bluuebunny/crossref_metadata_2025 huggingface dataset:
Towards the controlled enzymatic synthesis of LNA containing oligonucleotides
Authors: Sabat Nazarii , Katkevica Dace , Pajuste Karlis , Flamme Marie , Stämpfli Andreas , Katkevics Martins , Hanlon Steven , Bisagni Serena , Püntener Kurt , Sladojevich Filippo , Hollenstein Marcel
Published: March 2023

Enzymatic, de novo XNA synthesis represents an alternative method for the production of long oligonucleotides containing chemical modifications at distinct locations. While such an approach is currently developed for DNA, controlled enzymatic synthesis of XNA remains at a relative state of infancy. In order to protect the masking groups of 3’-O-modified LNA and DNA nucleotides against removal caused by phosphatase and esterase activities of polymerases, we report the synthesis and biochemical characterization of nucleotides equipped with ether and robust ester moieties. While the resulting ester-modified nucleotides appear to be poor substrates for polymerases, ether-blocked LNA and DNA nucleotides are readily incorporated into DNA. However, removal of the protecting groups and modest incorporation yields represent obstacles for LNA synthesis via this route. On the other hand, we have also shown that the template-independent RNA polymerase PUP represents a valid alternative to the TdT and we have also explored the possibility of using engineered DNA polymerases to increase substrate tolerance for such heavily modified nucleotide analogs.
Tandem InCl3-promoted hydroperoxide rearrangements and nucleophilic additions, a straightforward entry to benzoxacycles
Authors: Bosnidou Alexandra , Fayet Agathe , Cheibas Cristina , Gayraud Oscar , Bourcier Sophie , Frison Gilles , Nay Bastien
Published: March 2023

The acid-catalyzed rearrangement of organic peroxides is generally associated to C-C-bond cleavages (Hock and Criegee rearrangements), with the concommittent formation of an oxocarbenium intermediate. This article describes the tandem process between a Hock or Criegee oxidative cleavage and a nucleophilic addition onto the oxocarbenium species (in particular a Sakurai-Hosomi-type allylation), under InCl3 catalysis. It was applied to the synthesis of 2-substituted benzoxacycles (chromanes, benzoxepanes), including a synthesis of the 2-(aminomethyl)chromane part of sarizotan, and a total synthesis of erythrococcamide B.
Microfluidic Enrichment of Intact Viral Particles by Stoichiometric Balanced DNA Computation
Authors: Huang Yihao , Wu Queyue , Zhang Jialu , Zhang Yuqian , Cen Shiyun , Yang Chaoyong , Song Yanling
Published: March 2023

Applications in health diagnostics, community safety and environmental monitoring require selective and quantitatively accurate active viral load assessment. Herein, we report a microfluidic enrichment strategy to separate intact SARS-CoV-2 particles by the AND logic gate with the inputs of cholesterol oligonucleotides for the envelope and aptamers for the spike. Considering the unequal quantity of endogenous spike and lipid membrane on SARS-CoV-2, a dual-domain binding strate-gy based on two aptamers targeting two spike domains was applied to balance the spike-envelope stoichiometric ratio. With the stoichiometric balanced DNA computation and the promoted microscale mass transfer of herringbone chip, the devel-oped strategy enables sensitively detection of pseudotyped SARS-CoV-2 with a limit of detection as low as 34 active virion/μL, but also distinguishes from their inactive counterparts, other nontarget viruses and free spike. Moreover, the captured viral particles can be released through DNase I treatment with up to 90 % efficiency, which is fully compatible with virus culture and sequencing. Overall, the developed strategy not only 100% identifies healthy donors (n = 8) and patients (n = 14) with SARS-CoV-2 infection, but also provides a novel perspective on regulating of stoichiometric ratio to achieve a more biologically appropriate DNA computation.
New Data on the Chronology and Stratigraphy of the Rakushechny Yar Site
Authors:   The State Hermitage Museum, Dolbunova E. V. , Mazurkevich A. N. ,   The State Hermitage Museum, Hamon C. ,   French National Centre for Scientific Research
Published: March 2023

Rakushechny Yar site, located in the Lower Don basin, is a multilayered floodplain settlement with a series of buried soils, where Neolithic-Eneolithic and Bronze Age cultural layers have been investigated. Dates with a wide calibration interval for materials from excavation # 1 obtained from total organic content of ceramics, food crust, and charcoal previously demonstrated the length of the Early Neolithic period ranging from the mid 7th millennium BC to the end of the 6th millennium cal BC. The new data allowed us to significantly adjust chronology of the site. A new series of dating based on animal bones from the Early Neolithic layers concentrate within a narrow chronological interval of a few decades around 5600 cal BC. This suggests that burying of archaeological remains was very rapid, and sand interlayers which separated them do not form significant temporal hiatuses. The archaeological layers are distributed within restricted surfaces and correspond to different episodes of coastal zone inhabitation. The variation in the number, thickness and character of the archaeological layers points to repeated episodes of inhabitation during Early Neolithic. The time when the Early Neolithic strata might have been closed differs at various parts – from the 5th mill to the 4th millennium cal BC (based on OSL and AMS dates). The contradictions that existed between the individual dates can be explained either by the reservoir effect (for food crust dating) or by the correlation of the dating from different sections, where layers were not deposited at the same time. It is complicated to determine the rate of deposition of Early Neolithic cultural strata, which may have occurred in a single season or possibly over a longer period of time. The series of dates obtained indicate successive occupation of the site. The change in the pattern of coastal inhabitation from small-scale households’ areas with shell paved platforms and pits to dwelling complexes with clay pavement floors and clay-covered walls/roofs occurred over a very short time. This may explain the homogenous nature of the Early Neolithic material culture and the production of a certain set of clay vessels, stone, bone industry, and shell tools.
Problems of Interpretation of Multilayered Geoarchaeological Sites: Microlayering, Macrolayering, and Cultural Layer
Authors:   Irkutsk State University, Berdnikova N. E. , Berdnikov I. M. ,   Irkutsk State University, Vorobiev G. A. ,   Irkutsk State University
Published: March 2023

The correctly documented stratigraphic position of cultural remains, as well as determining the nature of their inclusion in deposits (redeposited or in situ) are the basis for reliable geoarchaeological reconstructions. In a broad sense, cultural remains in deposits are defined as a “cultural layer / cultural level”. In world archeology, the study of cultural deposits is aimed at understanding the processes of site formation based on the symbiosis of natural science and “formation theory”. Understanding the features of the “cultural layer” depends on the nature and characteristics of the deposits. The concept of “layering” of deposits and the features of cultural deposits are interrelated. In Russian archaeology, there are several interpretations of the concept of “cultural layer”: geoarchaeological, archaeological, engineering-geological, and geographical-pedological. In geoarchaeological interpretation, natural deposits with cultural remains are considered as “culture-bearing” geological deposits, and deposits formed in places of long-term habitation are defined as “culture-genic” (anthropogenic) formations. In the first case, individual layers can be called “culture-containing”, in the second case, “cultural”. In culture-bearing deposits, archaeological materials can be found both in situ and in redeposited state. Culture-bearing deposits with in situ materials can be microlayered (thin-layered) in embryonic and underdeveloped soils or macrolayered in fully developed modern soil. Under these conditions, the soils were formed in different ways, and therefore the cultural remains in one visible layer can be archaeologically contemporaneous or chronologically heterogeneous. In the archaeological interpretation, the cultural layer is associated only with the remains of ancient settlements, and the features of the culture-bearing deposits remain out of focus. The engineering-geological interpretation does not distinguish between archaeological cultural deposits (older than 100 years) and modern technogenic strata, and even more so, the problem of layering of deposits is not disclosed. In the geographical-pedological interpretation, the main attention is paid to macrolayered culture-genic deposits. In order to obtain the most adequate understanding of the dynamics of cultures and technologies in the changing conditions of the surrounding paleoenvironment, in our opinion, the geoarchaeological interpretation of the concept of “cultural layer” is preferable.
Women in Wildfire Crises: Exploring Lived Experiences of Conflict through Forum Theatre (Creative Intervention)
Authors: Fontana Lorenza , Miramonti Angelo , Johnston Caleb
Published: March 2023

N/A
Conceptions of Portuguese Prospective Teachers about Real-Life Evolution Situations
Authors: Cavadas Bento , Sá-Pinto Xana
Published: March 2023

The importance of introducing evolution in primary schools has been highlighted in evolution education research, but few studies have approached the understanding of evolution of prospective teachers who are being prepared to teach at primary school level. The present exploratory study aims to answer three research questions about the ability of Portuguese prospective teachers to apply evolution to two real-life situations: 1) Are prospective teachers able to identify evolution misconceptions in online newspaper articles? 2) What misconceptions are expressed by prospective teachers when explaining real-life evolution situations? and 3) Which key evolution concepts do prospective teachers apply to make sense of real-life evolution situations? Twelve prospective teachers participated in the study. In the first situation, the prospective teachers were asked to identify statements from a newspaper article that would reveal evolution misconceptions and justify their choices. In the second situation, they were asked to read a text about SARS-CoV-2 and explain why scientists were worried about uncontrolled outbreaks of the virus. The prospective teachers’ answers were analysed through content analysis. Regarding the first research question, our results show that only half of the prospective teachers were able to identify teleological misconceptions in the newspaper article. Concerning the second research question, some of the prospective teachers either identified misconceptions in information in which there was no misconception, or revealed their own misconceptions in their explanations. Regarding the third research question, although more than half of the prospective teachers identified at least two key evolution concepts, some of them found it difficult to explain how evolution is related to the situation described. Although this is an exploratory study, it shows which key concepts of evolution the prospective teachers mobilised and identifies their misunderstandings, thus highlighting dimensions that should be addressed in their evolution education.
THE IDEAL CONCEPT OF ENERGY CONTROL IN INDONESIA FROM THE ECONOMIC CONSTITUTION PERSPECTIVE
Authors: Qurbani Indah Dwi , Rafiqi Ilham Dwi , Yofita Emilda , Rahma Nabila Aulia
Published: March 2023

Indonesia's energy transition trends are faced with many challenges and require support in several life sectors. Thus, the pledge of legal certainty and justice through the policies and legal arrangements has become a crucial factor. The present research employed normative legal research with a statutory, historical, and conceptual approach. The purpose of the research was to examine the regulation about energy control in Indonesia all this time and the prospects to regulate energy development from the economic constitution perspective. This study uses a normative juridical method with statutory, historical and conceptual approaches. The results had indicated that such a perspective became an ideal concept to be a basis, reference, and control to the energy regulation in the future. The economic constitution also implied that the economy was built as a shared effort referred to the principle of kinship. Consequently, each of the energy development elements, i.e., policy, management, regulation, and supervision had to be carefully measured for the sake of human’s prosperity. The development and use of renewable energy as the core energy source were strongly consistent with the actualization of economic welfare and safety among the people, which remarked the key to indicating the existence of the economic constitution.
THE LEGAL RECONSTRUCTION OF STATE CIVIL APPARATUS (ASN) IN REGULATING ASN PERFORMANCE IN THE ERA OF GLOBALIZATION
Authors: Suud Aghia Khumaesi
Published: March 2023

The era of globalization requires State Civil Apparatus (ASN) to understand information technology in carrying out public services. Until the discourse of Work From Anywhere (WFA) emerged as a form of changing the pattern of e-government performance to establish good governance. For this reason, a legal reconstruction of the ASN is needed so that it does not violate the merit system in the ASN Law. However, significant changes and training are needed in all respects to make this happen. By using normative juridical methods and secondary data, the author considers that it is necessary to analyze the reconstruction of ASN Law in regulating ASN performance in the Globalization Era and how the mechanism for changing digital-based performance patterns is. The result of this article is legal reconstruction is needed in ASN regulations and the discourse on implementing WFA for ASN can actually be carried out with a merit system mechanism that fulfills five performance indicators namely, productivity, service quality, responsiveness, responsibility and accountability well.
THE ROLE OF THE GOVERNMENT IN THE PROTECTION OF HEALTH WORKERS DURING THE COVID-19 PANDEMIC
Authors: Leonard Tommy , Pakpahan Elvira Fitriyani
Published: March 2023

This research aims to identify and analyze accountability in protecting the rights of health workers and complement each other in creating a balance of rights and obligations through preventive and repressive efforts. In this paper using normative juridical research methods and analyzed using qualitative data. The resulting research results state that legal protection for the safety of health workers due to the Covid-19 pandemic has not been implemented properly as mandated in laws and regulations, in carrying out the rights of health workers during the Covid-19 pandemic they are still neglected and have not been fulfilled. Therefore, the role and responsibility of the government is urgently needed to fulfill the rights of health workers as the frontline in handling the spread of Covid-19 in Indonesia.
Caregiver Experience in Potty Training Children with Down Syndrome
Authors: Purnamawati Rifka , Shaluhiyah Zahroh , Suryoputro Antono
Published: March 2023

Potty training assistance for children with Down syndrome is challenging because it takes longer to adapt and has physical and cognitive limitations. In addition, educating children with Down syndrome differs from one child to another. The study aimed to explore the role of parents or caregivers in teaching the potty training process to children with Down syndrome at States Special Needs School Semarang. The research was conducted using a qualitative phenomenological approach to determine parental participation in potty training in children with Down syndrome. Data collection was carried out by in-depth interviews and observations supplemented by field notes which were then transcribed verbatim. The search for informants used a purposive sampling method selected based on specific considerations with a total of 10 primary informants and those who cared for children with Down syndrome aged 7-14 years and were still in elementary school and two triangulated informants from teachers. Data analysis was carried out thematically. The results of the study found that the knowledge of most caregivers about potty training was limited to taking their children to the toilet, most of the children with Down syndrome were unable to urinate independently, the caregiver's difficulties when teaching potty training were problems communicating with the child, the caregiver's task in the potty training process was as follows: by finding solutions to make it easier for children to communicate and understand children's conditions. This qualitative research concludes that there is a theme regarding the role of caregivers with Down syndrome in potty training: caregiver knowledge about potty training, the behavior of children with Down syndrome during potty training, caregiver difficulties in potty training, and the caregiver's role or task in potty training.
Dirección escolar y liderazgo: análisis del desempeño del rol directivo en instituciones de educación públicas y privadas de Colombia
Authors: Ortiz Díaz Adiela Guimar , Losada Trujillo Adriana María , Rubiano Carvajal Ángela Cristina , Franco Fernández Angie Julieth , Panesso Mena Benicio , Aguirre Velásquez Brenda Yalile , Olaya Bohórquez Carmen Elena , Beltrán Caraballo Diana Marcela , Beltrán Pantoja Diego Armando , Cubides Parra Diego Mauricio , Barrios Eberilda Del Carmen , Mora Navarrete Eloina , Ortiz Osorio Fernando , Morales Tobón Frank Horacio , Monras Muñoz Gabriel Enrique , Torres Suarez Gloria Patricia , Contreras Sánchez Hernán Darío , Ospina Malagón Ivonne Astrid , Pájaro Pineda Jairo Enrique , Toloza Reyes Javier Enrique , Barrios Velilla Jhon Jairo , Martínez López Johany Andrés , Soto Giraldo Jorge Orlando , Urrego Carrillo José Alejandro , Orjuela Abril Juan Carlos , Gaviria Uribe Lorena , Giraldo Velásquez Luz Aleida , Díaz Puerto Marcela Cristina , Muñoz Ome Mari Dolí , Rojas Tovar María Genis , Muñoz Diaz Milton Rolando , Castillo Ramos Osmiro , Arenas Montiel Sandra Milena , Villada Aristizábal Valeria , Castillo García Yanneth
Published: March 2023

La educación es el medio fundamental por el que todo ser humano construye conocimiento y aprende a vivir en sociedad. Esta no solamente comprende el ejercicio de aprender y enseñar en centros educativos, sino que también es un proceso ligado a la vida diaria. La presente obra busca visibilizar investigaciones que, desde diferentes puntos de vista, reflexionan sobre las instituciones educativas en relación con quienes asumen su gestión. A lo largo de los nueve capítulos que componen esta publicación, se abordarán los temas de dirección escolar y liderazgo. En el primer capítulo titulado Metacognición hacia la transformación social los autores hacen un recorrido por diferentes conceptualizaciones acerca de la metacognición hasta detenerse en sus procesos y objetivos, siendo estos últimos conectores fundamentales entre los aspectos sociales y los aprendizajes en el ámbito educativo. Se contribuye con este análisis reflexivo a dar respuesta al cómo, el para qué y el por qué la educación es pilar fundamental en la conformación de una sociedad, en un contexto, con objetivos comunes y aspectos culturales propios.
A novel multiplication design based on LUT method
Authors: Tharun Kumar Reddy M. , Bharathi M. , Padmaja N. , Ashreetha B.
Published: March 2023

Every digital signal processing application performs multiplication operations. The addition and shift operations are part of multiplication operation. Many ideas have been created for computing systems with different design goals in terms of power, area, and speed. Typical architecture of these applications include digital signal processor (DSP), fast Fourier transform (FFT), and Multiply and Accumulate (MAC) unit. This paper offers a new way to increase the speed of DSP systems. This method uses four 2x2 LUT (look-up table) multipliers to demonstrate it at a 4x4 multiplier. The proposed multiplier was created using the Xilinx Vivado software and programmed in the Verilog HDL language. In addition, the delay, area, and power consumption of the proposed multiplier design differ from those of conventional multipliers. The simulation results show that, compared to typical methods, the operation consumes less power, reaching only 3.751 W compared to the conventional multiplier of 4.804 W, and shows lower latency.
Efficient chatbot for complaint registration
Authors: Manoj Singh , Hitik Mall , Rahul Choudhary , Abhijeet Khandelwal , Saket Verma
Published: March 2023

This is a web application designed to manage all police stations in the area. The system consists of four modules, such as the admin module, investigator module, user module, and visitor module. The user is the one who registers the complaint after logging in. The visitor is a user without registration. Visitors can view live news, helpline numbers, and a list of missing persons. In the area, all police stations are managed and administrated by the Superintendent of Police (SP) in this application. Complaints will be taken by the investigator (Police Sub Inspector (PSI)) of the police station entered by the user. If the investigator cannot resolve this complaint, they may forward this complaint to the administrator. The Administrator manages the complaints sent by the investigator and assigns the cases to a higher investigator such as a Circle Inspector (CI), Deputy Superintendent of Police (DSP), etc., and the admin will manage the police stations working under its control. The investigator processes the cases assigned by the administrator and resolves it. Conversational interfaces, also called chatbots, are the best and newest way to get people involved in working with computer systems. Optimizing the use of chatbots between services and people enhances the customer experience. At the same time, companies are being given new opportunities to improve operational efficiency and the customer experience process by reducing typical customer service costs. To be successful, a chatbot must perform these tasks effectively. Human support is needed when approaching. Human intervention is critical to optimizing, customizing, and training a chatbot system.
OCR-based vehicle number plate recognition powered by a raspberry Pi
Authors: Bharathi M. , Padmaja N. , Dharani M.
Published: March 2023

Modern technology has revolutionized automation. Security is at high priority with increasing automation. Today, to help people feel comfortable, video surveillance cameras are installed in public places like schools, hospitals, and other buildings. The main goal of this research work is to automatically collect vehicle images with a camera using a Raspberry Pi and recognising the licence plate of the vehicles. Vehicle number plate recognition is a challenging but crucial system. This is highly helpful for automating toll booths, identifying automated signal violators, and identifying traffic regulation violators. In this work, a Raspberry Pi is used for vehicle license plate recognition, which uses image processing to automatically recognize license plates. Incoming camera footage is continuously processed by the system to look for any signs of number plates. When the camera detects a number plate, Optical Character Recognition (OCR) technique is used to process the image and extract the number from it. The distance to an object is calculated by a sensor utilizing sound waves. The extracted number is then displayed by the system. This can be used for additional authentication.
Using electronic-collaborative mentoring in higher education-bettering elt student teaching practice processes
Authors: Erdem Aksoy
Published: March 2023

This study aims to improve English Language Teaching (ELT) student teachers' teaching practice process with comprehensive and diverse feedback from four different mentors (two national and two international) and to help them better prepare lesson plans and micro-teaching considering intercultural perspectives. Non-parametric tests were used to analyze quantitative data gathered from the scores of five lesson plans and micro-teachings. Qualitative data were obtained from the written feedback to lesson plans, oral feedback to micro teachings and interviews, and analyzed by content analysis. Results showed that mentees' lesson plan and micro teaching scores increased significantly over the semester and this was especially notable in mentees' first three lesson plans and micro teaching. All participants favoured the study activities and suggested that e-co mentoring should be implemented together with face-to-face mentoring in some periods.
Cyber safety and security awareness initiatives in india - a systematic review
Authors: Santhosh T. , Thiyagu K.
Published: March 2023

Cyberspace-related risks have increased massively due to the absence of awareness and self-resistance among Internet users to safeguard themselves. One of the vital measures to cultivate knowledge and understanding is the holistic intervention of cyber safety and security programs. Creating awareness through cyber safety and security initiatives is such a great way to address the issue in detail. It ultimately strengthens the discourse about online safety. There are a large number of awareness initiatives available worldwide that meet the requirements of the online community. This paper tries to highlight such initiatives in India to promote awareness about cyber safety and security.
Implementation of haze removal algorithm to enhance low light images
Authors: Maheswari K. , R. Charan Kadapa
Published: March 2023

The image is captured in foggy atmospheric conditions, resulting in hazy, visually degraded visibility; it obscures image quality. Instead of producing clear images, pixel-based metrics are not guaranteed. This updated image is used as input in computer vision for low-level tasks like segmentation. To improve this, it introduces a new approach to de-hazing an image, the end-to-end approach, to keep the visual quality of the generated images. So, it takes one step further to explore the possibility of using the network to perform a semantic segmentation method with U-Net. U-Net will be built and used in this model to improve the quality of the output even more.
A study on factors affecting online food delivery experience
Authors: Poonam Arora , Ritika Singh , Mohit Soni , Karan Singhal
Published: March 2023

Before the pandemic, restaurants were gradually adapting to the food delivery platforms along with dine in. As the pandemic came in, people suddenly proceeded to live in their homes a lot more and do leisure activities from the comfort of their homes. As the pandemic surged and the implementation of government rules came into existence, consumers stopped dining-in. The only medium of resort was the adoption of digital aid. This study aims to understand the various factors that affect the Online Food Delivery Experience (OFDO). This quantitative study was conducted on 354 respondents following a descriptive research design using a structured questionnaire. The study showed that factors such as time-saving orientation, hygiene maintenance, good food quality, good e-service quality, and technological readiness among people have a positive influence on the Food Delivery platform experience. Where as, fear of privacy and security and perceived threats have a negative impact on the food delivery platform experience. A Chi-square test was used to analyse the influence of various factors such as time-saving orientation, E-Service quality, food quality and hygiene on the experience with food delivery platforms.
Synthesis of SrBaFexMo2-xO6 (x=1.0, 1.1, 1.3 and 1.4) double perovskites by sonication: characterization and electron spin resonance studies
Authors: Varaprasad S. , Laxminarayana G. , Ramana M. , A. Ramachander Rao , L. Koteswara Rao
Published: March 2023

This paper presents influence of ultrasound-assisted method on structure, tolerance factor, density and Electron spin resonance studies of SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3 and 1.4) (SBFMO) double perovskite. SrBaFexMo2-xO6 double perovskite was synthesized by sonochemical procedure at low temperature (9500C) under Ar/ H2 atmosphere. X-ray diffraction studies revealed a single phase with a cubic crystal structure for all the samples. The existence of all elements (Sr, Ba, Fe, Mo, O) contamination-free in the required percentage in SBFMO compound has been analyzed by Energy Dispersive X-ray Spectroscopy (EDS). Goldschmidt Tolerance factor 't' has been used to quantitatively predict the stability 1 and closeness of A2BxB12-xO6. Density measurements for all samples of SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3 and 1.4) were done both theoretically and experimentally. Electron Spin Resonance (ESR) spectra of SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3 and 1.4) were studied to determine the iron state in the compound by varying magnetic field at a constant frequency (X-Band).
Direct removal of nitrate and phosphate anions together in a continuous fixed bed column down flow technique
Authors: K. Mohan Reddy , Amit Kumar , Samarth Pratap Singh
Published: March 2023

Synthetic adsorbent was used for the direct removal of nitrate and phosphate anions from aqueous solution. Synthetic absorbent was prepared in laboratory using different processes, which have high adsorption capacities for effective removal of selected ions in a column chromatography. Chitosan-reduced graphene-SiO2 in a column was used as a potent adsorbent for this selected method and final results were compared with another approach using chitosan-SiO2 in a Photo Catalytic Reactor (PCR). PCR process is easier, but the removal efficiency is less when compared with the Fixed Bed Column (FBC). The removal percentage using fixed bed column with a potent adsorbent was greater than 60% whereas it is less than 35% using photocatalytic reactor. Adsorption of nitrate and phosphate from aqueous solutions on both photocatalytic reactor and continuous fixed-bed column are studied with effects of various parameters such as contact time, dosage of adsorbent and pH of the aqueous solutions. Absorbents were fabricated using sol-gel for nano silica, chitosan and thermal heating method for reduced graphene oxides. Out of these, fixed bed columns with chitosan-reduced graphene oxide - SiO2 performed better when compared with the chitosan-SiO2 in a photocatalytic reactor.
Study on supplementary cementitious materials for sustainable development of concrete
Authors: Samreen Bano , Farheen Bano , Syed Aqeel Ahmed
Published: March 2023

Modern society makes extensive use of concrete for construction. The demand for concrete is increasing daily as a result of the expansion of urbanization and industrialization. To produce concrete, a lot of raw materials and natural resources are needed. A significant quantity of industrial waste, agricultural waste, and other types of solid material disposal are simultaneously creating significant environmental problems. The use of artificial wastes as supplementary materials, the source of which are both reliable and suitable for alternative preventive solutions, promotes the environmental sustainability of the industry by minimizing and reducing the negative effect of the concrete industry due to the explosive usage of raw materials. Recent use of such products to be utilized as a partial replacement for Portland cement (PC) in cementitious systems is investigated in terms of material qualities and the extent to which they can be replaced in cementitious systems. In particular, Supplementary Cementitious Materials (SCM) can improve material qualities such as flowability, strength and durability. Conventional concrete was utilized as the design mix proportion, with 10%, 20%, 30%, and 40% of the cement being replaced with industrial waste such as fly ash and hypo sludge. The test's 30% replacement level produced the best compressive stress when waste paper was used, where strength is less important or where the construction is only expected to be used temporarily, and design mix proportions up to 40% replacement can also be used. The optimal level of Rice Husk Ash (RHA) replacement in concrete is 10%, which has been shown to significantly increase compressive strength at 28 days when compared to the control mix. It reveals that the Palm Oil Fuel Ash (POFA) concrete, used as a concrete control in this investigation, has a higher compressive strength than Ordinary Portland Cement (OPC) Concrete. This paper examines the potential application of industrial and agricultural wastes as additional cementitious material in the manufacture of concrete. It focuses on describing the engineering, physical, and chemical properties of these wastes to demonstrate the concept of using them. This gives an overview of the knowledge that is now available regarding the successful use of synthetic wastes in the concrete industry, including fly ash, slag, silica fume, rice husk ash, palm oil fuel ash, sugar cane bagasse ash, wood waste ash, and bamboo leaf ash.
Wind energy potential in sindh region
Authors: Muhammad Awais
Published: March 2023

Electricity occupies an important place in the socio-economic recovery and social prosperity of any country. This should be taken into account because of the fundamental need for human improvement. At present, low power generation is a major problem in Pakistan, which immediately hampers the development of the country. 1/3 of the population of Pakistan has no electricity domestically in rural areas, and in urban areas, power cuts are approximately eight to ten hours, which is quite common. Although Pakistan constantly points out shortages in traditional sources, no further developments are being made in renewable sources such as wind. Thus, it is much better to use these natural resources to meet the needs of Pakistan. This paper explores the potential of wind energy in the Sindh region and the potential for the country.
Secure dynamic wireless communication in MANET
Authors: V. Rajesh Kannan
Published: March 2023

Due to the mobility of the nodes, the topology often changes, causing the link to fail. Lack of infrastructure support and limited resources are the main causes of dishonest and uncooperative nodes, and in finding a route to a destination and opening new routes. As a result of the frequent discovery, there is large network congestion that occurs. Multipath routing protocols are designed to find multiple routes to a target, and switch to a backup secondary path if the primary route is violated to avoid this. These protocols also provide better routing performance and security. This paper examines two ondemand MANET protocols, a Trusted Secure Dynamic Source Routing (TS-DSR) and a Modified Trusted Secure Dynamic Source Routing (MTS-DSR), as well as a mechanism for gateway discovery on demand.
Agreement between qSOFA and NEWS scores in the screening of sepsis through Monte Carlo simulation
Authors: Mendes Miguel Damásio Cardoso , Kock Kelser de Souza
Published: March 2023

Introduction: The early warning scores used for sepsis have different risk stratification and accuracy metrics, which can delay diagnosis by the health team. Aim: The study aims to evaluate the agreement and differences between the qSOFA and NEWS criteria in the early detection of sepsis risk in a defined population through a computer simulation. Outlining: A computer simulation was performed using the Monte Carlo method. 10,000 cases were simulated based on the variables described by the NEWS and qSOFA scores.  Results: After evaluating the 10,000 cases, qSOFA≥2 proved to be less sensitive (22.22% (95% CI 21.00 – 23.49)) than NEWS≥7 (93.41% (95% CI 91.72 – 94.78)). When analyzing specificity, NEWS≥7 (62.99% (CI 95% 61.98 – 63.98)) was lower than qSOFA≥2 (98.83% (CI 95% 98.52 – 99.08)). Agreement was 66.08% (95% CI 65.15 - 67.00). Implications: The study showed good agreement between the scores and also showed that NEWS is superior to qSOFA when analyzing sensitivity, but the result is reversed when talking about specificity.
PENERAPAN PROBLEM SOLVING TERHADAP PENINGKATAN PRESTASI BELAJAR SISWA PADA MATERI STOIKIOMETRI MASA PANDEMIK COVID-19
Authors: Sa'diyah Halimatus , Fatayah Fatayah , Priyasmika Rendy
Published: March 2023

Tujuan penelitian ini adalah untuk mengetahui penerapan problem solving terdapat peningkatkan prestasi belajar siswa kelas X SMA Sunan Drajat pada materi stoikiometri di masa pandemik COVID19. Rancangan yang digunakan yaitu pra-eksperimen one group pratest-postest. Pada penelitian ini populasinya adalah seluruh siswa kelas X SMA Sunan Drajat dengan jumlah 55 siswa. Sampel pada penelitian ini adalah Kelas X IPA dengan jumlah siswa 25 orang, dipilih dengan menggunakan teknik judgment sampling karena hanya ada satu sampel tersebut. Data dalam penelitian ini merupakan dua sampel yang berhubungan sehingga analisis data menggunakan uji Wilcoxon (non parametrik) karena data tidak berdistribusi normal. Uji Wilcoxon diolah menggunakan bantuan program SPSS 25. Hasil yang diperoleh nilai signifikansi 0,00 dan taraf kesalahan dalam penelitian ini sebesar 0,05 sehingga dapat disimpulkan bahwa penerapan problem solving dapat meningkatkan prestasi belajar siswa kelas X SMA Sunan Drajat pada materi stoikiometri.
Body Composition And Motor Abilities Of Young Football Players
Authors:   Faculty of sport and physical education, University of Niš, Mijalković Stefan , Mladenović Kristina ,   Faculty of sport and physical education, University of Niš, Ilić Tamara ,   Faculty of sport and physical education, University of Niš
Published: March 2023

The aim of this study was to explore the correlation between body composition and motor abilities of young football players. The sample of respondents consisted of 18 football players with a mean chronological age of 14.9 ± 0.28 and with a sports experience of 7.83 ± 2.07 years. The monitored variables of body composition were: body height, body mass, muscle percentage, fat percentage and body mass index. Subsequently, the assessment of motor abilities was carried out by the following tests: speed (10, 20 and 30m sprint), agility (Slalom, Agility T-test and Illinois) and explosive power (Counter Movement Jump, Counter Movement Jump With Arm Swing and Squat Jump). Results indicated that there was a statistically significant positive correlation between body composition and motor abilities of football players. Therefore, it could be concluded that physical preparation together with good monitoring of body composition parameters could lead to the achievement of maximum sports performance.
Some remarks on the duality of the concept of time in the lexicon of Tok Pisin
Authors: Kosecki Krzysztof
Published: March 2023

The duality of the concept of time in Tok Pisin, an English-lexified creole and one of the official languages of Papua New Guinea, manifests itself in the Melanesian-European elements that make up its temporal lexicon. Expressions that reflect the local semantic-cultural substratum – motivated by astronomical, natural, and religious events – have functioned side by side with their counterparts provided by the English superstratum, which reflect clock measures of time and represent it as a resource and money. The competing impact of indigenous and Western elements is also present in representations of time as space and in forms of temporal succession. The analysed expressions show that the concept of time in Tok Pisin not only reflects partial Anglicization, but also shares cross-linguistically common patterns of time construal with non-contact languages having much longer histories.
The facilitatory role of utterance splitting in text-based CMC
Authors: Placiński Marek
Published: March 2023

This paper focuses on the role of the structure of turns in quasi-synchronous text-based computer mediated-conversation. Prior research has found that interactants in this type of communication submit their messages in two ways: either as a long single message or as a sequence of shorter postings. We hypothesize that the latter strategy – called utterance splitting – facilitates communicating online both in terms of turn-taking (initiation of repairs and holding the floor) and sentence processing (predicting informational content and lowering entropy). To evaluate the hypothesis, an experiment in which naive participants interacted with a confederate writer was conducted. We found that although communicative success did not depend on the condition to which the participants were assigned, the conversations in which the confederate sent split utterances were, on average, shorter and re-quired less words to communicate the same intention.
Hadis Kehujjahan Hadis Menurut Imam Empat MaÅ¼hab (Studi Analisa Terhadap Metode Penyusunan Al-Kutub Al-SittaÄ§ )
Authors: Hidayat Tatang , Sumarna Elan
Published: March 2023

This discussion aims to find out how the four madhab imams explain the hujjah (concept of arguments) of ahad hadith specifically in the al-Kutub al-SittaÄ§ . This discussion used a qualitative approach with a literature study method. Based on the results of the discussion, the four imams have different views on the hujjah of ahad hadith. However, they agreed to use hadith as a secondary source of Islamic laws after the Qurâ€™an. Based on the compilation of all hadith books which belong to al-Maá¹£Ädir al-Aá¹£lÄ«yah, scholars of the hadith agree that the hadith books of Imam BukhÄrÄ« and Imam Muslim are the most authentic. The implications of this article indicate that the existing hadiths, which are compiled in al-Kutub al-SittaÄ§, are a collection of hadits that can be scientifically accounted for in terms of their quality, so that it is no doubt to use them as one of the sources of the Islamic laws after the Qurâ€™an.
Word Interpretation of â€œSÄ«rÅ«â€ in Alquran and Its Relevance with Halal Tourism
Authors: Adinugraha Hendri Hermawan , Ulamaâ€™i Ahmad Hasan Asyâ€™ari , Maulana Asep Suraya
Published: March 2023

Halal tourism is one of the current trends in sharia business trends (State of the Global Islamic Economy 2017-2018). This proves that the term halal which was formerly just something that is permissible in Islam, has now become a necessity and lifestyle for Muslim communities in the country even on the international scene. Because these tours use halal branding that cannot be separated from Islamic sharia, this study aims to explain the concept of halal tourism in the Qurâ€™anic perspective. This research is a qualitative research through research literature sourced from interpretation books both offline and online, journals relating to halal tourism propositions and other primary text sources. This study uses a descriptive analytical approach. The results of the literature review analysis show that the application of halal concepts in tourism is proof of the flexibility of Islamic sharia at a practical level. The argument regarding the command to consume halal products has been written in the Holy Qurâ€™an, Surat al-Baqarah, verses 162 and 172, and looking for something lawful for every Muslim in daily life is to have a law that must be carried out, this is based on the Prophetâ€™s words: â€œlooking for the lawful is obligatory for every Muslimâ€ (HR Thabrani). The tourism in the Qurâ€™anic perspective is contained in the following verses: Q.S. Al-Mulk verse 15, Q.S. Al-â€™Ankabut verse 20, Q.S. Ali â€˜Imron verses 137 and 191, Q.S. Al-â€™Anâ€™am verse 11, Q.S. An-Naml verse 69, QS. Al-Muâ€™min verses 21 and 64, Q.S. An-Nahl verse 36, Q.S. Ar-Rum verse 42. The sentence Ø³ÙÙŠØ±ÙÙˆØ§ ÙÙÙŠ Ø§Ù„Ù’Ø£ÙŽØ±Ù’Ø¶Ù in the Qurâ€™an other than as a proposition for travel, the sentence instructs people to explore and explore all of Allahâ€™s creation, because Allah also likes aesthetics or beauty. The application of the concept of halal on tourism is always accompanied by the implementation of the concept of thayyib and does not cause damage, because the combination of the concepts of halal and thayyib in travel will result in tourism full of blessings
MEANS AND METHODS OF PSYCHOLOGICAL TRAINING OF ATHLETES
Authors: A.K. Namazov  , N.B. Majidov  , A.V. Mukhina  , K.A. Namazov
Published: March 2023

The problem of psychoregulation in sports is one of the most actual due to the high importance of the psychological factor in sports activities. Psychoregulation is the subject of research by a number of sports psychologists, and for the most part it was developed in the field of managing the prestart state of the athlete.
Potensi Ekstrak Daun Eceng Gondok (Eichornia crassipes (Mart.) Solms-Laub.) sebagai Bioherbisida untuk Mengendalikan Gulma pada Padi Sawah
Authors: Utomo Wahyu , Guntoro Dwi
Published: March 2023

Biomassa gulma eceng gondok (Eichhornia crassipes) mengandung zat allelopati yang dapat dimanfaatkan sebagai bioherbisida. Penelitian bertujuan untuk mengetahui potensi ekstrak eceng gondok sebagai bioherbisida untuk mengendalikan gulma pada padi sawah. Penelitian dilaksanakan pada November 2016 hingga Agustus 2017 di Kebun Percobaan Cikabayan dan Laboratorium Ecotoxicology Waste and Bioagents, Departemen Agronomi dan Hortikultura, IPB.  Percobaan disusun dalam rancangan kelompok lengkap teracak (RKLT) dengan satu faktor, dan empat ulangan.  Perlakuan konsentrasi ekstrak yang diuji yaitu 0%, 5%, 10%, 15%, 20%, dan 25% (bobot/volume). Hasil penelitian menunjukkan bahwa ekstrak metanol biomass eceng gondok dapat menekan pertumbuhan gulma spesies Echinochloa colonum, Ludwigia octovalvis, dan Fimbristylis miliacea. Konsentrasi ekstrak 25% memperlihatkan penekanan pertumbuhan gulma uji yang tertinggi. Gejala kerusakan gulma yang ditimbulkan yaitu klorosis dan nekrosis.

Kata kunci: alelopati, klorosis, methanol
Pengaruh Psychological Factors, Financial Literacy, dan Paylater Misuse terhadap Compulsive Buying pada Pengguna Aplikasi Paylater di Jabodetabek
Authors: Namira Nurul Alhakim  , Stevia Septiani  , Eka Dasra Viana
Published: March 2023

The increasing trend of online shopping through e-commerce during the COVID-19 pandemic is also supported by the development of digital payment method, one of which is paylater. Paylater allows consumers to buy now and pay later in monthly installments. Paylater growth in Indonesia can encourage the development of the digital economy and is in line with sustainable development goals (SDGs) number 8, namely increasing inclusive and sustainable economic growth. However, if not controlled, the use of paylaters actually risks triggering compulsive buying behavior and increasing the amount of debt owned by consumers. This research aims to analyze the characteristics of paylater users in Jabodetabek, analyze the influence of psychological factors and financial literacy toward paylater misuse, and analyze the influence of psychological factors, financial literacy, and paylater misuse toward compulsive buying behavior. The sample of this research was 275 respondents of paylater users in Jabodetabek. The research sample was determined using the non-probability sampling method, types convenience sampling and quota sampling. Furthermore, the research results were analyzed using descriptive analysis and Structural Equation Modeling-Partial Least Square (SEM-PLS). The results of this research show that psychological factors, financial literacy, and Paylater misuse hAVE a positive and significant effect on compulsive buying.
HISTÓRIAS AMERÍNDIAS: EDUCAÇÃO, RELIGIÃO E RESISTÊNCIA ENTRE OS PAKAAS-NOVOS DE RONDÔNIA DE 1965 A 1984
Authors: NEVES Josélia Gomes
Published: March 2023

Este texto analisou em perspectiva histórica a educação formal e sua relação com a religião de 1965-1979 no contexto Pakaas-Novos. A metodologia adotada foi a pesquisa documental digital interpretada através das Pedagogias Freireanas. Foi possível observar que a escola instalada para os Pakaas-Novos iniciou após o contato oficial, por meio da atuação da Missão Novas Tribos do Brasil com autorização estatal para fins de evangelização e de integração nacional. Apesar destas situações-limites, os Pakaas-Novos elaboraram resistências por meio da manutenção das práticas culturais e da apropriação do conhecimento escolar, a partir de seus interesses, aspectos importantes para as Histórias Ameríndias.