bluuebunny/crossref_metadata_2025 huggingface dataset:
Socioeconomic inequality in compliance with precautions and health behavior changes during the COVID-19 outbreak: an analysis of the Korean Community Health Survey 2020
Authors: Lee Ga Bin , Jung Sun Jae , Yiyi Yang , Yang Jea Won , Thang Hoang Manh , Kim Hyeon Chang
Published: January 2022

OBJECTIVES: This study examined socioeconomic inequalities in compliance with precautions and health behavior changes during the coronavirus disease 2019 (COVID-19) outbreak using a representative Korean sample.METHODS: This exploratory study utilized around 210,000 participants aged ≥25 years in the Korean Community Health Survey 2020. Socioeconomic status was measured with educational attainment and household income. Outcomes included non-compliance with 8 precaution measures and deterioration in 6 health behaviors. The relative inequality index (RII) was calculated to quantify the degree of inequality by education and income level. RII values >1.0 indicate that deprived people have a higher frequency of health problems, and RII values <1.0 conversely indicate a higher frequency of health problems in more advantaged groups.RESULTS: People with lower education or income levels tended to have higher rates of non-compliance with COVID-19 safety precautions (RII range, 1.20 to 3.05). Lower education and income levels were associated with an increased smoking amount (RII=2.10 and 1.67, respectively) and sleep duration changes (RII=1.21 and 1.36, respectively). On the contrary, higher education and income levels were associated with decreased physical activity (RII=0.59 and 0.77, respectively) and increased delivery food consumption (RII=0.27 and 0.37, respectively). However, increased alcohol drinking was associated with lower education and income levels in younger men (RII=1.73 and 1.31, respectively), but with higher levels in younger women (RII=0.73 and 0.68, respectively).CONCLUSIONS: Our findings suggest the need to develop customized strategies, considering the characteristics of the target population, to decrease the burden and impact of the COVID-19 outbreak.
Health Problems Encountered by Short-Term European Volunteers in a Nongovernmental Organization in Cambodia
Authors: Cortes Jaime Barrio , Muñoz Claudia Rojas , Benito Miguel Ángel Acosta , Baz Ángela Hidalgo , Merino Ángel Vicario , Beca Martínez María Teresa , López Montserrat Ruiz
Published: January 2022

Short-term volunteers are susceptible to a wide spectrum of morbidities, mostly infectious diseases preventable with general hygiene and preventive measures. This study aimed to identify the health problems encountered by European short-term volunteers collaborating for 1 month with a nongovernmental organization (NGO) in Cambodia and to describe their characteristics. A prospective, descriptive observational study was conducted on short-term volunteers who collaborated with an NGO in Cambodia during August 2018. Informed consent and sociodemographic, clinical, and preventative health-related questionnaire data were provided by 198 volunteers. The health problems encountered were confirmed in a primary care consultation with healthcare professionals. Univariate and bivariate analyses were performed. The median age of the volunteers was 22 years (interquartile range = 21–24), and 64% were women. Some (18.2%) had allergies, 8.6% had preexisting health conditions, and 10.6% were under regular treatment. A total of 77.3% visited a pretravel consultation clinic, 39.9% completed a specific pretravel health course, 21.7% took malaria prophylaxis, 92.4% received hepatitis A vaccination, and 82.3% received typhoid fever vaccination. Medical assistance was sought by 112 (57.3%) of the volunteers. The average number of health problems was 2.5 (standard deviation = 1.5), and the total number of health problems attended by the medical team was 279. The most common health problems were upper respiratory infections (12.2 per 1,000 person-days), wounds (10.8 per 1,000 person-days), and diarrhea (6.3 per 1,000 person-days). Short-term volunteers experienced a high rate of health problems during their stay in Cambodia, but most of the problems were mild and preventable and resolved quickly. Pretravel consultation and specific pretravel health training seemed to increase disease awareness.
Household Bird Ownership is Associated with Respiratory Illness among Young Children in Urban Bangladesh (CHoBI7 Program)
Authors: Parvin Tahmina , Thomas Elizabeth D. , Endres Kelly , Leung Daniel , Sazzadul Bhuyian , Minhaj Md , Hasan Tasdik , Zohura Fatema , Masud Jahed , Monira Shirajum , Perin Jamie , Alam Munirul , Faruque Abu , George Christine Marie
Published: January 2022

There is limited evidence on the association between animal ownership and respiratory illness among young children in low- and middle-income countries. In this study, we examined the association between animal ownership and respiratory illness among children younger than 5 years of age enrolled in a prospective cohort study in urban Bangladesh. This prospective cohort study enrolled 884 participants younger than 5 years of age in Dhaka, Bangladesh. At baseline, trained research assistants administered caregivers of children younger than 5 years of age a questionnaire on household animal ownership. Animal ownership was defined as owning chickens, birds other than chickens, cats, and dogs. Respiratory surveillance was conducted monthly for children based on caregiver-reported coughing, rapid breathing, and difficult breathing in the past 2 weeks during the 12-month study period. At baseline, 48% of children (424 of 884) had reports of coughing, 5% (40 of 884) had difficulty breathing, 3% (25 of 884) had rapid breathing, and 49% (431 of 884) had reports of any of these three respiratory symptoms. Seventeen percent of children (151 of 884) resided in a household that owned an animal. Children residing in households reporting bird ownership had a significantly greater odds of coughing (odds ratio, 1.14; 95% CI, 1.02–1.28) and any of the three respiratory symptoms in the past 2 weeks (odds ratio, 1.14; 95% CI, 1.02–1.28). Household bird ownership was associated with respiratory illness in young children. These findings suggest that interventions aiming at reducing young children’s exposure to domestic animals should extend to include birds other than chickens.
Metabolic Processes Are Differentially Regulated During Wild-Type and Attenuated Dengue Virus Infection in Aedes aegypti
Authors: Siriphanitchakorn Tanamas , Modahl Cassandra , Manjunatha Kini R. , Ooi Eng Eong , Choy Milly
Published: January 2022

Successful completion of the dengue virus (DENV) life cycle in its mosquito vectors is important for efficient human–mosquito–human cycle of transmission, but the virus–mosquito interactions that underpin this critical event are poorly defined. To understand the virus–host interactions that determine viral infection by Aedes aegypti, the principal DENV vector, the authors compared transcriptomic changes in the head/thorax of the mosquito after intrathoracic infection with the wild-type DENV2 16681 strain and its attenuated derivative, PDK53. Using high-throughput RNA-sequencing, the authors identified 1,629 differentially expressed genes (DEGs) during 16681 infection, compared with only 22 DEGs identified during PDK53 infection, indicating that 16681 infection triggers a more robust host transcriptomic response compared with PDK53 infection. The authors further found that 16681 infection, but not PDK53 infection, altered metabolism in these heads/thoraces. Altogether, our findings reveal differential regulation of metabolic processes during wild-type and attenuated DENV infection, and suggest the need for future work to study the role of metabolic processes in determining DENV infection and replication in its mosquito vectors.
Point-of-Care Ultrasound by Nonexpert Operators Demonstrates High Sensitivity and Specificity in Detecting Gallstones: Data from the Samoa Typhoid Fever Control Program
Authors: Hoffman Seth , Desai Sachin , Sikorski Michael , Fatupaito Glenn , Tupua Siaosi , Thomsen Robert , Rambocus Savitra , Nimarota-Brown Susana , Punimata Linatupu , Sialeipata Michelle , Tuilagi Chandler , Han Jane , Robins-Browne Roy , Naseri Take , Levine Myron
Published: January 2022

Approximately 90% of chronic typhoid carriers with persistent Salmonella enterica serovar Typhi (S. Typhi) gallbladder infection have gallstones. In Samoa, where typhoid fever has been endemic for many decades, risk factors predisposing to the development of gallstones are increasing among adults. The Samoa Typhoid Fever Control Program dispatches a “Typhoid Epidemiologic SWAT Team” to perform a household investigation of every blood culture-confirmed case of acute typhoid fever. Investigations include screening household contacts to detect chronic carriers. Following limited training, two nonexpert ultrasound operators performed point-of-care ultrasound (POCUS) on 120 Samoan adults from August to September 2019 to explore the feasibility of POCUS to detect individuals with gallstones during household investigations and community screenings. POCUS scans from 120 Samoan adults in three cohorts (28 food handlers, two typhoid cases and their 18 household contacts, and 72 attendees at an ambulatory clinic) were reviewed by a board-certified radiologist who deemed 96/120 scans (80%) to be interpretable. Compared with the radiologist (gold standard), the nonexpert operators successfully detected 6/7 Samoans with gallstones (85.7% sensitivity) and correctly identified 85/89 without gallstones (95.5% specificity). The proportion (24/120) of uninterpretable scans from this pilot that used minimally trained clinicians (who are neither radiologists nor ultrasound technicians) indicates the need for additional training of POCUS operators. Nevertheless, this pilot feasibility study engenders optimism that in the Samoan setting nonexperts can be trained to use POCUS to diagnose cholelithiasis, thereby helping (along with stool cultures and Vi serology) to identify possible chronic S. Typhi carriers.
Business Excellence Models and External Stakeholders Influencing the Late Adoption of Quality Management Systems in Zimbabwe Hotel Industry
Authors: Mwenje Judy , Basera Vitalis
Published: January 2022

The main objective of this paper was to determine business excellences and stakeholders influencing the late adoption of quality management systems in Zimbabwe hotel industry and suggest recommendation that encourages adoption of quality management systems. The study followed a multi case study approach, with 9 hotels from Harare chosen purposively to represent the hotel industry in Zimbabwe. In-depth interviews and focus group discussions were used to get data from hotel managers, key stakeholders and staff members. Directed content analysis was used to analyse data. The results revealed that hotels in Zimbabwe do not follow internationally recognised business excellence models. Five key external stakeholders – banks, Zimbabwe Tourism Authority, Tourism Business Council of Zimbabwe, Hospitality Association of Zimbabwe, tourists and Standard Association of Zimbabwe were identified to be influencing adoption of quality management systems in the hotel industry. The study recommended for the establishment of local business excellence models that are specific to hotels in Zimbabwe and for the government to avail accessible revolving bank loans for the hotels to invest towards quality management systems. The determination of the external stakeholders influencing late adoption of quality management systems in the hotel industry and use of business excellence models will help improve the adoption of QMSs under Zimbabwe's National Development Strategy 1 (NDS) to realise Vision 2030 "Towards a Prosperous and Empowered Upper Middle-Income Society".
Using SWOT Analysis for Defining Strategies of Mobile Learning
Authors: Grčić Matija , Picek Ruben
Published: January 2022

After exploring the concept of m-learning, this paper focuses on defining a SWOT analysis of mobile learning with detail discussion of each element. Finding important relationships by matching well know SWOT variables in a systematic fashion is a next step of research where using a algorithm which can provide a help in defining appropriate strategy. The result of our research is a conceptual framework for defining strategies for mobile learning, which will help primarily universities or other educational institutions in estimating their own position and creating the strategy for adopting m-learning into their curriculums which make a valuable contribution for the future research in this area.
Object Identification by Signal Gain and Correlation
Authors: Su Ching-Liang
Published: January 2022

In this study, “ring rotation invariant transform” techniques are used to add more salient feature to the original images. The “ring rotation invariant transform” can solve image rotation problem, which transfers a ring signal to several signal vectors in the complex domain, whereby to generate invariant magnitude. Matrix correlation is employed to combine these magnitudes to generate the various discriminators, by which to identify objects. For managing image-shifting problem, one pixel in sample image is compared with surrounding pixels of unknown image. The comparison approaching in this study is by the basis of pixel-to-pixel-comparisons.
Data Analysis for microRNA and Related Diagnoses
Authors: Namiot Eugenia , Khakhin Maxim
Published: January 2022

MicroRNAs are non-coding molecules that play a significant role in the development of the disease. MicroRNAs can act as biomarkers or independently lead to the development of a disease. Due to the large numbers of microRNAs, most of the current works focus on the creation of a new way of microRNA clustering or grouping. Today, there are a huge number of different databases that distribute open microRNAs into groups. The problem is that there is no way to evaluate such databases and created clusters. In this work, we propose a new method for assessing the distribution of microRNAs in a cluster, which in the future can be used to predict new sequential ones capable of causing disease. The proposed method can also be used for a better understanding of the mechanisms of various diseases. Since cardiovascular diseases rank first in terms of the number of deaths, they were chosen as the analyzed ones. The Human microRNA Disease Database was used as an analyzed database in this work. The obtained results show that the proposed method can analyze the created databases and can be used in further practice. The proposed model makes it possible to predict new microRNAs for given diagnoses.
Study of Hematological Characteristics and Mineral Metabolism of Moscow Black Chickens in the Process of Acclimatization in the Astrakhan Region
Authors: Sergeevna Bratashova Tatyana , Ivanovna Zakharkina Natalya , Nikolaevna Shcherbakova Elena , Aleksandrovich Safonov Vladimir
Published: January 2022

The study of indicators characterizing the processes associated with the acclimatization of birds in new biogeochemical conditions is of interest in connection with the prospects of the poultry industry in the Astrakhan Region, where the lack of important trace elements in soils and plant feeds: Se, I, Co, is observed. In the presented study, the main hematological and biochemical parameters of blood and mineral metabolism were determined in 2 groups of chickens of the Moscow black breed: imported to the Astrakhan Region from Moscow and kept in the Moscow Region. The analyses revealed strong differences (P<0.01) in indicators of two groups. The acclimatized birds were characterized by low levels of red blood cells and hemoglobin in the blood, as well as a higher content of white blood cells than in the second group. The chickens had impaired lipid and protein metabolism. A 71.3% increase in the level of total sugar most likely indicated a stress state of birds. Compared with the chickens in the Moscow Region, the level of calcium in their blood was 32.4% lower, phosphorus – 12.9%. To a large extent, a decrease in the levels of iodine and selenium – by 5.3 and 5.2 times, respectively, was observed. Thus, in the absence of external changes, acclimatized chickens are subject to a latent form of combined I- and Se-hypomicroelementosis. At the same time, a drop in egg productivity by 19% is the recorded fact. The necessity to adapt to the new climatic conditions of the Lower Volga region for birds, combined with a lack of important trace elements, can cause increased oxidative stress in acclimatized birds. Based on the results of the study, the use of feed additives that make up for the deficiency of necessary trace elements is recommended.
Effectiveness of Cordyceps sp. and Beauveria Bassiana Against Large Cabbage-heart Caterpillar, Crocidolomia Pavonana Fabricius (Lepidoptera: Crambidae)
Authors: Permana Agus Dana , Marlinda Sally , Susanto Agus , Leksono Amin Setyo
Published: January 2022

Crocidolomia pavonana Fabr. (Lepidoptera: Crambidae) is a major pest on various cabbage crops in Indonesia. Various insecticides have been used to control this insect pest including several entomopathogenic fungi, and this cabbage caterpillar has become resistant to various insecticides. In order to develop insecticides from entomopathogenic fungi, species or varieties from natural area such as forest are needed. A bioassays of Cordyceps sp. and Beauveria bassiana has been carried out in the laboratory. Inoculum of Cordyceps sp. obtained from the Dipterocarpaceae forest in South Kalimantan, Indonesia recovered from dead ants by the mycelium of Cordyceps sp. Four concentration of Cordyceps sp. and Beauveria bassiana inoculum and tween80 as a control were tested against 3rd instar larvae of C. pavonana with five replications. Field efficacy trial was carried out in a screen house (8 x 12 M2) using Chinese cabbage plants (Brassica juncea) aged 28 days after sowing, with a spacing of 0.4 M between rows. Three formulation of Cordyceps sp. and tween80 as a control were used with 6 replications. The result of the bioassays in the laboratory showed that Cordyceps sp. with concentration of 1 x 107 conidia mL-1 was able to give 100% mortality od C. pavonana larvae, while B. bassiana with the same concentration caused morality of C. pavonana larvae of 98.33%, although statistically not significantly different. The results of probit analysis also showed that LC90 Cordyceps sp. against cabbage caterpillar larvae was 1.57 x 106 conidia mL-1, while B. bassiana required a concentration of 2.6 x 106 conidia mL-1 to reach the LC90 value. The results of filed trial showed that the formulation of Cordyceps sp. 1 x 107 conidia mL-1 using palm oil cooking oil was able to give an average mortality of 86.7%, and significantly higher (P<0.05) than the other treatment. The results of this study indicate that the inoculum of Cordyceps sp. from Dipterocarpaceae forest is very promising to be developed as an insecticide to control C. pavonana in cabbage
Advantages and Limits of Remote Care and Stress Management Experienced by Mothers of Students with Specific Learning Disabilities During the Covid-19 Period
Authors: Leqouider Zhour , Abidli Zakaria , Ouali Bahae , Kamal Latifa , El Turk Joumana , Touri Bouzekri , Khyati Abdrrahim
Published: January 2022

These instructions give you guidelines for preparing papers. Use this document as a template if you are using Microsoft Word. Otherwise, use this document as an instruction set.. Define all symbols used in the abstract. Do not cite references in the abstract. Do not delete the blank line immediately above the abstract; it sets the footnote at the bottom of this column. Page margins are 1,78 cm top and down; 1,65 cm left and right. Each column width is 8,89 cm and the separation between the columns is 0,51 cm. Abstract-Introduction : The period of confinement due to the COVID-19 pandemic has harmful consequences on the psychological state of parents and their children, especially those with psychological or neurocognitive problems. The care of these children plays a primordial role in their development, particularly during the COVID-19 period. For this reason, our objective is to assess the state of stress among mothers of children with learning disabilities during the COVID-19 period in Morocco, as well as the support of these children. Materials and methods : This is a cross-sectional study that was conducted during the period from April to June 2020. To realise it, we used a investigation form which contains three parts. To evaluate the state of stress in mothers, we used the "PSS10d" scale adapted to the Moroccan context. The target population is composed of mothers of children with learning disabilities who are being monitored by Moroccan Association for Learning Disorders and Difficulties (MALDD) in Casablanca. Results : During the period of confinement, only 13% (n=15) of mothers reported that their children "Dys" had benefited from remote remediation by specialists According to the Odds Ratio calculation, the risk factors influencing the care of "Dys" children during this period of confinement are: lack of cooperation from the child (Odds Ratio= 16.8; IC95%=[3.5-79]). 1]; P-value=0.001), the educational level of mothers (Odds Ratio= 9.4; IC95%=[2.4-35.7]; P-value=0.001), the economic situation (Odds Ratio= 5.1; IC95%=[1.5-17.4]; P-value=0.01) and technical problems (Odds Ratio= 5.1; IC95%=[1.5-17.4]; P-value=0.01). Conclusion : According to our results, we noticed that the psychological state of the mothers is influenced by the remote care of the "Dys" children. For this the responsible authorities in Morocco must support this population.
Signal Model and Parameter Estimation for Colocated Mimo Radar
Authors: Ahmadi Moein , , Mohamed-Pour Kamal
Published: January 2022

In this paper, we consider the signal model and parameter estimation for multiple-input multiple-output (MIMO) radar with colocated antennas on stationary platforms. Considering internal clutter motion, a closed form of the covariance matrix of the clutter signal is derived. Based on the proposed closed form and low rank property of the clutter covariance matrix and by using the singular value decomposition, we have proposed a subspace model for the clutter signal. Following the proposed signal model, we have provided maximum likelihood (ML) estimation for its unknown parameters. Finally, the application of the proposed ML estimation in space time adaptive processing (STAP) is investigated in simulation results. Our ML estimation needs no secondary training data and it can be used in scenarios with nonhomogeneous clutter in range.
A Model for Anomaly Detection Using the Metaheuristic Methods
Authors: Ebrahimi Sara Haj , Khatibi Amid
Published: January 2022

Today detection of new threats has become a need for secured communication to provide complete data confidentiality, integrity and availability. Design and development of such an intrusion detection system in the communication world, should not only be new, accurate and fast but also effective in an environment encompassing the surrounding network. In this paper, a new approach is proposed for network anomaly detection by combining neural network and clustering algorithms. We propose a modified Self Organizing Map algorithm which initially starts with null network and grows with the original data space as initial weight vector, updating neighborhood rules and learning rate dynamically in order to overcome the fixed architecture and random weight vector assignment of simple SOM. New nodes are created using distance threshold parameter and their neighborhood is identified using connection strength and its learning rule and the weight vector updating is carried out for neighborhood nodes. The Fuzzy k-means clustering algorithm is employed for grouping similar nodes of Modified SOM into k clusters using similarity measures. Performance of the new approach is evaluated with standard bench mark dataset. The new approach is evaluated using performance metrics such as detection rate and false alarm rate. The result is compared with other individual neural network methods, which shows considerable increase in the detection rate and 1.5% false alarm rate.
Reliable Centralized Control of PMSM
Authors: Zazi M. , Hajji Y. , Khaldi N. , Elalami N.
Published: January 2022

In this paper, we introduce the development methodology of a reliable centralized control applied to a synchronous permanent magnet machine. The proposed system is nonlinear, we linearize around a point of application. The resulting model will then be used to reproduce the dynamic behavior of the machine for a reliable control. The controller is based on the standard h infinite to increase performance, reduce measurement noise, and to tolerate the outage of certain sensors. To illustrate the results, we made a comparison between a standard state feedback control and reliable h infinite robust control. The simulation results shows, that the system in case of technical placements poles loses classic performance in the presence of an outage, that the reliable centralized robust control remain satisfactory performance even in the presence of outage.
Ascertaining Important Features of the JAPROSIM Simulation Library
Authors: Belattar Brahim , Bourouis Abdelhabib
Published: January 2022

This paper describes important features of JAPROSIM, a free and open source simulation library implemented in Java programming language. It provides a framework for building discrete event simulation models. The process interaction world view adopted by JAPROSIM is discussed. We present the architecture and major components of the simulation library. In order to ascertain important features of JAPROSIM, examples are given. Further motivations are discussed and suggestions for improving our work are given.
Vector Control and Modeling of Modular Multilevel High Voltage Converter for Rail Vehicle Traction
Authors: Zheng Yu , Yang Changxiu , Peng Tiefeng , Zhang Liujian
Published: January 2022

Rail transit plays an important role in the social and economic life of China and even all countries in the world, especially some populous countries or regions. The traction drive system of rail vehicle provides three-phase AC with adjustable voltage and frequency for the traction motor, controls the speed and torque of the traction motor, and then controls the operation of the vehicle. The modular multilevel converter has the advantages of low harmonic, good power quality of output waveform, high reliability, no input filtering and power compensation, and is suitable in the field of frequency conversion. In this work, the open-loop scalar control and vector closed-loop control of modular multi-level high-voltage inverter were adopted. It was found that driven by modular multi-level variable frequency vector control system, asynchronous motor not only has less harmonic content of voltage and current waveform, but also its speed regulation characteristics have been improved.
Radiation Pattern of a Microstrip Antenna on a Trapezoidal Substrate
Authors: Mishra Suchana , Mishra Rabindra Kishore , Patnaik Srikanta
Published: January 2022

This paper deals with a rectangular microstrip antenna on a trapezoidal substrate. It finds radiation pattern of the antenna using the concept of fractional cross product. Results show that as the fraction goes from 1 to 0.1, the direction of null in the H-plane moves from end fire towards broad side. Also, a back-lobe starts to appear in the H-plane.
Big Data Mining Method of Marketing Management Based on Deep Trust Network Model
Authors: Wang Yafei
Published: January 2022

Through big data mining, enterprises can deeply understand the consumer preferences, behavior characteristics, market demand and other derived data of customers, so as to provide the basis for formulating accurate marketing strategies. Therefore, this paper proposes a marketing management big date mining method based on deep trust network model. This method first preprocesses the big data of marketing management, including data cleaning, data integration, data transformation and data reduction, and then establishes a big data mining model by using deep trust network to realize the research on the classification of marketing management data. Experimental results show that the proposed method has 99.08% accuracy, the capture rate reaches 88.11%, and the harmonic average between the accuracy and the recall rate is 89.27%, allowing for accurate marketing strategies.
Design and Implementation of Image Edge Detection Algorithm on FPGA
Authors: Shylashree N. , Naik M Anil , Mamatha A. S. , Sridhar V.
Published: January 2022

Image processing is an important task in data processing systems for applications such as medical sectors, remote sensing, and microscopy tomography. Edge recognition is a sort of image division method that is used to simplify the image records so as to reduce the amount of data to be processed. Edges are considered the most important in image processing because they are used to characterize the boundaries of an image. The performance of the Canny edge recognition algorithm remarkably surpasses the present edge recognition technology in various computer visualization methods. The main drawback of using Canny edge boundary is that it consumes lot of period due to its complex computation. In order to tackle this problem a hybrid edge recognition method is proposed in block stage to locate edges with no loss. It employs the Sobel operator estimate method to calculate the value and direction of the gradient by substituting complex processes by hardware cost savings, traditional non-maximum suppression adaptive thresholding block organization, and conventional hysteresis thresholding. Pipeline was presented to lessen latency. The planned strategy is simulated using Xilinx ISE Design Suite14.2 running on a Xilinx Spartan-6 FPGA board. The synthesized architecture uses less hardware to detect edges and operates at maximum frequency of 935 MHz.
Multiple IoT based Network Attacks Discrimination by Multilayer Feedforward Neural Networks
Authors: Ivanova Vanya
Published: January 2022

In this paper a new neural model for detection of multiple network IoT-based attacks, such as DDoS TCP, UDP, and HHTP flood, is presented. It consists of feedforward multilayer network with back propagation. A general algorithm for its optimization during training is proposed, leading to proper number of neurons in the hidden layers. The Scaled Gradient Descent algorithm and the Adam optimization are studied with better classification results, obtained by the developed classifiers, using the latter. Tangent hyperbolic function appears to be proper selection for the hidden neurons. Two sets of features, gathered from aggregated records of the network traffic, are tested, containing 8 and 10 components. While more accurate results are obtained for the 10-feature set, the 8-feature set offers twice lower training time and seems applicable for real-world applications. The detection rate for 7 of 10 different network attacks, primarily various types of floods, is higher than 90% and for 3 of them – mainly reconnaissance and keylogging activities with low intensity of the generated traffic, deviates between 57% and 68%. The classifier is considered applicable for industrial implementation.
Post-pandemic scenarios and design strategies for public spaces transformation
Authors: Galluzo Laura , Borin Ambra
Published: January 2022

Almost two years later of a pandemic condition, one thing is sure: the pandemic will change permanently the world and its systems. Nowadays, the reflection on public space is crucial within a more sustainable and inclusive development at urban scale, amplified also by the ongoing experience of the pandemic that still presents. Public space is a real opportunity to test new urban and social models, thus becoming a principal catalyst for positive changes in the entire urban context. It is therefore necessary to re-establish a relationship between the public space and its inhabitants, providing a system of proximity by highlighting the human and non-human dimensions and consequently connecting services, relationships, and opportunities. Acting in public space is the first step in the development of innovative urban transformations, generated by collaborative phenomena working in the collective interest. The use of participatory practices within the design processes favors the reconnection between people and territory, generating a shared sense of belonging that leads to taking care of one's own places. The reversibility of the intervention and its adaptability are key characteristics that allow experimenting with new ways of experiencing public spaces and responding to unforeseen experiences, thus accommodating the inevitable changes in society.

This scientific contribution aims to set forward distinctive points of view on the planning strategies implemented in the pandemic and post-pandemic period to achieve intelligent transformations on a small and large urban scale with an impact from short to long-term; hence shaping the future cities.
Des-diseñando el especismo: entrelazamientos entre los otros animales, pandemia y humanas
Authors: Martínez Morant Mara
Published: January 2022

Durante esta pandemia mundial del Covid-19, probablemente causada por la explotación de los otros animales, la relación de la humanidad con otras especies continúa prácticamente sin cambios, por ejemplo, la carne sigue su imparable ritmo de ventas ¿Qué posibilita que la mayoría de las humanas continúen sus vidas cotidianas con normalidad en lugar de cuestionar su relación o uso de los animales no humanos? Sin duda, esa construcción social llamada especismo. El especismo se define como la asunción de la superioridad humana sobre el resto de individuos vivos, conducente a la explotación de los otros animales. Es un sesgo que se extiende a través de las diferentes culturas y hace que las humanas no puedan o no quieran, conectar la explotación animal con las consecuencias resultantes, incluida la catástrofe actual. Las enfermedades que se originan en animales, llamadas zoonosis, han causado casi todas las pandemias en la historia de la humanidad. Sin embargo, esa relación causal queda en gran medida relegada a discusiones científicas y activistas que no acaban de impregnar el debate colectivo. La renuencia generalizada a examinar la causa o la raíz de la pandemia, está creando una desconexión en el discurso predominante.

Con esta investigación iniciamos el itinerario para establecer un discurso tentacular de carácter socio-científico, a partir del análisis documental que nos permitirá, en un segundo tiempo, realizar una etnografía acerca de la importancia que tienen los otros animales en la vida humana. El propósito inicial es, pues, documentar procesos que muestren cómo el especismo naturaliza el uso y explotación de los otros animales poniendo de manifiesto que los patógenos zoonóticos, que se describen como saltando a las humanasa causa del contacto o mezcla con los otros animales, son la excusa para neutralizar el rol humano y eximirle de su responsabilidad, amagando, a su vez, su carácter explotador.
Editorial
Authors: Marzo Jorge Luís , Rispoli Ramon
Published: January 2022

Tal y como escribe Donna Haraway (2019), en los entramados semiótico-materiales en los que estamos imbricados no importa solo qué historias producen los mundos, sino también qué mundos producen las historias, o cómo lo diría de Sousa Santos, qué metáforas necesitamos para hablar con el mundo y qué metáforas emplea la vida para relacionarse con los agentes que la perfilan. Las historias que construimos para pensar el mundo -y todo lo que lo compone, incluída la Covid-19- no son simples representaciones, sino verdaderas “tecnologías del pensar dotadas de materialidad y de eficacia” (Haraway, 2003, p. 335) que nos invitan a actuar de una manera u otra en el mundo mismo. Esperamos que los artículos de este número de Inmaterial puedan tener, como tecnologías de este tipo, toda la eficacia que se proponen
Xét nghiệm phân mảnh DNA tinh trùng và khuyến cáo trong thực hành lâm sàng
Authors: Lê Thị Bích Phượng , Nguyễn Thị Phương Dung
Published: January 2022

Tinh dịch đồ là xét nghiệm đầu tay đánh giá khả năng sinh sản nam giới, nhưng xét nghiệm này không thể phản ánh chính xác những biến đổi vật chất di truyền trong nhân tinh trùng, cũng như không thể tiên lượng được kết cục điều trị trong hỗ trợ sinh sản. Tính toàn vẹn DNA tinh trùng đóng vai trò quan trọng cho sự phát triển của phôi cũng như là dấu hiệu sinh học đại diện cho một tinh trùng khỏe mạnh. Do đó, các kỹ thuật xét nghiệm phân mảnh DNA tinh trùng ngày càng được thực hiện phổ biến. Hiện nay, một số kỹ thuật thường được sử dụng để đánh giá phân mảnh DNA tinh trùng bao gồm TUNEL (Terminal deoxynucleotidyl transferase dUTP nick end labeling), Comet (Single cell gel electrophore sis), SCD (Sperm chromatin dispersion) và SCSA (Sperm chromatin structure assay). Cho đến nay, vẫn chưa có khuyến cáo cụ thể cho chỉ định thực hiện xét nghiệm phân mảnh DNA tinh trùng. Bài tổng quan nhằm giới thiệu về các kỹ thuật xét nghiệm phân mảnh DNA tinh trùng cũng như tổng hợp khuyến cáo cho chỉ định thực hiện xét nghiệm này.
Giá trị dự báo nguy cơ sinh non của chiều dài cổ tử cung trên siêu âm ở sản phụ song thai tại Bệnh viện Phụ sản Hải Phòng
Authors: Bùi Văn Hiếu , Nguyễn Thị Hoàng Trang , Nguyễn Văn Quân
Published: January 2022

Nghiên cứu mô tả cắt ngang trên 92 sản phụ mang song thai tại Bệnh viện Phụ sản Hải Phòng từ 01/01/2019 đến 31/05/2020. Trong nghiên cứu, ngưỡng cut – off của chiều dài CTC để dự báo nguy cơ sinh non < 37 tuần là 33,5mm. Nhóm chiều dài CTC < 33,5mm có nguy cơ sinh non cao hơn 4 lần so với nhóm sản phụ song thai có chiều dài CTC ≥ 33,5mm với giá trị AUC là 0,64, độ nhạy là 47,1%, độ đặc hiệu là 82,8%. Ở nhóm có tiền sử sinh non trước đó, nguy cơ sinh non trong lần mang thai này cao hơn gấp 20 lần (p < 0,05). Về kết quả dự phòng sinh non: Tuổi thai trung bình của đối tượng nghiên cứu là 35,76 ± 3,25 tuần; trong đó tỉ lệ tuổi thai ≥ 37 tuần, < 28 tuần và 34 - 37 tuần, lần lượt là 63,1%, 5,4% và 23,9%. Sử dụng các biện pháp dự phòng sinh non làm giảm nguy cơ sinh non lên đến 83,6% (p < 0,05). Không có sự khác biệt về hiệu quả dự phòng sinh non giữa các phương pháp cũng như sử dụng đơn phương pháp và đa phương pháp dự phòng sinh non.
Đặc điểm nội mạc tử cung và các yếu tố liên quan trong chu kỳ thụ tinh nhân tạo
Authors: Trần Thị Như Quỳnh , Lê Minh Tâm , Lê Thị Thuận Mỹ , Cao Ngọc Thành
Published: January 2022

Mục tiêu: Tìm hiểu đặc điểm và các yếu tố liên quan đến tình trạng nội mạc tử cung trong chu kỳ thụ tinh nhân tạo, đồng thời khảo sát ảnh hưởng của độ dày nội mạc tử cung đến sự thành công của phương pháp.

Đối tượng và phương pháp nghiên cứu:Nghiên cứu mô tả cắt ngang các cặp vợ chồng vô sinh được điều trị bằng phương pháp thụ tinh nhân tạo bơm tinh trùng vào buồng tử cung, tại Trung tâm Nội tiết sinh sản và Vô sinh - Bệnh viện Trường Đại học Y - Dược Huế trong thời gian từ tháng 08 năm 2018 đến tháng 04 năm 2021. Sau khi thu thập thông tin hành chính, thăm khám lâm sàng và cận lâm sàng cho cặp vợ chồng hiếm muộn thỏa mãn tiêu chuẩn lựa chọn và tiêu chuẩn loại trừ, theo dõi nang noãn và thực hiện kỹ thuật bơm tinh trùng vào buồng tử cung, xét nghiệm beta-hCG máu sau bơm 2 tuần và siêu âm thai 2 tuần sau khi thử thai dương tính.

Kết quả: Phác đồ kích thích buồng trứng và việc bổ sung estrogen trong các chu kỳ theo dõi nang noãn tác động có ý nghĩa lên độ dày nội mạc. Độ dày nội mạc có mối liên quan đáng kể đến sự thành công của kỹ thuật bơm tinh trùng vào buồng tử cung. Ngưỡng độ dày nội mạc tử cung 8,65mm có thể tiên lượng kết quả có thai với độ nhạy là 61,5% và độ đặc hiệu là 63,5%, AUC = 61,6%, p < 0,05. Bên cạnh đó, một số yếu tố người vợ, độ tuổi của người chồng có ảnh hưởng bất lợi đến kết quả có thai.

Kết luận: Kích thích buồng trứng trong chu kỳ thụ tinh nhân tạo có liên quan đến độ dày của nội mạc. Đặc điểm độ dày nội mạc tử cung là một yếu tố có khả năng tiên lượng kết quả có thai sau thụ tinh nhân tạo.
Đặc điểm nồng độ CA-125, beta-hCG và progesterone huyết thanh trong thai lạc chỗ
Authors: Trần Thị Ngọc Bích , Cao Ngọc Thành
Published: January 2022

Mục tiêu: Khảo sát giá trị CA-125, β-hCG và progesterone huyết thanh trong các trường hợp thai lạc chỗ.

Đối tượng và phương pháp nghiên cứu: Nghiên cứu bệnh chứng trên 42 trường hợp thai lạc và 42 trường hợp thai trong tử cung được quản lý tại Bệnh viện Trường Đại học Y - Dược Huế từ 05/2019 đến 05/2020. Chẩn đoán xác định thai lạc chỗ dựa vào kết quả phẫu thuật và giải phẫu bệnh. Nhóm chứng là các trường hợp đơn thai phát triển bình thường trong tử cung, tương đồng tuổi thai. Nồng độ CA-125 và β-hCG, progesterone huyết thanh khảo sát theo các nhóm tuổi thai, < 6 tuần, 6 - 7 tuần, và ≥ 8 tuần.

Kết quả: Nồng độ CA-125 ở nhóm thai lạc chổ là 23,8 U/ml (11,6 - 59,4), thấp hơn nhóm thai trong tử cung 70,1 U/ml (35,0 - 146,0), p < 0,001. Nồng độ β-hCG và progesterone ở nhóm thai lạc chỗ thứ tự là 2570,0 mUI/ml (42,8 - 94579,0) và 9,1 ng/ml (0,7 - 29,8), các giá trị này đều thấp hơn so với nhóm thai trong tử cung, tương ứng là 18357,5 mIU/ml (4622,0 - 157985,0) và 26,7 ng/ml (20,4 - 37,1), p < 0,001. Ở nhóm thai lạc chổ, nồng độ CA-125 không có sự khác biệt có ý nghĩa thống kê theo tuổi thai, ở nhóm < 6 tuần, 6 - 7 tuần và nhóm ≥ 8 tuần tương ứng là 23,2 U/ml (11,6 - 59,4), 23,6 U/ml (15,9 - 48,9) và 23,3 U/ml (20,5 - 32,8), p = 0,08. Trong khi đó, ở nhóm thai phát triển trong tử cung, nồng độ CA-125 tăng dần theo tuổi thai, nhóm < 6 tuần, 6 - 7 tuần và nhóm ≥ 8 tuần tương ứng 59,1 U/ml (35,0 - 83,3), 81,4 U/ml (75,7 - 90,1) và 101,1 U/ml (91,4 - 146,0), p = 0,02.

Kết luận: Nồng độ CA-125 và β-hCG, progesterone thấp hơn trong thai lạc chỗ so với thai trong tử cung. Giá trị CA-125 thay đổi không đáng kể theo tuổi thai trong nhóm thai lạc chỗ.
U tế bào hạt buồng trứng trong thai kỳ: nhân một trường hợp và điểm qua y văn
Authors: Huỳnh Minh Nhật , Phạm Chí Kông , Phan Tín , Nguyễn Phi Anh
Published: January 2022

Giới thiệu: Khoảng 24% khối u buồng trứng được phát hiện tình cờ trong mổ lấy thai, mặc dù đã có sự phát triển của kỹ thuật siêu âm tiền sản. Tuy tỷ lệ u buồng trứng ác tính là khá thấp nhưng chúng ta cũng không nên chủ quan vì khối u có thể là dạng giáp biên hoặc ung thư. Xuất độ ung thư buồng trứng được chẩn đoán trong thai kỳ thay đổi trong khoảng 0,0179 đến 0,11/1000. Trong đó có u tế bào hạt cực kỳ hiếm gặp, chúng được chia thành 2 thể: thể người lớn và thể thiếu niên. Các hiểu biết về mối liên quan giữa u tế bào hạt và quá trình thai nghén cũng như hiếm muộn vẫn còn có sự tranh cãi giữa các nhà sản khoa và ung thư. Chúng tôi báo cáo một trường hợp u tế bào hạt buồng trứng được phát hiện tình cờ ở thai phụ 44 tuổi. Bệnh nhân được chỉ định mổ lấy thai lúc 39 tuần và phát hiện khối u. Ca lâm sàng này được giới thiệu nhằm mục tiêu bàn luận lại cách điều trị và theo dõi bệnh.

Kết luận: Các lựa chọn điều trị và tổng quan về u hạt bào buồng trứng được bàn luận. Trong đó nổi bật là quá trình theo dõi đặc biệt lâu dài đối với một ung thư tái phát muộn như u tế bào hạt buồng trứng
LA AUTORREVISIÓN DE TEXTOS ESCRITOS: ¿URGENCIA PEDAGÓGICA YA RESUELTA?
Authors: Clavel Meralla Mildrey Caridad , Aguiar Márquez Inés Bárbara
Published: January 2022

La enseñanza y el aprendizaje del proceso de construcción de textos en las clases de lengua constituye todavía un problema a resolver, pero, aún más, lo es sobre quién debe revisar y si es posible autorrevisarse. Por tanto, esta investigación tiene como objetivo valorar los referentes teóricos y metodológicos sobre el proceso de autorrevisión de textos escritos, el papel que juega esta como parte del proceso de enseñanza - aprendizaje de la construcción textual y presentar los resultados de la validación de un sistema de guías de autorrevisión que ha sido aplicada a los estudiantes de onceno, duodécimo grado, instrumento factible para lograr autonomía en los estudiantes. Para ello se partió de los siguientes cuestionamientos: ¿cuáles son las conocimientos y habilidades de los estudiantes para autorrevisar su escritura?, ¿cuáles son los métodos o procedimientos asumidos por los profesores para enseñar a los estudiantes autorrevisarse sus textos escritos?, ¿cuáles son las barreras que encuentran los estudiantes en este tipo de ejercicio?, y ¿cuáles son las barreras que encuentran los profesores para enseñar a los estudiantes a autorrevisarse? ¿Cuán importante es enseñar y aprender autorrevisarse en tiempos en los que la educación, producto de la pandemia, es virtual o a distancia?
Readiness of Application of Electronic Medical Records in Health Services (Literature Study)
Authors: Masyfufah Lilis , Sriwati Mrs. , Ali Amir , Nudji Bambang
Published: January 2022

Background: Information and Communication Technology is advancing rapidly and has a major impact on all life, especially in the health sector, especially medical records. This is manifested in the Electronic Medical Record (EMR), which has now been further developed into an Electronic Health Record (EHR). This technology is used to replace or complement paper medical records. The purpose of this literature study is to determine the readiness to apply electronic medical records in health services.Methods: This study uses a literature study obtained from searching scientific research articles from the 2010–2020 range. Keywords used in this study is readiness and DOQ-IT. The database used comes from Google Sholar, Garuda, Neliti, and One Search. The search found 130 articles, then a critical appraisal process was carried out to produce 10 suitable manuscripts.Results: Various literatures found that the readiness to apply electronic medical records using the DOQ-IT method was influencedby 4 factors including the readiness of human resources, orgnizational culture, insfrastructure, and leadership governance. It can be concluded that the readiness for the application of  electronic medical recors in health services with the very ready category is 30%, the moderately ready category is 50%, then the unready category is 20%.Conclusions: From the discussion above, it can be concluded that EMR readiness in health services is categorized as quite ready (50%), very ready (30%), and not ready (20%).
Study of Incompleteness Medical Records of Inpatient in Appendicitis Cases at Dr. Reksodiwiryo Hospital Padang
Authors: Nasution Nurhasanah
Published: January 2022

Background: Incomplete filling of medical record files for inpatients at Dr. Reksodiwiryo hospital medical records will be describe health services and the quality of medical record services. Medical record quality services include the completeness of medical record files, accuracy in providing diagnosis and diagnosis codes, as well as speed in providing service information. The requirements for quality medical records must be accurate, complete, reliable, valid, timely, usable, common, comparable, guaranteed, and easy.Methods: This research method is a descriptive with a retrospective approach or looking at existing data. This study was carried out in September 2021. The population was 70 files cases of inpatient digestive surgery. Samples were taken from 27 files of inpatients with appendicitis cases.Results: From the research that has been done, the highest percentage of incomplete identification components is found on the gender item about 81.48%, the highest percentage of incomplete important report components is obtained on the medical resume and informed consent items about 11.1%. The highest percentage of incomplete authentication components was obtained in the nursing degree about 96.3%. The highest percentage of the components of the recording method was obtained by 59.3%, there are several blank sections about 16 files. The percentage of incomplete diagnostic codes and procedures is 100%  Conclusions: the researcher suggested that the hospital can have an Operational Standart on filling out the completeness of medical records files