bluuebunny/crossref_metadata_2025 huggingface dataset:
A Detailed Study on Halotolerant Bacteria Isolated from Food Salts Collected from Different Countries
Authors: BİRBİR Meral , HELVA Seyma , ÇAĞLAYAN Pınar
Published: June 2022

Twenty-five food salts, collected from seven-country, were examined for moisture contents and ash contents, pH values, total numbers of bacteria, and total numbers of bacteria halotolerant bacteria. The growth and biochemical reactions of halotolerant bacteria at different NaCl concentrations, pH, and temperature values were investigated. The efficacy of dry-heat sterilization and high-pressure steam sterilization for the inactivation of bacteria was examined using six food salts. Moisture contents, ash contents, and pH values of salts were respectively found as 2.3-3.7%, 95-97%, and 6.37-9.94. Total numbers of bacteria and halotolerant bacteria were detected as between 1-58 CFU/g and 1-40 CFU/g on Modified Nutrient Agar media, respectively. While bacteria were found in twenty salt samples, halotolerant bacteria were detected in seventeen samples. One hundred thirty- eight rod-shaped halotolerant bacteria were isolated from seventeen samples. One hundred eighteen and twenty isolates were found Gram-positive and Gram-negative, respectively. While 131 isolates were motile, seven isolates were observed as non-motile. All isolates grew in both absence of NaCl and presence of 10% NaCl, pH 5, 7, and 9, 24°C, and 37°C. Eighty-six isolates showed different pigmentations. Ammonia production was detected at sixty isolates. Catalase, oxidase, protease, lipase, amylase, caseinase were produced by 138, 83, 84, 48, 92, 100 isolates, respectively. Fifty-seven percent of halotolerant bacteria formed endospores. All bacteria in six salts were killed using both dry-heat sterilization (175oC for 2 hours) and high-pressure steam sterilization (121oC for 30 minutes). In conclusion, we suggest using dry-heat sterilization or high-pressure steam sterilization to kill Gram-negative halotolerant bacteria containing endotoxin and Gram-positive halotolerant bacteria with endospores in food salts to prevent food spoilage and foodborne diseases in humans.
Breast dermatoses: Dermatologists coming to the rescue of gynecologists
Authors: Kerrouch Hasna , Khalidi Meryem , Frikh Rachid , Hjira Naoufal , Boui Mohammed
Published: June 2022

More than any other organ of the body, the breasts represent the symbol of femininity for a woman. As with any part of the skin, they may be the seat of inflammatory, infectious, and/or tumor-related dermatoses. The severity of these dermatoses is related to the existence of an underlying malignant neoplasia with a risk of mastectomy, creating a high psychological impact. Through five observations, we discuss different diagnoses to be evoked in front of a breast dermatosis apart from the tumor pathology.
Dermoscopy of trichoblastic carcinoma
Authors: Jroundi Chaymae , Elloudi Sara , Dassouli Ryme , Douhi Zakia , Baybay Hanane , Mernissi Fatima Zahra
Published: June 2022

Trichoblastic carcinoma is a rare malignant adnexal tumor deriving from the hair follicle. It is clinically highly similar to basal cell carcinoma (BCC), with a greater malignant potential and a higher metastatic risk [1,2]. Histopathology reveals lobules of small, basaloid cells, cytonuclear pleiomorphism, and numerous mitoses with follicular differentiation [1]. It is important to differentiate these two entities as they follow different clinical courses and, therefore, require different treatments [2]. To our knowledge, dermoscopy of this tumor has only been described once, showing scattered specks of brown pigment in a trichoblastic carcinoma of the scalp [3]. Herein, we present a dermoscopic description of a recurrent trichoblastic carcinoma. A 93-year-old patient, who underwent an excision of a lesion of the left nasolabial fold two years previously with no record of histopathology, presented to our dermatology department with a lesion on the same site of excision evolving for the lasts six months. A clinical examination revealed a well-limited ulceration surrounded by a bluish, peripheric halo with an infiltrated base. Pigmented papules and telangiectasias were also observed along the scar of the nasolabial fold (Fig. 1). Dermoscopy showed blue, ovoid nests, brown and blue globules, telangiectasias, and a central ulceration (Fig. 2). A biopsy revealed a dermal tumor proliferation made from lobules and trabeculae of basaloid cells with nuclear atypia and numerous mitoses, which was more in favor of a trichoblastic carcinoma than a BCC. A radiological assessment revealed no regional or distant metastasis. The patient was referred to the plastic surgery department for further management.
Prurigo pigmentosa and diabetes: A case report
Authors: El Gaitibi Fatima Azzahra , Sialiti Sanae , Abdelmoutalib Asmae , Hamich Soumaya , Meziane Mariame , Benzekri Laila , Ismaili Nadia , Senouci Karima
Published: June 2022

Sir, Prurigo pigmentosa is a rare inflammatory disease first reported in 1971 by Nagashima et al. as a “peculiar pruriginous dermatosis with gross reticular pigmentation” in Japan [1], where the largest number of such cases have been described, with only several cases having been described elsewhere. Herein, we report a new case of prurigo pigmentosa. A 32-year-old Moroccan female presented at our dermatology department with a several-week-old history of pruritic eruptions on the chest, abdomen, lumbosacral area, and neck. According to the patient, the onset was marked by itchy papules coalescing to plaques, secondarily becoming hyperpigmented reticulated macules. The patient was treated with antifungal drugs without improvement. Additionally, the patient had recently been diagnosed with type II diabetes and was treated by oral antidiabetics. A physical examination revealed hyperpigmented macules arranged in a reticulate pattern, mainly on the chest, abdomen, lumbosacral area, and neck (Figs. 1 and 2). She had no acanthosis nigricans or other associated symptoms. The main diagnoses considered were pityriasis versicolor, confluent and reticulated papillomatosis of Gougerot–Carteaud, and prurigo pigmentosa. A histological examination revealed a discreetly atrophic epidermis surmounted by compact orthokeratotic hyperkeratosis and slight basal pigmentation. The dermis was the site of perivascular mononuclear infiltrates associated with a small number of melanophages. Periodic acid–Schiff staining was negative. This was consistent with the diagnosis of prurigo pigmentosa.
Vitiligo and quality of life: On fifty cases in Ouagadougou, Burkina Faso
Authors: Ouédraogo Nomtondo Amina , Ouédraogo Muriel Sidnoma , Tapsoba Gilbert Patrice , Traoré Fagnima , Tamalgo Patricia Félicité , Ilboudo Léopold , Kaboret Nadia , Zabsonré/ Tiendrébeogo Joelle , Bonkoungou Marcellin , Lallogo Salamata , Zeba Séraphine , Korsaga Nessiné Nina , Niamba Pascal , Traoré Adama , Barro Fatou
Published: June 2022

Background: Healthy skin with integrity is essential for maintaining one’s physical, mental, and social wellbeing. Vitiligo, a chronic autoimmune dermatosis characterized by asymptomatic, achromic macules, affects the integrity of the skin. Methodology: This was a descriptive, cross-sectional study conducted from March to June 2019 in six public hospitals in the city of Ouagadougou, Burkina Faso. The patients included in the study were followed in the dermatology departments of these structures for vitiligo, aged at least eighteen years and consenting. The Dermatology Life Quality Index (DLQI) and the vitiligo-specific health-related quality of life scale (VitiQoL) were employed to measure QoL (quality of life). Results: A total of fifty patients agreed to participate in the study. The mean age was 40.56 years, ranging from 18 to 79 years. There were as many females as males (25), and 23 married patients out of the fifty. The majority of the patients (43/50) resided in urban areas. Twenty-six patients had at least secondary education and eighteen patients worked in the informal sector. The average duration of vitiligo progression was 10.56 years, ranging from three months to 49 years. The evolution of vitiligo was stationary for 17/50 patients. The lesions were mainly located on the head and neck. The average body surface area (BSA) affected was 12.04%, ranging from 1% to 82%. The treatment was mainly local and general corticosteroid therapy. The evaluation of the patients’ quality of life (QoL) by the DLQI (Dermatology Life Quality Index) yielded a mean score of 5.44/30. Vitiligo had a small effect on the QoL of eighteen patients and a moderate effect on sixteen patients. VitiQoL assessment yielded a mean total score of 32.32/96 and stigma had the highest score of 18.04/36. The patients’ QoL was influenced by age and body surface area affected by vitiligo. Restriction of participation in activities and changes in the patient’s behavior were significantly correlated with the duration of vitiligo progression, followed by stigma, which was related to vitiligo progression. Conclusion: The alteration of the QoL of the patients with vitiligo was low to moderate. This alteration was related to the stigmatization by one’s environment.
Barriers to the Implementation of Inclusive Education: A Review of WoS Literature
Authors: García-Barrera Alba
Published: June 2022

One of the most complex tasks for teachers is overcoming the enormous challenge of teaching in inclusive classrooms. These classrooms include students who differ in multiple and varied dimensions, requiring the teacher to offer each one the resources and educational strategies required
to fully develop their individual potential. There are still many barriers that hinder this process. This article examines the scientific literature of the Web of Science (WoS) amd analyses the obstacles and impediments that persist when developing an inclusive education in the compulsory
stages of school. The aim is to understand the situation in which we find ourselves, and to look for new lines of that which can contribute to the advance towards a holistic and personalised educational model.
Preparation and mode conversion application of narrowband hollow-core anti-resonant fiber
Authors: Yang Jia-Hao , Zhang Ao-Yan , Xia Chang-Ming , Deng Zhi-Peng , Liu Jian-Tao , Huang Zhuo-Yuan , Kang Jia-Jian , Zeng Hao-Ran , Jiang Ren-Jie , Mo Zhi-Feng , Hou Zhi-Yun , Zhou Gui-Yao ,   School of Information Optoelectronics Technology, South China Normal University, Guangzhou 510006, China
Published: June 2022

Owing to the unique characteristics of the hollow core fiber(HCF), more and more researchers pay attention to its application. Because the mode field is mainly limited to the core region of the fiber, which results in low non-linearity, ultra-low group velocity dispersion, low temperature sensitivity, and high material damage threshold. Based on the above, the HCF possesses some attractive nonlinear applications such as in transmission of high-power laser beams, sensing, ultra-wide band low-loss transmission, pulse compression and super-continuum generation. Besides, the HCFs can be further divided into the transmitting band-gap photonic crystal fiber(PBG-PCF) and the hollow-core anti-resonant fiber(HC-ARF). Compared with the PBG-PCF, the latter has wide light guiding characteristics caused by leaking modes. According to the research in the recent year, the HC-ARF has gradually approached to the performance of the PBG-PCF in its transmission loss, showing that it has potential applications in communications, sensing, aerospace, high-power laser transmission and other fields in the future. In addition, the HC-ARF with the special light-guiding properties has also become the important photonic device in the fields of fiber filters, mode conversion, etc. In this paper, a hollow-core anti-resonance fiber is studied and its light transmission performance in the spectral range of 500–1500 nm is verified. The optical loss measured at 980 nm wavelength is about 0.32 dB/m. It is found that a 980 nm multi-mode laser beam can be converted into a single-mode one after transmitting through the hollow core fiber we designed.
Rule-ranking method based on item utility in adaptive rule model
Authors: Hikmawati Erna , Maulidevi Nur Ulfa , Surendro Kridanto
Published: June 2022

Background

Decision-making is an important part of most human activities regardless of their daily activities, profession, or political inclination. Some decisions are relatively simple specifically when the consequences are insignificant while others can be very complex and have significant effects. Real-life decision problems generally involve several conflicting points of view (criteria) needed to be considered and this is the reason recent decision-making processes are usually supported by data as indicated by different data mining techniques. Data mining is the process of extracting data to obtain useful information and a promising and widely applied method is association rule mining which has the ability to identify interesting relationships between sets of items in a dataset and predict the associative behavior for new data. However, the number of rules generated in association rules can be very large, thereby making the exploitation process difficult. This means it is necessary to prioritize the selection of more valuable and relevant rules.

Methods

Therefore, this study proposes a method to rank rules based on the lift ratio value calculated from the frequency and utility of the item. The three main functions in proposed method are mining of association rules from different databases (in terms of sources, characteristics, and attributes), automatic threshold value determination process, and prioritization of the rules produced.

Results

Experiments conducted on six datasets showed that the number of rules generated by the adaptive rule model is higher and sorted from the largest lift ratio value compared to the apriori algorithm.
High-resolution melting (HRM) curve analysis as a potential tool for the identification of earthworm species and haplotypes
Authors: Vaupel Anna , Hommel Bernd , Beule Lukas
Published: June 2022

Background

Earthworm communities are an important component of soil biodiversity and contribute to a number of ecosystem functions such as soil-nutrient cycling. Taxonomic identification is an essential requirement to assess earthworm biodiversity and functionality. Although morphological identification of species is labour-intensive, it is the most commonly used method due to a lack of cost-efficient alternatives. Molecular approaches to identify earthworms at species and haplotype level such as DNA barcoding are gaining popularity in science but are rarely applied in practice. In contrast to barcoding, the differentiation of PCR products based on their thermal denaturation properties using high-resolution melting (HRM) curve analysis is a fast and cost-efficient molecular closed-tube, post-PCR tool that allows identification of taxa.

Methods

We developed a HRM curve assay to identify eight earthworm species common to agricultural soils in Central Europe (Allolobophora chlorotica,Aporrectodea caliginosa,Apo. limicola,Apo. longa,Apo. rosea,Lumbricus castaneus,L. rubellus, andL. terrestris). For this, a new primer pair targeting a 158-bp long subregion of the cytochrome c oxidase I (COI) gene was designed. Our HRM assay was further tested for the differentiation of COI haplotypes using 28 individuals of the earthworm speciesAllo. chlorotica. Furthermore, we developed a novel extraction method for DNA from earthworm tissue that is fast and requires minimal consumables and laboratory equipment.

Results

The developed HRM curve assay allowed identifying all eight earthworm species. Performing the assay on 28 individuals of the earthworm speciesAllo. chloroticaenabled the distinction among different COI haplotypes. Furthermore, we successfully developed a rapid, robust, scalable, and inexpensive method for the extraction of earthworm DNA from fresh or frozen tissue.

Conclusions

HRM curve analysis of COI genes has the potential to identify earthworm species and haplotypes and could complement morphological identification, especially for juvenile or damaged individuals. Our rapid and inexpensive DNA extraction method from earthworm tissue helps to reduce the costs of molecular analyses and thereby promote their application in practice.
Competencia Narrativa: Evidencias de Validez para la Estandarización de su Evaluación en Niños Chilenos
Authors:   Universidad de los Andes, Chile, Orellana García Pelusa , Valenzuela Hasenohr María Francisca ,   Universidad de los Andes, Chile, Pezoa Sandoval José ,   Universidad de los Andes, Chile, Villalón Bravo Malva ,   Fundación Alma
Published: June 2022

La competencia narrativa ha sido definida como un puente entre el lenguaje oral y escrito, dado que se adquiere antes del aprendizaje formal de la lectura y ha demostrado ser un factor relevante para la comprensión lectora y el aprendizaje escolar. Este estudio examina la tarea de comprensión narrativa propuesta por Paris y Paris (2003) y adaptada en Chile por Silva et al., (2014), para detectar cambios en el desarrollo de esta habilidad en una muestra intencionada de 172 niños chilenos de Nivel Transición Menor (121) y Transición Mayor (51), 52% niñas, provenientes de sectores con un índice de vulnerabilidad promedio de 86%, 72% de ellos estudiantes de 9 escuelas particulares subvencionadas de la Región Metropolitana y 29% de 6 escuelas municipales de la Región del BioBío. Los resultados muestran validez estructural, de funcionamiento diferencial según sexo y una adecuada consistencia interna para el instrumento. A ello se agrega su sensibilidad evolutiva para distinguir resultados según edad o nivel educacional de los estudiantes. Contar con instrumentos de este tipo permite identificar los avances de los niños en este dominio y organizar el trabajo pedagógico para potenciar su aprendizaje en la educación inicial.
Fatal Recurrent Angioedema with Systemic Section Lupus Erythematosus in a Young Female: A Disturbing Decline
Authors: Talwar Dhruv , Kumar Sunil , Acharya Sourya , Annadatha Akhilesh , Pawar Twinkle
Published: June 2022

Recurrent angioedema is a particularly puzzling problem for clinicians worldwide. The cause is often idiopathic with chronic angioedema recurring over weeks to months. Intake of certain drugs and contact with other offending agents can also induce chronic angioedema. In systemic lupus erythematosus patients, recurrent angioedema may be due to an acquired deficiency of C1 inhibitor (C1-INH) caused most probably due to formation of antibody against C1-INH molecule. A 26-year-old female, who had systemic lupus erythematosus, presented to the Emergency Department with the chief complaint of puffiness of face, swelling of lips and bilateral lower limbs since one day, which occurred following application of aloe vera cream thrice within a duration of 24 hours. Upon investigations, absolute eosinophil count was raised while C4 and C1q levels were reduced. A diagnosis of acquired angioedema was made. Patient was managed with corticosteroids, cyclophosphamide, antibiotics, antihistaminics, oxygen support and other supportive measures. However, the patient’s condition declined further and she succumbed on day 5 of admission. Therefore, this report highlights the importance of chronic angioedema in a patient with systemic lupus erythematosus and the potential lethal outcome that it can result into.
An Unusual Site of Aneurysmal Bone Cyst in the Ethmoid Sinus- A Case Report
Authors: Sharma Dhaarna , Vohra Aditi , Narula Harneet , Arora Anshul
Published: June 2022

Aneurysmal bone cyst is a rare non neoplastic tumour of bones. It is a cystic vascular lesion causing local destruction and invasion of adjacent structures with rapid invasion. Therefore, it requires early intervention. It typically involves long bones of limbs, ribs of thoracic cage, pelvic bones and vertebrae in axial skeleton. Rarely it occurs in head and neck region where mandible is found to be most common site. It has been reported to arise from paranasal sinuses however, ethmoid sinus is a very rare site. The rarity of aneurysmal bone cyst in such location, involvement of adjacent structures and reoccurrences makes it more interesting for radiologist. Hereby, authors present an unusual site of aneurysmal bone cyst in 22-year-old female involving right ethmoid sinus with its typical computed tomography and magnetic resonance imaging features.
Diagnostic Accuracy of Chemiluminescence for Oral Potentially Malignant Disorders: A Systematic Review and Meta-analysis
Authors: Shaw Amar Kumar , Mahajan Madhura , Varshney Shivangi , Jena Marlyn , Rohatgi Lavanya , Bashir Sana , Tewari Sumit , Roy Jessica
Published: June 2022

Introduction: Biopsy is the gold standard for Oral Potentially Malignant Disorders (OPMD) diagnosis. Chemiluminescence provide promising complementary alternative diagnostic adjunct for its simple non invasive collection and technique and to screen large population. Aim: To summarise and compare the existing evidence on diagnostic accuracy of chemiluminescence in detecting oral potentially malignant disorders. Materials and Methods: The systematic review and metaanalysis protocol was registered at the international prospective register of systematic reviews (PROSPERO- CRD42022306061) and performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis-Diagnostic Test Accuracy (PRISMA- DTA) checklist. PubMed, Google Scholar, EBSCOhost were searched from 2000 to 2021 to identify the screening potential of chemiluminescence for oral potentially malignant disorders. True positive, false positive, true negative, false negative, sensitivity, specificity values were extracted or calculated if not present for each study. Quality of selected studies was evaluated based on Quality Assessment for Diagnostic Accuracy Studies -2 (QUADAS-2) tool. Meta-analysis was performed in Meta-Disc 1.4 software and Review Manager 5.3 using a bivariate model parameter for the sensitivity and specificity and summary points, Summary Receiver Operating Curve (SROC), confidence region, and prediction region were calculated. Results: Twenty-four studies were included for qualitative synthesis and out of that fourteen were included for metaanalysis. Sufficient data for meta-analysis was available only for leukoplakia, oral lichen planus and oral submucous fibrosis. Sensitivity and specificity were calculated with Area Under Curve (AUC). For leukoplakia, chemiluminescence had sensitivity and specificity of 75% and 98% with 0.74 Area Under curve. For Oral lichen planus it was 78% and 60% with 0.70 AUC. For oral submucous fibrosis it was 89% and 76% with 0.69 AUC. Conclusion: Chemiluminescence overall had good sensitivity and specificity values along with good AUC. This strongly supports the fact that it can be used an alternative diagnostic adjunct to biopsy for various oral potentially malignant disorders.
The Impact of Strategic Improvisation on the Nature of the Strategic Choice for the Tourism Organizations - An Exploratory Study in the Iraqi Tourism Board
Authors: Abdulkareem Akram
Published: June 2022

The research aims to analyze the nature of the strategic options approved by the Tourism Board, The effort exerted in the application and implementation of these options, and the research problem emerges through the dialectic of strategic improvisation as one of the mechanisms or methods that require the Board and the bodies responsible for performance in the sector to adopt to enable the working departments to deal with problems and crises, As well as forming mental perceptions about its work methods at the present and future level to keep pace with its work in light of the increasing environmental changes, in order to determine the optimal strategic option, The Iraqi Tourism Board represented the field container for researching variables in its applied form, as the research sample was represented by (106) respondents from the leaders of the Board with its various formations, departments and people, whose opinions were surveyed and subjected to statistical analysis. One of the most prominent conclusions of the research is that the strategic choice is at the heart of the strategic management process in the body that were question, and this is clear in the mechanisms and steps adopted in this context. It is the most difficult step in it and involves three sequential processes: the generation and evaluation of strategic alternatives and then selecting the appropriate alternative. And one of the most important recommendations is the necessity of increasing the managers interest in the issue of adequacy and alignment between the strategic options selected in the Board and the shape and style of the organizational structures prepared to serve them, because strategic success depends on creating interactive structures that are consistent with the nature of the option and moving away from traditional structures.
Voice Controlled Wheel Chair with Temperature Detection
Authors: Srilakshmanan N.
Published: June 2022

This task needs ongoing voice recognition via a mobile application. The system is used to control a drivers seat with the users voice. The goal of this project is to capture the development of people who are crippled or incapacitated, as well as elderly people who cant move well. The goal of this framework is to allow specific users to pursue living their lives with little reliance upon for their growth as needed. Speech innovation is an important innovation that will provide a better way for people to communicate with a machine or equipment. Therefore the problems they face can be addressed by introducing a new acknowledgment to improve the wheelchair. This can be understood and enhanced by using the enhanced mobile gadget as a central person or contact area. In this work it is planned to combine communication to force the hearing system that governs the development of the chair and the application that may or may not deal with the rules of graphical. This business uses arduino with a Microcontroller circuit and DC engines to perform the development of a wheelchair and Ultrasonic sensors to detect the barriers between the wheelchair and the bearing system.
Synthesis; Characterization and Photocatalytic Activity Studying of TiO2
Authors: Daabool Farah S. , Hussein Falah H.
Published: June 2022

Preparation of TiO2 nanoparticles (NPs) and X-ray diffraction (XRD).and scanning electron microscopy (SEM) analysis of the nanoparticles. The synthesis of TiO2 nanoparticles was carried out consuming the sol-gel and direct precipitation methods. The TiO2 nanoparticles were calcined for 2 hours at temperatures of 200°C. X-Ray diffraction.(XRD) and scanning electronic microscopy were used to explore the structural, morphological, and chemical aspects of produced TiO2 nanoparticles in the second half (SEM). The range of 90 nm, the average crystallite sizes and particle sizes of catalyst nanoparticles were estimated. In this example, however, the crystallite size as determined by particle size was 50 nm. The structural analysis of TiO2 nanoparticles using XRD patterns revealed that anatase is the predominant phase and mixed phases are present in all of them.
Legal Analysis and Importance of Release from Criminal Liability in Connection with Reconciliation
Authors: Nosirbek Qilichev
Published: June 2022

In this article, the legal basis for the release of crime from liability in connection with reconciliation, which is one of the grounds for the release of crime from liability, the legal analysis, the terms of application are discussed on the basis of the Criminal Code of the Republic of Uzbekistan, the Code of Criminal Procedure, the decisions of the Supreme Court.
Analytical thinking and its relationship to _12century skills among secondary school females students in mathematics
Authors: Abbas Dhifaf Akram , Rasan Dr.Hassan Kamel
Published: June 2022

The aim of the current research is to identify the nature of the correlation realtion between analytical thinking and twenty-first century skills among secondary school female students in the Salah al-Din Education Directorate / Dujail Education Department To achieve this, the following null hypotheses were formulated: 1. There are no statistically significant differences at significance level (0.05) between the mean of the actual performance and the hypothetical performance of the third-grade intermediate students in the analytical thinking test. 2. There are no statistically significant differences at significance level (0.05) between the mean of the actual performance and the hypothetical performance among the third intermediate grade femalestudents in the twenty-first century skills test and scale 3. There is no statistically significant correlation at the significance level (0.05) between analytical thinking and the twenty-first century skills among third-grade intermediate female students in mathematics. The research sample consisted of (295) female students of the third intermediate grade who were affiliated to middle and secondary schools in the General Directorate of Education of Salah al-Din / Department of Education of Dujail. For the research developed two to collect the data as follows : 1- Analytical thinking test: in its final form, where it consists of (20) test itemsfor 21_century skills test (the skill of learning and creativity): the test may consist of (14) items. 2- Scale of twenty-first skills (digital culture skill, media culture, profession and life skill): The scale consists of (30) items. The appropriate statistical analyzes were conducted using the spss statistical analysis program the results obtained indicated that There is a positive, good and direct correlation between analytical thinking and twenty-first century skills among third-grade intermediate female students in mathematics.
BUILDING A NEW SKILLING SYSTEM TO MATCH THE NEW JOBREQUIREMENTS
Authors: Rathi Dr. Renu
Published: June 2022

Economic growth is a reflection of jobs created and skills and knowledge are evident requirements for any job. Both developed and developing countries are focusing on skilling people and India is no different. Our aim is to become the future skill capital of the world and government is not leaving a single stone unturned. Being the youngest nation with more than 62% of its population in working age group of 15-59 years, and more than 54% of its total population below 25 years of age, it seems feasible. Recent skill initiatives such as National Skill Development Mission, Amendment in The Apprentices Act are examples of government’s action to move towards reality. Employment landscape is changing swiftly, and new jobs are emerging with rapid disruption in the business models around the globe. Today’s job market and in-demand skills are hugely different from the ones of 10 or even 5 years ago and the pace of change is only set to accelerate. New jobs require new skills which either does not exist or the population is niche. Building a skilling system to match the new requirements, a system that responds well to business needs, while opening opportunities for all people is the need of the hour. This paper summarizes the results of a research conducted in Indore, to find out the various skills gap found among present employees and the future employees of selected companies in Indore. The total of 320 managers was taken as sample and they were administered with a structured questionnaire. The summary of the skills gap is mentioned in the paper along with suggestions, training need analysis, and the employees can be trained to be fit for the job specifications.
Adaptability of Evacuation Equipment in Childcare and Elderly Care Facilitie
Authors: Han Chungbae , Kwak Daehoon , Ko Wangyoul
Published: June 2022

In the event of a fire, vulnerable individuals such as infants and the elderly are highly susceptible to injury and death. This is typically a result of inadequate cognitive capacity for a rapid response to fires and/or insufficient physical capabilities for evacuation. Child daycare centers and facilities for the elderly must install slides on the 2nd and 3rd floors that comply with KFI accreditation standards. In addition, the installed Life Chutes should not be of the vertical or inclined descending type. Ideally, facilities for the elderly should be situated on the ground floor (on the same level as the evacuation route) and should only be located on a higher floor when effective evacuation mechanisms such as slides or evacuation bridges are installed.
Flickering Signal Flame Detection Method Using a Matched Filter
Authors: Kim Younghan , Cho Hyangduck , Kim Younghyun
Published: June 2022

Flame combustion is a type of decomposition in which materials are combusted using oxygen in the air and a visible flame. During combustion, the respiratory process is detected as a flickering signal. Flame detectors recognize combustion by monitoring the generated infrared (IR) radiation. However, IR signals derived from artificial lighting and sunlight are also detected. Thus, a method for distinguishing nonflame-derived IR signals, such as artificial lighting, from flame-derived IR signals is required. In this study, a method for identifying a flickering signal using a matched filter that distinguishes between nonflame- and flame-derived IR signals was investigated. Matched filters selectively irradiate a frequency of the target signal by regulating the frequency of the waveform generator. When the frequencies of the inspection and flickering signal waveforms coincide, phase information may be obtained from the target waveform, and phase deviation may be minimized. Additionally, the magnitude of the detected IR signal, including the flickering signal, can be determined from the evaluation results of the waveform in the phase-locked state. Therefore, the flickering detection method using a matched waveform filter is effective for identifying IR signals and can be used as an economical fire detection method.
Analysis of the Vehicle Live Load Effects on Bridge Superstructure Considering South and North Korea Design Standards
Authors: Lim Kwangmo , Kim Kyoungchul , Kang Jaeyoon , Son Minsu , Koh Kyungtaek
Published: June 2022

Despite various social difficulties, the Korean peninsula has promoted cooperation for infrastructure development. These infrastructure cooperation projects must establish a fundamental technology with an understanding of both North and South Korea. Therefore, this study analyzed bridge design standards of both countries for establishing infrastructure technology. The design standards, such as the dead, live, and temperature loads, were comparatively investigated by securing the North Korean road design standards and the latest road status. Based on the investigation results of the bridge design standards, the U-type girder bridge with ultra-high-performance concrete was modeled for analytical comparisons. From the analysis results of the bridge superstructure, the latest vehicle load of North Korea standard showed a similar trend to the KL-510 load of South Korea. However, an additional detailed investigation has required a specific comparison, including the cross-section, materials, and so on. This research would be expected to be fundamental data for establishing cooperation for infrastructure development in the Korean peninsula.
Flash Drought Mechanism and Characteristics in South Korea
Authors: Lee Hee-Jin , Nam Won-Ho , Yoon Dong-Hyun , Svoboda Mark D. , Wardlow Brian D. , Otkin Jason A.
Published: June 2022

A flash drought is a drought that occurs rapidly within a short period of time, owing to changes in weather and environmental factors that occur rapidly due to extreme weather caused by climate change. Drought damage occurs within a relatively short period of time, and extreme vegetation stress can damage crops due to reduced water supply. Thus, different monitoring methods are required for different drought types. In this study, ESI (Evaporative Stress Index) and EDDI (Evaporative Demand Drought Index) were calculated to evaluate the short-term drought and determine the mechanism that causes flash droughts. The ESI and EDDI both indicates faster responses to the 2017 spring drought event than the SPI (Standardized Precipitation Index), confirming their sensitive drought assessment abilities. A flash drought detection standard was established based on the drought category used in USDM (United States Drought Monitor), and seven flash drought events were detected in South Korea over 5 years (2014-2018). A correlation analysis indicates that, among the hydrometeorological factors, the correlation coefficients between soil moisture/maximum temperature and flash drought occurrence exhibited strong positive (negative) correlations (0.9 and -0.9, respectively). The carbon change pattern obtained using GPP (Gross Primary Productivity) differed, exhibiting a -60% average GPP reduction rate compared to three other regions (JB, CN, and CB) where flash droughts occurred in 2018. We focus our discussion on opportunities to extend flash drought detection and mechanism determination using two drought indices that must be addressed to improve flash drought monitoring in South Korea.
Spatial Exploration of Areas Affected by Heatwaves Using Big Data: The Impact on Urban Residents’ Activities
Authors: Lee Sang-hyeok , Kang Jung Eun , Bae Hyun-joo
Published: June 2022

With the increase in frequency and intensity of heatwaves due to continued climate change and changes in urban spaces, research is needed to reduce their negative impacts. In Korea, several studies have been conducted on the subject since the unusual occurrence of extreme weather in 2018; however, as few have focused on the effects of heatwaves on the lives and activities of urban residents, this study investigates these effects and explores their spatial aspects. Using population big data, the changes in the active population on days when heatwaves occurred were statistically verified through a paired-samples test. Additionally, regional variations in changes were analyzed using GIS and spatial cluster analysis. Despite a slight temporal variation, the statistical analysis showed that the occurrence of heatwave is associated with decreased activity among urban residents. There was a difference in the active population between regions, and cluster analysis revealed that some hot spots saw increased activity in the population despite the occurrence of heatwaves, including Mapo-gu, Songpa-gu, and Gangnam-gu on weekdays and Gwanak-gu, Gangseo-gu, and Eunpyeong-gu on weekends. Conversely, the cold spots found included Seodaemun-gu, Gangbuk-gu, Seongbuk-gu, and Jongno-gu on weekdays and Jongno-gu, Jung-gu, Seocho-gu, and Gangnam-gu on weekends. These results can serve as basic data to prepare a heatwave response policy that reflects the characteristics of the region.
Effect of Shape on the Temperature of an Opening Jet Plume at the Bottom of a Horizontal Member
Authors: Kang Seunggoo
Published: June 2022

In this study, combustion tests, in which the opening condition of a fire source was changed using a large-scale compartment and horizontal member, were conducted. The inner temperature, temperature distribution under the horizontal member, external flame shape, and neutral zone height of the compartment were measured under various opening conditions. The results were analyzed using the temperature prediction equation for the opening jet plume at the bottom of a horizontal member, proposed by the Architectural Institute of Japan (Building fire load and design fire property guideline (draft)), and a review was deemed necessary.
Analysis of Energy Efficiency Characteristics of Domestic and Foreign EXIT Lights
Authors: Jung Jongjin
Published: June 2022

In this study, the energy efficiency of EXIT lights, a firefighting product, was analyzed from the perspective of general lighting equipment by examining domestic and foreign certification systems, such as KS, IEC, and the American ‘Energy Star Program’. Experiments were performed on EXIT lights from the United States, Japan, Austria, and domestic EXIT lights. The energy efficiency test factors derived from domestic and foreign standards include power, power factor, current total harmonic distortion, third harmonic current component, and fifth harmonic current component. The results of the test indicated that the US EXIT light consumed the least energy at 2.8 W, satisfying the US EXIT light Energy Star Program regulations, while other products consumed about 5-6 W. Additionally, the US product exhibited the lowest power factor of 0.1, while other products showed a value between 0.5 and 0.62; so there was no product that satisfied the KS (0.9 or more) and Energy Star Program (0.7 or more) standards. The total harmonic distortion (THD) of current in the US product was the lowest at 23.1%, while the Austrian product showed the highest THD at 132%. None of the products satisfied the KS standard of 20% or less. However, all products satisfied the KS standard of 86% or less and 61% or less for the 3rd and 5th harmonic components, respectively. Although the power consumption of the EXIT lights is as low as several watts, if the demand for high-power EXIT lights (several tens of watts) equals the level of lighting equipment in the future, it will be necessary to increase energy efficiency by employing power-factor-limiting regulations for EXIT lights.
Community resilience to crime: A study of the 2011 Brisbane flood
Authors: Wickes Rebecca , Zahnow Renee , Corcoran Jonathan , Kimpton Anthony
Published: June 2022

Understanding and enhancing community resilience is a global priority as societies encounter a rising number of extreme weather events. Given that these events are typically both sudden and unexpected, community resilience is typically examined after the disaster so there can be no before and after comparisons. As such, the extent to which existing community capacities buffer the effects of a traumatic event remains largely unexamined and untested in the literature. Drawing on a longitudinal study of 148 Brisbane suburbs, we examine the key community processes associated with community resilience to the crime before and after the 2011 Brisbane floods. We introduce a novel disaster severity index to simultaneously capture the direct and indirect impacts of the flood and embed this measure within our modeling framework. Results from the models provide important insights for predisaster preparedness and postdisaster rebuilding and recovery.
DNA Tile Self‐Assembly Guided by Base Excision Repair Enzymes
Authors: Farag Nada , Ercolani Gianfranco , Del Grosso Erica , Ricci Francesco
Published: June 2022

We demonstrate here the use of DNA repair enzymes to control the assembly of DNA‐based structures. To do so, we employed uracil‐DNA glycosylase (UDG) and formamidopyrimidine DNA glycosylase (Fpg), two enzymes involved in the base excision repair (BER) pathway. We designed two responsive nucleic acid modules containing mutated bases (deoxyuridine or 8‐oxo‐7,8‐dihydroguanine recognized by UDG and Fpg, respectively) that, upon the enzyme repair activity, release a nucleic acid strand that induces the self‐assembly of DNA tiles into tubular structures. The approach is programmable, specific and orthogonal and the two responsive modules can be used in the same solution without crosstalk. This allows to assemble structures formed by two different tiles in which the tile distribution can be accurately predicted as a function of the relative activity of each enzyme. Finally, we show that BER‐enzyme inhibitors can also be used to control DNA‐tile assembly in a specific and concentration‐dependent manner.
Monitoring the Dynamic Regulation of the Mitochondrial GTP‐to‐GDP Ratio with a Genetically Encoded Fluorescent Biosensor
Authors: Zhang Meiqi , Yang Bo , Zhang Jiayuan , Song Yuxin , Wang Weibo , Li Na , Wang Yuan , Li Wenzhe , Wang Jing
Published: June 2022

The interconversion of guanosine triphosphate (GTP) and guanosine diphosphate (GDP) is known to be integral to a wide variety of biological cellular activities, yet to date there are no analytical methods available to directly detect the ratio of intracellular GTP to GDP. Herein, we report GRISerHR, a genetically encoded fluorescent biosensor to monitor the GTP : GDP ratio in multiple cell types and in various organelles under metabolic perturbation. Additionally, we characterized the differential mitochondrial GTP : GDP ratios resulting from genetic modulation of two isoforms of a tricarboxylic acid (TCA) cycle enzyme (succinyl‐CoA synthetase; SCS‐ATP and SCS‐GTP) and of a phosphoenolpyruvate (PEP) cycle enzyme (PEPCK‐M). Thus, our GRISerHR sensor achieves spatiotemporally precise detection of dynamic changes in the endogenous GTP : GDP ratio in living cells and can help deepen our understanding about the energy metabolic contributions of guanosine nucleotides in biology.
Umpolung of an Aliphatic Ketone to a Magnesium Ketone‐1,2‐diide Complex with Vicinal Dianionic Charge
Authors: Burnett Stuart , Bourne Connor , Slawin Alexandra M. Z. , van Mourik Tanja , Stasch Andreas
Published: June 2022

The new β‐diketimine iPrDipnacnacH, HC(iPrCNDip)2H, Dip=2,6‐iPr2‐C6H3, was converted to the magnesium(I) complex [{(iPrDipnacnac)Mg}2] and reaction with 2‐adamantanone (OAd) afforded the ketone‐1,2‐diide complex [{(iPrDipnacnac)Mg}2(μ‐OAd)]. The complex contains the first stable dianion of an aliphatic ketone with an electropositive metal and shows an OAd2− unit with long C−O bond and pyramidal carbon centre. DFT studies reveal an anionic charge on both neighbouring C and O atoms. Reductions of aliphatic ketones with magnesium(I) complexes show that these likely proceed via highly reactive dianions and afforded a 1 : 1 mixture of an alkoxide and an enolate when an enolisable ketone was used, and rapid CH activations reactions, e.g., of stabilising ligand moieties, when non‐enolisable ketones were employed.
Efficient Production of L‐Homophenylalanine by Enzymatic‐Chemical Cascade Catalysis
Authors: Gao Dengke , Song Wei , Wu Jing , Guo Liang , Gao Cong , Liu Jia , Chen Xiulai , Liu Liming
Published: June 2022

L‐Homophenylalanine (L‐HPA) is a vital building block for the synthesis of numerous chiral drugs. However, the high cost of starting materials limits the industrial production of L‐HPA. In this study, an enzymatic‐spontaneous chemical cascade route for L‐HPA production was designed based on retrosynthetic analysis. This route, using simple benzaldehyde and pyruvate as starting materials, is extremely cost‐effective. The enzymes were screened and further assembled in E. coli, and TipheDH was identified as the rate‐limiting enzyme. Therefore, TipheDH was engineered to improve its specific activity (by 82 %) and expression level (by 254 %), thus generating the best strain (W14). W14 exhibited the optimum enzyme activity ratio (1.7 : 1.1 : 1 : 1.8) and demonstrated production of 100.9 g L−1 of L‐HPA (with 94 % conversion, >99 % ee) in a 5‐L reactor. This route effectively exploits the power of cascades and offers insight into avenues for synthesizing other valuable chemicals from inexpensive building blocks.