bluuebunny/crossref_metadata_2025 huggingface dataset:
A Hybrid topology for PV Forecasting and its application in Energy Management for Microgrid
Authors: Gupta Ankur Kumar , Singh Rishi Kumar
Published: August 2022

Photovoltaic (PV) system is the most promising Renewable technology. PV Forecasting is needed due to the natural variation of meteorological variables such as solar radiations and climatic conditions. Due to this the power produced by a PV system is always non-linear. A hybrid forecasting approach has been presented in this paper. This hybrid approach is a combination of statistical approach, machine learning approach as well as physical approach. The machine learning approach uses a single layer and double layer perception concept based on Artificial Neural Network (ANN) whereas the statistical and physical approach used data driven formulation concept for forecasting. This data are based on historical analysis as well as they are also helpful in future forecasting. An implementation of a two-layer hierarchical model for Energy Management System (EMS) of islanded solar Microgrid (MG) is presented. The MG control employing forecast module and simulation process has been discussed briefly. The whole forecasting has been done on the basis of real-time data (RTD) of an industry and has been simulated in HOMER student’s version software.
Intradural extramedullary tumor location in the axial view affects the alert timing of intraoperative neurophysiologic monitoring
Authors: Morito Shinji , Yamada Kei , Nakae Ichirou , Sato Kimiaki , Yokosuka Kimiaki , Yoshida Tatsuhiro , Shimazaki Takahiro , Hazemoto Yutaro , Saruwatari Rikiya , Nishida Kota , Okazaki Shingo , Hiraoka Koji
Published: August 2022

Objective
Intraoperative neurophysiologic monitoring (IONM) reportedly contributes to preventing postoperative neurological complications in high-risk spinal cord surgeries. There are both negative and positive reports about IONM for intradural extramedullary (IDEM) tumors. We investigated factors affecting alerts of IONM in IDEM tumor surgery.
Methods
We analyzed 39 patients with IDEM tumors who underwent surgery using IONM at our hospital between January 2014, and March 2021. Neurological symptoms were evaluated pre- and postoperatively using the manual muscle test (MMT). All patients were evaluated to ascertain the tumor level and location in the axial view, the operative time, intraoperative bleeding volume, and histological type. Additionally, the intraoperative procedure associated with significant IONM changes in transcranial electrical stimulation muscle evoked potential was investigated.
Results
There were 11 false-positive and 26 true-negative cases. There was one true-positive case and one false-negative case; the monitoring accuracy achieved a sensitivity of 50%, specificity of 70%, a positive predictive value of 8%, and a negative predictive value of 96%. In the analysis of 22 alert cases, if the tumor was located anterolateral in the axial view, alerts were triggered with a significant difference (p = 0.02) during tumor resection. Fifteen patients generated alerts during tumor resection; nine (60%) showed waveform improvement by intervention and were classified as rescue cases.
Conclusions
Alert is probably triggered during tumor resection for anterolaterally located tumors. In addition, alerts during tumor resection procedures tended to be more likely to be rescued than other procedures in IDEM tumor surgery.
Spirocamallanus delirae n. sp. (Nematoda, Camallanidae) parasite of Propimelodus eigenmanni (Siluriformes: Pimelodidae) from Brazilian Amazon Region
Authors: Ruffeil Luis Augusto Araújo dos Santos , Giese Elane Guerreiro , Pinheiro Raul Henrique da Silva
Published: August 2022

A new species of Camallanidae was found parasitizing Amazonian fish. The new species of Spirocamallanus Olsen 1952 has a mouth capsule armed with 15-19 spirals, a pre-equatorial vulva, and the presence of a digitiform projection with two small terminal cuticular spines on the tail of the female, while the tail of the male is conical, with the presence of a caudal wing and a tip with two small terminal cuticular spines. Morphologically, the new species shares features with S. pereirai, S. macaensis, S. cruzi and S. halithophus, which are parasites of marine fishes. However, it differs from the new species in spicule morphology, distribution and number of caudal papillae in males, and host environment (freshwater). The new species is added to the fish parasite biodiversity of the Brazilian Amazon.
Transboundary cooperation in infrastructure operation generates economic and environmental co-benefits to the Lancang-Mekong River Basin
Authors: Yu Yang , Bo Yan , Castelletti Andrea , Dumas Patrice , Gao Jinyu , Cai Ximing , Liu Junguo , Kahil Taher , Wada Yoshihide , Liu Bo , Zhou Feng , Zhao Jianshi
Published: August 2022

The Lancang-Mekong River basin (LMRB) is facing blooming water resources infrastructure development, long-term transboundary conflicts and trade-offs between economic goals and ecosystem services provision. Yet, most studies optimizing the pathway towards sustainable infrastructure operation have lacked multi-sectoral and cross-country perspectives. Here, we quantify how and to what extent transboundary cooperation generate economic and environmental co-benefits by jointly using a coupled simulation-optimization approach and cooperative game theoretical analysis. We find that cooperation outweighs non- or partial cooperation modes to promote economic benefits by 5 to 27%, and to minimize the losses in fishery and sediment transport from 14% and 33% to 8% and 10%, respectively. Full cooperation becomes more stable alongside infrastructure expansion, climate change, and the degree of satisfying hydrological needs for river ecosystems. These findings underscore the importance of full cooperation for sustaining socio-environmental systems and suggest the needs of benefit reallocation mechanism and designed flow management for stabilizing basin-level full cooperation in the LMRB.
Association between Pneumothorax and Deaths among Damascus Hospital Patients
Authors: Baranbo Saleh , Baranbo Aya , Al-Bardan Hussam
Published: August 2022

Background Pneumothorax is a major source of morbidity and mortality in Syria, although there is little information on the etiology, clinical profile, therapy, and outcome of pneumothorax in recent years. Method The patients in this retrospective observational study with the diagnosis of pneumothorax were seen over the course of a year at Damascus hospital. From hospital records, demographic, clinical, radiological, and therapeutic information were gathered and analysed. Results Out of 112 patients, 90.2% were male and 9.8% were females, with the majority, 23.2%, falling between the ages of 20 and 30. 65.2% of the patients were smokers. Patients had spontaneous pneumothorax 58%, secondary pneumothorax 23.2%, tension pneumothorax 7.1%, traumatic pneumothorax 6.3%, and recurrent pneumothorax 5.4%. The pneumothorax was in the right side in 29.5% of patients, in the left side in 25.9%, and bilaterally in 5.4%. Furthermore, 72.7% of patients with secondary pneumothorax died. Patients with bilateral pneumothorax were the most likely to die (66.7%). 93.9% of patients healed significantly after having a chest drainage placed on them. Conclusion Our findings indicate that pneumothorax is more common in men. Primary spontaneous pneumothorax is more common than secondary pneumothorax, and pneumonia and COPD were the most common causes of secondary pneumothorax, followed by Muti organ failure.
Combined effect of inhomogeneous strain-induced and anisotropy on friction in deep drawing of DC06EK sheet metal
Authors: BELGUEBLI Amina , ZIDANE Ibrahim , MENDAS Mohammed , MADAOUI Zakarya , BENHAMOU Abdessoufi
Published: August 2022

The aim of this work is to simultaneously evaluate the effects of inhomogeneous strain-induced and anisotropy on the friction during the deep drawing of DC06EK sheet metal. To do that, stretched and unstretched DC06EK strips in different rolling directions (0°, 45° and 90°) with different levels of equivalent plastic strain were used in microscratch tests under the same conditions as those used in deep drawing process (DDP) coming from a local industry. The findings show that the coefficient of friction (COF) decreases as a function of the equivalent plastic strain for different rolling directions. Two empirical friction laws are obtained depending on the equivalent plastic strain following 0° and 90° to the rolling direction. Since the COF have a clear trend of regression except in the case for 45°. Trend lines of the COF following 0° and 90° converge to very closely values, since the effect of anisotropy disappears with the increase in the level of plastic strain.
Outbreak News Affects the Attention in Everyday Life: A Cross-sectional Study
Authors: Kheirkhah Mohammad Taghi , Moazzen Hamze , Mirchi Zahra , Nezamolslami Atefeh , Kord Moslem , Mokarami Mehran , Gharibzadeh Shahriar , Saffarinia Majid
Published: August 2022

Objective: Capture of attention occurs when a goal-irrelevant salient stimulus appears in the field of attention. The COVID-19 pandemic seems to be salient enough to capture a great proportion of one’s attentional resources. The purpose of this study was to explore how the novelty of outbreak news affects attention in everyday life. Methods: 162 participants were recruited using an online invitation and divided into two samples (early and late sections). The variables—salience of news, intrusive thoughts, endogenous attention, and knowledge of COVID-19—have compared between two measurements using independent t-tests. Additionally, a correlational analysis was performed in order to reveal a model of relationships between variables. Results: It was found that despite the increase in infected cases, intrusive thoughts and attentional capture have decreased over time. To describe the relationship between salience of news and attentional capture a conceptual model is presented. Conclusion: In addition to the other physical properties of a stimulus, novelty also contributes to stimulus salience. In everyday life, novel situations can trigger intrusive thoughts and attentional capture. Nonetheless, it cannot be sustained after the novelty has worn off. The proposed model can be useful to understand further similar situations.
PERMODELAN POROSITAS TANAH BERBASIS FUZZY UNTUK PENDUKUNG SERIOUS GAME PENGOLAHAN TANAH
Authors: Gunawan Agung Hendra
Published: August 2022

Pada pembuatan serious game bertemakan bajak singkal banyak faktor pendukung untuk memenuhi tujuan sebagai sarana pelatihan. sehingga dapat menampilkan gambaran keadaan  senyata mungkin pada saat menjalankannya. Salah satunya porositas tanah, dalam jurnal ini mejelaskan perhitungan porositas tanah menggunakan fuzzy logic. Fuzzy logic sendiri  Metode ini dipilih karena sifatnya yang fleksibel, dan memiliki toleransi pada data yang ada. Kelebihan dari metode ini yaitu lebih cepat dalam melakukan komputasi, lebih intuitif, diterima oleh banyak pihak. Oleh karena itu, model tersebut dapat digunakan untuk merancang game serius yang nyata berdasarkan teori dan data
Formation and Distribution of Financial Resources of a Higher Educational Institution in the Russian Federation: Improving the Methodological Support
Authors: Kizil' Elena , Nagaev Georgiy , Usanov Il'ya
Published: August 2022

This article offers some recommendations on university budget planning based on an empirical study of cost distribution at various Russian universities. Russian universities appeared to allocate their budgetary funds by determining the average salary of the teaching staff. The authors developed some improvements for the existing academic staff payroll system to optimize the costs of the academic process. The teaching staff payroll should be based on the number of students and the share of the teaching staff payroll in the allocated state subsidy as part of the state assignment, which is non-regulatory today. The results obtained are of practical importance and can improve the financial and economic activities of universities, thus contributing to the transparency and efficiency of the financial resource distribution. Research prospects include further critical understanding of normative per capita financing principle as part of transition to university network cooperation.
Privatization and Concession as Promising Forms of Interaction between the State and Business: Foreign and Russian Experience
Authors: Medzhidov Zaur
Published: August 2022

The mechanism of public and private partnership has developed in Western countries as a result of socially significant investment projects. It represents a new, liberal stage of state regulation of the economy. This investment mechanism is also possible in Russia, especially in those areas where private investment provides a sustainable vector for the equilibrium growth of the economic system, leaving control functions to the state. Russian regions require various tools to assess their economic potential, socio-economic development, financial balance, and competitive conditions in the domestic and world markets. Such tools ensure an active federal policy and the economic integrity of the country. The authors explored foreign and domestic experience of privatization and concessions as promising forms of interaction between the state and the business. The research employed such standard methods as synthesis, comparison, statistical analysis, systemic and graphical analysis, etc. The article describes the system of public and private partnership in the sphere of social and industrial infrastructure facilities with their fundamental differences, contact points, advantages, and disadvantages. The review showed that concession is the most popular and attractive form of relationship between the state and business in modern conditions, both abroad and in Russia.
Promoting Universities on the International Market: Regional Aspects
Authors: Yudina Vera , Tanina Mariya , Bondarenko Vladimir
Published: August 2022

The article addresses the issue of increasing the international competitiveness of regional universities and identifies the main impact factors from the perspective of the current internationalization and digitalization of the global academic space. The new approach relies on both social and digital marketing tools to streamline the relationship between universities and target audiences, including foreign ones. The international competitiveness of regional universities depends on the following aspects: internationalization strategy, international academic ratings, innovative research centers and their role in the local academic process, joint curriculum programs, high-quality teaching material, technical, social and cultural infrastructure, etc. The paper contains some recommendations for university management and regional authorities on how to develop the promotion system of regional universities. The proposed measures include cooperation with foreign partners from the countries of greatest economic and geopolitical interest. Another tool is an advanced promotion system for regional education services in the context of regional brand promotion strategy, including digital marketing. The new model of university management can increase the efficiency of international activities of the regional socio-economic system.
Hydrogeochemical assessment of streamwater quality for its suitability for irrigation: the case of Manthong village, Kanglung (Bhutan)
Authors: Dendup Tshewang , Lekzin Pema , Lhendup Tshewang , Tobgay Sonam
Published: August 2022

Mountain streams/springs are the primary irrigation water resource in Bhutan Himalaya, besides supporting drinking and other domestic needs. Successful crop production implies an adequate supply of high-quality irrigation water, among other factors. Thus, this study was conducted to assess the suitability of spring-fed streamwater for irrigation use and evaluate hydrogeochemical processes that regulate streamwater chemistry at the Manthong village in Kanglung, Bhutan. The water samples were analyzed for temperature, pH, electrical conductivity (EC), turbidity, total dissolved solute (TDS) and major ions. Piper and Durov diagrams indicated that most samples are of the intermediate type and simple dissolution or linear mixing is the primary hydrochemical process regulating streamwater chemistry. All the measured physicochemical parameters were within the acceptable thresholds of the FAO guidelines recommended for agricultural use. Analytical results of the streamwater water quality indices, including EC, %Na, residual sodium bicarbonate (RSBC), sodium adsorption ratio (SAR), Kelley's ratio (KR) and permeability index (PI), revealed its suitability for irrigation use except for magnesium hazard (MH). The Irrigation Water Quality Index (IWQI) results confirmed that the WS-1 has no restriction as irrigation water; however, WS-2 falls under the high-restriction category. The findings of this study will serve as the baseline data and guide irrigation water management and sustainable irrigation development in the region.
PbO2 modified BDD electrode by dicationic ionic liquids assisted electrodeposition for efficient electrocatalytic degradation of pesticide wastewater
Authors: Tang Yining , Feng Shangce , He Deliang
Published: August 2022

Pesticide wastewater is difficult to treat, and it is necessary to develop a new anode material electrochemical oxidation to efficiently degrade pesticide wastewater. DIL-PbO2-Ti/BDD electrodes with better electrocatalytic oxidation performance were obtained by using dicationic ionic liquid (DIL) for assisted electrodeposition of PbO2 modified boron-doped diamond (BDD) electrodes. At a current density of 100 mA cm−2 and a temperature of 25 °C, the DIL-PbO2-Ti/BDD electrode was used as anode and titanium plate as cathode. The electrochemical window and oxygen evolution potential (OEP) of the DIL-PbO2-Ti/BDD electrode obtained by CV testing at a scan rate of 50 mV s−1 in 1 M H2SO4 were 4.12 and 3.29 V, respectively. Under the conditions of current density of 100 mA cm−2, 25 °C, pH 12, salt content of 8%, chemical oxygen demand (COD) of 24,280.98 mg L−1, and total nitrogen (TN) content of 5268 mg L−1, after electrification for 12 h, the removal efficiency of COD and TN reached 64.88 and 67.77%, respectively, indicating that the DIL-PbO2-Ti/BDD electrode has excellent electrocatalytic performance. In order to further understand the mechanism of electrochemical degradation of pesticide wastewater, HPLC-MS was used to detect the intermediates in the degradation process, and the possible degradation pathways were proposed in turn.
La identidad narrativa en Borges
Authors:   Universidad Pontificia Bolivariana, Medellín, Colombia, Cardona Natalia , Osorio Bayron ,   Universidad Pontificia Bolivariana, Medellín, Colombia
Published: August 2022

Este escrito tiene como fin reflexionar sobre la identificación que hace el hombre de su contingente condición humana en la narración, y sobre cómo se hace posible re-construir su ser, a partir del incesante descubrimiento de su identidad narrativa en las lecturas que hace, tanto para sí mismo como para la alteridad; a la luz de la condición poética borgiana.
How to physical fitness intellectual disability by nutritional status during the pandemic?
Authors: Burhaein Erick , Irfatoni Irfatoni , Rozak Romy Abdul , Kusmiati Lili , Setiabudi Agus , LourenÇo Carla Cristina Vieira , Basit Miftah Muhammad
Published: August 2022

The aim of the study was to look at students' physical fitness conditions based on nutritional status (BMI) during the COVID-19 pandemic. The participants of this study were 24 deaf students. This research instrument is a test of height and weight that has been standardized. Data analysis uses quantitative descriptive statistics. Divided into two, the first in male students (Pi) is the category as thin as 1 student (7.14%), ideal low as many as 4 students (28.57), ideal as many as 3 students (21.43%), ideal height as many as 5 students (35.71%), and very fat as many as 1 student (7.14%). Most of this Pa data is in the ideal category with M= 20.68.  Female Students (Pi) is a skinny category of 1 student (7.14%), ideal as many as 10 students (71.43%), fat as many as 2 students (14.29%), and obesity as many as 1 student (7.14%).   Most of this Pi data is in the ideal category with M= 22.46. The conclusion of this study is to provide recommendations on future studies that the need to include certain free variables to be known to be dominant variables in influencing nutritional status in children.
Migraine in Adolescents: Comparison of Attack Frequency During School and Vacation Periods
Authors:   Institute of Medical Psychology and Medical Sociology, University of Rostock, Rostock, Germany, Drescher Johannes ,   smartlytic GmbH, Hof, Germany, Gaul Charly ,   Headache Center Frankfurt, Frankfurt, Germany, Kropp Peter ,   Institute of Medical Psychology and Medical Sociology, University of Rostock, Rostock, Germany, Siebenhaar Yannic ,   Institute for Information Systems, University of Applied Sciences Hof, Hof, Germany, Reinel Dirk ,   smartlytic GmbH, Hof, Germany, Scheidt Jörg ,   Institute for Information Systems, University of Applied Sciences Hof, Hof, Germany
Published: August 2022

This citizen science project CLUE compared the attack frequency between school and vacation periods among adolescents. The data collection process adopted in citizen science projects opens up the possibility of conducting analyses by including a large number of participants over a long period and across different regions. The data on 684 migraine attacks reported by 68 adolescents aged 16 to 19 years were collected using an online platform and smartphone apps. A Fisher’s exact test was used to compare the distributions of the migraine attack frequency during vacation and school periods in two different scenarios. In both scenarios, the attack frequency during school periods was significantly higher than that during vacation periods. The use of web-based data collection has some methodological limitations; however, it enabled the measurement of relative migraine attack frequency in students during vacation and school periods. The higher prevalence of migraine during school periods indicates the requirement of increasing headache awareness among children.
Participation in Clinical Trials Among Academic Dermatologists Affiliated With Veterans Affairs Hospitals: Survey Study
Authors: Sivesind Torunn , D'Angelo Josephine , Khazova Tatyana , Hassan Shahzeb , Kamara Michael , Wallace Elizabeth , Dunnick Cory , Dellavalle Robert
Published: August 2022

Background

Clinical trials have led to the development of new and effective therapies for many dermatologic conditions. To our knowledge, there is no published study that has quantified and described the degree of involvement in clinical trials among academic dermatologists and their university affiliates.

Objective

The purpose of this study was to characterize the involvement of academic dermatology departments in clinical trials research.

Methods

An online survey was sent to 211 Veterans Affairs (VA)–employed dermatologists. It comprised 20 questions related to the number of clinical trials, support staff dedicated to clinical research, skin diseases studied, and the effect of the COVID-19 pandemic on conducting clinical research. Three rounds of survey invitations were sent over a 3-month period (March to May 2021). Data from all survey responses were reviewed for quantitative and descriptive analyses of the key outcome measures.

Results

A total of 48 dermatologists completed the survey and provided their university affiliations and details of involvement in clinical trials research. Over half of participants (n=25, 58.1%) with a university affiliate reported that their affiliated dermatology department had a dedicated clinical trials unit. Basal cell carcinoma was the most frequently studied skin condition (n=9, 18.8%), followed by atopic dermatitis and psoriasis (n=4, 8.3% each); 66.7% of participants reported no current clinical trials participation. Of those conducting clinical trials, 87% (n=18) noted that COVID-19 was a barrier to conducting trials, with 52.2% (n=11) citing disrupted or decreased trials due to the pandemic.

Conclusions

Although many dermatologists with university affiliations reported having a dedicated clinical trials unit at their institution, a majority of those surveyed reported not taking part in any active trials. Overall, the diseases investigated in academic clinical trials appear to follow national trends, though some of the top dermatological diseases are underrepresented in clinical trials research. A key limitation of our study was the low response rate (~23%) and that the survey responses from the sample of VA-based dermatologists may not be generalizable to all academic dermatology departments in the United States. The effect of the COVID-19 pandemic appeared to play a significant role in disrupting active trials.
Lessons and Reflections From an Extended Co-design Process Developing an mHealth App With and for Older Adults: Multiphase, Mixed Methods Study
Authors: Tong Catherine , Kernoghan Alison , Lemmon Kassandra , Fernandes Paige , Elliott Jacobi , Sacco Veronica , Bodemer Sheila , Stolee Paul
Published: August 2022

Background

There are many mobile health (mHealth) apps for older adult patients, but research has found that broadly speaking, mHealth still fails to meet the specific needs of older adult users. Others have highlighted the need to embed users in the mHealth design process in a fulsome and meaningful way. Co-design has been widely used in the development of mHealth apps and involves stakeholders in each phase of the design and development process. The involvement of older adults in the co-design processes is variable. To date, co-design approaches have tended toward embedding the stakeholders in early phases (eg, predesign and generative) but not throughout.

Objective

The aim of this study was to reflect on the processes and lessons learned from engaging in an extended co-design process to develop an mHealth app for older adults, with older users contributing at each phase. This study aimed to design an mHealth tool to assist older adults in coordinating their care with health care professionals and caregivers.

Methods

Our work to conceptualize, develop, and test the mHealth app consisted of 4 phases: phase 1, consulting stakeholders; phase 2, app development and co-designing with older adults; phase 3, field-testing with a smaller sample of older adult volunteer testers; and phase 4, reflecting, internally, on lessons learned from this process. In each phase, we drew on qualitative methods, including in-depth interviews and focus groups, all of which were analyzed in NVivo 11, using team-based thematic analysis.

Results

In phase 1, we identified key features that older adults and primary care providers wanted in an app, and each user group identified different priority features (older adults principally sought support to use the mHealth app, whereas primary care providers prioritized recoding illnesses, immunizations, and appointments). Phases 2 and 3 revealed significant mismatches between what the older adult users wanted and what our developers were able and willing to deliver. We were unable to craft the app that our consultations recommended, which the older adult field testers asked for. In phase 4, we reflected on our abilities to embed the voices and perspectives of older adults throughout the project when working with a developer not familiar with or committed to the core principles of co-design. We draw on this challenging experience to highlight several recommendations for those embarking on a co-design process that includes developers and IT vendors, researchers, and older adult users.

Conclusions

Although our final mHealth app did not reflect all the needs and wishes of our older adult testers, our consultation process identified key features and contextual information essential for those developing apps to support older adults in managing their health and health care.
Tratamiento ortodóncico-quirúrgico en una maloclusión clase III esquelética severa
Authors: Crespo Trujillo Andrea Zulema , Guzmán Valdivia Isaac
Published: August 2022

Paciente masculino de 25 años de edad se presenta a la División de Estudios de Postgrado e Investigación de la Facultad de Odontología de la UNAM y el motivo principal de consulta es que quiere cambiar su aspecto facial. Al examen clínico extraoral, en el análisis de los tercios, el tercio inferior se encuentra aumentado, en vista frontal muestra forma de cara ovalada, alargada, dolicofacial, los planos asimétricos y los quintos faciales desproporcionados. Sonrisa positiva no consonante, exposición dental del 100% de las coronas clínicas, línea media facial no corresponde con la línea media dental. La vista lateral y oblicua mostró un perfil cóncavo, hipoplasia del tercio medio de la cara, mayor proyección del mentón, ángulo nasolabial abierto y escalón labial negativo. Intraoralmente de frente se observó ligera desviación de las líneas medias, dientes inferiores lingualizados, mordida cruzada anterior y posterior unilateral derecha. Clase III molar y canina derecha e izquierda. Arcada superior de forma ovoidal, presentó apiñamiento y falta de espacio de menos 6 mm. Arcada inferior de forma ovoidal y ligeras rotaciones. Sobremordida horizontal de menos 6 mm y sobremordida vertical de menos 2 mm. El tratamiento ortodóncico se llevó a cabo en tres fases: prequirúrgica, quirúrgica, postquirúrgica. En la fase prequirúrgica se descompensó dentalmente al paciente y se preparó para la cirugía. En la fase quirúrgica se realizó una Le Fort alta de avance, osteotomía sagital bilateral y genioplastia de avance. En la fase postquirúrgica se lograron relaciones oclusales ideales, términos de clase canina y molar, resalte, sobremordida y las líneas medias dentales coincidentes, así como un perfil más armónico.
Tratamiento ortodóncico-quirúrgico en paciente clase III esquelética. Presentación de caso clínico
Authors: Bohórquez Jerez Yizzeth Nathalia , Mariscal García Karla Yeraldy , Ángeles Velázquez Antonio
Published: August 2022

Caso clínico de paciente femenino de 19 años de edad que acude a la Clínica de Ortodoncia del Centro de Alta Especialidad «Dr. Rafael Lucio» con motivo de consulta: «me muerdo la lengua, me sangra y me truena». En el análisis diagnóstico presenta clase III esquelética con laterognasia, clase III molar bilateral, clase III canina derecha y clase canina izquierda no valorable debido a la ausencia clínica del canino superior. El tratamiento se realizó en tres fases: fase prequirúrgica, fase quirúrgica y fase postquirúrgica. El tiempo de tratamiento fue de 30 meses. El resultado fue exitoso, obteniendo clases I caninas y molares bilaterales, sobremordida horizontal y vertical adecuadas, líneas medias coincidentes, correcta oclusión y perfi l facial armónico.
Efectividad de la férula en el control de la sintomatología dolorosa previo al tratamiento de ortodoncia en pacientes de 15 a 30 años
Authors: Mazón Moreta Paola , Lara Mendieta Pedro , Meléndez Ocamp Arcelia o
Published: August 2022

Objetivo: Determinar la prevalencia de dolor orofacial posterior a la utilización de la férula oclusal, en pacientes femeninos entre 15 y 35 años, que solicitaron atención en el Departamento de Ortodoncia del DEPeI UNAM. Material y métodos: El estudio se realizó en la Clínica de Ortodoncia de la DEPeI durante el periodo 2016-2017, en el cual participaron 15 pacientes mujeres entre 15 y 35 años, seleccionadas a criterio y que cumplieran con los criterios de inclusión, se diseñó un instrumento de recolección de información, la misma que se asentó en ella fue el registro del dolor antes y después de la colocación de férula, el dolor fue registrado de acuerdo a la escala visual análoga del dolor. La realización de las encuestas se dividió en dos fases: fase 1 antes de colocación de la férula, fase 2 después de tres meses de utilización de la férula. Se realizó el levantamiento de información clínica para cada uno de los pacientes previo consentimiento informado. Resultados: Los pacientes refirieron antes de la colocación de la férula la presencia de dolor de moderado a intenso, el mismo que posterior a la colocación de la férula oclusal presentaron mejorías en la sintomatología dolorosa, refiriendo una ausencia del dolor después de tres meses de colocación de la misma. Conclusiones: Se comprobó una mejoría de la sintomatología dolorosa de la articulación temporomandibular, estadísticamente significativa. Respecto al ruido articular de tipo chasquido se presentó una disminución en la prevalencia.
Comparación de la reabsorción radicular externa en prescripción MBT con brackets convencionales y autoligado
Authors: Cruz Peternell Luis Raúl , Mayoral García Verónica Anuette , Torre Martínez Hilda , Carrillo González Roberto
Published: August 2022

Introducción: La reabsorción radicular externa (RRE) es un proceso inflamatorio que se relaciona con los tratamientos ortodónticos. Existen diferentes factores de riesgo para que sea mayor la RRE, uno de ellos es el tipo de aparatología fija en cada prescripción de tratamiento. Objetivo: Comparar la reabsorción radicular externa en pacientes con prescripción MBT con brackets convencionales y autoligado. Material y métodos: Estudio observacional, comparativo, longitudinal, realizado en 116 radiografías panorámicas de pacientes de la Facultad de Estomatología de la Benemérita Universidad Autónoma de Puebla, con ortodoncia de prescripción MBT. Se conformaron dos grupos: brackets convencionales y autoligado. Se midió la longitud radicular antes de iniciar el tratamiento de ortodoncia y a los 18 meses. Para la comparación entre grupos se usó la prueba t de Student y U de Mann-Whitney. Para determinar la diferencia entre los promedios de los grupos se utilizó la prueba de Wilcoxon. Las pruebas estadísticas se interpretaron con un valor significativo menor a 0.05. Resultados: Tanto en el grupo convencional como en el autoligado las mujeres representaban más de 50% de la población estudiada (55.8 vs 60.9%, respectivamente). La edad de los pacientes oscilaba entre los 19 y 23 años. No hubo diferencia estadísticamente significativa al comparar la RRE en los dos grupos y en las dos arcadas; sin embargo, el grupo con brackets convencionales presentaron mayor RRE. Al comparar las medidas pretratamiento y 18 meses después del inicio se puede ver que en ambos tipos de brackets la RRE es estadísticamente significativa. El sexo y el apiñamiento no están relacionados con la RRE. Conclusión: La reabsorción radicular externa en pacientes con prescripción MBT con brackets convencionales es similar a la reabsorción radicular externa en pacientes con prescripción MBT con brackets de autoligado.
Evolución del tratamiento de mordida abierta anterior en pacientes en dentición mixta
Authors: Pérez-Traconis Laura Beatriz , Güemes-Flota Laura Alejandra , Colomé-Ruiz Gabriel Eduardo , Alonzo-Echeverría María Leonor , Aguilar-Pérez Fernando Javier
Published: August 2022

Introducción: La mordida abierta anterior se considera una compleja maloclusión, en la cual lograr y consolidar una sobremordida vertical representa un reto para odontólogos y pacientes. Se encuentra predominantemente asociada con parafunciones como la succión digital y la deglución atípica. En la actualidad, existen diversas terapias entre las cuales se encuentra el uso de la rejilla palatina fija, que actúa impidiendo el hábito, guiando lengua, labios y musculatura masticatoria a una ortofunción. Objetivo: Determinar la cantidad de sobremordida vertical obtenida en pacientes con mordida abierta anterior, portadores de rejilla palatina. Material y métodos: El tipo de estudio fue observacional, prospectivo, longitudinal y descriptivo, en un grupo de pacientes de cinco a 11 años, del área de licenciatura de la Facultad de Odontología de la Universidad Autónoma de Yucatán (UADY). Los pacientes fueron diagnosticados con mordida abierta anterior y tratados en un periodo de entre 17 a 28 semanas con rejilla palatina. Las mediciones fueron realizadas con un calibrador vernier electrónico, en cuatro sesiones durante el tratamiento, contando con evidencia fotográfica. Se midió la distancia entre dos puntos: el borde entre centrales inferiores y el borde entre incisivos superiores. La muestra se compuso de 47 pacientes, 23 del sexo masculino y 24 del femenino. La base de datos fue realizada con paquetería de Excel y los datos analizados en el software estadístico SPSS, en el cual se aplicó una prueba de t de Student. Resultados: Un valor crítico de -18.620 y una p < 0.001 confirman que existió evolución positiva con valor estadísticamente significativo. Conclusión: Se recomienda complementar el manejo ortodóncico, con terapia psicológica e intervención del fonoaudiólogo para garantizar el éxito y evitar recidivas.
Transposición bilateral de caninos inferiores: reporte de un caso clínico
Authors: Garibay Hernández Beatriz Catalina , Rizo Álvarez Diana , Rodríguez Chávez Jacqueline Adelina , Guerrero Velázquez Celia , Villanueva Betancourt Daniel , Hernández Roldán Erik
Published: August 2022

Introducción: La transposición dental es un término utilizado para nombrar los casos extremos donde hay una erupción ectópica, la cual provoca un cambio en la colocación natural de los dientes permanentes. Caso clínico: Paciente femenino de 12 años, que refiere «mis dientes me salieron por atrás». Presenta clase I esqueletal con tendencia a clase III por una hipoplasia maxilar, clase III molar derecha, clase canina no establecida, perfil recto y dentición mixta. Tratamiento con aparatología fija Alexander 0.018”, topes (bite turbo) en incisivos centrales superiores. Fase de alineación y nivelación: se indicaron extracciones de caninos temporales, colocación de botones en caninos inferiores para comenzar con la tracción de caninos hacia al arco y mecánica de cupla. Fase de trabajo: incorporación del cantilever para verticalización del segundo molar inferior derecho. Fase de detallado y finalización: uso de elásticos de 3/16 de 3.5 onzas en triángulo, finalizando con el retiro de aparatología y colocación de retención. Resultados: Después de dos años cuatro meses los objetivos fueron cumplidos, además de la paralelización del segundo molar inferior derecho. Conclusión: La transposición dental tiene diferentes etiologías, por lo que su correcto diagnóstico es importante para poder tener éxito el tratamiento.
Omicron Detection with X-Ray and CT-Scan Using Machine Learning
Authors: Reka N. , Sreerambabu Dr. J. , Kalidasan S.
Published: August 2022

Abstract: We investigated the symptomatic abilities of profound learning on chest radiographs and a picture classifier in light of the OMICRON was introduced to arrange chest MRI image. On account of a modest quantity of OMICRON information, information improvement was proposed to extend OMICRON information multiple times. Our model focuses on move learning, model reconciliation, and arranging chest MRI image as indicated by three marks: typical, OMICRON, and viral pneumonia. As per the precision and misfortune esteem, pick the models ResNet-101 and ResNet-152 with great impact for combination, and progressively further develop their weight proportion during the preparation cycle. In the wake of preparing, the model can accomplish 96.1% of the sorts of chest MRI image precision on the test set. This innovation has higher responsiveness than radiologists in the screening and conclusion of lung knobs. As an assistant demonstrative innovation, it can assist radiologists with further developing work proficiency and indicative exactness. Corona virus is acted like an exceptionally irresistible and dangerous pneumonia type sickness until ongoing time. Despite having extensive testing time, RT-PCR is a demonstrated testing system to distinguish Covid disease. At times, it could give more misleading positive and bogus adverse outcomes than the ideal rates.
IMPLEMENTASI PERANGKAT PEMBELAJARAN BIOLOGI SMA BERBASIS METAKOGNITIF UNTUK MENINGKATKAN KEMAMPUAN KOGNITIF DAN MENGEMBANGKAN KARAKTER MANDIRI SISWA
Authors: Mursali Saidil
Published: August 2022

Penelitian ini bertujuan mengimplementasikan perangkat pembelajaran Biologi SMA berbasis metakognitif untuk meningkatkan kemampuan kognitif dan mengembangkan karakter mandiri siswa. Jenis penelitian ini adalah pra-eksperimen dengan desain one group pretest-postest dan teknik analisis data deskriptif kuantitatif. Perangkat pembelajaran diimplentasikan pada 30 siswa kelas X-8 SMA Negeri 1 Manyar. Hasil implementasi perangkat pembelajaran, meliputi: keterlaksanaan RPP selama tiga kali pertemuan berkategori sangat baik, kemampuan kognitif dilihat dari ketuntasan indikator rata-rata mencapai 94% dikategorikan tuntas, ketuntasan individual rata-rata mencapai 87,17 dikategorikan tuntas, dan karakter mandiri siswa umumnya berkategori baik. Secara keseluruhan dapat dikatakan bahwa perangkat pembelajaran berbasis metakognitif yang diimplementasikan pada di SMA Negeri 1 Manyar dapat meningkatkan kemampuan kognitif siswa, mengembangkan karakter mandiri siswa.
PERBEDAAN PRESTASI BELAJAR MATA PELAJARAN MIPA KELAS X ANTARA SISWA REGULER DENGAN SISWA AKSELERASI DI SMA NEGERI 3 MALANG
Authors: Wardani Endah , Nurwidodo Nurwidodo , Wahyuni Sri
Published: August 2022

Terdapat kesenjangan antara harapan dan kenyataan pada prestasi belajar mata pelajaran MIPA siswa kelas X antara siswa Reguler dengan siswa kelas Akselerasi. Ada anggapan atau kecendrungan bahwa prestasi belajar mata pelejaran MIPA siswa Reguler lebih rendah daripada siswa Akselerasi. Peneliti ingin melihat keadaan sesungguhnya di lapangan bagaimana prestasi mata pelajaran MIPA kelas X antara siswa Reguler dan siswa Akselerasi di SMA Negeri 3 Malang. Tujuan penelitian ini yaitu (1) Untuk mengetahui perbedaan prestasi belajar mata pelajaran MIPA antara siswa kelas Reguler dan siswa Akselerasi di SMA Negeri 3 Malang. (2) Untuk mengetahui faktor-faktor yang berpengaruh terhadap prestasi siswa kelas regular dengan siswa kelas akselerasi di SMA Negeri 3 Malang. Manfaat penelitian ini (1) Manfaat teoritis dari penelitian ini adalah dapat diketahui faktor-faktor apa sajakah yang berpengaruh terhadap prestasi belajar MIPA.(2) Untu memberikan masukan kepada sekolah-sekolah tentang system pendidikan yang ada. Populasi penelitian adalah semua siswa kelas Reguler dan Akselerasi, sedang sampel penelitian yang digunakan adalah siswa kelas X1 program Reguler dengan siswa kela X program Akselerasi, Penelitian ini di laksanakan di SMA Negeri 3 Malang. Teknik analisis data yang digunakan pada penelitian ini adalah uji-t pada dua sampel bebas dan analisis regresi linear berganda. Dari hasil analisis data didapatkan hasil (1) nilai t-hitung < t-tabel pada taraf signifikasi 0,05 sehingga Ho diterima, Ha ditolak yang berarti terdapat perbedaan yang tidak signifikan antara rata-rata nilai MIPA siswa Reguler dengan siswa Akselerasi. (2) Dari hasil analisis regresi linier berganda didapatkan hasil nilai F- hit>nilai F-tabel pada taraf signifikasi 0,05 maka variable yang diteliti yaitu waktu yang dicurahkan untuk belajar, buku pelajaran MIPA yang dimiliki, Waktu untuk kegiatan selain belajar di sekolah berpengaruh secara nyata terhadap prestasi belajat mata pelajaran MIPA.
Penilaian Kualitas Daya Sistem Kelistrikan PT. Sai-Pasuruan
Authors: Ronilaya Ferdian
Published: August 2022

The reliability services and power quality of power system nowadays become popular in industry because of cost energy reason, not exception for PT SAI. This company utilize control unit process to produce aluminum foil. The purpose of this research is identifying and analyzing the power quality of PT SAI and then to find the correct and economical solution to extinguish the source of bad power quality. After we identified, we conclude that 65% of load are AC motors, 25% of DC motors, 8% of heater and 2% of lightning. For over voltage and under voltage, refers to IEEE 519 – 1995 standard, PT SAI have 99% of nominal voltage. But for voltage imbalanced, refers to NEMA MG-1-1993 standard, PT SAI have 1,22%. For THD of voltage, PT SAI have 1,98%. But for THD of current, PT SAI have 34,47%. While transformer loading between 0,47% - 29,7%.
Pengaruh Waktu Treatment Serat terhadap Sifat Mekanik Komposit Serat Tapis Kelapa
Authors: Suardana Ngakan Putu Gede , Dwidiani Ni Made
Published: August 2022

Coconut tapis fiber is one of the natural fiber for use composites on account of its characteristic such as a high strength to weight ratio, resistance to corrosion, resistance to wear, good finishing surface, no health risk and easy availability. This research was conducted to study tensile strength and flexural strength of coconut tapis fiber reinforced composite with variable of fiber treatment in NaOH for 2, 4, and 6 hours. This research used coconut tapis fiber with 0.04 -1 mm diameter and 10 mm length, resin unsaturated polyester type Yukalac 157 BQTN-EX as its matrix, and metil etil keton peroxide 1% as its hardener. The fiber was treted in NaOH for 2, 4, and 6 hours, afterward rinsed and dried, respectively. The composite was made using press hand lay-up technique with post curing 2 hours at temperature of 620C. Tensile and flexure test specimen were made based on ASTM D3039 and ASTM D 790-03 standard accordingly. The result shows that tensile strength decrease with increasing treatment in NaOH. The highest tensile strength was achieved by 2 hours treatment in NaOH at 58.8 MPa. The highest tensile strain was achieved by 2 hours treatment NaOH at 1.30%. The highest tensile modulus of elasticity was achieved by 6 hours treatment in NaOH at 5.07 GPa. In agreement with tensile strength, flexural strength also decreased with increasing treatment in NaOH. The highest flexural strength was achieved by 2 hours treatment in NaOH at 125.98 MPa, and the highest flexural strain was achieved by 2 hours treatment in NaOH at 1.35%. The highest flexural modulus of elasticity was achieved by 6 hours treatment in NaOH at 13.55GPa.
Analysis Measurement of Quality Service Hotel with Approach of Method Servqual
Authors: Wiwi Umar
Published: August 2022

Hotel UMM Inn is a kind of hotel in Malang at Muhammadiyah Malang University. Hotel UMM Inn in university Commitment of service quality that orients to customer in main prerequisite in supporting a bussines success, especially to service industry. This is caused a service quality is largely depending from who how the service is given. In A Quarter of hotel bussines in malang and the coming of Motel, Wisma and Villa. In this research, method which used in measurement of service quality is method of Servqual. Assessment of quality of service by using method of Servqual reckoned from by difference between expectation and perception of service. Data-Processing taken is calculation of expectation score and perception of custumer, calculation of service gap score, determination of service quality factor and map service variable into Customer Window. Result of this research indicate that score of is quality of hotel service there are 7 valuable service variable of negativity like Hygiene of hotel UMM Inn, availibility of clean water in toilet, accident insurance guarantee and the others. Result of from Customer Window indicate that service variable which must be made by especial priority (Here Concentrate) which must fulfill by hotel management of UMM Inn that is clean of Hygiene of hotel UMM Inn, availibility of clean water in toilet, and departure and the others.