bluuebunny/crossref_metadata_2025 huggingface dataset:
In Silico Research in Glioma Vaccine Discovery from Isocitrate Dehydrogenase Type 1 (R132H) Epitopes
Authors: Yeni Yeni ,   Department of Pharmacy, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta, 13460, Indonesia
Published: July 2024

Glioma is a primary malignant brain tumor, which is often detected using the mutation of isocitrate dehydrogenase type 1 (IDH1) at the R132H position. Several studies have also reported the use of mutated IDH1 (R132H) specific immunogenic epitopes as vaccines against this tumor. Therefore, this study aimed to determine the high-affinity epitopes of IDH1 (R132H) as a plausible candidate of preventive and curative glioma vaccines and to predict the stability of epitope-receptor complex through molecular dynamics simulation. The binding affinity of epitopes for preventing and treating glioma were predicted by docking epitope to major histocompatibility complexes class II (MHC II) and ephrin type-A receptor 3 (EphA3), respectively, using Dock version 6.7. This study used the rigid body docking method, where the samples were treated in their compact state. The highest binding affinity for MHC II was exhibited by epitope 42, as indicated by a grid score of -62.73 kcal/mol. Meanwhile, epitope 54, with a grid score of -55.56 kcal/mol, had the highest binding affinity for the EphA3 receptor. The results showed that the protein conformation in the 42-MHC II epitope complex changed significantly in molecular dynamics simulations using GROMACS version 5.0.6 at 300 K for 25 ns with RMSD > 3 Å, while epitope 54-EphA3 complex was stable from the beginning up to 15.29 ns. Based on these findings, the best candidates for prophylactic and curative glioma vaccination were epitope 42 and 54, respectively.
On Farm Performance of Manual Pumps
Authors: Haque M. A. , Hussain M. D. , Zaman M. A.
Published: July 2024

This paper describes the on farm performances of three manually operated pumps widely used in Bangladesh namely, twin treadle pump, rower pump and No. 6 hand pump. Discharges from the treadle pump, rower pump and No. 6 hand pump at a head of 2.5 m were 0.66, 0.50 and 0.41 l/s respectively. Power input to the Rower pump and No. 6 Hand pump were 10% and 40% higher, respectively than that of the treadle pump at a head of 3.5 m. Treadle pump had the highest efficiency of 45% while the rower pump and the No. 6 hand pump had 38% and 25% efficiency, respectively. BCR values were 2.69, 1.83 and 1.17 respectively for the treadle pump, rower pump and No. 6 hand pump. The costs of lifting per m³ water were Tk. 6.46, Tk. 8.55 and Tk. 9.85 for the treadle, rower and No. 6 hand pump respectively. The overall performance of the twin treadle pump was better than rower and No. 6 hand pump up to a suction lift of 6 m. The No. 6 hand pump is not suitable for irrigation purpose because of its very low discharge and high power requirement.
Development and Evaluation of an Electric Lawn Mower
Authors: Mostafa Md. Golam , Ziauddin A.T.M. , Hafizuddin Md.
Published: July 2024

An electric operated lawn mower was developed and was evaluated in the Botanical garden of Bangladesh Agricultural University. The effective field capacity and the cutting efficiency of the mower using cutter with three blades were 0.02148 ha/hr and 99.4% respectively. While the effective field capacity of the mower using cutter with two blades and twisted steel wire were 0.01934 ha/hr and 0.0154 ha/hr, respectively. The cutting efficiency of the mower using cutter with two blades and twisted steel wire were 98.4% and 86.1%, respectively. The results indicated that the lawn mower using cutter with three blades could be used with high satisfaction.
Present Status of Coir Processing in Bangladesh
Authors: Hossain M. A. , Zaman M. A.
Published: July 2024

This article presents the findings of a study on coir processing in 10 selected districts of Bangladesh during the period of June-December, 1994. Information were collected by personal interviewing and physical observations. The coir processing techniques practiced by the farmers were crushing of husks before retting, retting for 2-35 days depending on the nature of crushing and the quality of coir, crushing after retting, separating the fibre from pitch and cork and drying them for a period of 2-3 days. All operations were done manually except in Faridpur where the crushing of husks was done by roller machine and found to be the most economic method. Coir processing is generally practiced by small and marginal farmers. It is a small capital-intensive and profitable business. If low cost crushing and fibre separating machines may be introduced, coir processing may become one of the attractive and profitable cottage industry in Bangladesh.
Study on the Performances of Different Wheat Threshers
Authors: Alam M. , Zaman M. A. , Hussain M. D.
Published: July 2024

The performances of four types of power threshers were tested for determining the grain output rate, threshing efficiency, losses, labor and power requirements of wheat threshing. The grain outputs varied from 43.17 kg/hr to 257.14 kg/hr. The threshing efficiencies were above 92.78% for all the machines. Seed damages ranged from 2.7 to 3.5% of total grain intake. The labor performance was maximum, 64.29 kg/man-hr, for Spiral thresher and minimum, 21.8 kg/hr, for Kyowa thresher. The costs of wheat threshing varied between 0.43 to 1.07 Tk/kg depending on threshers. Among the power threshers, threshing cost was minimum for Spiral thresher, the cost was the lowest, Tk 0.09 per kg, for pedal thresher. The power thresher may be used in big farms but the pedal thresher is better for small scale threshing.
Humor e discurso de ódio. Da aplicação da disciplina legal e constitucional dos limites à liberdade de expressão ao discurso humorístico.
Authors: Filgueiras Louise , Angelim Barboza Maria Cristina
Published: July 2024

O presente artigo pretende trazer elementos para a discussão sobre o direito à liberdade de expressão e seus limites, especialmente no que concerne o discurso humorístico. Através da análise dos os principais fundamentos da jurisprudência norte-americana, alemã e brasileira, trataremos a possibilidade de se aplicar limitações ao discurso humorístico em face da proibição do discurso de ódio, sustentando ao final as razões pelas quais, que em tese, segundo o ordenamento jurídico brasileiro, o discurso humorístico também deve respeitar as balizas legais e constitucionais.
The Compassion-Centered Model and Its Constructive Role in the Formation of a Healthy Society in the Light of
Authors: Mohib Mohammad Mansoor
Published: July 2024

Compassion is kindness rooted in appreciation of other human beings as real human beings. Research has been done on these important and constructive educational models of kindness and their constructive role in the formation of a healthy society in the light of the Prophet's way of life. Kindness is one of the important issues. In the field of community education, we can mention skills and characteristics that play a significant role in individual and social relationships based on kindness and attention to people's needs and problems and creating solidarity and responsibility of community members. Although the role of kindness as an educational model in the society has been neglected in the present era, the Quran and hadiths have mentioned it as a source of guidance and human education. This research investigates the concept of compassion and its educational effects from the perspective of the prophetic tradition with a descriptive-analytical method in order to investigate the characteristics and skills of compassion and its educational effects in the fields of belief, emotion, emotional and moral, in individual and social axes, and the culture of compassion to grow in society and focus on it. The results of the research show that compassion is one of the effective and useful personal and social traits that causes the mutual influence of people on each other in the direction of a better life and healing of the soul and spirit. And still, compassion is a set of qualities and skills and has a concept more than kindness and compassion. If after discussion and investigation it can be said that compassion is a person's relationship with God and man himself and It places society and people on the basis of monotheistic belief, love, responsibility, sympathy and empathy. According to this compassion, it has several basic educational roles, including seeing God as present and watching in all stages of life, and seeing Him as the agent of receiving mercy and guidance; And also controlling emotions and feelings and managing human interactions with others and protecting and relieving humans from the pains and pains of others and being kind to them and creating a platform for creating mutual love and good interaction in the community and these are reasons for being human and Muslim. We should keep this religious and human duty alive in our minds so that we can have a society free from unkindness.
Emotional Intelligence and Aggression among Young Adults: A Systematic Review
Authors: Javaid Zartashia Kynat , Saleem Asna , Razia Nayab , Ayesha
Published: July 2024

The aim of this study is to analyze the relation between emotional intelligence and aggression among adults, focusing on how these two factors influence each other and impact relationships, personal growth, and well-being. The interplay between emotional intelligence and aggression provides insights after comprehensive review of ten studies articles. This study seeks to develop effective strategies for young adults to manage their emotions, reduce aggression, and enhance conflict resolution skills. This review examined the research designs employed, the methods utilized to quantify the construct of emotional intelligence and aggression among young adults, and the key conclusions that can be made from these studies among young adults. Developing emotional intelligence and managing aggression in young adults is crucial for their overall well-being, social connections, and personal growth. Emotional intelligence helps young adults cultivate essential skills like effective communication, self-awareness, self-regulation, and empathy, enabling them to navigate relationships, conflicts, and challenges more successfully. By being emotionally intelligent, young adults can better understand and manage their own emotions, as well as respond appropriately to the emotions of others, leading to more harmonious relationships, improved mental health, and a more positive outlook on life. This review will help adults, their parents and policy makers to induce emotionally intelligent overlook and less aggressiveness.
LES TRAUMATISMES DU RACHIS CERVICAL INFERIEUR: A PROPOS DE 19 CAS OPERES PAR VOIE ANTERIEURE A L’HOPITAL PRINCIPAL DE DAKAR.
Authors: Diop, et al AA
Published: July 2024

Because of its mobility, the cervical spine is exposed to trauma, specially on its lowest part (C3 to C7). It is a retrospective study concerning 19 patients checked- in and operated by anterior approach at Hôpital Principal de Dakar between 1999 and 2001 after a clinical exam and quotation of Frankel before and after intervention and X-ray exam. The follow up had been made over a medium period of 10 months. Although, we report a population of 19 patients with cervical spine injury. Our study shows that the low part of cervical spine is involved on 42,2% of patients (19/45 cases), and 86,3% of cervical spine trauma (19/22 cases). Spine injuries were related on road traffic accidents on 79% (15/19 cases). The sex ratio was 15:4 and the mean age was 36,7 years old (the extremes were 19 years and 52 years). Neurological injury was noticed in 15 cases (78,9%). Lesion of the level C4-C5 was noticed on 10 cases (52,6%), and then following by C5-C6 (31,6%) and C6-C7 (15,8%). All the patients underwent surgery using cervical spine anterior approach, after medium delay of 11 days. The follow up shows a good recovery for 52% of the patients. 26% had permanent deficit and the death rate was 21%. The high mobility of the lower cervical spine, is a consequence of neurological disease after trauma. The prognosis depends on traumatic lesions, and rapidity of their management. Key words: lo
Les cancers colorectaux au Sénégal : analyse d’une série monocentrique de 46 cas
Authors: Diop, et al... Papa Saloum
Published: July 2024

Sub-saharian Africa has long been considered an area of low colorectal cancer risk. However, this pathology is increasingly encountered in hospital practice in Senegal. We wanted to take stock of colorectal cancerin a surgical environment. Patients and Methods: We report a descriptive study over a period of 5 years (January 2005 - December 2009), involving patients in care for colorectal cancer in the general surgery department of the General Hospital of Grand-Yoff. The parameters studied were the epidemiological profile, the elements of diagnosis, care and patient outcomes. Results: We collected 46 cases of colorectal cancer but a study period of 5 years, an average of 9.2 new cases per year. They were 30 men and 16 women with a mean age of 50.5 years. The average duration of clinical symptoms was 17 months. The clinical manifestations are dominated by revealing acute intestinal obstruction and chronic constipation. Tumors were colic in 71.7% of cases and rectal in 28.3% of cases. Histology showed a predominance of lieberkühnian adenocarcinoma (93.50%), mostly well differentiated. Patients in the series according to the classification (UICC 2002) were as follows: stage I (4.34%), stage II (39.13%), stage III (19.56%) and stage IV (36.95%). The overall operability rate was 84.8%. The overall resectability rate was 63%. The patients received chemotherapy in 43.47% of cases and by radiotherapy in 17.4% of cases. The overall operative morbidity was 17.9%. Operative overall mortality was 6.52%. Overall survival was 82.9% at one year, 61.4% at two years and 50.6% three years.Conclusion: Colorectal cancer is a reality in our practice of gastrointestinal oncology. The young age of our patients and the majority of advanced stages suggest particular attention to any recurrent rectal bleeding or constipation. Improving the prognosis will require the extension of haemocult even complete colonoscopy immediately before any chronic constipation. Key words: colorectal, cancer, adenocarcinoma
Le syndrome de l’anse afférente après une anastomose hépatico-jéjunale sur anse en Y de Roux à propos d’une observation
Authors: Konaté Ibrahima
Published: July 2024

Afferent loop syndrome is a mechanical obstruction of the afferent loop by adhesions, internal hernia, twisting of the handle,stricture of the anastomotic mouth or neoplastic recurrence. It is a rare complication that usually occurs after gastrectomy followed by Roux-en Y gastro-jejunal anastomosis. We report a rare case of this syndrom occurred after Roux-en Y hepatico-jejunal anastomosis. Keywords: afferent loop syndrom, hepatico-jejunal anastomosis, Roux-en Y loop
Volvulus perforé de l’intestin grêle compliquant un bouchon d’ascaris. A propos d’un cas
Authors: Nayi, et al... Zongo
Published: July 2024

Aim: To report a case of rare complication of intestinal ascaris cap and highlight the benefits of deworming. Case: We report a case of perforated small intestine volvulus on ascaris plug. It was a 10 year old child whose history, clinical and paraclinical examination led to the diagnosis of small bowel obstruction by Ascaris plug. Intraoperative diagnosis was a perforated small intestin volvulus on ascaris plug. Resection and ileostomy were performed. The outcome wasfavorable and the patient was discharged on day 28, after the restoration of digestive continuity. Conclusion: The systematic deworming of school-aged children in endemic areas helps to avoid gastrointestinals complications which may be life-threatening. Key words: Ascaris, small bowel volvulus, systematic deworming
L’adaptation Sociolinguistique DuLa Francophonie : Pratiques Culturelles Plurielles Et Didactiques Diverses De La Langue Française
Authors: THIAM Ousseynou
Published: July 2024

Depuis maintenant quelques décennies, on ne parle plus seulement de didactique du français mais de didactiques du français. Très subtile, plus en phase avec les faits didactiques du français, cette rupture épistémologique fondatrice a permis de mieux prendre en compte les phénomènes de transmission et d’acquisition des savoirs et des cultures des apprenants de la langue française. Opérée dans beaucoup de pays francophones, fondée sur les différents statuts particuliers du français dans les pays (Verdelhan-Bourgade, 2002, p. 19), cette option didactique vise à optimiser les compétences des enseignants et à apporter des réponses fondamentales aux besoins et aspirations linguistiques et culturelles des élèves. Le parti pris de cet article est d’aborder des questions à la fois linguistiques, institutionnelles et sociales mais relatives essentiellement aux didactiques. De fait, il s’agit de réfléchir sur la richesse culturelle en milieu scolaire selon une approche comparative. Cette démarche scientifique s’attache à mettre en évidence les événements qui caractérisent les situations didactiques de la langue française pour mieux saisir la didactique du français langue seconde. Au-delà du partage d’un espace linguistique, composé de territoires distincts et de valeurs distinctives qui accueillent différemment la langue française, la réalité francophone est aussi complexe que les recherches qui ont porté sur elle.
La Dramaturgie Francophone Balkanique Contemporaine, La Guerre En Ex-Yougoslavie Et Le Témoignage Documentaire : Le Cas De Mǎtéi VISNIEC Et De Sonia RISTIC
Authors: OIKONOMOPOULOU Christina
Published: July 2024

La présente étude s’intéresse à ce que peut nous révéler la dramatisation par des écrivains théâtraux francophones d’une période historique récente de la zone balkanique, la guerre civile en ex-Yougoslavie. Pour illustrer nos propos, nous avons sélectionné deux dramaturges d’expression française, et dont l’origine nationale est ancrée dans l’espace géographique de l’Europe de l’Est : Mătéi Visniec, d’origine roumaine, et Sonia Ristić, d’origine serbo-croate. Leurs pièces théâtrales Du sexe de la femme comme champ de bataille dans la guerre en Bosnie1 et Sniper Avenue2 nous serviront d’exemple, afin d’élucider des aspects thématiques et esthétiques de la théâtralisation documentaire de cette réalité du passé géopolitique de l’Europe de l’Est. Au préalable, il faut noter que, bien que les deux dramaturges partagent, à part une certaine proximité due à leurs liens avec l’espace balkanique, le choix graphique de la langue française, leur rapprochement à l’égard de la théâtralisation de la guerre en ex-Yougoslavie ne doit concerner que la thématique choisie, ce qui exclurait d’avance tout paramètre d’intertextualité et d’interaction personnelle, auctoriale ou artistique. Avant de se pencher sur notre sujet, il serait utile de présenter brièvement l’identité de la francophonie balkanique, d’autant plus que nos deux dramaturges et leurs pièces analysées ici sont étroitement liés à ce continuum aux particularités géopolitiques, historiques, culturelles, religieuses et linguistiques.
LA FRANCOPHONIE AU NIGER
Authors: NIANG Ibrahim Abdou Salam ,   Université Abdou Moumouni de Niamey, Niger
Published: July 2024

Aborder la problématique de la francophonie au Niger est pour le moins difficile. En effet, la conquête coloniale du territoire du Niger remonte à une période relativement récente en comparaison avec les autres pays francophones de la sous région ouest-africaine. Le Niger ne devient colonie française qu’en 1922 tandis que pour des pays comme le Sénégal, les premiers contacts avec les Français et leur culture remonte au règne de Louis XIV, au XVIIe siècle. Dernier pays sur la liste des colonies françaises, on comprend aisément que le contact culturel entre le Niger et la culture française, notamment à travers la langue française, soit des plus récents donc des moins profonds pourrait-on dire. Paradoxalement, pour avoir été le cadre de la création en 1970 de l’Agence de Coopération Culturelle et Technique (ACCT) des pays francophones devenue aujourd’hui l’Agence de la Francophonie, le Niger est considéré comme le berceau de la Francophonie. Quelle est la situation de la francophonie au Niger ? Qu’est ce que ce statut apporte au Niger ? Avant d’entrer dans le vif du sujet, il faut sans doute définir le concept de francophonie. Le terme est employé pour la première fois en 1880 par le géographe Onésime Reclus et signifiait « un espace géographique au sein duquel la langue française s’implante et évolue progressivement au rythme des mélanges culturels, des métissages d’un monde colonial en pleine expansion »1. C’est en 1962 que Maurice Druon lui donne sa définition actuelle : « L’ensemble de ceux qui ont le français en partage »2. Il ne faut cependant pas confondre francophonie avec francité, terme inventé par Léopold Sédar Senghor et qui signifie « l’ensemble des caractères propres à la civilisation française »3. Par ailleurs, il convient également de prendre en compte le fait que la francophone va bien vite évoluer de l’instrument culturel de solidarité vers l’instrument politique d’affirmation de la communauté francophone dans le monde à partir de 1997 à la Conférence de Hanoï. Bien que la francophonie soit une institution internationale, l’on ne peut expliquer la façon dont l’opinion nigérienne la perçoit, sans évoquer les relations bilatérales entre la France et le Niger.
Francophonie Et Mondialisation : Enjeux Et Perspectives
Authors: TSALA MBANI André Liboire
Published: July 2024

La francophonie est un lieu de mémoire, pour paraphraser le titre d’un ouvrage monumental de Jean Tabi Manga1, c’est-à-dire un réceptacle de souvenirs, de représentations, des imaginaires et de valeurs qui sédimentent et cristallisent des identités multiples et diverses sous la bannière de la langue française. Historiquement, le terme « francophonie » voit le jour sous la plume du géographe français Onesime Reclus (1837-1916) en 1880 dans l’optique de désigner l’ensemble des populations, à l’échelle du globe, usant de la langue française. Le terme « francophonie » est donc un concept essentiellement linguistique2. Peu à peu, malheureusement, le concept va sombrer dans l’oubli. Comme s’il ne charriait aucune valeur ajoutée en termes de résonance et d’intérêt culturel et politique. Il a fallu s’armer de patience et attendre la période des indépendances politiques africaines pour voir émerger à nouveau le substantif « francophonie » sous la plume de Léopold Sédar Senghor3, à la faveur d’un article de notoriété universelle paru dans la revue Esprit en 1962. Dans cette publication scientifique, en effet, l’homme de culture sénégalais en appelle à la définition d’une communauté politiquement organisée de peuples ayant en commun l’usage du français et partageant les valeurs humanistes. Cette approche senghorienne résonne comme le signe avant coureur du concept structurant de « communauté organique » qu’il proposa autour des années soixante-dix et qui, lui-même, préfigurait la Francophonie politique. Ce concept structurant hanta à coup sûr les travaux qui ont vu naître à Niamey au Niger l’Agence de Coopération Culturelle et Technique, première institution intergouvernementale de la Francophonie, en mars 1970. Les travaux de Niamey constituent la première étape de la Francophonie des États, tandis que le Sommet de Versailles en 1986, sous la présidence de François Mitterrand, en est la seconde étape.
Applying the balanced scorecard model in evaluating business performance in Vietnam: A case study in manufacturing
Authors: Dang Le Thanh ,   People’s Police University of Technology and Logistics, Vietnam, Nguyen Toai Van ,   Ho Chi Minh City University of Industry and Trade, Vietnam
Published: July 2024

This study explores the application of the Balanced Scorecard (BSC) model in evaluating the performance of businesses in Vietnam, focusing on a production case study. The BSC model, which encompasses four perspectives—financial, customer, internal business processes, and learning and growth—is widely used to assess and improve organizational performance. By employing a mixed-methods approach, including interviews, surveys, and secondary data analysis, this research examines the implementation of the BSC model in a Vietnamese production company. The study reveals the strengths and weaknesses of the company’s performance across the four BSC perspectives and identifies the challenges in applying the model within the Vietnamese context. The findings suggest that the BSC model can be effectively adapted to evaluate and enhance the performance of Vietnamese businesses. The study also provides recommendations for strategies to improve performance based on the BSC analysis and highlights the need for further research on the application of the BSC model in various industries in Vietnam. This research contributes to the growing body of literature on performance evaluation in Vietnamese businesses and offers practical insights for managers seeking to implement the BSC model in their organizations.
The impact of entrepreneurship on organizational excellence: The mediating role of visionary leadership
Authors: Nguyen Binh Thanh Ha ,   Van Hien University, Vietnam, Duong Loan Thi ,   Van Hien University, Vietnam
Published: July 2024

Entrepreneurship is important to enhance an organization’s position against competitors and can create new opportunities for the organization. The study examines the impact of entrepreneurship on organizational excellence through visionary leadership. The results showed that there is a positive impact of entrepreneurship on both organizational excellence and visionary leadership. Besides, the study also proved that visionary leadership have positive impact on organizational excellence. Moreover, the study also discovered the mediating role of visionary leadership in the relationship between entrepreneurship and organizational excellence.
Impact of job search strategy on reemployment outcomes of unemployed youth in Binh Duong province
Authors: Phan Luc Tan ,   Thu Dau Mot University, Vietnam, Ha Oanh Lam ,   Thu Dau Mot University, Vietnam
Published: July 2024

This study explores the impact of exploratory, haphazard, and focused strategies on three aspects of re-employment outcomes, including income satisfaction, compatibility between abilities, and organizational commitment. Data were collected from 384 young people who were unemployed and found work in the past three months in Binh Duong. The results of hypothesis testing show that the exploratory strategy has a positive impact on organizational commitment and a negative effect on the level of income satisfaction. A focused strategy positively impacts all three aspects of re-employment outcomes. The haphazard strategy only hurt organizational commitment. The results suggest implications for policymakers and unemployed individuals in building intelligent job search strategies that are ready to adapt to changes in the labor market.
EROSÃO EÓLICA EM MEIO TROPICAL
Authors: Lemes Bezerra Leonardo Henrique , Nadal Junqueira Villela Fernando , Aparecida Correia Furquim Sheila
Published: July 2024

O objetivo do trabalho foi descrever, analisar e caracterizar a causa do fenômeno da nuvem de poeira ocorrido na sede urbana do município de Franca, interior do Estado de São Paulo em 26/09/2021. Para caracterização do trabalho foram selecionadas estações meteorológicas automáticas dentro um raio de 100 Km do centroide do município de Franca. Os dados das variáveis climáticas foram coletados, tratados e espacializados através de técnicas de interpolação. As variáveis selecionadas foram: temperatura, pressão atmosférica, umidade do ar, pluviometria, velocidade e direção do vento. Os resultados foram quantificados e analisados em sobreposição com os mapeamentos das características ambientais da área em estudo (geologia, geomorfologia, climatologia, pedologia e uso do solo). Os resultados permitiram entender que a região de Franca possui uma configuração ambiental que somada ao uso do solo e às especificidades climáticas ocorridas na data do evento, geraram uma zona turbulenta que podem explicar a ocorrência da nuvem de poeira.
Data Privacy Assurance in Management Information System through Cyber Security Measures
Authors: Abdulrahman Omar T.
Published: July 2024

In the digital age, safeguarding data within Management Information Systems (MIS) is critical. This study investigates the influence of cyber security measures on data privacy assurance in MIS. Drawing from the Information System Theory, the research examines encryption techniques, firewalls, and intrusion detection systems. The literature underscores the importance of robust cyber security measures. Encryption techniques, firewalls, and intrusion detection systems play pivotal roles in data privacy assurance. Hypotheses are formulated based on theoretical underpinnings and prior research. Methodologically, a stratified random sampling technique gathers data from diverse organizations, resulting in 67 responses. SMART PLS 4 analyzes data considering the exploratory nature of the study. Results reveal the significant impact of encryption techniques and intrusion detection systems on data privacy assurance. Encryption techniques exhibit a positive relationship, while firewalls contribute modestly. A counterintuitive negative relationship between intrusion detection systems and data privacy assurance prompts further investigation. These findings emphasize the multifaceted nature of data privacy assurance in MIS. Organizations are encouraged to leverage encryption techniques and enhance firewall strategies. The unexpected negative impact of intrusion detection systems highlights the complex dynamics of security. This study contributes to discussions on data privacy and security in organizational contexts. Future research should explore underlying mechanisms behind counterintuitive relationships and the intersection of technology and security in MIS
The Relationship of the Enterprise Resource Planning (ERP) System to Value Engineering and their Role in Reducing Costs
Authors: Jasim Raghad Hashim
Published: July 2024

The research aims to clarify the relationship between the enterprise resource planning system and value engineering, and to clarify their impact on reducing costs. Providing enterprise resource planning eliminates its suffering from its dependence on outdated information systems that are not compatible with rapid changes and established standards. It also supports the presence of an effective procedural structure for performing work that removes obstacles and bottlenecks, invests in means of transferring and flowing information, and excludes jobs that do not bring additional benefit to the work in the series of procedures through which the product or service is produced until it finally reaches the customer in the fastest time and with the least amount. Cost while achieving a high level of quality.
COVID-19 Food Pyramid: A Novel Approach
Authors: Lalitha N Divya , Priya Harsh , Purohit Bharathi M , Mishra Deepika , Duggal Ritu
Published: July 2024

COVID-19 is an infectious disease that is caused by SARS-CoV-2 which affects the respiratory framework of the body and continues to devastate the world's health as well as economy. This disease is said to adversely affect the nutritional status of the people. Healthy eating habits as well as lifestyle changes are essential to protect us from this virus. Now, there is a gradual increase in researches and nutritional recommendations on immunity boosting diets for COVID-19. However, there is still no such food pyramid has been specifically designed for COVID-19 period. Therefore, this study aimed to develop a COVID-19 specific food pyramid to illustrate the foods to be consumed on daily basis by a person to maintain health during this pandemic. Such visual representation of the nutritional guideline will help common people also to easily understand and adapt it to their day to day healthy eating behavior.
Rare Case of Annular Pancreas
Authors: D Poojitha , Akther Jameel , S Sudarsan
Published: July 2024

One of the rare disorders noted during birth is Annular pancreas. In this disorder a slender band of pancreatic tissue engulfs the duodenum. This congenital anomaly in children produces symptoms like duodenal obstruction but mostly they produce symptoms in later stages of life. This is one of the rare clinical diagnosis. But once diagnosed immediate treatment can reduce the morbidity risk.
Examining the Mediating Role of Students’ Perception of Mathematics in the Relationship between Teacher Positioning and Mathematics Identity Among Senior High School Students
Authors: Canonigo Allan , Joaquin Ma. Nympha
Published: July 2024

Mathematics learning involves not only acquiring mathematical concepts and skills but also developing an identity as a member of the mathematics classroom community. This study examined the relationship between teacher positioning and student mathematics identity and the mediating effect of students’ perceptions of mathematics. A survey was conducted among 508 senior high school students, and the research instrument was pilot-tested and validated on 340 students and 238 teachers. Structural equation modeling and mediation analysis were used to analyze the data. The findings revealed that teacher positioning had a direct impact on students’ mathematics identity even when students’ perception of mathematics was considered a mediator variable. Mediation analysis showed that students’ perception of mathematics partially mediated the relationship between teacher positioning and students’ mathematics identity, confirming that teacher positioning and students’ perceptions of mathematics are crucial components in the construction of students’ mathematics identity. This research demonstrates the role of teacher positioning and students’ perceptions of mathematics and highlights factors that contribute to the development of mathematics identity and their interactions with teacher positioning and students’ mathematics perception. Further research should investigate other factors that contribute to mathematics identity and their impact on student learning outcomes. Keywords: experience, identity construction, math teaching, position and role
Efficient Post-Quantum Pattern Matching on Encrypted Data
Authors: Bkakria Anis , Izabachène Malika
Published: July 2024

Pattern matching methods are essential in various applications where users must disclose highly sensitive information. Among these applications are genomic data analysis, financial records inspection, and intrusion detection processes, all of which necessitate robust privacy protection mechanisms. Balancing the imperative of protecting the confidentiality of analyzed data with the need for efficient pattern matching presents a significant challenge.

In this paper, we propose an efficient post-quantum secure construction that enables arbitrary pattern matching over encrypted data while ensuring the confidentiality of the data to be analyzed. In addition, we address scenarios where a malicious data sender, intended to send an encrypted content for pattern detection analysis, has the ability to modify the encrypted content. We adapt the data fragmentation technique to handle such a malicious sender. Our construction makes use of a well-suited Homomorphic Encryption packing method in the context of fragmented streams and combines homomorphic operations in a leveled mode (i.e. without bootstrapping) to obtain a very efficient pattern matching detection process.

In contrast to the most efficient state-of-the-art scheme, our construction achieves a significant reduction in the time required for encryption, decryption, and pattern matching on encrypted data. Specifically, our approach decreases the time by factors of

1850

,

10
6

, and

245

, respectively, for matching a single pattern, and by factors of

115

,

10
5

, and

12

, respectively, for matching

2

10

patterns.
An Explicit High-Moment Forking Lemma and its Applications to the Concrete Security of Multi-Signatures
Authors: Segev Gil , Shapira Liat
Published: July 2024

In this work we first present an explicit forking lemma that distills the information-theoretic essence of the high-moment technique introduced by Rotem and Segev (CRYPTO '21), who analyzed the security of identification protocols and Fiat-Shamir signature schemes. Whereas the technique of Rotem and Segev was particularly geared towards two specific cryptographic primitives, we present a stand-alone probabilistic lower bound, which does not involve any underlying primitive or idealized model. The key difference between our lemma and previous ones is that instead of focusing on the tradeoff between the worst-case or expected running time of the resulting forking algorithm and its success probability, we focus on the tradeoff between higher moments of its running time and its success probability.

Equipped with our lemma, we then establish concrete security bounds for the BN and BLS multi-signature schemes that are significantly tighter than the concrete security bounds established by Bellare and Neven (CCS '06) and Boneh, Drijvers and Neven (ASIACRYPT '18), respectively. Our analysis does not limit adversaries to any idealized algebraic model, such as the algebraic group model in which all algorithms are assumed to provide an algebraic justification for each group element they produce. Our bounds are derived in the random-oracle model based on the standard-model second-moment hardness of the discrete logarithm problem (for the BN scheme) and the computational co-Diffie-Hellman problem (for the BLS scheme). Such second-moment assumptions, asking that the success probability of any algorithm in solving the underlying computational problems is dominated by the second moment of the algorithm's running time, are particularly plausible in any group where no better-than-generic algorithms are currently known.
Provably Secure and Area-Efficient Modular Addition over Boolean Shares
Authors: Assael Guilhèm , Elbaz-Vincent Philippe
Published: July 2024

Several cryptographic schemes, including lattice-based cryptography and the SHA-2 family of hash functions, involve both integer arithmetic and Boolean logic. Each of these classes of operations, considered separately, can be efficiently implemented under the masking countermeasure when resistance against vertical attacks is required. However, protecting interleaved arithmetic and logic operations is much more expensive, requiring either additional masking conversions to switch between masking schemes, or implementing arithmetic functions as nonlinear operations over a Boolean masking. Both solutions can be achieved by providing masked arithmetic addition over Boolean shares, which is an operation with relatively long latency and usually high area utilization in hardware. A further complication arises when the arithmetic performed by the scheme is over a prime modulus, which is common in lattice-based cryptography. In this work, we propose a first-order masked implementation of arithmetic addition over Boolean shares occupying a very small area, while still having reasonable latency. Our proposal is specifically tuned for efficient addition and subtraction modulo an arbitrary integer, but it can also be configured at runtime for power-of-two arithmetic. To the best of our knowledge, we propose the first such construction whose security is formally proven in the glitch+transition-robust probing model.
Randomness Generation for Secure Hardware Masking – Unrolled Trivium to the Rescue
Authors: Cassiers Gaëtan , Masure Loïc , Momin Charles , Moos Thorben , Moradi Amir , Standaert François-Xavier
Published: July 2024

Masking is a prominent strategy to protect cryptographic implementations against side-channel analysis. Its popularity arises from the exponential security gains that can be achieved for (approximately) quadratic resource utilization. Many variants of the countermeasure tailored for different optimization goals have been proposed. The common denominator among all of them is the implicit demand for robust and high entropy randomness. Simply assuming that uniformly distributed random bits are available, without taking the cost of their generation into account, leads to a poor understanding of the efficiency vs. security tradeoff of masked implementations. This is especially relevant in case of hardware masking schemes which are known to consume large amounts of random bits per cycle due to parallelism. Currently, there seems to be no consensus on how to most efficiently derive many pseudo-random bits per clock cycle from an initial seed and with properties suitable for masked hardware implementations. In this work, we evaluate a number of building blocks for this purpose and find that hardware-oriented stream ciphers like Trivium and its reduced-security variant Bivium B outperform most competitors when implemented in an unrolled fashion. Unrolled implementations of these primitives enable the flexible generation of many bits per cycle, which is crucial for satisfying the large randomness demands of state-of-the-art masking schemes. According to our analysis, only Linear Feedback Shift Registers (LFSRs), when also unrolled, are capable of producing long non-repetitive sequences of random-looking bits at a higher rate per cycle for the same or lower cost as Trivium and Bivium B. Yet, these instances do not provide black-box security as they generate only linear outputs. We experimentally demonstrate that using multiple output bits from an LFSR in the same masked implementation can violate probing security and even lead to harmful randomness cancellations. Circumventing these problems, and enabling an independent analysis of randomness generation and masking, requires the use of cryptographically stronger primitives like stream ciphers. As a result of our studies, we provide an evidence-based estimate for the cost of securely generating

n

fresh random bits per cycle. Depending on the desired level of black-box security and operating frequency, this cost can be as low as

20
n

to

30
n

ASIC gate equivalents (GE) or

3
n

to

4
n

FPGA look-up tables (LUTs), where

n

is the number of random bits required. Our results demonstrate that the cost per bit is (sometimes significantly) lower than estimated in previous works, incentivizing parallelism whenever exploitable. This provides further motivation to potentially move low randomness usage from a primary to a secondary design goal in hardware masking research.
FEDT: Forkcipher-based Leakage-resilient Beyond-birthday-secure AE
Authors: Datta Nilanjan , Dutta Avijit , List Eik , Mandal Sougata
Published: July 2024

There has been a notable surge of research on leakage-resilient authenticated encryption (AE) schemes, in the bounded as well as the unbounded leakage model. The latter has garnered significant attention due to its detailed and practical orientation. Designers have commonly utilized (tweakable) block ciphers, exemplified by the TEDT scheme, achieving

𝒪
(
n
−
log
(

n
2

)
)

-bit integrity under leakage and comparable AE security in the black-box setting. However, the privacy of TEDT was limited by

n
/
2

-bits under leakage; TEDT2 sought to overcome these limitations by achieving improved security with

𝒪
(
n
−
log
n
)

-bit integrity and privacy under leakage.

This work introduces FEDT, an efficient leakage-resilient authenticated encryption (AE) scheme based on fork-cipher. Compared to the state-of-the-art schemes TEDT and TEDT2, which process messages with a rate of

1
/
2

block per primitive call for encryption and one for authentication, FEDT doubles their rates at the price of a different primitive. FEDT employs a more parallelizable tree-based encryption compared to its predecessors while maintaining

𝒪
(
n
−
log
n
)

-bit security for both privacy and integrity under leakage. FEDT prioritizes high throughput at the cost of increased latency. For settings where latency is important, we propose FEDT*, which combines the authentication part of FEDT with a CTR-based encryption. FEDT* offers security equivalent to FEDT while increasing the encryption rate of

4
/
3

and reducing the latency.
Decentralized Multi-Client Functional Encryption with Strong Security
Authors: Nguyen Ky , Pointcheval David , Schädlich Robert
Published: July 2024

Decentralized Multi-Client Functional Encryption (DMCFE) extends the basic functional encryption to multiple clients that do not trust each other. They can independently encrypt the multiple plaintext-inputs to be given for evaluation to the function embedded in the functional decryption key, defined by multiple parameter-inputs. And they keep control on these functions as they all have to contribute to the generation of the functional decryption keys. Tags can be used in the ciphertexts and the keys to specify which inputs can be combined together. As any encryption scheme, DMCFE provides privacy of the plaintexts. But the functions associated to the functional decryption keys might be sensitive too (e.g. a model in machine learning). The function-hiding property has thus been introduced to additionally protect the function evaluated during the decryption process.

In this paper, we provide new proof techniques to analyze a new concrete construction of function-hiding DMCFE for inner products, with strong security guarantees: the adversary can adaptively query multiple challenge ciphertexts and multiple challenge keys, with unbounded repetitions of the same tags in the ciphertext-queries and a fixed polynomially-large number of repetitions of the same tags in the key-queries. Previous constructions were proven secure in the selective setting only.
Synchronous Distributed Key Generation without Broadcasts
Authors: Shrestha Nibesh , Bhat Adithya , Kate Aniket , Nayak Kartik
Published: July 2024

Distributed key generation (DKG) is a key building block in developing many efficient threshold cryptosystems. This work initiates the study of communication complexity and round complexity of DKG protocols over a point-to-point (bounded) synchronous network. Our key result is the first synchronous DKG protocol for discrete log-based cryptosystems with

O
(
κ

n
3

)

communication complexity (

κ

denotes a security parameter) that tolerates any

t
<
n
/
2

Byzantine faults among

n

parties. We present two variants of the protocol: (i) a protocol with worst-case

O
(
κ

n
3

)

communication and

O
(
t
)

rounds, and (ii) a protocol with expected

O
(
κ

n
3

)

communication and expected constant rounds. In the process of achieving our results, we design (1) a novel weak gradecast protocol with a communication complexity of

O
(
κ

n
2

)

for linear-sized inputs and constant rounds, (2) a protocol called “recoverable-set-of-shares” for ensuring recovery of shared secrets, (3) an oblivious leader election protocol with

O
(
κ

n
3

)

communication and constant rounds, and (4) a multi-valued validated Byzantine agreement (MVBA) protocol with

O
(
κ

n
3

)

communication complexity for linear-sized inputs and expected constant rounds. Each of these primitives is of independent interest.
Imaginarios emergentes del fútbol femenino
Authors: Díaz-Bajo Rodríguez Javier , Martínez Borda Rut , Infante Pineda Sara
Published: July 2024

Los imaginarios sociales son concebidos como esquemas que permiten percibir algo como real, explicarlo e intervenir operativamente en lo que las sociedades contemporáneas consideran como realidad. Este trabajo busca inferir las representaciones sociales que emanan de las estrategias publicitarias que fueron producidas y difundidas por la UEFA (Union of European Football Associations), así como por sus patrocinadores oficiales, en la promoción del campeonato de fútbol femenino: UEFA Women´s Euro 2022. Los resultados evidencian la función social que adquieren las marcas a la hora representar, legitimar y promulgar una visión transnacional y globalizada de la mujer en el fútbol y en la sociedad.