bluuebunny/crossref_metadata_2025 huggingface dataset:
DC Motor Identification Based on Quasi-Optimal Nonlinear Control Algorithm
Authors: Lekomtsev P V , Nikitin Yu R , Trefilov S A
Published: July 2021

Рассмотрена идентификация двигателя постоянного тока, основанная на квазиоптимальной цифровой модели управления. Идентификация двигателя постоянного тока предполагает уточнение таких параметров двигателя, как сопротивление и индуктивность обмотки якоря, магнитный поток статора, коэффициент вязкого трения в опорах привода. Эти параметры входят в матрицу состояния и определяют величину напряжения при реализации квазиоптимального нелинейного алгоритма управления. Их изменение в процессе деградации или определенных условий эксплуатации привода приводит к несоответствию состояния модели истинному и, как следствие, повышению энергопотребления и времени переходных процессов. Предложена методика расчета критерия идентификации для нелинейной системы управления в дискретной форме. Определитель матрицы измерения вычисляется на каждом шаге дискретного времени. Их анализ показывает, что идентификация двигателя возможна в переходных режимах. При отклонении сопротивления обмотки якоря двигателя от номинальных существенно увеличивается время переходного процесса и величина перерегулирования. При уменьшении сопротивления цепи якоря на 25 % меньше номинального значения определитель матрицы измерения двигателя достигает порогового значения критерия идентифицируемости. Таким образом, потеря идентифицируемости говорит о наличии дефекта. Полученные результаты исследования могут быть использованы для обнаружения дефектов приводов.
Applications of Plantar Pressure Measurement- A Review
Authors: . Bharanidharan
Published: July 2021

Foot plantar pressure is the pressure field that acts between the foot and the support surface during locomotor activities. Information obtained from such pressure measurement gives us ankle and foot functions during gait and other activities. The ankle and foot provide the required support to do different activities like walking, playing, running etc. Data from plantar pressure measurement is crucial for diagnosing lower limb problems, designing a footwear, sport biomechanics, injury prevention and diagnosis. This paper concentrates on the applications of foot plantar pressure measurement in different fields and its future scope.
Simulation of Electric Bike using Simulink
Authors: Tharun Chittala
Published: July 2021

Modern world demands the high technology which can solve the current issues and future problems. Now-a-days Fossil fuel shortage is the main problem. Considering current rate of usage of fossil fuels will let its life up to next five decades only. Because of undesirable change in climate is the red indication for not to use more fossil fuel any more. Best alternative for the automobile fuels to provide the mobility & transportation to peoples is sustainable electrical bike. Future e-bike is the best technical application as a visionary solution for the better world, upcoming generation and environment. E-bike comprises the features like high mobility efficiency, compact, electrically powered, comfortable riding experience, light weight vehicle. E-bike is the most versatile current and future vehicle considering its advantages.
Random Forest Classifier Based Network Intrusion Detection System
Authors: Dutta Aadhar
Published: July 2021

In today's digital world, we all use the Internet and connect to a network, but all the data we send or receive, is safe? Some kind of attack is present in network packets that might access the computer's private information to the hacker. We cannot see and tell whether a network is safe to connect with or not, so we made a Network Intrusion Detection Model predict whether these network packets are secure or some attack is there on the package. We use Random Forest Classifier to obtain the maximum accuracy. To test our model in real-time, we have created a packet sniffer that would sniff out network packets, convert them into required features, and then try it in our model to predict the legitimacy of the network packet.
Review on Standalone Photovoltaic Water Pumping System using Induction Motor Drive
Authors: Nimaje Kunal
Published: July 2021

The project introduces a simple, low-cost agricultural pumping system. PV, Canonical Switching Cell Converter (CSCC), Boost Inverter and Motor Induction List. The input power of the booster inverter comes from CSV-based photovoltaic (PV). Requires a minimum number of current input elements that do not have the high characteristic power of a CSC converter. DC power conversion from a PV-converted CSV-based system to high voltage AC is achieved using inverter reinforcements. The system verified the maximum power output in the PV system using the P&O MPPT algorithm. Due to the CSC converter and the inverter boosting converter, this system requires a small number of PV series to start the induction motor pump system. The effectiveness of the proposed system will be verified by the MATLAB / SIMULINK environment and the required results will be displayed.
Design and Analysis of Actual Soot Cleaning System for Fire Tube Boiler
Authors: Tembhurne Pratik P.
Published: July 2021

Soot blowers are used to control a boiler with high power to release dirt from the heat transfer surfaces towards the gas. They are additionally accustomed to gas pass closure. They are mechanical devices used to clean gas side boiler ash and deposits online on a periodic basis. They dictate To get rid of the ash deposited on the coil and improve the heat transfer power, the operating medium through the nozzle against the soot or ash deposited on the heat transfer surfaces on the boiler. Sort the blowers in boilers in many places such as water walls, super heaters, economists and air preheaters. Watch for heat transfer soot blowers and efficiencies do not improve. Therefore, the design and analysis of soot burners can effectively increase boiler power in power plants.
Enhancement of Orientation of Corn Shelling Machine
Authors: Patil Sumit V.
Published: July 2021

Shelling is one of the most responsible and post-harvest operations of the plant. Production of various types of grain, peeled from the bark and traditionally. It is a traditional show of corn and the most time-consuming activities included hard work, grain loss and felling, chipping through a bite, using sticks, and using animals to step on multiple locations. Modern corn huskers tend to be large and heavy, high energy, which require high scaling capabilities. Additional expenses, the purchase of huskers, this is a high level of agriculture, small farmers-owners. Therefore, the aim of this study is to design, construct, and evaluate the performance of a small corn husker engine management system. It was built with both local, affordable materials and its cost is very low and affordable. The main components of the machine are: hood, scale block (musician, drum and concave), outer cover, shaft, frame and exhaust port. The location of these elements in relation to the belt and pulley. Engine capacity of 2 HP. provides drive through pipeline connections with the drive pulley show in between. Existing methods in the case of maize, de-zoom, the agro-industrial complex consists of crushing grain manually or using machines to the proper extent, and not one of them is effective, so as not to invest money in the development of the economy, public relations. Therefore, there is a need for an innovative idea for a product that is feasible, safe, cost-effective and efficient for the Indian farmer.
GSM Based Automatic Irrigation System
Authors: Karthik P.
Published: July 2021

Agriculture plays a significant part in India's food production development. Agriculture in our nation is reliant on the monsoons, which provide little water. As a result, irrigation is utilised in agriculture. Water is given to plants in an irrigation system based on the soil type. An automated irrigation system based on ARMs and a GSM module is presented in this article. The proposed system is a machine-based system that automates land irrigation by integrating multiple software and hardware techniques to locate precise field information and offer instantaneous watering across the area. Sensors, an LCD display, GSM, and an ARM7LPC2148 CPU are all included. The LCD will be used for field display. A Subscriber Identity Module (SIM) will be included in the GSM module, and users will be able to interact using this SIM number. When the user activates or gives a command, the appropriate sensor activates and reads the current reading, sending the data to the same user's mobile phone and displaying them on the field's LCD panel. If necessary, the user will immediately take the appropriate action. We're utilising sensors to keep track of the field's condition. Temperature and level sensors are what those are. The ARM CPU is linked to all of these devices. GSM is utilised for communication, and we may communicate with the components via AT (attention) commands. We use motors for level sensing applications.
Re–Refining of Used Lube Oils and Sustainability
Authors: Joseph Dr. Elizabeth
Published: July 2021

As petroleum products continue to be an inseparable part of our lives, so does the waste that is generated from these products, the prominent among them being the used lubricating oil. However, research shows that more than half of the used lube oil can be converted back to usable lubricant through the process of re–refining. This can certainly reduce the amount of waste oil in the environment and the need of crude oil extraction to a certain extent. As there are various different methods of re–refining, this work focused specifically on the method used widely in India, i.e., Vacuum distillation with Clay treatment. In this paper, the sustainability of the re–refining process was checked using the green chemistry principles and overall material balance of the process. Based on the assumptions made for the material balance, nearly 69.92% of lube oil base stock was obtained along with 11.13% fuel by - product and 12.14% residue, both of which have varied uses in the industry, thus producing additional profit.
MyCart : An Online Shopping Platform
Authors: Jain Vinay Kumar
Published: July 2021

Online shopping has obtained very important position in the 21st century as most of the people are busy, loaded with hectic schedule. In such a situation online shopping became the easiest and most suitable mode for their shopping. This paper describes the development of an e-commerce Web site based on a virtual world that replicates a real store in order to offer a more familiar interface to the user, but overcoming the problems of reality offering a customized presentation of items to each consumer. The technology used is Java. The system architecture is based on a client/server model, where the server manages the description of the items.
Effect of Marble Dust & Rice Husk Ash to Stabilize Expansive Soil
Authors: Ambagade Shreya
Published: July 2021

Soil Stabilization is the alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and/or control the shrink-swell properties of a soil, thus improving the load bearing capacity of a sub-grade to support pavements and foundations. The Engineering Properties of soil are depended on the many points like minerals, water table, soil water behaviour etc. which vary as per area to area. Due to which we can’t get desire properties suitable to our needs of construction. To resolve this problem, we have technique called stabilization which means to stable or to modify or to improve the soil properties in positive manner. So, we can have a construction works which fulfil our needs and objective.
Overview on Manufacturing of Tiles from Plastic Waste
Authors: Somwanshi Ramatai
Published: July 2021

Plastic waste is a non-biodegradable waste which cannot decompose and this creates water, land pollution and air pollution. Also, while we burn the plastic waste in Dumping Ground, the percentage of plastic waste is increasing rapidly. It is estimated that the plastic waste will double after a decade as we use hundred grades of plastic in our daily life. We can recycle, reuse the plastic waste. As a civil engineer we have to innovate something new related to this, which is a boon for civil engineering. So, here we try to do something innovative as reuse of plastic waste for the production of floor tiles. The present investigation at manufacturing Floor tiles using waste plastic in different properties with Fly ash, without use of cement and comparing it with the normal cement tiles. To evaluate different physical and mechanical properties, tests like water absorption test, transverse resistance, resistance of impact and abrasion resistance tests were carried out as per IS specifications on the plastic tile and these test results were compared with normal cement tiles. The results obtained have shown better result compared to normal tile. As per this study it can considered to use plastic waste as a binding material instead of cement in manufacture of floor tiles. However, we generally use two to three types of polymers to make tiles,” Paras explains. High-density polyethene (HDPE), Polypropylene (PP), and sometimes Low-density Polyethylene (LDPE). “We mix 15 per cent of fillers while recycling the plastics, to make it more tensile and durable.
The Impact of Human Resource Information System on Human Resource Management: A Case Study of Bank of Baroda Dharwad City
Authors: Budihal Mr. Vijay N
Published: July 2021

Human Resource system isn't a brand-new thought currently. it's gained large quality among companies round the world. It plays a significant role in Human Resource management with in a bank. Human Resource management with plays a big role in managing the manpower of any banks. Ineffective Human Resource management with might cause insignificant variety of workers. Thus, HR planning permits cheap management with of human resource in a bank. the key aim of this paper is to focus the impact of Human Resource information system on Human Resource management activities. The results of paper recommend that Human resource Information system play a really important role in effectiveness of HR managementfunctions in abank.
Design and Simulation of a 2KVA Inverter with an Overload Protector
Authors: Sadiq Muhammad
Published: July 2021

In this research, the design and simulation of 2000VA inverter is presented. The method implemented for the design was the d.c. – a.c. inverter topologies. The d.c. – a.c. inverter circuit made use of a 555 timer, to digitally pulse the transistors on the inverter side, and the oscillating circuit, to drive the inverter. The system consists of the main inverter stage and the charging unit. These units are further subdivided into different stages. The main inverter performs the basic operation of converting the input d.c. voltage from the battery into an a.c voltage. The charging unit contains an automatic switch that charges the battery when it senses no supply from the mains. Each unit of the project was simulated individually at every different stage of the design by using a simulating software (every circuit). The waveform given at the final stage of the simulation shows that it is a modified sine wave inverter, and it successfully converts a 12V d.c. into a 220V a.c. with a load capacity of 2000VA. The inverter should be able to power the electronic device connected for a reasonable amount of hours
Analysis of RC Framed Post Tensioned Slab Structure to Evaluate the Performance of Floating Column with and without Shear Wall using ETABS
Authors: Raj Ranjana
Published: July 2021

This research aims to develop analytical study of post tensioned slab with floating column. In present scenario buildings with floating columns are of typical feature within the fashionable multi storey construction practices in urban India. Such sorts of constructions are highly undesirable in building inbuilt seismically active areas. For this buildings are given floating columns at one or more storey. These floating columns are highly disadvantageous during a building inbuilt seismically active area. The earthquake forces that are developed at different floor levels during a building got to be carried down along the peak to the bottom by the shortest path. Deviation or discontinuity during this load transfer path leads to poor performance of the building. In this paper, analytical study of post tensioned slab to evaluate the performance of floating column at ground level or at alternative story for G + 10 story building without shear wall, shear wall at corner, shear wall at center, shear wall at external middle and combined shear wall are provided for regular building is taken for study. The response of building like storey drift, storey displacement and storey shear has been wont to evaluate the results obtained using ETABS software.
Neuronal Activity and its Impact on Neuronal Growth
Authors:   Department of Electronics and Communication Engineering Tezpur University, Napaam, Tezpur, Assam (India), Das Biswajit , Malla Bujar Baruah Satyabrat , Roy Soumik , Hazarika Uddipan
Published: July 2021

Myelination is one of the most important aspect of membrane remodeling, hence it is very much essential to understand the factors that can aid in remyelination once the myelin layer gets reduced or is lost due to several physiological factors. Studies have shown that the activities taking place within the nervous system itself can aid in remyelination. The current study is based on understanding the role action potential play in aiding in remyelination of the nerve fiber which would not only help in regaining the strength of the signal and also for the faster propagation of the impulse thus addressing several neurological issues arising due to myelin degradation. The idea is to develop an appropriate mathematical model to study the effects of the action potential in remyelination which will be computationally viable and to understand its role in neuronal growth. The findings of this study suggest that variation in the rate at which the membrane potential changes can have a significant impact on neuronal growth and therefore the issues arising out of myelin degradation such as multiple scheloris could be addressed.
Enumeration of Plant Species Inhabiting Oil Palm Trees (Elaeis-guineensis) at Zawlpui Plantation Site, Serchhip District, Mizoram
Authors:   Department of Botany, Mizoram University, Tanhril, India., awmpuia Lal , Lalruatsanga H. ,   Department of Botany, Pachhunga University College, Aizawl, India
Published: July 2021

A survey of plant species inhabiting oil palm trees was conducted in Zawlpui area of Serchhip district, Mizoram. The study area is a tropical potent agriculture zone, wherein small-scale business of Elaeis guineensis plantation is carried out by several farmers mainly within the gentle sloppy terrain. Oil palm with a rough bark harbors immense inhabitation by a variety plants, that rooted mostly on the debris at leaf base. Species diversity on the plant stem supposedly encourage insects and termites to establish herewith, thus causing harming to the tree. The sample stands within 400 m–800 m altitude were picked randomly. A total of 50 palm tree were accounted and all associated plants on the stem above 30 cm from the ground are all recorded. Species that cannot be identified on the site were pressed and observed at Botany Research lab, Pachhunga University College. The survey documented 38 vascular plant species which include 4 epiphytes and 1 non-vascular species of lichen, 1 bryophyte and 4 fungal species at that time. Invasive Peperomia pellucida and epiphytic pteridophytes Nephrolepis biserrata was found in most of the stand sample; however, Peperomia population decreases with the increasing elevation. Dynamics of inhabitant species diversity also correlate to location of tree. The study also established that diversity of inhabiting species was comparatively high on parts of the stem facing sunlight.
Evaluation of Wood Quality of Underutilized Indigenous Timber Species for Reducing Timber Scarcity: A Case of Mizoram, North-East India
Authors:   Department of Forestry, Mizoram University, Hegde Nagaraj , Kumar Suresh , Khing Kenyusinlo , B Gopichand
Published: July 2021

Timber demand and supply gap has widened over the last few decades across different regions of the world. Indian scenario is no different. In the last decade though India’s forest cover has increased at a very slow pace, in north eastern part of India, there is a loss of forest cover at an alarming rate. This is a cause of concern for this region which is already depending only on handful of quality timbers for the structural and commercial purposes. Under this scenario, few alternative options should be looked at like exploring promising indigenous fast-growing species, or exploring some lesser-known timber species available naturally in the forest. Therefore, wood quality parameters of such timber species should be tested so as to know the specific utility of these timbers. In this study of Mizoram, wood quality parameters of five underutilized timber species were assessed and three out of five species have shown considerable quality as compared to Teak and many other mainstream species. Few selected properties are highlighted in this paper to indicate possible utility of selected species to reduce the gap in demand and supply of wood as raw material. We focused mainly on anatomical properties, gross features and cell constituents of these species in this paper. The properties observed for lesser-known species are compared with twenty Indian mainstream timbers. The results have indicated that there is a need for further expanding the scope for exploring more such species so that timber requirement of the region is meted out.
Analysis of RF Radiation and its Health Effects in Lunglei District of Mizoram
Authors:   Department of Physics,Mizoram University, Aizawl, India, lawmzuala Lal , Pachuau Zaithanzauva ,   Department of Physics,Mizoram University, Aizawl, India, Pachuau Lalrinthara ,   Department of Physics, Pachhunga University College, Aizawl,India
Published: July 2021

In this paper we present the study of how Radio Frequency (RF) Radiations emitted by mobile base stations effects human health on thirteen different non-specific health symptoms residing in the vicinity of base stations. The survey was conducted on people living within and beyond 50m from mobile base station in Lunglei district, Mizoram for the first time since mobile tower was erected in 2008. Power density from mobile towers have also been measured within and outside 50m from the station for GSM900 and GSM1800 in the same locality. The measured average power densities have been compared with standard limits given by various scientific bodies like International Commission on Non-Ionizing Radiation Protection (ICNIRP,1998), Bioinitiative Report (2012), Salzburg Resolution (2000) and current Indian National Standards. It has been found that the measured power density were well below the recommended limit given by ICNIRP,1998 and the Indian standard (2013) in all the selected sites of study, whereas in four localities the average power density was found to be higher than the recommended limits of Bioinitiative Report,2012 and Salzburg Resolution. Questionnaire survey was also conducted on different health symptoms faced by the inhabitants close to the base stations. The results were statistically analysed based on exposure and sex. From the correlation studies, it has been found that more is the power density more is the number of significant health complaints and, also females were found to be more effected than males.
Desarrollo de Mashup de Noticias: El caso de la Universidad Nacional de la Patagonia Austral
Authors: Agüero Emiliano Agustín , Gola Vanina Luciana , Vidal Graciela , Casas Sandra
Published: July 2021

El desarrollo de aplicaciones web Mashup ha adquirido relevancia en los últimos siete años. Entre las herramientas y tecnologías disponibles para estas aplicaciones híbridas se destacan los componentes feed (ATOM y RSS), que permiten obtener datos de diferentes fuentes y formatos (XML y JSON). El objetivo del presente trabajo fue estudiar y aplicar técnicas y estrategias para la extracción, composición e integración de contenidos provenientes de diversos feed relacionados a periódicos digitales. Para lograr este objetivo procedimos a: (i) estudiar y seleccionar herramientas y componentes para el desarrollo de mashup de noticias; (ii) definir, analizar y seleccionar esquemas de diseño de visualización/interfaz de mashup; y (iii) prototipar y evaluar la implementación de mashup de noticias. A partir de los resultados se desarrolló un portal de noticias en el cual se pueden visualizar las novedades de la Universidad Nacional de la Patagonia Austral, publicados por periódicos digitales locales. Además, se elaboró una guía de recomendaciones para la creación de este tipo de mashup.
STUDI KRITIK MELALUI METODE TAKHRIJ HADITS TENTANG MENGHIAS BANGUNAN MASJID SEBAGAI TANDA AKHIR ZAMAN
Authors: Abdillah Junaidi
Published: July 2021

This paper aims to explore and reveal the law (istimbāth al-ahkām) about the law of boast and decorate the building of the mosque. The theme in this paper becomes an important and interesting issue when faced with contemporary phenomenon in Indonesia in particular and massively world, many people who build and decorate the mosque. Though normatively, this practice allegedly the Prophet as a sign of the end of time. This paper is written using syarah and naqd through out methods takhrij al-hadits approach. While in the realm of legal extraction, the approach used is a hermeneutical approach based on qawa’id al-lughawiyyah and maqashid al-syari’ah on texts of hadith. This study produces several conclusions: (1) hadith about proudly with mosque belonging to Āhād hadith category which is zhanni al-wurud (2) The law of building and decorating the mosque is makruh li-tahrim notes not accompanied by efforts to revive and prosper the mosque (3) This hadith include a hunching hadith containing a profound message of will as a stimulus of the Prophet SAW to his people aware of the existence, purpose, orientation of building the mosque itself and the existence of accountability in the hereafter.Key words: Mosque, splendor, doomsday, decorate, law
RELIGIUSITAS MEDIA MASSA DALAM PERSPEKTIF TEOANTROPOSENTRIS ISLAM
Authors: Mujiati Nanik , Yunus Moh.
Published: July 2021

This article examines about Islamic Theoantropocentric, a new paradigm of integration between the source of knowledge from Allah in the form of the Qur’an and human science. Islamic theoantroposentric phenomena that exist in the mass media space or called mass media religiosity. This form of religiosity is in the form of morals which is sourced from the revelation of Allah contained in the Qur’an and hadith. While the mass media itself is in the form of human knowledge such as print media, electronics and new media. The existence of integration between mass media and religion is complementary and become a unified whole. The use of mass media must be accompanied by the morals or ethics of the mass media. Mass media as public media must present religious content or that does not deviate from the teachings of Islam to meet the needs of the audience, especially Muslims themselves. So that the mass media with morals can create good communication and bring benefit to mankind, even the mass media can be a means of minimizing conflict.Keywords: Theoantropocentric, Islamic, and Mass Media.
MAKNA LOGIKA NUBUWWAH DALAM DAKWAH KH. AHMAD BAHAUDDIN NURSALIM: ANALISIS TRILOGIEPISTEMOLOGI ARAB-ISLAM DAN ANALISIS RESEPSI ENCODING/DECODING
Authors: Himam Aliyul
Published: July 2021

Abstract: This article examines the meaning of the Logic of Nubuwwah by KH. Ahmad Bahauddin Nursalim and his dakwah broadcast. The results of this study indicate that: 1) The logic of nubuwwah is a rational and humane way of thinking based on wisdom so that it can glorify oneself in the presence of Allah Swt. As for understanding it can be through an approach based on texts: Al-Qur’an, Hadith and religious books (bayani epistemology), a coherent and reasonable logic, even if it comes from the words of an a'rabi, (burhani epistemology) and direct experience of the spiritual reality of religion (irfani epistemology). 2) KH. Ahmad Bahauddin Nursalim uses a pattern a) an explanation based on a typical Islamic boarding school knowledge framework b) the arrangement of material that is discusive with the students and society b) an open dialogical explanation and communicative based on the religious book which contains the Koran, Hadith and the thought of the ulama c) contains a contextual interpretation that can relate to the students and society d) contains cultural values that apply in society such as manners, morals, ethics, local wisdom and so on.Keywords: Logic of Nubuwwah; Dakwah; KH. Ahmad Bahauddin Nursalim.Abstrak: Tulisan ini mengkaji tentang makna Logika Nubuwwah dalam dakwah dakwah KH. Ahmad Bahauddin Nursalim dan proses penyiaran dakwah KH. Ahmad Bahauddin Nursalim. Hasil penelitian ini menunjukkan bahwa: 1) Logika nubuwwah adalah cara berpikir yang masuk akal dan manusiawi yang serat akan keluhuran dan ketinggian derajat manusia sehingga dapat memuliakan dirinya di hadapan Allah Swt. Adapun dalam memahaminya dapat melalui pendekatan yang didasarkan pada nash: Al-Qur’an, Hadits dan kitab-kitab klasik (epistemologi bayani), logika yang runtut dan masuk akal, sekalipun itu berasal dari omongan seorang a’rabi/awam (epistemologi burhani) dan pengalaman langsung atas realitas spiritual keagamaan, tidak terbatas hanya untuk hal-hal yang melangit saja namun juga termasuk amaliah sehari-hari (epistemologi irfani). 2) Proses penyiaran dakwah KH. Ahmad Bahauddin Nursalim menggunakan pola a) penjelasan yang berdasarkan kerangka pengetahuan khas pondok pesantren b) penyusunan materi yang bersifat diskusi dengan para santri b) penjelasan yang dialogis yang bersifat terbuka dan komunikatif berdasarkan kitab kuning yang di dalamnya terkandung Al-Qur’an, Hadits dan pemikiran ulama c) mengandung tafsir dan interpretasi yang kontekstual sehingga bisa relate dengan kehidupan para santri dan masyarakat d) memuat nilai-nilai budaya yang berlaku di masyarakat seperti tata krama, akhlak, etika, moral, adab, sopan santun, susila, kearifan lokal dan lain sebagainya.Kata Kunci: Logika Nubuwwah; Dakwah; KH. Ahmad Bahauddin Nursalim.
Estilos de aprendizaje de los estudiantes del segundo semestre de Licenciatura en matemáticas
Authors: Jaramillo-Benitez Janz , Rincon-Leal Jaime
Published: July 2021

La presente investigación tuvo como objetivo identificar los estilos de aprendizaje de los estudiantes de segundo semestre de Licenciatura en Matemáticas de la Universidad Francisco de Paula Santander. El estudio es cuantitativo con un diseño cuasi experimental transeccional de tipo descriptivo con una muestra de 30 estudiantes; se utilizó el cuestionario de Hábitos y Estilos de Aprendizaje (CHAEA) de Honey -Alonso. Se evidenció que el 46.67% de los estudiantes tiene predominancia en el estilo de aprendizaje reflexivo mientras que tan solo el 10 % son estilo Pragmáticos, de la misma manera se utilizó el software estadístico SPSS Versión 23 para el análisis de la información.
Una aproximación a la Conjetura de Goldbach
Authors: Parada-Buitrago Ingrid Yurley , Pérez-Remolina Leismel Hernando , Carillo-García José María
Published: July 2021

Uno de los problemas de matemáticas que parece muy cierto, pero carece de una demostración es la conjetura de Goldbach planteada desde 1742.El presente artículo realiza un análisis crítico, donde se recopiló diversas propuestas de solución de ésta, con un leguaje y una nomenclatura unificada para qué sea asequible al estudioso de la matemática. Es una investigación histórica y exploratoria de tipo cualitativa que concluye con una visión holística, que permita identificar los intentos de demostración más relevantes de la Conjetura de Goldbach, de esta manera se pretende estimular al estudiante a desarrollar su capacidad investigativa hacia las Matemáticas, evidenciando: los posibles métodos de investigación en el área, la aparición de teorías y los nuevos desafíos para los matemáticos.  Aquí se presentaron intentos de demostración a partir de la teoría de números primos, en la búsqueda de fórmulas que describan todos los primos, intento que nunca se ha logrado concretar. Demostraciones que echan mano de la probabilidad con que aparecen los números primos, que nuevamente son esquivos a dejarse encasillar. Se echó mano a la lógica en otra de los intentos aquí presentados, nuevamente sin el éxito esperado. Divide y vencerás tal vez pensó   Ricardo G. Barca en el intento que aquí se presenta, pero se le escapó alguna parte. Siguiendo la idea de Polya, se trata de solucionar siguiendo el camino que ha dado solución a otros problemas mediante   un acercamiento heurístico, pero sin lograrlo.
¿Se relacionan las creencias sobre las matemáticas con el rendimiento académico en matemáticas en estudiantes de contexto vulnerables?
Authors: Fernandez-Cezar Raquel , Adriano-Rincón Gersón , Prada-Núñez Raúl
Published: July 2021

El presente artículo es un avance de un estudio realizado para averiguar la relación existente entre el dominio afectivo en matemáticas (creencias, actitudes y emociones) y el rendimiento académico en esta área en estudiantes de contextos vulnerables. El objetivo es analizar las creencias de los estudiantes sobre las matemáticas y su posible relación con su rendimiento académico. La metodología empleada es de carácter cuantitativo, descriptivo y correlacional, con un diseño de tipo no experimental, transversal correlacional-causal, ya que busca explicar la relación entre las variables. La muestra estaba constituida por 121 estudiantes de 3er grado de educación básica primaria, perteneciente a una institución educativa pública de Cúcuta, Norte de Santander, Colombia, seleccionados mediante muestreo no probabilístico. El instrumento empleado para la recolección de datos fue un cuestionario estructurado con respuestas del tipo Escala de Likert, del cual se estudió su validez y confiabilidad. Para el rendimiento académico se utilizó el instrumento de caracterización de las habilidades y procedimientos que utilizan los estudiantes de 3er grado en el área de matemáticas, diseñado por el programa Todos a Aprender (PTA) del Ministerio de Educación Nacional (MEN). Los resultados evidencian que las creencias sobre las matemáticas, desde la perspectiva de los estudiantes, son un factor determinante del rendimiento académico en matemáticas de este tipo de alumnado.
Aplicación de estrategias didácticas para el desarrollo del pensamiento numérico en los estudiantes de octavo de la institución educativa nuestra señora de las mercedes en el municipio de Sardinata
Authors: Escalante-Albarracín Maribel
Published: July 2021

La presente investigación tuvo como objetivo general diseñar herramientas didácticas para el desarrollo del pensamiento numérico en los estudiantes del grado octavo de la Institución Educativa Nuestra Señora de las Mercedes, Municipio de Sardinata. De acuerdo con los objetivos del estudio la metodología presenció un proyecto factible, ubicado en un nivel descriptivo, apoyado en una investigación de campo. La población escogida fue el grado Octavo de la Institución Educativa Nuestra Señora de las Mercedes, municipio de Sardinata los cuales constituyen un número de 125 estudiantes. Por otra parte la confiabilidad de los instrumentos de medición se determinó mediante el método estadístico Alpha de Cronbach y los datos se representaron y analizaron bajo la construcción de tablas de frecuencia y gráficos porcentuales, arrojó que los estudiantes poseen escaso dominio del pensamiento numérico porque no se encuentran motivados hacia el desarrollo del mismo, por otra parte los docentes deben implementar estrategias para que los educandos muestren interés por su aprendizaje de allí la necesidad de generar como estrategia didáctica el uso del juego que sirva como estrategia didáctica para el desarrollo del pensamiento numérico.
Una caracterización del pensamiento variacional desde la resolución de problemas de ecuaciones lineales diofánticas y la teoría fundamentada
Authors: Mariño Luis Fernando , Falk-de Losada Mary , Hernández Rosa Virginia
Published: July 2021

El pensamiento variacional ha sido caracterizado desde diferentes contextos y perspectivas, generalmente estos trabajos, han sido realizados desde la solución de problemas que involucran el concepto de función en dominios continuos. La investigación estuvo centrada en dar respuesta a la pregunta de investigación, ¿cómo es la naturaleza del pensamiento variacional manifestado por profesores de matemáticas en formación, cuando solucionan problemas de ecuaciones lineales diofánticas? El trabajo se orientó por un enfoque cualitativo con un diseño estratégico desde la teoría fundamentada. Como fuentes de datos, se diseñaron e implementaron 6 secuencias de aprendizaje a un grupo de 24 estudiantes que tomaron un curso de Teoría de Números y se forman para profesores de matemáticas. Entre los hallazgos se destaca, el cómo a partir de situaciones particulares, los estudiantes hacen conjeturas, descubren relaciones y patrones que los conduce a realizar acciones para representar, organizar y reorganizar su conocimiento. Los procesos simultáneos de recolección, codificación y análisis de datos y el método de comparación constante, condujeron a la saturación teórica, posibilitando construir el núcleo de la teoría, como un proceso entre las operaciones variacionales de particularizar, conjeturar, relacionar, generalizar y probar, junto a una serie de acciones manifestadas por los participantes, cuando su pensamiento variacional opera sobre problemas que involucran ecuaciones lineales diofánticas de la forma
Métodos de compresión sin pérdidas de imágenes de resonancia magnética utilizando transformada wavelet: revisión sistemática
Authors: Ferreira-Mejía Paula Andrea , Pérez-Cubillos Wilson Nicolás Andrés , Aparicio-Pico Lilia Edith
Published: July 2021

En medicina la información de las imágenes diagnósticas es vital e imprescindible, por este motivo es necesario procesarlas sin que existan márgenes de error que interfieran con su lectura y análisis. En términos generales: las imágenes presentan redundancia entre píxeles lo cual hace que ocupen un tamaño considerable que va desde los Megabytes (MB) hasta los Gigabytes (GB); el proceso de transmitirlas a través de la red se dificulta en términos de almacenamiento y coste computacional, por ende se deben aplicar procesos de compresión sin pérdidas útiles para reducir el ancho de banda, mejorar la capacidad de almacenamiento e incrementar la velocidad de transmisión sin afectar la calidad de la imagen diagnóstica.

La propuesta de este artículo se basa en una revisión sistemática en la que se sintetiza y expone las características, ventajas y desventajas, de las técnicas de extracción de las regiones de interés (ROI), los algoritmos híbridos de compresión sin pérdidas de imágenes de MRI (Magnetic Resonance Imaging) y, por último, se toma como referencia la transformada Wavelet y las aplicaciones propuestas, a futuro, por los investigadores de los artículos revisados; entre las técnicas utilizadas destacan: EWT (Empirical Wavelet Transform), EZW (Embedded Zero Trees of Wavelet), SPIHT (Set partitioning in Hierarchical Trees) y el algoritmo híbrido-derivado como lo es: EWISTARS (Exponential Wavelet Iterative Shrinkage-Thresholding Algorithm with Random Shift) finalmente la selección y extracción automática de una ROI se realiza, mediante operaciones morfológicas, como la operación de apertura y segmentación de nivel. Para evaluar la calidad de estas técnicas se describen las métricas de rendimiento MSE (Mean Square Error), PSNR (Peak Signal to Noise Ratio) y CR (Compression Ratio). Los resultados de esta investigación serán de utilidad para que los investigadores, que estén incursionando en el área, puedan ampliar su visión acerca del procesamiento de imágenes médicas.
Caso de estudio sobre el manejo integral de residuos sólidos en un conjunto residencial de Santiago de Cali
Authors: Calderón Vallejo Luisa Fernanda , Espitia Arias Jenny Fernanda , Espitia Arias Martha
Published: July 2021

Contextualización: El manejo inadecuado de residuos sólidos contribuye a la contaminación del medio ambiente, el deterioro del paisaje natural y pone en riesgo la salud pública por la proliferación de vectores y roedores.

Vacío de conocimiento: Se pretendió en este estudio reconocer el manejo de los residuos sólidos en el conjunto residencial Los Fundadores de la ciudad de Cali, el cual, aunque hace varios años tiene un Comité de Manejo Integral de Residuos Sólidos, en la actualidad no cuenta con un Sistema de Gestión Integral de Residuos Sólidos.

Propósito: El estudio se enfoca en la necesidad de realizar el diagnóstico del manejo integral de residuos sólidos en el conjunto residencial, con el fin de generar lineamientos que permitan cumplir con la normatividad ambiental a la cual están obligados y contribuir al manejo adecuado de los residuos sólidos, aportando a las metas del municipio y avanzando gradualmente hacia una economía circular.

Metodología:  Para el desarrollo del estudio, primero se llevó a cabo el diagnóstico de la situación actual del manejo de los residuos sólidos del conjunto residencial, luego se aplicó una encuesta, posteriormente se hizo la caracterización y aforo de los residuos sólidos generados en un periodo de 8 días y finalmente se realizaron algunas actividades de capacitación con los residentes y usuarios del conjunto.

Resultados y conclusiones: Se encontró que el mobiliario usado para el manejo de residuos sólidos presenta falencias que dificultan la correcta gestión de los residuos sólidos, de acuerdo con lo establecido en el Decreto 1077 de 2015. Con la aplicación de la encuesta se observó que hacen falta jornadas de capacitación con los generadores de residuos sólidos. Con los resultados de la caracterización y aforo se pudo determinar que en los 8 días se generó un 60,5% de residuos sólidos no aprovechables y un 39,5% de aprovechables. Con las actividades de capacitación se logró promover la separación en la fuente y finalmente, se establecieron recomendaciones que permitirán reducir los impactos ambientales, sociales y solucionar en el mediano y largo plazo los problemas encontrados. En conclusión, esta investigación permitió identificar situaciones que generan diversas problemáticas en el conjunto residencial, y a su vez, establecer propuestas encaminadas a la recuperación y aprovechamiento de los residuos sólidos generados.
Case Report: The Physiology of a Preventable Near Death in a Hot Tub
Authors: Becker Bruce
Published: July 2021

This is a case report of a very preventable near-death event involving a
6-year-old female who had a syncopal event due to hyperthermia in an
overheated hot tub and drowned. She was resuscitated but due to the
combination of anoxia and hyperthermia has been left with permanent
brain damage.
Egg quality of Banat naked neck hens during storage
Authors: Skrbic Zdenka , Lukic Milos , Petricevic Veselin , Bogosavljevic-Boskovic Snezana , Rakonjac Simeon , Doskovic Vladimir , Tolimir Natasa
Published: July 2021

In less intensive production systems, native poultry breeds can be used in
order to diversify the products and achieve self-sustainability of these
breeds through production. Given the missing data on the sustainability of
quality of eggs obtained from indigenous, native hens, during storage, the
aim of the study was to determine the most important parameters of egg
quality of indigenous breed of Banat Naked Neck hens during a four-week
period in different storage conditions. The design of the experiment was
two-factorial with 4 levels of storage time factors (fresh eggs - 0, 1, 2, 3
and 4 weeks of storage) and 2 levels of temperature storage condition
factors (room temperature and refrigerator). The room temperature was on
average 21.3?C and the refrigerator temperature 8?C. Quality analysis was
performed on a total of 200 eggs, and it included following parameters: egg
weight, egg weight loss, weight and proportion of structural components:
shell, yolk and albumen, albumen height, yolk colour, Haugh Units and
albumen pH. The storage time had a significant effect on all properties of
egg quality, except for the yolk colour, which was under the impact of the
interaction of storage time and temperature. Storage temperature influenced
egg weight loss (<0.001), shell weight (<0.05), albumen height (<0.0001),
Haugh Units (<0.0001) and albumen pH (<0.0001). By storing in the
refrigerator, changes in internal quality were significantly slowed down.
After 28 days of storage in the refrigerator, the values of albumen and
Haugh Units were higher than the same parameters of eggs stored for only 7
days at room temperature.
Influence of floor egg shell cleanliness and cleaning treatment on hatchability and chick quality
Authors: Vekic Marinko , Gvozdenovic Marko , Peric Lidija , Savic Djordje , Jotanovic Stoja , Mitrakovic Mirjana
Published: July 2021

A total of 3,600 floor eggs from a 59-week-old Cobb 500 parent flock were
collected to examine the effects of shell cleanliness and cleaning treatment
on incubation results. The eggs were divided into two equal groups according
to the cleanliness of the shell: eggs with a visually clean shell (clean
eggs) and eggs with a dirty shell (dirty eggs). Depending on the cleaning
treatment, clean and dirty eggs were divided into three equal groups: eggs
that were not cleaned at all (intact), eggs that were cleaned with metal
wire (scraped eggs) and eggs that were washed (washed eggs). Cleaning
treatment significantly affected egg weight loss (p = 0.057). The
hatchability of set eggs was under significant influence of egg cleanliness
(p = 0.018), while the hatchability of fertile eggs was under significant
influence of egg cleanliness (p = 0.003) and cleaning treatment (p = 0.029).
Significant influence of shell cleanliness (p = 0.000) and cleaning
treatment (p = 0.000) on egg contamination was also observed. Early, middle
and total embryonic mortality were not significantly influenced by shell
cleanliness and cleaning treatment, in contrast to late mortality which was
under significant influence of egg cleanliness (p = 0.028). The number of
first grade chicks per incubator tray was significantly influenced by egg
cleanliness (p = 0.018). Chick weight and length were not significantly
affected by shell cleanliness and cleaning treatment. The study showed that
washed eggs had a higher weight loss compared to intact and scraped eggs.
Dirty eggs had a lower hatchability, a higher percentage of contamination
and late mortality as well as a lower number of first grade chicks per
incubation tray, compared to clean eggs. Cleaning treatments did not have a
significantly positive effect on the incubation results of either clean or
dirty eggs. Washing treatment had a particularly negative effect on dirty
eggs as they had reduced hatchability and increased contamination. The
absence of a positive effect of scraping and washing treatment on the
incubation results makes justification of these cleaning treatments for
floor eggs doubtful.
Welfare parameters and keel bone damage in laying hens reared in different production systems
Authors: Spiridonovic Sava , Djukic-Stojcic Mirjana , Peric Lidija , Pajic Marko , Knezevic Slobodan
Published: July 2021

The aim of this study was to determine the effect of housing system and the
age of hens on welfare parameters and the prevalence of keel bone damage in
laying hens. In this study two housing systems were evaluated: aviary system
and enriched cages. From each system and age, we used 50 randomly selected
hens from different cages and tiers. The results showed significant
differences between systems in the type of keel bone damage. There was no
significant difference in keel deviation between systems, but the higher
prevalence of keel fractures was found in aviary system. In addition,
significant effect of the age of hens was found on the occurrence of keel
fractures. Footpad dermatitis had statistically higher occurrence in
enriched cages at 62 weeks of age. Hens from aviary system had significantly
better plumage score compared to hens from enriched cages but only at 42
weeks of age.