuebunny/crossref_metadata_2025 huggingface dataset:
A Privacy-Preserving Mobile LBS System for Small Businesses
Authors: Ahmed Ahmed
Published: February 2021

Small-to-medium businesses are always seeking affordable ways to
advertise their products and services securely. With the emergence of
mobile technology, it is possible than ever to implement innovative
Location-based Advertising (LBS) systems using smartphones that preserve
the privacy of mobile users. In this paper, we present a prototype
implementation of such systems by developing a distributed
privacy-preserving system, which has parts executing on smartphones as a
mobile app, as well as a web-based application hosted on the cloud. The
mobile app leverages Google Maps libraries to enhance the user
experience in using the app. Mobile users can use the app to commute to
their daily destinations while viewing relevant ads such as job openings
in their neighborhood, discounts on favorite meals, etc. We developed a
client-server privacy architecture that anonymizes the mobile user
trajectories using a bounded perturbation strategy. A multi-modal
sensing approach is proposed for modeling the context switching of the
developed LBS system, which we represent as a Finite State Machine (FSM)
model. The multi-modal sensing approach can reduce the power consumed by
mobile devices by automatically detecting sensing mode changes to avoid
unnecessary sensing. The developed LBS system is organized into two
parts: the business side and the user side. First, the business side
allows business owners to create new ads by providing the ad details,
Geo-location, photos, and any other instructions. Second, the user side
allows mobile users to navigate through the map to see ads while
walking, driving, bicycling, or quietly sitting in their offices.
Experimental results are presented to demonstrate the scalability and
performance of the mobile side. Our experimental evaluation demonstrates
that the mobile app incurs low processing overhead and consequently has
a small energy footprint.
Long standing hypercalcemia in a 78-years old woman
Authors: Kiriakopoulos Andreas , Linos Dimitrios
Published: February 2021

A 78 years-old woman was found with worsening hypercalcemia, osteopenia
and memory loss during the past 2 years. Multiple, repeated imaging
studies failed to reveal the aetiology of the primary
hyperparathyroidism. Bilateral neck exploration revealed a 4.5X2,3 cm
right superior parathyroid adenoma in an ectopic position.
Stand species composition as a key factor determining the amount of polycyclic aromatic hydrocarbons (PAHs) in forest soils
Authors: Łyszczarz Stanisław , Lasota Jarosław , Błońska Ewa
Published: February 2021

The aim of the study was to determine the effect of stand species
composition on PAHs accumulation. The study covered the soils of the
stands of the Rybnik Forest District, which are under the influence of
one of the highest deposition of industrial emissions in Europe. Pine,
pine-oak and oak stands growing in the same soil conditions were
selected for the study. Samples for further analyses were collected from
the organic horizon, from the humus mineral horizon and from the mineral
horizon. Organic C content, N content, pH, alkaline cation content, as
well as microbiological biomass of C, N, extracellular and intracellular
enzyme activity were determined in the soil samples. PAH content was
determined in the soil samples. Additionally, the soil organic matter
fractions were determined: free light fraction (fLF), occluded light
fraction (oLF) and mineral associated fraction (MAF). Pine stand soils
were characterized by the highest average PAHs content. The oak stand
soils were characterized by the lowest PAHs accumulation and high
enzymatic activity. The study confirms the important role of the stand
species composition in shaping the quality and quantity of SOM and soil
acidification, which in turn is reflected in microbial activity and PAHs
accumulation in forest soils. PAHs accumulation in forest soils is
related to the fractional composition of SOM, which is the effect of the
influence of species composition through the supplied aboveground and
belowground biomass. A strong correlation between the PAH content and C
content of the light soil fraction of OM was noted.
Trait-based adaptability of Phragmites australis to the effects of soil water and salinity in the Yellow River Delta
Authors: Zhou Dayou , Ni Yuehan , Yu Xiaona , Lin Kuixuan , Du Ning , Liu Lele , Guo Xiao , Guo Weihua
Published: February 2021

Phragmites australis is the dominant species in the Yellow River Delta
and plays an important role in wetland ecosystems. Ecological responses
of the P. australis community to soil properties were investigated in 96
areas along the coastal-inland regions in the Yellow River Delta of
China. The aim was to evaluate the relationship between phenotypic
variation and environmental factors, reveal which functional traits
could well respond to changes in electrical conductivity and soil water
content, and the ecological strategies of P. australis. Within the range
of soil water content (9.39–36.92%) and electrical conductivity
(0.14–13.29 ms/cm), the results showed that the effects of soil water
content and salinity were not equally important for the characterization
of the morphological and physiological variability, and that plant
functional traits including leaf traits and stem traits responded more
strongly to soil salinity than soil water content. Our results suggested
that salinity leads to reduced average height, specific leaf area, leaf
area, and base stem diameter, but increased leaf water content and leaf
thickness. The relationships between functional traits and electrical
conductivity were generally linear and logarithmic. The coefficients of
variation of morphological traits showed more phenotypic plasticity than
the physiological traits. Salinity also led to the stress
tolerator/competitor-stress tolerator (S/CS) strategies of P. australis;
with the decrease of environmental stress, the main strategy gradually
moved to the competitor (C) strategy, making P. australis the dominant
species in the Yellow River Delta. KEYWORDS: Soil water content,
Electrical conductivity, Functional traits, Plasticity, Life strategies.
Is the adolescent's esthetic concern associated with anterior occlusal conditions or the malocclusion severity level?
Authors: de Melo Kaarlye C. P. Andrade , Vedovello-Filho Mario , Furletti-Góis Vivian F. , de C. Meneghim Marcelo , Vedovello Silvia A. S.
Published: February 2021

Objectives

To assess the esthetic impact of anterior occlusal conditions and malocclusion severity levels.

Materials and Methods

A population-based cross-sectional study of 700 adolescents aged 15 to 19 years was conducted. The Oral Aesthetic Subjective Impact Scale (OASIS) was used to evaluate the subjective esthetic impact of malocclusion. The Dental Aesthetic Index (DAI) criteria were used to diagnose the anterior occlusal characteristics in isolation and the severity levels of malocclusion. The variables with P < .20 in the individual analyses were tested in multiple logistic regression models, and those with P < .10 remained in the model. The adjusted odds ratio (OR) was estimated with a 95% confidence interval (CI).

Results

Of the adolescents, 42% showed negative self-perception of malocclusion. In addition, 15.4% of adolescents had severe malocclusion (DAI 3) and 18.9% very severe malocclusion (DAI 4). Crowding and spacing were shown to be 2.90 (CI: 2.06–4.09) and 2.53 (CI: 1.65–3.86) times, respectively, more likely to cause a negative esthetic impact in adolescents (P < .05). In addition, adolescents with orthodontic treatment need (DAI 2, 3, and 4) were more likely to report a negative esthetic impact (P < .05).

Conclusions

Anterior crowding and spacing are the conditions that most influence the esthetic concern of adolescents. Adolescents with very severe malocclusion and higher orthodontic treatment need are more likely to report a negative esthetic impact.
Predictors of patient compliance during Class II division 1 malocclusion functional orthodontic treatment
Authors: Stefanovic Neda Lj , Uhac Mia , Brumini Martina , Zigante Martina , Perkovic Vjera , Spalj Stjepan
Published: February 2021

Objectives

To determine factors that could predict Class II/1 malocclusion patient compliance during functional treatment.

Materials and Methods

The sample consisted of 77 subjects (aged 11–13 years; 47% girls) presenting with Class II/1 malocclusion. Inclusion criteria were distal molar relationship, overjet greater than 5 mm, and confirmed pubertal growth spurt. Removable functional appliances (62% Twin Block [TB], 38% Sander Bite Jumping [BJ]) with built-in maxillary expansion screws were used. Follow-up period was 1 year. Patients and parents independently filled out the Child Perception Questionnaire, Parental/Caregiver Perception Questionnaire, and Family Impact Scale to assess emotional and social well-being, oral symptoms, functional limitations, parental emotions, family activities, conflicts, and financial burden as possible predictors of compliance during treatment. Sex, overjet, and appliance type were also analyzed.

Results

There were more noncompliant than compliant patients (55% vs 45%). Parental perception of altered emotional well-being of their children was the strongest predictor, increasing compliance odds 3.4 times (95% confidence interval [CI], 1.2–9.4; P = .017). Patients were 3.2 times (95% CI, 1.1–9.3; P = .033) more likely to cooperate with TB compared with BJ appliance. OJ ≥ 8 mm increased compliance odds 3.1 times (95% CI, 1.0–9.4; P = .044).

Conclusions

Parental perception of child's emotional well-being alteration, severity of malocclusion, and type of appliance are major predictors of compliance. Psychosocial issues and oral function limitations reported by children and family impact are of negligible influence.
To Assess the Influence of Habitual Mouth Breathing and its Associated Taste Alterations
Authors: Singh Haramandeep
Published: February 2021

Background: If the sense of taste is impaired, it may often negatively affect patient’s food intake, nutritional status and consequently health condition because it provides information about the food we eat. Aim and Objective: To study the influence of habitual mouth breathing and its associated taste alterations and also investigate the cause of this influence. Method and Methodology: Total eighty subjects were taken out of which forty healthy volunteers (male-26; female14) participated in this study. The mean age of these subjects was 25.6± 1.9 (SD) years (age range, 19-36 years). Furthermore forty subjects (male-21; female-19) with a habit of mouth breathing (MB) were taken. The mean age of these subjects was 29.5± 3.4 (SD) years (age range, 19-40 years). A taste threshold is the minimum concentration at which taste sensitivity to a particular substance or food can be perceived. The subjects were told to avoid eating or drinking anything, with the exception of water for 3 hours before evaluation. In addition, a complete Ear, Nose, Throat examination was performed. We carried out the chemical method of gustatory testing by using filter paper taste strips. This is a validated gustatory test, used to measure the gustatory sensitivity of the tongue for 5 tastants; sweet, sour, salty, bitter, and umami. We measured the recognition thresholds only on one side on the tongue either left or right. There are many factors that can alter taste senstivity. Considering these factors can help us better understand and ensure accurate sensory taste perception. Although there are a variety of factors but some that influence taste perception more than others are discussed in this study. These various effects are brought about by the many organic and inorganic constituents of saliva. In response to these variations in saliva, taste sensitivity may also fluctuate widely. Conclusion: Relationships between individual salivary constituents and certain taste substances have been explored in human psychophysical and animal experiments. However, there are many organic and inorganic salivary constituents whose effects on taste acuity have not yet been fully elucidated
Role of Oral Health Directorate-Ministry of Health-Khartoum State-Sudan during COVID-19 Pandemic-May-2020
Authors: Gabani Wisam
Published: February 2021

The outbreak of COVID19 started from Wuhan, China, last December 2019 and have become a major challenging public health problem not only China but also all the countries around the world. On January 30, 2020, the World Health Organization announced that this outbreak had constituted a public health emergency of international concern. Our traditions in Sudan have contributed a lot to the spread of the virus. The social life of our people is so much connected and there are some practices that they need to drop. The health system in Sudan is suffering a lot of problems makes it difficult to contain the situation easily. The Oral Health Directorate plays a major and leading role in reducing the pain and suffering of the patients complaining from oral and dental problems in respect to the current situation of the pandemic.
The Development of MaccabiDent Quality Measures for Oral Health
Authors: Tobias Guy
Published: February 2021

Introduction: Success depends, at least in part, on the quality of the product, quality of service, and quality of infrastructure. Lack of quality measures in dentistry limits improvements in oral health care. This article focused on developing quality measures in dentistry. Materials and Methods: Quality measures were developed and data from a three-year period were evaluated for MaccabiDent, a provider of dental services in Israel, treating 650,000 patients a year. The following 4 measurements were examined: The percentage of orthodontic patients who underwent a bi-annual dental examination with x- rays and were treated by a hygienist; The percentage of children aged 3-12, in a B or C risk group that had a fluoride application twice yearly; Continuing Education for dental care providers; Implant success rate. Results: 43.3% of patients had at least one dental examination with x-rays. 76.5% of the children had a fluoride application at least twice a year, with an average of 58.9% in all clinics. 13.8% of care givers reported participation in Continuing Education courses. Success rate of implants was 99%. Discussion: Our findings, based on three years of data, will provide the foundation for the development of measures that will improve quality in all 53 dental clinics of the Health Dental Organization (HDO). Conclusion: The most important outcome of this article is to show the importance of determining and measuring quality variables which might serve as a lead for a national index.
Observation on the Analgesic Effect of Bilateral Inferior Alveolar Nerve Block Combined With Parecoxib Sodium for Mandibular Orthognathic Surgery
Authors: Lin Jie
Published: February 2021

Background: To compare the analgesic effect and safety of bilateral inferior alveolar nerve block combined with parecoxib sodium analgesia and simple intravenous analgesia pump in analgesia after orthognathic surgery. Methods: Forty patients with simple ascending sagittal split osteotomy and ankle plasty were randomly divided into the experimental group and the control group, with 20 patients in each group. The experimental group received 2 ml 1% on both sides. Ropivacaine was treated with inferior alveolar nerve block anesthesia. Immediately after surgery, parecoxib sodium 40 mg was intravenously administered. The control group was given an intravenous analgesia pump for analgesia. Pain intensity (VAS pain score) and Ramsay sedation score were recorded at 2h, 4h, 8h, 24h, 48h after operation, and the incidence of postoperative adverse reactions was observed. Results: There was no significant difference in pain intensity and Ramsay sedation score between the two groups at each time point (P>0.05). During the analgesic treatment, the incidence of nausea and vomiting (P=0.046) in the experimental group was significantly lower than that in the control group (P<0.05). Conclusion: Bilateral inferior alveolar nerve block combined with parecoxib sodium analgesia and simple intravenous analgesia pump are effective for analgesia after mandibular orthognathic surgery, but the incidence of adverse reactions is significantly lower, more suitable for Analgesia after mandibular orthognathic surgery.
Análisis del aspecto educativo-artístico de Claudio Vásquez a través de la psicología del color en once pinturas de su creación en el periodo de 1987 a 1994
Authors: Vásquez Martínez Claudio Rafael , González González Felipe Anastacio
Published: February 2021

El objeto de esta investigación fue analizar —con base en la psicología del color— el aspecto educativo-artístico de 11 pinturas creadas por Claudio Vásquez entre 1987 y 1994. Para cumplir con este objetivo, en primera instancia, se aplicaron elementos del test de Lüscher (1982) a cada una de las pinturas para después generar un análisis y una conclusión. Esta investigación procuró descubrir el qué de las situaciones, ya que se utilizó la técnica de análisis para determinar un objeto de exploración o una situación concreta para señalar sus características y propiedades. Como conclusión se puede indicar que en las obras estudiadas sobresalen los colores verde y azul, lo que muestra aspectos educativos de Claudio Vásquez que se asocian con una adecuada sensibilidad y comprensión, lo cual influye en una autoestima alta. Asimismo, tiende a buscar cosas nuevas que le den satisfacción, pero que no traigan consigo incomodidad o perturbación en lo corporal.
Evaluation of the Undergraduate Nursing Curriculum by Using Context, Input, Process, and Product (CIPP) Model
Authors: Çonoğlu Gülsüm , Orgun Fatma
Published: February 2021

The aim of this study is to evaluate the undergraduate curriculum of a nursing program in accordance with nursing students' and instructors' opinions by using the Context, Input, Process, and Product (CIPP) model. This is a descriptive study which was conducted between September 2017 and July 2018 with 448 students and 82 instructors of a faculty of nursing. The Student and Instructor Information Form and Nursing Undergraduate Curriculum Evaluation Form (NUCEF) were used in order to collect data. The NUCEF consists of 50 items under four sub-dimensions called the Context, Input, Process and Product. The obtained data were analyzed using the SPSS 20.0 program. The frequency, percentage, mean, and standard deviation tests were used in the data analysis. The level of satisfaction with the curriculum was found to be 4.47±2.09 for the students and 6.80±1.89 for the instructors. 42% of the students stated that they thought the program outcomes were not achieved, and 42.7% of the instructors stated they thought the program outcomes were partially achieved. When the distribution of responses of Context, Input, Process and Product sub-dimensions of the NUCEF was examined; the mean item score of the students was found to be between 2.27±1.15 and 3.83±1.06, and the mean item score of the instructors was found to be between 2.08±1.06 and 4.06±.72. Considering all the sub-dimensions of NUCEF, students think that nursing undergraduate curriculum is partially adequate, and instructors think that nursing undergraduate curriculum is adequate. To conclude, it is recommended that the current undergraduate curriculum be reviewed and regulated, continuous and systematic program evaluation and improvement studies be carried out, and program evaluation studies in nursing education be increased.
The Right to Education and Education Policies in the Context of the Transformative Effect of Digital Education Technology in the Pandemic Period
Authors: Kılıç Muharrem
Published: February 2021

'Social distance', which is the most important health precaution taken to minimize the transmission risk of Covid-19 pandemic, whose impact on our social life and institutional structures is expected to continue unpredictably, has completely disrupted the dynamics of social life. In this context, many sectors, especially education and training services, which can only be delivered in an organic social context, have had to undergo a rapid formation process through new building dynamics apart from their traditional structural elements. Leading to a crisis in education systems, the pandemic required the urgent development of new education policies, and the prevention of disruption in education through the use of the most widely available technological opportunities available locally. Our study aims to analyze the transformative effect of the 'artificial techno-social network' as the new education and training method during the pandemic period on the education paradigm. In addition, the possibilities and problems presented by the new technological equipment (some AI-based) some of which were already in use to supplement education before the pandemic will be discussed in terms of the right to education. The 'distance education' or 'online education' practices, which can be described as the digital presentation of education and training services, are the main focus of the discussion.
Perceptions about Gossip and Rumours in Academic Organizations
Authors: Atabek Ümit , Özşarlak Pınar , Şendur Atabek Gülseren
Published: February 2021

Gossip and rumour, as forms of informal communication in academic organization have attracted little research attention in the literature. This paper examines the perceptions of Turkish academics of gossip and rumours, gossip topics and their relationship with certain organizational cultural issues. A web-based questionnaire was sent to 356 academics working in the communications field. The findings revealed that gossip and rumours are quite common in academic organizations. Internal gossip and rumours are perceived to be more common than the external gossip and rumours. Gossips and rumours about the management and the personnel rights are among the top topics. On the other hand, academics generally have negative opinions about gossip and rumours. However, such negative opinions about gossip and rumours were found to decrease when the perceived organizational democracy and internal communication levels increase. It is clear that academic administrators may not cope with gossip and rumours successfully unless they improve democratic participation and internal communication.
Students' Expectations From Postgraduate Education and the Factors Affecting Course and Advisor Selection Processes: The Case of a City University
Authors: Özen Fatmanur , Altunbay Müzeyyen
Published: February 2021

Postgraduate education consisting of master's, doctorate and proficiency in arts programs is an educational process that continues according to certain criteria after undergraduate education. It is the education process through which certain specializations and doctorate qualifications are gained. In this quantitative study, the expectations of graduate students studying at Giresun University, which has a city university status in Turkey, from postgraduate education, i.e. their reasons for continuing with their postgraduate education and the factors affecting their selection of courses and advisors are investigated. With the help of a questionnaire created by the researchers in line with the opinions of the field experts, the data were collected from a group of graduate students who were attending the programs affiliated with Giresun University Graduate School of Science and Social Sciences. The results obtained from the data analyzed by using descriptive statistics, conceptual connotation and descriptive analysis show that the main expectation of the participants is to pursue an academic career. Thus, postgraduate education evokes 'academia' and 'development' the most. They are careful to choose the courses related to the field they will study and research and they mostly learn about the content of the courses by reading the course contents published electronically. In the selection of advisors, while some of the postgraduate students chose their advisor according to their academic discipline; the majority was automatically assigned an advisor without first asking for their opinions. In the two graduate schools where the research is conducted the course and advisor selection processes should be improved and the quality of the offered programs should be increased by aligning them with the student expectations from postgraduate education.
Revisiting Routing Protocols to Design Energy Aware Wireless Body Area Network
Authors: KAIM KHANI Naveed Ali Khan , Rana Ali Ahmed , Rahim Sabit , Liaqat Hannan Bin , Ahmed Saleem
Published: February 2021

Wireless body area networks (WBANs) a special type of wireless sensor networks (WSNs) in which sensor nodes to actualize continuous wearable wellbeing observing of patients are able to provide improved healthcare services in a distributed infrastructure less environments. However, the mobile node, due to less battery power, can easily suffer from the problem of energy level when control packets are transfer among nodes—a problem that can occurs by the fact that some sensor nodes may select wrong cluster head with inappropriate path and waste the resources. Although many energy efficient methods have been designed for the traditional sensor networks, there has been limited focus on incorporating WBANs into energy efficient schemes. Therefore, in order to incorporate above issue we revisit the already designed traditional energy efficient methods with cluster head selection protocols and optimal path transformation. Therefore, we encourage researchers to insert WBANs with existing methods to improve performance. However, some work has been done in WBANs that uses energy efficient methods to manage the routing issue, this research domain requires further research attention. Therefore, we discuss the current research work and purpose many future directions of research.
Comparative Study of Understory Between Exotic Monoculture Plantation (Acacia Sp.) and Adjacent Natural Sal (Shorea Robusta) Forest
Authors: Rahaman Md. Tauhidor , Gurung D. B. , Pitol Md. Najmus Sayadat
Published: February 2021

To achieve forest management goal it is important to maintain biodiversity. This paper compares understory plant species diversity between exotic monoculture plantation (Acacia auriculiformis) and adjacent natural sal (Shorea robusta) forest. A total of 35 sample plots were taken by random sampling from six patches of adjacent natural sal forest and exotic monoculture plantation. Shannon-Wiener diversity index, species richness and evenness were calculated and compared. Result revealed that, a total of 2,218 plants of 42 species were recorded in natural sal (Shorea robusta) forest. Dominant families were Apocynaceae and Verbanaceae, having three species in each family. Shannon-Wiener diversity index was 2.1 and mean species richness was 14.4. On the contrary, 2,827 plants were found from 15 species in exotic monoculture (Acacia auriculiformis) plantation study area. Dominant family was Leguminosae family. Three species were found under Leguminosae family. Shannon-Wiener diversity index was 0.86 and mean species richness was 4.47. Therefore, Shannon diversity index and richness were significantly higher in natural sal forest as compared to exotic monoculture plantation. Species evenness of natural sal forest was 0.8 and 0.6 for monoculture plantation which indicates less equitable distribution of understory vegetation in monoculture than adjacent natural sal forest. With regard to herb species, evenness was significantly lower in monoculture plantation (0.03) as compared to natural sal forest (0.52). There was no equitable distribution for the herb species under monoculture plantation. Jaccard’s similarity index showed that 36% shrub species and 30% of herb species were same in exotic monoculture plantation area and adjacent natural sal forest.
Notes on an archipelagic ethnography: Ships, seas, and islands of relation in the Indian Ocean
Authors: Mahajan Nidhi
Published: February 2021

This paper explores a mobile anthropological method, or what I call an archipelagic ethnography. This archipelagic ethnography focuses on relationality to think through not only islandness and archipelagoes—land, ship, and sea—but also considers relationality as a starting point for examining connections across space. Based on over ten years of ethnographic research among dhow sailors in the Indian Ocean, I argue that navigation, social interactions, notions of patronage, and protection alongside memories and histories of mobility draw together these multiple spaces across the Indian Ocean. Moving between dhows docked in port, on islands, and at sea, I elaborate on an archipelagic ethnographic method that is a mode of thinking relationally about different kinds of spaces and places. Taking relationality as a central point in thinking through relations between ship, land, and sea, I hope to think about the notion of society in relational terms as a starting point for an anthropological method that is attuned to both difference and connection.
SEMIOTIC STUDY ON “TUGU SI RAJA BATAK” IN SAMOSIR ISLAND NORTH SUMATERA
Authors: SINAGA TATAP HASRANI , ZAINUDDIN ZAINUDDIN , TAMBUNAN ANNA RIANA SURYANTI
Published: February 2021

The objectives of this study were to find out signs, the realization of signs in to denotative and connotative meanings, and the reasons for signs realization on Tugu Si Raja Batak in Sarimarrihit Village, Sianjur Mula-Mula sub-district, Samosir Regency. The study was conducted using a qualitative approach. The data of this study were taken from Tugu Si Raja Batak. The data of the study were statues and pictures on Tugu Si Raja Batak. The data analysis was taken by observing, interviewing, and then analyzed the data based on the theory proposed by Roland Barthes. The findings indicated that there were twenty-two signs on Tugu Si Raja Batak in four forms, namely human ornaments, animal ornaments, plant ornaments, and carving. The signs of human ornaments were the Si Raja Batak means descendants with different clans and some servants for different work. The signs of animal ornaments made to show that Si Raja Batak and his descendants used the animals around him as transportations. Then, the plant ornaments they were Lime (Pangir) and Banyan tree (Jajabi) appear because the Batak people are famous for traditional medicine that uses plants such as Lime (Pangir) and betel as medicine for sick people, possessed people, and also for offerings to their ancestors. Furthermore, in the Tugu Si Raja Batak, carvings made because the Si Raja Batak seat requires beautiful decoration and their culture to respect the kings
Legal policy of the third reich
Authors: Palamarchuk Evgenii A. , Mordovtsev Andrei Iu. , Mordovtseva Tatiana V. , Shaliapin Sergei O. , Ivanova Svetlana E
Published: February 2021

In the present study, an attempt was made to analyze the activities of "Lebensborn" (source of life), established under the auspices of SS reichsfuhrer G. Himmler, whose task was to fundamentally improve the racial characteristics of the German nation. The ultimate goal of this policy was the development of a flawless racial superman who was considered one of the most important factors in securing Nazi Germany's world domination. The Lebensborn phenomenon is considered in a broad cognitive context in the cognitive understanding of the mechanism for legitimizing Nazi legal policy, considering the characteristics of the legal and political culture of the Third Reich ideology. Using a wide range of archival documents, including the Lebensborn Charter, as well as research publications, the authors identified and analyzed the organization's main orientations and results. The special focus is on the creation in the third Reich of Lebensborn specialized parent houses, in addition, the second is considered in the context of the legitimacy of racial legal policies.
The relationship between parenting stress and quality of life (Case study: female-headed households in Isfahan, Iran)
Authors: Mohammadi Atiyeh
Published: February 2021

This study aims to identify the relationship between parenting stress and quality of life (QoL) of female-headed households in Isfahan, Iran. Materials and Methods: This is a descriptive research of correlational type. The statistical population of the study included all female-headed households in Isfahan during the first half-year of 2018. A convenient sampling method was used and 341 subjects were chosen. To collect data, the Parenting Stress Questionnaire developed by Abidin and QoL questionnaire (WHO-36) were used. Pearson Correlation Coefficient and Stepwise Multiple Regression Analysis were employed for data analysis. Findings: Results showed a significant correlation between parenting stress and quality of life of female-headed households (P<0.01). Conclusion: According to the findings, parenting stress plays a vital role in the quality of life of female-headed households.
Trends and methods of fighting cybercrime in the Russian Federation in terms of the transition to a digital economy
Authors: Dremliuga Roman I. , Korobeev Alexandr I. , Mamychev Alexey Y. , Miroshnichenko Olga I.
Published: February 2021

The article deals with the problem of combating cybercrime in the Russian Federation in the context of its transition to the digital economy. Society and the state in the 90s and early 2000s did not recognize the danger behind cybercrimes. The concept of absolute freedom of dissemination of information, which existed at the time, and other factors have led to a high increase in cybercrime today. The authors concluded that the situation changed only in the last decade, when they began to fight against cybercrime in a comprehensive manner. The article also discusses the issue of delimiting cybercrimes from related criminal acts. The Russian Federation has recognized cybercrime as the main threat to state security and the stability of society. This is reflected both in the development of criminal-legal measures to combat cybercrimes and in preventive measures of an administrative nature. Objects of the so-called critical information infrastructure received special legal protection. The article also reviewed the social danger of some cybercrimes having been already liable to criminal responsibility.
Doctrinal comprehension of cyber terrorism in the context of intensive development of information and communication technologies in the modern world
Authors: Lobach Dmitry V. , Mamychev Alexey Y. , Miroshnichenko Olga I. , Moskvych Lidiia
Published: February 2021

The paper examines the doctrinal aspects of understanding cyber terrorism as an atypical manifestation (form) of traditional terrorism updated in light of the intensive development and widespread dissemination of information and communication technologies (ICT) in the modern world. The conclusion is substantiated that cyber terrorism is a conceptually relevant concept, which is perceived either as a method of committing a terrorist act (reduced understanding), or as any crimes of a terrorist nature that are committed using information and communication technologies (broad understanding). Analysis and generalization of scientific positions allowed us to define this phenomenon of social reality as the illegal use of information and communication technologies in relation to computer information, computer systems and networks in critical segments of the state and in the private sector, which pose a risk of death, causing significant property damage or the onset of other socially dangerous consequences, with the aim of whipping up fear and tension, as well as influencing the authorities for political or other motives characteristic of the ideology of terrorism.
Pengalihan hak cipta pada jurnal nasional dan internasional: sebuah refleksi untuk pengembangan Jurnal Guidena
Authors: Irawan Dasapta Erwin , Ratodi Muhamad , Abraham Juneman
Published: February 2021

Kami mengevaluasi perjanjian Pemindahan Hak Cipta (CTA/copyrights transfer agreement) 15 jurnal kategori SINTA 1 Indonesia dan membandingkannya dengan 10 jurnal terbitan luar negeri dalam lingkup bidang ilmu yang sama. Kriteria yang digunakan dalam menelaah CTA meliputi: (1) model pengelolaan jurnal (open access atau tidak), (2) ada atau tidak CTA, dan 3) komponen Hak Cipta yang dipindahkan (sebagian atau seluruhnya). Beberapa hasil yang kami dapatkan: (1) Seluruh jurnal OA nasional menggunakan lisensi Creative Commons Attribution (CC-BY) dengan berbagai varian tanpa pengalihan hak cipta ke penerbit. (2) Ada satu jurnal nasional menggunakan lisensi ini sekaligus mengalihkan hak cipta ke penerbit, (3) Seluruh jurnal terbitan luar negeri yang dikelola oleh asosiasi profesi, universitas dan penerbit komersial memiliki keseragaman CTA. Untuk rute non OA, CTA mengalihkan hak cipta dari penulis ke penerbit (all rights reserved), sedangkan rute non OA menggunakan lisensi CC-BY-XX-YY. Ini mungkin menjadi indikasi bahwa penerbit jurnal di Indonesia perlu memahami lebih rinci tentang hak cipta, sekaligus sebagai refleksi untuk pengembangan Jurnal Guidena di masa mendatang.
On the symmetries of Lorentzian four-dimensional generalized symmetric spaces of type C
Authors: Belarbi Lakehal
Published: February 2021

We consider the four-dimensional generalized symmetric spaces of type C, equipped with a left-invariant Lorentzian metric. We completely describe its affine, homothetic and Killing vector fields. We also obtain a full classification of its Ricci, curvature and matter collineations.
Generalized semiderivations in prime rings with algebraic identities
Authors: Boua Abdelkarim , Ashraf Mohammed
Published: February 2021

Let R be a prime ring with center Z(R). Suppose that R admits a generalized semiderivation F with non-zero associated derivation d. We investigate the commutativity of a prime ring R satisfying certain identities.
A short note on harmonic functions on self-similar structures
Authors: Breckner Brigitte E.
Published: February 2021

A sufficient condition is given concerning the harmonic structure on a post critically finite self-similar structure K that ensures that harmonic functions are not zero divisors in the algebra of real-valued continuous functions on K.
The prevalence of trauma from occlusion as the aggravating factors of periodontitis
Authors: , Sunnati , ALIBASYAH Zulfan M , Rezeki Sri , Rafi'i Nurul Mustabsyirah
Published: February 2021

Trauma from occlusion (TFO) is a local factor that can exacerbate tissue inflammation in periodontitis cases. There have been many clinical studies on TFO, but the prevalence of patients is currently unknown. The purpose of this study was to determine the majority of TFO cases as a factor that aggravates periodontitis based on the medic records at Oral and Dental Hospital, Universitas Syiah Kuala, Banda Aceh, Indonesia in 2017-2019. This study used a comprehensive sampling approach to evaluate 10,532 medical records associated with periodontal disease, including factors such as age, sex, causes, and TFO treatment. Descriptive data analysis showed that from a total of 10,532 medical records, there were 391 medical records related to periodontia. A total of 194 samples matched the inclusion criteria. There were 79 TFO patients (40.7%), 3 TFO cases (1.5%), and 112 cases (57.7%) other periodontal diseases without TFO. The prevalence of TFO as a dominant factor aggravating chronic periodontitis at the Oral and Dental Hospital, Syiah Kuala University, Banda Aceh Indonesia in 2017-2019. Patients with elderly age and female sex predominantly experience periodontitis which is aggravated by TFO.KEYWORDS: Occlusal adjustment blocking method, periodontitis, Trauma from occlusion
The modification of split pontic as non-rigid connector in the management of pier abutment
Authors: , Ivana , , Syafrinani , Chairunnisa Ricca
Published: February 2021

In long-span fixed partial denture restoration, especially when pier abutment is present, a non-rigid connector as a stress breaker is indicated. The Non-rigid connector is classified into a dovetail, loop connector, split pontic, cross-pin, and wing. Split pontic is an attachment placed entirely inside the pontic, particularly indicated in the tilted abutment case, to prevent the box preparation of distal pier abutment. This case report presents A pier abutment case treated with long span porcelain fused to the metal fixed movable bridge using dovetail shaped attachment, assembling the split pontic as a non-rigid connector. Split pontic acts as the stress breaker to prevent the pier abutment acts as a fulcrum. Split pontic also transfers the shear stress to the alveolar bone, minimalizes the mesiodistal torquing of the abutment teeth, and enables individual tooth movement. The advantages of this design are preparation with minimal reduction and better esthetic outcome as the porcelain build up can be done. Thus, there is no metal exposure of the restoration. Longevity and success of fixed partial denture restoration depend on the size, shape, type, and connector position. In pier abutment cases, a non-rigid connector must be considered one of the treatment choices to restore the missing teeth and preserve the abutments.KEYWORDS: pier abutment, split pontic, non-rigid connector
Pneuma: entrepreneurial science in the fight against the COVID-19 pandemic - a tale of industrialisation and international cooperation
Authors: Mendonça José Manuel , Cruz Nuno , Vasconcelos Daniel , Sá-Couto Carla , Moreira António P. , Costa Paulo , Mendonça Hélio , Pereira Ariane , Naimi Zakaria , Miranda Vladimiro
Published: February 2021

When the COVID-19 pandemic hits Portugal in early March 2020, medical doctors, engineers and researchers, with the encouragement of the Northern Region Health Administration, teamed up to develop and build, locally and in a short time, a ventilator that might eventually be used in extreme emergency situations in the hospitals of northern Portugal. This letter tells you the story of Pneuma, a low-cost emergency ventilator designed and built under harsh isolation constraints, that gave birth to derivative designs in Brazil and Morocco, has been industrialized with 200 units being produced and is now looking forward to the certification as a medical device that will possibly support a go-to-market launch. Open intellectual property (IP), multidisciplinarity teamwork, fast prototyping and product engineering have shortened to a few months an otherwise quite longer idea-to-product route, clearly demonstrating that when scientific and engineering knowledge hold hands great challenges can be successfully faced.
Exercícios Resolvidos de Dinâmica e Sistemas Dinâmicos
Authors: Villate Jaime E.
Published: February 2021

Esta obra complementa o livro Dinâmica e Sistemas Dinâmicos. Apresenta-se a resolução de alguns dos problemas desse livro. Em alguns casos usa-se o software de computação algébrica Maxima (http://maxima.sourceforge.net) na resolução, mas os comandos usados servem também como sumário dos passos a seguir sem usar esse software. O tema central do livro é a mecânica, incluindo-se também alguns temas contemporâneos, como sistemas não lineares e sistemas caóticos. A abordagem adotada situa-se no âmbito da mecânica clássica, admitindo-se a existência de um espaço absoluto e de um tempo absoluto, independentes dos observadores. Os seis primeiros capítulos seguem o programa tradicional das disciplinas de introdução à mecânica para estudantes de ciências e engenharia, sem incluir sistemas de vários corpos em mecânica dos fluidos. O capítulo 7 é uma introdução aos sistemas dinâmicos. O capítulo 8 aborda a mecânica lagrangiana e os capítulos 9, 10 11 e 12 são sobre sistemas dinâmicos.
Few aspects of epidemics control in 1915–1916 (on resources of Tsarskoselskiy uyezd)
Authors: Orlova A. P.
Published: February 2021

Police reports and papers of the sanitary-executive commission about deceases of people of Tsarskoselskiy uyezd are understudied documents of 1915–1917, representative for comparative study of the resources and epidemic dynamics, special characteristics of healthcare system and interaction of administration, doctors and population.
Celiac trunk compression syndrome: modern ideas about the problem (review of literature)
Authors: Khamid Z. M. , Vasilevsky D. I. , Korolkov A. Yu. , Balandov S. G.
Published: February 2021

Celiac trunk compression syndrome is a symptom complex arising from compression of the celiac trunk by the median arcuate ligament, crura of diaphragm or ganglion tissue of the celiac plexus. The main clinical manifestations of this pathological condition are abdominal pain syndrome, indigestion and weight loss. The disease is detected in 0.4–1 % of people in the population, more often in young people. The pathophysiological mechanisms of the development of celiac trunk compression syndrome remain not fully understood, but the key reason for its development is ischemia of the digestive system. The main instrumental methods for diagnosing compression of the celiac trunk are ultrasound duplex scanning of the abdominal aorta and visceral arteries and spiral computed angiography. The only effective treatment for celiac trunk compression syndrome is surgery. Currently, both classical techniques and various minimally invasive technologies are used to decompress the celiac trunk. The advantages of open access include good visual and manual control of anatomical structures, the possibility of eliminating complications, changing the tactics of surgical intervention, if necessary, performing vascular reconstruction. The advantage of minimally invasive surgical technologies is minimal trauma to the abdominal wall tissues, minor postoperative pain syndrome, early rehabilitation, a low risk of developing cusp, wound infection and hernial defects. Regardless of the methodology, surgical treatment can achieve a positive effect in 75–90 % of patients with celiac trunk compression syndrome. These are the modern concepts of epidemiology, pathogenesis, clinical manifestations, diagnosis and methods of treatment of this pathological condition.
The dynamics of the psychoemotional state of students during the period of studying at the university depending on the level of their psychological readiness for learning
Authors: Toussova O. V. , Isaeva E. R. , Yusupov V. V. , Mordvinkina S. A. , Efimov D. A. , Vlasov T. D.
Published: February 2021

Introduction. This study contributes to the on-going research of the psychological readiness to learn and personal characteristics of medical students.

The objective of the study was to explore the dynamics of psychoemotional characteristics of medical students during the entire learning process, depending on the level of their psychological readiness for learning, which had been determined in the 1st year.

Methods and materials. The symptomatic questionnaire SCL-90-R was used to measure the psychoemotional characteristics of the 3rd and the 6th years students. Psychological readiness for learning (PRL) was determined in the 1st year according to the results of the study of the general intellectual potential and neuropsychic stability. Descriptive statistics (mean values, standard deviation) and comparison of mean values by Student’s t test were used as statistical methods. The study involved 507 students who studied at Pavlov University from 2013 to 2019.

Results. By the 6th year, students identify an increased risk of developing depression and anxiety, regardless of gender. By the 6th year, students from favorable PRL categories have increased scores of depression and anxiety scales, which indicates high chances of developing depressive symptoms and high anxiety even among responsible and well-adapted students. By the 6th year, sensitivity increases in female students, hostility – in males. Students with a poor PRL category in the 1st year showed a sufficiently high level of general intellectual development, which, probably, allowed these students to complete the training in the University despite their low level of neuropsychic stability.

Conclusions. Study results indicate the need to develop programs of socio-psychological support for students, focused on helping in overcoming emotional problems that arise at the final stages of education in the University.