bluuebunny/crossref_metadata_2025 huggingface dataset:
Is the Integration of Additional Eccentric, Balance and Core Muscles Exercises into a Typical Soccer Program Effective in Improving Strength and Postural Stability?
Authors: Dafkou Konstantinos , Sahinis Chrysostomos , Ellinoudis Athanasios , Kellis Eleftherios
Published: October 2021

Soccer teams integrate specific exercises into their typical workout programs for injury prevention. The purpose of this study was to investigate whether the incorporation of a brief and supplementary training program that involves eccentric, balance, and core exercises into the weekly soccer schedule can cause positive neuromuscular adaptations. Twenty-one soccer players were randomly allocated to either a training (n = 11) or a control group (n = 10). All players followed their teams’ typical program, consisting of 4–5 soccer-specific sessions plus 1 match, weekly. Training group players additionally performed biweekly, hamstring eccentric, balance, and core stability exercises for 8 weeks. Isokinetic concentric and eccentric peak torque (PT) of the hamstrings and quadriceps, changes in the center of pressure (COP) during a 30 s single-leg stance, and a supine bridge (trunk stability) test were assessed before and after the intervention. After the intervention, a 27% increase in hamstring concentric PT and a 33% reduction in COP sway in the stance test, were observed for the training group only (p < 0.05). These improvements were significant only for the non-dominant leg. Furthermore, the control group displayed an increase in COP sway during the bridge test compared to baseline values (p < 0.05), which reflects a deterioration in postural balance over time. Consequently, incorporating small doses of hamstring eccentric, proprioception, and core stability exercises into a typical training program of youth soccer players improves strength and postural balance in the non-dominant leg, as well as core muscle performance.
What Could and Should Ecological Civilization Education Be?
Authors: Wu Meng , Liu Chi-Chang
Published: October 2021

With the promotion of the term “ecological civilization” by the Chinese government, ecological civilization education (ECE) has gradually become popular in China. However, the concept of ECE remains unclear. In this commentary, we construct three triple-property models considering theories from environmental education (EE) to interpret ECE’s goals, program design perspectives, and learning outcomes. We suggest that the content of ECE can be replaced with the concept of EE, and that the three models implicit in EE can be utilized to establish an integrated landscape of ECE or EE per se.
Riemann Hypothesis and Random Walks: The Zeta Case
Authors: LeClair André
Published: October 2021

In previous work, it was shown that if certain series based on sums over primes of non-principal Dirichlet characters have a conjectured random walk behavior, then the Euler product formula for its L-function is valid to the right of the critical line ℜ(s)>12, and the Riemann hypothesis for this class of L-functions follows. Building on this work, here we propose how to extend this line of reasoning to the Riemann zeta function and other principal Dirichlet L-functions. We apply these results to the study of the argument of the zeta function. In another application, we define and study a one-point correlation function of the Riemann zeros, which leads to the construction of a probabilistic model for them. Based on these results we describe a new algorithm for computing very high Riemann zeros, and we calculate the googol-th zero, namely 10100-th zero to over 100 digits, far beyond what is currently known. Of course, use is made of the symmetry of the zeta function about the critical line.
Cold Dark Matter: A Gluonic Bose–Einstein Condensate in Anti-de Sitter Space Time
Authors: Cohen-Tannoudji Gilles , Gazeau Jean-Pierre
Published: October 2021

In the same way as the realization of some of the famous gedanken experiments imagined by the founding fathers of quantum mechanics has recently led to the current renewal of the interpretation of quantum physics, it seems that the most recent progress of observational astrophysics can be interpreted as the realization of some cosmological gedanken experiments such as the removal from the universe of the whole visible matter or the cosmic time travel leading to a new cosmological standard model. This standard model involves two dark components of the universe, dark energy and dark matter. Whereas dark energy is usually associated with the cosmological constant, we propose explaining dark matter as a pure QCD effect, namely a gluonic Bose–Einstein condensate, following the transition from the quark gluon plasma phase to the colorless hadronic phase. Our approach not only allows us to assume a Dark/Visible ratio equal to 11/2 but also provides gluons (and di-gluons, viewed as quasi-particles) with an extra mass of vibrational nature. Such an interpretation would support the idea that, apart from the violation of the matter/antimatter symmetry satisfying the Sakharov’s conditions, the reconciliation of particle physics and cosmology needs not the recourse to any ad hoc fields, particles or hidden variables.
Caregivers’ Willingness to Vaccinate Their Children against Childhood Diseases and Human Papillomavirus: A Cross-Sectional Study on Vaccine Hesitancy in Malawi
Authors: Adeyanju Gbadebo Collins , Sprengholz Philipp , Betsch Cornelia , Essoh Tene-Alima
Published: October 2021

Background: Vaccines are among the most effective and cost-efficient public health interventions for promoting child health. However, uptake is considerably affected by vaccine hesitancy. An example is Malawi, with a decline in second vaccine doses and the highest cervical cancer incidence and mortality rate in Sub-Saharan Africa. Understanding vaccine hesitancy is especially important when new vaccines are introduced. This study explores factors contributing to vaccine hesitancy for routine childhood immunization and the human papillomavirus vaccine in Malawi. Methods: The study used a cross-sectional survey design targeting caregivers of children under five years old and adolescent girls. The sample population was derived using three inclusion criteria: one district with low vaccine uptake (Dowa), one district with high vaccine uptake (Salima), and one district where human papillomavirus vaccine was piloted earlier (Zomba). A convenience sample of one primary and one secondary health facility was selected within each district, and participants were systematically included (n = 600). The measures were based on 5C scale for measuring vaccine hesitancy. Multiple regression analyses were performed to explore vaccination intention predictors. Results: Confidence in vaccine safety was the strongest predictor of routine childhood immunization, followed by constraints due to everyday stress. Caregivers had lower confidence in vaccine safety and efficacy when they believed rumors and misinformation and were unemployed. Confidence was higher for those who had more trust in healthcare workers. Age, gender, religion, education, employment, belief in rumors, and trust in healthcare workers were considered predictors of vaccination intention. A husband’s positive attitude (approval) increased childhood vaccination intention. For human papillomavirus, vaccination intentions were higher for those with lower education, more trust in healthcare workers, lower complacency, and a lower tendency toward calculating the benefits and risks of vaccination. Knowledge of human papillomavirus did not increase vaccination intention, but the need to attain a husband’s approval did. Being a young adult and unemployed increased belief in rumors, while trust in healthcare workers reduced the belief. Conclusions: This study provides good insights into the drivers of vaccine hesitancy across different contexts in Malawi. However, further studies are necessary to understand low risk perception among elderly people and the declining trend in second vaccine doses.
Manifesto on the Value of Adult Immunization: “We Know, We Intend, We Advocate”
Authors: Antonelli-Incalzi Raffaele , Blasi Francesco , Conversano Michele , Gabutti Giovanni , Giuffrida Sandro , Maggi Stefania , Marano Cinzia , Rossi Alessandro , Vicentini Marta
Published: October 2021

Immunization through vaccination is a milestone achievement that has made a tremendous contribution to public health. Historically, immunization programs aimed firstly to protect children, who were disproportionally affected by infectious diseases. However, vaccine-preventable diseases can have significant impacts on adult mortality, health, and quality of life. Despite this, adult vaccinations have historically been overlooked in favor of other health priorities, because their benefits to society were not well recognized. As the general population is aging, the issue of vaccination in older adults is gaining importance. In high-income countries, recommendations for the routine vaccination of older adults have been gradually introduced. The Italian National Immunization Plan is considered to be among the most advanced adult vaccination plans in Europe. However, available data indicate there is low adherence to vaccination recommendations in Italy. The COVID-19 pandemic has exposed the damage that can be caused by an infectious disease, especially among adults and individuals with comorbidities. The aim of this “Manifesto”, therefore, is to provide an overview of the existing evidence on the value of adult vaccination, in the Italian context, with a call to action to healthcare providers and health authorities.
Sublingual Immunization with Chimeric C1q/CD40 Ligand/HIV Virus-like Particles Induces Strong Mucosal Immune Responses against HIV
Authors: Liu Dongliang , Zhang Sheng , Poteet Ethan , Marin-Muller Christian , Chen Changyi , Yao Qizhi
Published: October 2021

Development of a vaccine that can elicit robust HIV specific antibody responses in the mucosal compartments is desired for effective prevention of HIV via sexual transmission. However, the current mucosal vaccines have either poor immunogenicity when administered orally or invite safety concerns when administered intranasally. Sublingual immunization has received more attention in recent years based on its efficiency in inducing systemic and mucosal immune responses in both mucosal and extra-mucosal tissues. To facilitate the transport of the immunogen across the sub-mucosal epithelial barrier, we found that CD91, the receptor of C1q, is prevalently expressed in the sublingual mucosal lining, and thus, a modified chimeric C1q surface conjugated CD40L/HIV VLP was generated. The ability of this chimeric C1q/CD40L/HIV VLP to bind, cross the epithelial layer, access and activate the sub-mucosal layer dendritic cells (DCs), and ultimately induce enhanced mucosal and systemic immune responses against HIV is evaluated in this study. We found that C1q/CD40L/HIV VLPs have enhanced binding, increased transport across the epithelial layer, and upregulate DC activation markers as compared to CD40L/HIV VLPs alone. Mice immunized with C1q/CD40L/HIV VLPs by sublingual administration showed higher levels of IgA salivary antibodies against both HIV Gag and Env than mice immunized with CD40L/HIV VLPs. Moreover, sublingual immunization with C1q/CD40L/HIV VLPs induced more Env- and Gag-specific IFN-γ producing T cells than the CD40L/HIV VLPs group. Interestingly, C1q/CD40L/HIV VLP immunization can also induce more mucosal homing T cells than that in CD40L/HIV VLP group. Our data suggest that incorporation of C1q to CD40L/HIV VLPs is a promising novel strategy and that the sublingual immunization can be a favorite immunization route for HIV mucosal vaccines.
Validity of the Spanish Version of the Vaccination Attitudes Examination Scale
Authors: Paredes Borja , Cárdaba Miguel Ángel , Cuesta Ubaldo , Martinez Luz
Published: October 2021

Individuals vary in the extent to which they have unfavorable attitudes towards vaccines. The Vaccination Attitudes Examination (VAX) Scale is a recently developed brief 12-item questionnaire created to better understand general vaccination attitudes. The current research aimed at providing a Spanish adaptation of the VAX Scale. After conducting an initial pilot study, Exploratory and Confirmatory Factor Analysis showed that the Spanish version of the scale had good internal consistency and factor structure (Study 1), discriminant validity from other individual differences measures (such as the Beliefs about Medicine Questionnaire and the Medical Mistrust Index) as well as good predictive validity of relevant vaccination-related outcomes (Study 2). In conclusion, in the present research, the Spanish version of the VAX scale proved to have a high internal consistency, showed convergent validity with other conceptually similar constructs, and successfully predicted vaccination intentions and vaccination decisions. Having this scale available in Spanish will allow researchers to analyze vaccination processes and vaccine hesitancy over a great number of people.
Implementation of a Vaccination Program Based on Epidemic Geospatial Attributes: COVID-19 Pandemic in Ohio as a Case Study and Proof of Concept
Authors: Awad Susanne F. , Musuka Godfrey , Mukandavire Zindoga , Froass Dillon , MacKinnon Neil J. , Cuadros Diego F.
Published: October 2021

Geospatial vaccine uptake is a critical factor in designing strategies that maximize the population-level impact of a vaccination program. This study uses an innovative spatiotemporal model to assess the impact of vaccination distribution strategies based on disease geospatial attributes and population-level risk assessment. For proof of concept, we adapted a spatially explicit COVID-19 model to investigate a hypothetical geospatial targeting of COVID-19 vaccine rollout in Ohio, United States, at the early phase of COVID-19 pandemic. The population-level deterministic compartmental model, incorporating spatial-geographic components at the county level, was formulated using a set of differential equations stratifying the population according to vaccination status and disease epidemiological characteristics. Three different hypothetical scenarios focusing on geographical subpopulation targeting (areas with high versus low infection intensity) were investigated. Our results suggest that a vaccine program that distributes vaccines equally across the entire state effectively averts infections and hospitalizations (2954 and 165 cases, respectively). However, in a context with equitable vaccine allocation, the number of COVID-19 cases in high infection intensity areas will remain high; the cumulative number of cases remained >30,000 cases. A vaccine program that initially targets high infection intensity areas has the most significant impact in reducing new COVID-19 cases and infection-related hospitalizations (3756 and 213 infections, respectively). Our approach demonstrates the importance of factoring geospatial attributes to the design and implementation of vaccination programs in a context with limited resources during the early stage of the vaccine rollout.
Dynamic Water-Level Regulation at Run-of-River Hydropower Plants to Increase Efficiency and Generation
Authors: Heimerl Stephan , Schwiersch Niklas
Published: October 2021

In times of the energy transition and the intensified expansion of renewable energy systems, this article presents an optimization approach for run-of-river power, i.e., dynamic water-level regulation. Its basic idea is to use river sections influenced by backwater more evenly via the operating regime of a hydropower plant. In contrast to conventional dam and weir water level management, the head of the reservoir is not shifted toward the weir while the discharge rate increases but is kept in position by temporarily raising the water level. This generates a greater head for higher discharge rates of an operating regime. As can be shown using an example, this has a direct effect on the performance and, in interaction with the discharge duration curve, on the annual work of the plant. The dynamic water-level regulation, thus, represents an environmentally compatible, energy-efficient optimization for run-of-river hydropower plants.
Changes in Selected Water Quality Parameters in the Utrata River as a Function of Catchment Area Land Use
Authors: Dębska Katarzyna , Rutkowska Beata , Szulc Wiesław , Gozdowski Dariusz
Published: October 2021

Surface waters are very important for society, as they are a source of potable water, as well a water supply for agricultural, industrial and recreational purposes. This paper presents changes in the quality of the water in the Utrata River, along its entire length, as a function of the catchment area’s land use. Water-quality measurements were carried out once a month for a total period of one year (April 2019–March 2020) at 24 measurement points. The concentrations of the following compounds were measured: total phosphorus, ammonia nitrogen and nitrate nitrogen, dissolved oxygen, and chemical oxygen demand. The results were compared with the limit values specified in the Regulation of the Minister of Maritime Economy and Inland Navigation. In order to determine the impact of land use on water quality in the Utrata River, principal component analyses (PCA) were conducted. The research demonstrated a considerably negative impact of agricultural land use and the presence of urban areas on the water quality of the Utrata River, with elevated concentrations of total phosphorus, ammonia nitrogen, nitrate nitrogen and COD, and decreasing concentrations of dissolved oxygen. The presented results point to the need for effective strategies to mitigate the adverse impact of agriculture and urbanisation on the environment and surface waters.
Operation and Performance of Austrian Wastewater and Sewage Sludge Treatment as a Basis for Resource Optimization
Authors: Amann Arabel , Weber Nikolaus , Krampe Jörg , Rechberger Helmut , Zoboli Ottavia , Zessner Matthias
Published: October 2021

Recent years came with a paradigm shift for wastewater treatment plants (WWTPs) to extend the sole purpose of contaminant removal to an additional function as resource recovery facilities. This shift is accompanied by the development of new European legislation towards better inclusion of resource recovery from wastewater. However, long operational lifespans and a multitude of treatment requirements demand thorough investigations into how resource recovery can be implemented sustainably. To aid the formulation of new legislation for phosphorus (P) recovery specifically, in 2017 we conducted a survey on Austrian WWTP-infrastructure, with a focus on P removal and sludge treatment, as well as disposal and sludge quality of all WWTPs above 2000 population equivalents (PE). Data were prepared for analysis, checked for completeness and cross-checked for plausibility. This study presents the major findings from this database and draws essential conclusions for the future recovery of P from wastewater. We see results from this study as useful to other countries, describing the current state of the art in Austria and potentially aiding in developing wastewater treatment and P recovery strategies.
The professional resilience of mid-career GPs in the UK: a qualitative study
Authors: Martin Lucy , McDowall Almuth
Published: October 2021

Background

With a continued crisis of increasing workload and reduced workforce in general practice, supporting resilience is a key strategy for sustaining the profession into the future.

Aim

How do GPs perceive professional resilience, and what workplace factors influence it?

Design and setting

A UK-based qualitative study of the perspectives of GPs currently practicing in mainly urban locations across the UK with ≥5 years’ experience after completion of GP training.

Method

Participants were recruited using convenience sampling, which included social media forums, and underwent semi-structured interviews undertaken in May and June 2020 (n= 27). Data were analysed using thematic analysis.

Results

Participants offered definitions of and influences on resilience that largely fit with existing research, but in addition, may result in the perception that GPs are obstructive, or that resilience may be a ‘surface act’. GPs agree that the current focus on methods of improving resilience does support them, but there is significantly more to be done in this field. Social media activity aiming at GP support may be counterproductive. Reduction of clinical working hours is a common strategy to improve resilience.

Conclusion

That GPs feel to improve resilience they need to work fewer clinical hours may have huge implications for a workforce already in crisis, and ultimately, for the health care of the UK population. Urgent research is needed to formulate a bespoke assessment for measuring GP resilience to assess potential interventions, and to identify GPs at risk of mental ill-health or leaving the profession.
Methodological quality assessment in systematic reviews in health sciences that included observational studies: a cross-sectional study/ Avaliação da qualidade metodológica em revisões sistemáticas na área das ciências da saúde que incluíram estudos observacionais: um estudo transversal
Authors: Massignan Carla , Oliveira Luciana Butini , Honnef Lia Rosana , Oliveira Júlia Meller de , Lehmkuhl Karyn , Pauletto Patrícia , Stefani Cristine Miron , Canto Graziela de Luca
Published: October 2021

There is great variability in methodological quality assessment (MQ) systematic reviews (SRs). We identified how MQ assessment in SRs that included observational studies in Health Science is applied and explored associated characteristics. A search was conducted in PubMed and five trained reviewers randomly selected 1,025 references after sample size calculation. Only SR published in English (September 2019/2020) were included. Selection and data extraction were conducted in two phases. Data were analyzed descriptively and using logistic regressions. After eligibility criteria application, 205 SRs were included. Only 27.8% informed the protocol registration and 80.0% described having followed a reporting guideline. Proportion’ SRs did not seem to present MQ assessment (OR 4.22; 95% CI: 1.38-12.87; P =0.01). SRs that did not register the study protocol (9.70; 95% CI: 1.95-48.27; P 0.001), those that did not inform the included study design (5.96; 95% CI: 1.63-21.77; P 0.001) and those without MA (OR 8.90; 95% CI: 2.79-28.43; p0.001) increased the odds of not evaluating MQ. Newcastle-Ottawa (47.5%), Joanna Briggs Institute (8.2%) and National Institute of Health (7.1%) were the most commonly used MQ tools. Lack of protocol registration, absence of information about the design of included studies, absence of MA, and proportion’ SRs were associated with lack of MQ assessment.
Sexual and Reproductive Health Challenges in Temporary Marriage: A Systematic Review
Authors: Valizadeh Farzaneh , Mohammadbeigi Abolfazl , Chaman Reza , Kashefi Fatemeh , Nazari Ali Mohammad , Motaghi Zahra
Published: October 2021

Background: Temporary marriage is a legal form of marriage in Shia Islam allowing a man and a woman to become married in a fixed period of time. This review was conducted to identify the potential effects of temporary marriage on the sexual and reproductive health of women. Study design: A systematic review Methods: Electronic databases, including Web of Knowledge, Embase, PubMed, Scopus, ScienceDirect, PsycINFO, ProQuest, IranMedex, Scientific Information Database (SID), and Magiran, were searched up to October 2020 to identify the studies carried out on sexual and reproductive health challenges in temporary marriage. All the selected articles were assessed for eligibility according to their titles and abstracts. Results: During the search on articles published within 1995 to October 2020, 1,802 relevant records were identified, and after evaluation 30 full-text papers were included in the present systematic review. Out of the 34,085 study participants in the selected studies, 3,547 subjects had temporary marriage who were studied under six different categories, namely (1) sexually transmitted infections (STIs)/human immunodeficiency viruses, (2) early child marriage, (3) unplanned pregnancy and induced abortion, (4) violence, (5) psychosocial disorders, and (6) other issues. Individuals with temporary marriage are vulnerable and need to have easy access to health education and sexual and reproductive health services in a safe and unprejudiced environment. Ignoring the aforementioned facts will cause serious public health problems, especially for women from a lower socioeconomic background. Conclusions: In the current situation with under-reporting of temporary marriage-related events due to social stigma and absence of quality services in sexual and reproductive health, women with temporary marriage are under the additional risk of STIs, unwanted pregnancy, abortion, and violence.
Determining the Factors Affecting Long-Term and Short-Term Survival of Breast Cancer Patients in Rafsanjan Using a Mixture Cure Model
Authors: Jahani Sardar , Hoseini Mina , Pourhamidi Rashed , Askari Mahshid , Moslemi Azam
Published: October 2021

Background: Breast cancer is one of the most common causes of death among women worldwide and the second leading cause of death among Iranian women. The incidence of this malignancy in Iran is 22 per 100,000 women. These patients have long-term survival time with advances in medical sciences. The present study aimed to identify the risk factors of breast cancer using Cox proportional hazard and Cox mixture cure models. Study design: It is a retrospective cohort study. Methods: In this cohort study, we recorded the survival time of 140 breast cancer patients referred to Ali Ibn Abitaleb Hospital in Rafsanjan, Iran, from 2001 to 2015. The Kaplan-Meier curve was plotted; moreover, two Cox proportional hazards and the Cox mixture cure models were fitted for the patients. Data analysis was performed using SAS 9.4 M5 software. Results: The mean age of patients was reported as 47.12 ±12.48 years at the commencement of the study. Moreover, 83.57% of patients were censored. The stage of disease was a significant variable in Cox and the survival portion of Cox mixture cure models (P=0.001). The consumption of herbal tea, tumor size, duration of the last lactation, family history of cancer, and the type of treatment were significant variables in the cured proportion of the Cox mixture cure model (P=0.001). Conclusion: The Cox mixture cure model is a flexible model which is able to distinguish between the long-term and short-term survival of breast cancer patients. For breast cancer patients, cure effective factors were the stage of the disease, consumption of herbal tea, tumor size, duration of the last lactation, family history, and the type of treatment.
Analysis of COVID-19 pandemics in Kazakhstan
Authors: Zhussupov Baurzhan , Saliev Timur , Sarybayeva Gulya , Altynbekov Kuanysh , Tanabayeva Shynar , Altynbekov Sagat , Tuleshova Gulnara , Pavalkis Dainius , Fakhradiyev Ildar
Published: October 2021

Background: This study aimed to analyze the demographic and epidemiological features of identified COVID-19 cases in Kazakhstan. Study design: A cross-sectional study. Methods: This cross-sectional study aimed to analyze COVID-19 cases (n=5116) collected from March 13 to June 6, 2020, in Kazakhstan. The data were obtained from a state official medical electronic database. The study investigated the geographic and demographic data of patients as well as the association of COVID-19 cases with gender and age. The prevalence of symptoms, the presence of comorbidities, complications, and COVID-19 mortality were determined for all patients. Results: The mean ±SD age of the patients in this study was 34.8 ±17.6 years, and the majority (55.7%) of COVID-19 cases were male and residents of cities (79.6%). In total, 80% of the cases had the asymptomatic/mild form of the disease. Cough (20.8 %) and sore throat (17.1%) were the most common symptoms among patients, and pneumonia was diagnosed in 1 out of 5 cases. Acute respiratory distress syndrome (ARDS) was recorded in 1.2% of the patients. The fatality rate was 1% in the study population and lethality was 2.6 times higher in males compared to females. Each additional year in age increased the probability of COVID-19 infection by 1.06 times. The presence of cardiovascular, diabetes, respiratory, and kidney diseases affected the rate of mortality (P<0.05). Conclusions: The results demonstrated a high proportion (40%) of the asymptomatic type of coronavirus infection in the Kazakhstan population. The severity of COVID-19 symptoms and lethality were directly related to the age of patients and the presence of comorbidities.
The improvement of cardiac multispiral computed tomography protocol for planning interventional arrhythmia management
Authors: Kashtanova N. Yu. , Kondratyev E. V. , Karmazanovsky G. G. , Gruzdev I. S. , Artyukhina E. A. , Yashkov M. V. , Revishvili A. Sh.
Published: October 2021

Purpose. The study aimed at the comparison of computed tomography (СT) contrast enhancement (CE) protocols for optimal visualization of cardiac chambers, evaluation of their impact on results of non-invasive superficial cardiac mapping.Methods. The study included 93 patients with heart rhythm disorders in whom catheter ablation of arrhythmia was planned. Noninvasive cardiac mapping for arrhythmia localization was performed and included multichannel ECG-registration and CT with intravenous СE (1st group - monophasic (50 patients), 2nd group - split-bolus (18 patients), 3rd group - with pre-bolus (25 patients). Qualitative and quantitative (measurement of mean blood attenuation in four chambers, calculation of ventricular-myocardial [VM] contrast-to-noise ratio VM-LV и VM-RV for the left ventricle [LV] and right ventricle [RV], respectively) parameters were compared between the groups. Fusion of ECG and CT data was carried out a semi-automatic mode with a non-invasive imaging complex.Results. Regardless of CE technique, sufficient and homogeneous contrast attenuation was obtained for the left atrium (LA) and LV (mean blood attenuation in LA more than 278 HU, LV 250 HU, VM-LV 0,582). In most cases, the enhancement of the right heart was insufficient with the monophasic protocol; the average CT density was lower than 200 HU, VM-RV 0,256. The split-bolus protocol improved visualization of the right atrium (RA) and RV (blood density in RA 258HU, RV 227HU, VMRV 0,541); however, there was a heterogeneity of the RA cavity due to artifacts from the superior vena cava (VC) and unenhanced blood from the inferior VC. Pre-bolus administration increased the contrast ratio between RA myocardium and blood due to the improvement of blood CT density in the inferior VC (blood density 294 HU). The quality of RV CE was similar to 2nd group (blood density 264 HU, VM-RV 0,565).Conclusion. The split-bolus and with pre-bolus CE protocols improve visualization of the RV, supporting the high-level enhancement of the left heart. The protocol with a pre-bolus is preferable for exact differentiation of the right atrial endocardial contour.
THE TYPIZATION OF THE SOIL COVER STRUCTURE BY GIS MEANS FOR EVALUATING THE PRODUCTIVE POTENTIAL OF AGRICULTURAL LANDSCAPES ON THE EXAMPLE OF THE REPUBLIC OF BELARUS
Authors: A.M. Chervan’ A.M. x
Published: October 2021

A geosystem approach to the analysis of the structure of the soil cover by soil combinations with the use of geoinformation technologies is considered. Within the boundaries of the soil-ecological zoning of Belarus, the identified types of land are considered as units of territorial planning in the areas of nature management. An agroecological assessment of the productive potential of soil and land resources of agricultural landscapes was carried out on the basis of the nomenclature of land types and the formula of soil combination. In the basic agricultural landscapes, on a typical spatial basis, the factors of differentiation of the structure of the soil cover and the conditions of land use are taken into account. Regularities of changes in the cost of production of the main types of agricultural products, depending on the territorial affiliation to one of the limited set of identified types of land, have been revealed. The prospects for the use of typified soil cover structures in land management and the practice of territorial planning of agricultural landscapes are described.
COMPARISON OF HOP COUNT ON WIRELESS MESH NETWORK
Authors: Staviana Eliza , Wathan Hizbul
Published: October 2021

Wireless Mesh Network (MWN) is a self-configured and self-organized network that can typically be implemented on 802.11 hardware. It consists of several nodes that make up the network backbone in a multi-story and sealed room, in contrast to building a hall or a place without bulkheads. This experiment uses an odd and even number scheme with a maximum number of routers of 8 pieces. In a sealed room, the performance of the method of installation of the number of strange Hops is better than the number of even Hops, with throughput calculation of 2665.19 KB, delay 0.25 s, data lost 0.60 %, and jitter 0.01 s and the best scheme that is with the number of Hops as much as five pieces, with the calculation of the number of throughput 7001.88 KB, delay 0.51s, data lost 0.47%, and jitter 0.002 s. In the free spaces, it can produce the better performance of the even hop count calculation scheme than the odd hop count by building throughput 16709.8 KB, delay 0.2 s, data lost 0.08 %, and jitter 0.03 s. and the best scheme that is with the number of throughput 68975,2 KB, wait for 0.0148 s, data lost 0 %, and jitter 0.0014 s. WMN performance in unshared space is more maximized than the version in a sealed area, with throughput values of 11786.82 kbps, delay of 2.08 ms, and data lost by 0.08 %, and jitter 0.03 s.it can produce the better performance of the even hop count calculation scheme than the odd hop count by producing throughput 16709.8 KB, delay 0.2 s, data lost 0.08 %, and jitter 0.03 s. and the best scheme that is with the number of throughput 68975,2 KB, wait for 0.0148 s, data lost 0 %, and jitter 0.0014 s. WMN performance in unshared space is more maximized than the version in sealed space, with throughput values of 11786.82 kbps, delay of 2.08 ms, and data lost by 0.08 %, and jitter 0.03 s. and data lost by 0.08%, and jitter 0.03s.
KOMPARASI HASIL ANTARA MODEL PROFILE MATCHING DAN MODEL PROFILE MATCHING MENGGUNAAN FUZZIFIKASI, SEBAGAI SEBUAH TINJAUAN
Authors: Kurniawati Deborah
Published: October 2021

ABSTRAKBerbagai model dapat dibentuk dari sebuah metode. Perbedaan hasil dari model yang dibuat dengan metode yang sama sangat dimungkinkan, karena model yang berbeda. Pemilihan model yang tepat akan menentukan hasil yang diperoleh.Profile matching merupakan metode yang cara kerjanya adalah mencari objek yang profilnya mendekati profil yang diinginkan. Fuzzifikasi merupakan salah satu proses yang terdapat pada sistem fuzzy. Fuzzifikasi akan mendapatkan nilai analog sebagai masukan dan menghasilkan nilai fuzzy (membership degree) dari nilai analog tersebut sebagai keluarannya. Profile matching dan fuzzifikasi memiliki domain nilai untuk kelompok nilai tertentu. Selain menggunakan domain yang sama, perbandingan hasil pada penelitian ini akan menggunakan kriteria, subkriteria dan profil yang sama dengan kasus pemilihan makalah terbaik.Dari hasil pengujian disimpulkan bahwa model yang telah dibuat dengan Profile matching mempunyai potensi yang besar untuk menghasilkan nilai yang sama walaupun dengan perbedaan nilai awal yang besar, sementara model yang dibangun dengan metode Profile matching dan fuzzifikasi dapat menghasilkan nilai makalah dengan tetap menjaga perbedaan nilai awal.Kata kunci : fuzzifikasi. membership degree, model, Profile matching
PEMODELAN UNTUK MENENTUKAN KECUKUPAN ANGKA GIZI IBU HAMIL
Authors: Rihastuti Siti , Kusrini Kusrini , Al Fatta Hanif
Published: October 2021

AbstrakMakalah ini membahas tentang fuzzy inference system metode sugeno untuk menentukan kecukupan angka gizi ibu hamil. Pemodelan sistem pada penelitian ini meliputi delapan tahap, yaitu : studi literatur, analisis permasalahan, pemecahan permasalahan, pemodelan menggunakan fuzzy, rancangan pemodelan sistem, pembuatan sistem, pengujian sistem dan evaluasi hasil. Berdasarkan analisis, pembahasan dan pengujian yang dilakukan dapat diketahui bahwa status gizi sebagai variabel output yang dihasilkan oleh sistem dipengaruhi oleh empat faktor sebagai variabel input, yaitu berupa pertambahan berat badan, tinggi badan ibu hamil, usia kandungan, usia ibu hamil. Sistem yang dikembangkan dapat menghasilkan output dengan tingkat akurasi yang baik yang diharapkan mampu membantu pengambil keputusan dalam menentukan status kecukupan angka gizi ibu hamil.Kata Kunci : sistem pendukung keputusan, metode sugeno, kecukupan angka gizi
PERANCANGAN SISTEM INFORMASI PENILAIAN KINERJA SUMBER DAYA MANUSIA MENGGUNAKAN METODE GAMIFIKASI
Authors: Farozi Mohamad , Suyanto M. , Lutfi Emha Taufiq
Published: October 2021

ABSTRAKKualitas sumber daya manusia dalam perusahaan banyak ditentukan oleh sejauh mana sistem yang ada diperusahaan tersebut mampu menunjang, memberikan motivasi dan memuaskan keinginan baik dari pegawai maupun dari organisasi perusahaan. Sistem yang mampu memberikan motivasi, kesenangan dan hal menarik lainnya agar sumber daya manusia didalam perusahaan menikmati suasana kerja yang nyaman dan terikat (engagement) pada aktivitas pekerjaan walaupun dilakukan secara berulang – ulang dan sama.Rancangan sistem informasi penilaian kinerja SDM dengan metode gamifikasi ditampilkan melalui website dan memungkinkan challenge (tugas dan tanggung jawab) karyawan menjadi lebih menyenangkan untuk dikerjakan, user (karyawan) akan diberikan point dan badge (reward) ketika berhasil menyelesaikan challenge dan user (karyawan) lain dapat melihat performa dari masing-masing user (karyawan) melalui leaderboard.Metode gamifikasi yang digunakan mengacu pada prosesuntuk memperkenalkan, mengubahdanmengoperasikansistempelayanan serta interaksi antara manusia dan komputer yang banyak mengambilinspirasi dari mechanic game yangmembuatproses bisnislebihmenyenangkandenganmemasukkanunsur– unsur permainandidalamnya serta memastikanproduktivitas dan semangat kerja karyawan.Kata kunci :engagement, leaderboard, mechanic game
MANAJEMEN JARINGAN INTERNET SEKOLAH MENGGUNAKAN ROUTER MIKROTIK DAN PROXY SERVER
Authors: Purwanto Purwanto , Kusrini Kusrini , Huizen Roy Rudolf
Published: October 2021

INTISARIDengan semakin berkembangnya Instansi/lembaga maka akan semakin kompleks juga kebutuhan dalam manajemen jaringan Komputer. Salah satu manajemen yang cukup penting yaitu manajemen pada Router dan Proxy Server. Untuk manajemen Router dan Proxy Server agar sesuai dengan kebutuhan yang berkembang dalam sebuah Instansi/lembaga maka perlu dilakukan pengaturan secara coding/script yang cukup rumit.Dengan menggunakan Mikrotik Routerbord mikrotik kita dapat mengatur konfigurasi router dengan menggunakan Graphic User Interface (GUI) melalui fasilitas Winbox sehingga lebih User friendly. Sistem manajemen baru menggunakan routerbord mikrotik pada jaringan internet di SMK Negeri Jumantono dapat mengontrol arus lalu lintas data dan sistem manajemen Load balancing dengan metode Fail Over dan PCC mampu menghindari permasalahan overload pada salah satu jalur koneksi dan dapat mengoptimalkan trafik yang ada. Metode HTB yang ada pada router mikrotik mampu melakukan limitasi bandwidth terhadap user sesuai dengan fungsinya yaitu sebagai bandwidth limiter dan metode Per Connection Queue (PCQ) mampu membatasi maksimal data rate untuk setiap sub queue (pcq-rate) dan jumlah paket data (pcq-limit).Sistem manajemen hotspot pada routerbord mikrotik dapat mengatur hak akses dari tiap-tiap user dan penerapan sistem Single sign on dapat meminimalisir penggunaan username dan password serta dengan adanya sistem keaaman memfilter virus, spam, trojan ataupun malware lain.Sistem manajemen proxy server dan filtering dapat meningkatkan akses jaringan internet dan dapat memfilter konten-konten web yang negatif atau tidak sehat untuk diakses dilingkungan pendidikan SMK Negeri Jumantono.Metode pengembangan system yang penulis gunakan dalam menyusun tesis ini yaitu metode Network Development Life Cycle (NDLC) karena sesuai dengan pokok bahasan yaitu konfigurasi jaringan komputer yang berkelanjutan yang mencakup tahap Analisis, Design, Simulation Prototype, Implementation, Monitoring dan Managemen.Berdasarkan monitoring yang dihasilkan, sistem baru jaringan yang penulis lakukan telah memenuhi kebutuhan yang ada pada SMK Negeri Jumantono dan telah menjawab semua permaslahan sesuai kondisi disekolah.Metode untuk pengukuran kualitas akses jaringan mengunakan metode QoS yang dapat untk yang membantu end user menjadi lebih produktif dengan memastikan bahwa user mendapatkan kinerja yang handal dari aplikasi-aplikasi berbasis jaringan. Aliran paket data dapat ditentukan melalui lima parameter yang ada pada QoS yaitu Throughput, Delay, Jitter, Packet Loss dan Bandwidth.Kata Kunci: Routerbord Mikrotik, Manajemen Jaringan, NDLC, Proxy Server, QoS.
MODEL PENGENALAN KERAJINAN PERAK BERBASIS AUGMENTED REALITY UNTUK ANAK SD (STUDI KASUS : KERAJINAN TANGAN PERAK YOGYAKARTA)
Authors: Winardi Sugeng
Published: October 2021

AbstrakPenelitian ini akan membangun model pembelajaran melalui pengenalan jenis dan bentuk kerajinan tangan berbasis 3D dengan konsep augmented reality. Jika diterapkan pada dunia nyata, aplikasi ini akan memudahkan seseorang untuk belajar mengenai jenis kerajinan tangan melalui gambar interaktif yang terkoneksi dengan aplikasi berbasis jaringan internet.Untuk memudahkan model aplikasi berbasis AR ini dapat diterapkan di dunia nyata, peneliti akan menggunakan metode marker based. Marker merupakan sebuah teknik yang menggunakan sebuah frame dapat berupa foto sebuah objek nyata atau gambar buatan dengan pola unik untuk mendeteksi sebuah objek. Penelitian ini bertujuan untuk membangun sebuah model pembelajaran berbasis Augmented Reality yang dapat membantu dalam proses mengenali jenis kerajinan tangan baik yang berbentuk gambar atau objek nyata melalui proses tracking 3DPenelitian ini bertujuan untuk membangun sebuah model pembelajaran berbasis Augmented Reality yang dapat membantu dalam proses mengenali jenis kerajinan tangan baik yang berbentuk gambar atau objek nyata melalui proses tracking 3D. Model pembelajaran ini akan sangat memudahkan seseorang dalam mengenali sebuah objek kerajinan tangan melalui aplikasi berbasis mobile Android.Kata Kunci : marker based, Augmented Reality, kerajinan tangan, tracking 3D
Perbandingan Metode Single Linkage dan Fuzzy C Means Untuk Pengelompokkan Trafik Internet
Authors: Eko Pramono Auliya Burhanuddin, Ema Utami,
Published: October 2021

Penelitian dengan judul “Perbandingan metode Single Linkage dan Fuzzy C Means untuk pengelompokkan trafik internet” bertujuan mengetahui klaster pengelompokkan bandwidth internet menggunakan metode Single Linkage dan Fuzzy C Means. Batasan penelitian adalah pengelompokkan dengan metode clustering Single Linkage dan Fuzzy C Means dan akan dibandingkan untuk mengetahui kualitas klaster yang lebih baik menggunakan metode purity. Data yang digunakan adalah data upload, download, dan jumlah login tiap user dari 1 Agustus 2016 s/d 28 Januari 2017. Single Linkage merupakan hierarchi clustering, data dikelompokkan tiap data terdekat sehingga diakhir didapatkan kelompok tertentu. Fuzzy C Means merupakan partitional clustering dimana dari data akan dicari pusat klaster dan data yang lebih dekat ke pusat klaster akan menjadi anggota kelompok tersebut. Kulitas klaster diuji dengan metode Purity, klaster yang mempunyai nilai purity mendekati 1 adalah klaster yang mempunyai kualitas yang lebih baik. Perbandingan dua metode didapatkan metode mana yang menghasilkan kelompok dengan kualitasnya lebih baik dan kecepatan pengelompokkannya yang lebih cepat. Jumlah data uji 50, 100, 150, 200, 250, 300, 350, dan 400. Hasilnya didapatkan Single Linkage mempunyai kualitas klaster lebih baik karena nilai puritynya lebih tinggi. Tetapi kecepatan pengelompokkannya Fuzzy C Means lebih cepat. Kelompok trafik internet yang didapatkan adalah kelompok pengguna internet paling besar 880 user, kelompok sedang 12 user, dan kelompok kecil 2106 user. Dari 8 sampel data uji didapatkan kualitas klaster single linkage lebih baik dibandingkan fuzzy c means, tetapi kecepatan pengelompokkan fuzzy c means lebih cepat dibandingkan single linkage. Semakin lama proses pengelompokkan akan didapatkan kualitas klaster yang lebih baik. Kata Kunci: clustering, Fuzzy C Means, Single Linkage, Purity
KONSEP PENGEMBANGAN KABUPATEN YANG CERDAS (Studi Kasus : Kabupaten Sleman, Yogyakarta)
Authors: Winardi Sugeng
Published: October 2021

IntisariPertumbuhan penduduk yang relatif cepat di perkotaan menimbulkan berbagai permasalahan khas perkotaan, seperti penurunan kualitas pelayanan publik, berkurangnya ketersediaan lahan pemukiman, kemacetan di jalan raya, kesulitan mendapatkan tempat parkir, membengkaknya tingkat konsumsi energi, penumpukan sampah, peningkatan angka kriminal, dan masalah-masalah sosial lainnya.Solusi cerdas dilakukan dengan penerapan dan kolaborasi ekosistem kota yang masuk ke dalam konsep Smart City. Dalam konsep solusi Smart City, pemerintah, swasta, akademisi maupun masyarakat ikut terlibat untuk menjadikan kota menjadi lebih baik.
Pemodelan Fuzzy ME-MCDM untuk Menentukan Kelayakan Komersialisasi Produk
Authors: Mujiyanto Mujiyanto , Utami Ema , Fatta Hanif Al
Published: October 2021

INTISASISebagai perusahaan yang bergerak di bidang Teknologi informasi lainnya PT Gits Solution  dapat menganalisa dahulu produk yang dikeluarkan akan diterima oleh konsumen atau tidak. Dalam pemilihan produk teknologi menggunakanmetode Fuzzy ME-MCDM untuk menentukan teknologi pertanian. Fuzzy Multicriteria Decision Making Methods (MCDM) adalah sebuah metode yang mengacu pada proses melihat, memprioritaskan, melakukan perangkingan, untuk memilih alternative dengan kriteria yang bersifat independent, incommensurate atau conflicting. Dalam penelitian ini pengujian dilakukan dengan membandingkan hasil dari keluaran sistem dengan perhitungan secara manual,  hasil dari perbandingan itu membuktikan bahwa perhitungan secara manual dan sistem sama.Kata kunci— SPK; fuzzy; fuzzy ME-MCDM ABSTRACTIn order to compete with other companies , PT Gits Solution must analyze the products issued will be accepted by consumers or not. In the selection of technology products using the ME-MCDM Fuzzy method to determine the selection of technology products. Fuzzy Multi ExpertMulticriteria Decision Making Methods (ME-MCDM) is a method that refers to the process of viewing, prioritizing, ranking, choosing alternatives with independent, incommensurate or conflicting criteria with many expert. In this research, testing metode by comparison output from system and ouput from manual calculation..Kata kunci—  DSS; fuzzy; fuzzy MEMCDM