bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of frying on fish, fish products and frying oil – a review
Authors: S. NurSyahirah , A. Rozzamri
Published: September 2022

Fish and fish products contain important source of nutrient that provides benefits upon
consumption. The increasing demand and high utilization of fish have caused a market
shift in the fishery industry. Although fish is nutritious, some consumers do not prefer to
consume fish in its original form because of its fishy taste, fishy odour and it is highly
perishable. To further promote the consumption of fish, the production of fish products
and frying are applied to suit consumers’ preferences. Frying is commonly used in various
food premises as it changes the characteristics of the fish and fish products, especially the
taste and texture. However, the increase in awareness has changed the perception of the
consumer as they prefer healthier food in their lifestyle. Despite the increase in awareness,
some consumers still prefer fried foods and food products due to their unique sensory
properties and texture. To understand the effects of frying on foods, several parameters
during frying are studied. Frying temperature, frying cycle, frying time, frying techniques
and frying oils used are parameters that could affect the physicochemical and sensory
attributes of the fish and fish products. Repetitive frying could cause the formation of
toxins and alter the fatty acid content in the fish, fish products and frying oils. This
changes the taste and alters the composition of the foods. Meanwhile, different frying
times, oil and techniques cause significant changes to the chemical composition, sensory
attributes, lipid oxidation, fat content, oil absorption and fatty acid profiles of the fish and
fish product. This review aimed to gather information specifically on the changes in fish
and fish products upon frying at different frying cycles, time, temperature, oils, and
techniques.
Association of mothers' child feeding knowledge, attitude, and practices with
nutritional status of children under the age of five in a Malaysian fishing
community: a cross-sectional study
Authors: Zakaria N.S. , A. Asma' , Zakaria N.S. , Abd Wahab M.R. , Lani M.N. , Meli A.M.
Published: September 2022

Mothers' nutritional knowledge, attitudes, and practices are critical to ensuring that they
can feed their children in accordance with proper child feeding guidelines, hence
preventing undernourished children. However, there has been little research into mothers'
knowledge of feeding, attitudes, and practises in fishing communities, notably in
Terengganu, Malaysia. The purpose of this cross-sectional study was to analyse mothers'
children's nutritional knowledge, attitudes, and practices, as well as their relationship to
the nutritional status of fishermen's children under the age of five in Terengganu. This
study was conducted through a home visit with 60 mothers and 60 children aged 2-4 years
(55.0% girls, n = 33; 45.0% boys, n = 27). Mothers' nutritional knowledge, attitude, and
practice were examined using adapted questionnaires, while child nutritional status was
measured using height-for-age and BMI-for-age assessments. All of the mothers had an
educational background, with at least 5.0% (n = 3) attending primary school, 85% (n = 51)
attending secondary school, and 10.0% (n = 6) finishing higher tertiary education, as per
results. According to the data, most mothers have good knowledge (68.3%, n = 41), a
positive attitude (71.7%, n = 43), and good practises (71.7%, n = 43) when it comes to
child feeding. The majority of children had normal BMI (63.3%) and height for their age
(91.7%). There was no relationship found between the mother's child feeding knowledge
(p = 0.342, r = -0.125), attitude (p = 0.357, r = 0.121), and practises (p = 0.587, r = 0.073)
and the children's BMI-for-age. Mothers' knowledge of child feeding (p = 0.627, r =
0.064), attitude (p = 0.9982, r = -0.002), and practises (p = 0.709, r = -0.049) were
likewise unrelated to children's height-to-age. A comprehensive approach including
parents, communities and government agencies should be established to enhance mothers'
child-feeding knowledge, attitudes, and practises, particularly among low-income
families.
Resuscitative Endovascular Balloon Occlusion of the Aorta as a Bridge to Organ Donation after Blunt Trauma
Authors: Sumislawski Joshua J , Foley Dylan P , Moore Ernest E , Moore Hunter B
Published: September 2022

Solid organ transplantation is limited worldwide by a shortage of donor organs. Trauma patients with unsurvivable injuries comprise a large portion of potential organ donors, but many of them die from cardiovascular collapse before donation can be pursued. We report the use of resuscitative endovascular balloon occlusion of the aorta (REBOA) to stabilize a deteriorating patient with blunt trauma who was ultimately able to donate multiple organs and tissues. Survival to organ donation is a tangible and beneficial outcome of REBOA.
Successfully Stifling Retroperitoneal and Pelvic Exsanguination by Resuscitative Endovascular Balloon Occlusion of the Aorta in a Rural Setting
Authors: Bonnici Maximilian , Knight Davis Jennifer
Published: September 2022

Background: Torso hemorrhages are increasingly controlled by transient employment of Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA). Few studies report patients’ conditions after the initial resuscitation period using REBOA, especially in a rural setting. We present a highly successful 1-year post-operative recovery using REBOA for retroperitoneal and pelvic exsanguination.Methods: A 36-year-old female suffered a constellation of traumatic injuries after being ejected from her motorcycle. She arrived at a rural level 1 trauma center shortly thereafter.Results: REBOA was employed to control profuse hemorrhaging and the patient had a highly resilient recovery after one year. A literature review was conducted to highlight the points of contention regarding the controversial use of REBOA.Conclusion: REBOA can produce favorable results with minimal long-term deficits when controlling pelvicexsanguination.
Technical Considerations for the Use of REBOA in the Management of Placenta Accreta Spectrum
Authors: Nieto-Calvache Albaro José , Rodríguez Fernando , Ordoñez Carlos A , Cardona Astaiza Adriana , Carbonell Juan Pablo , Vergara-Galliadi Lina María , Sinisterra-Díaz Stiven Ernesto , Bryon Adriana Messa
Published: September 2022

In recent years, the use of resuscitative endovascular balloon occlusion of the aorta (REBOA) has become popular to prevent or treat massive bleeding due to placenta accreta spectrum (PAS). There are multiple variations in the use of REBOA in this context, and although the experience of vascular surgeons with aortic balloons is extensive, there are particularities in the management of these devices in the obstetric population that deserve to be discussed. We discuss some technical considerations or “lessons learned” in our center that may be useful for other groups starting to use REBOA for PAS. Although REBOA is a useful strategy to prevent or treat massive bleeding due to PAS, its incorporation into management protocols must be carried out in a programmed and supervised manner.
REBOA and the Open Abdomen
Authors: Shehab Maysam , Fajer Simone
Published: September 2022

Background: Uncontrolled hemorrhage is a significant cause of death worldwide. Rapid bleeding control is a major life saving goal. Resuscitative endovascular balloon of the aorta (REBOA) is a minimally invasive technique that temporarily occludes the aorta and achieves hemorrhage control.Methods: We present a case series of patients that underwent emergent laparotomy due hemorrhagic shock and were stabilized intraoperatively using REBOA.Results: Between December 2018 and September 2021, intraoperative REBOA was inserted in six patients. Etiologies included two postpartum hemorrhages, two gastrointestinal bleeds and two trauma cases. REBOA was positioned and inflated in the descending aorta (n = 3) and infrarenal aorta (n = 3). In all cases, REBOA resulted in immediate stabilization of blood pressure, enabling definitive treatment. Partial inflation was performed in all cases after initial stabilization. There was one minor access related complication, treated successfully. There was no mortality at 6 months follow up.Conclusions: REBOA is another important resuscitative tool to be considered, also in the open abdomen. It allowsfor hemodynamic stabilization and enables definitive surgical repair of other major injuries.
Transcatheter Arterial Embolization for Blunt Hepatic Trauma in a Preschooler
Authors: Sugiyama Takuya , Hashimoto Katsuhiko , Usuki Ryutaro , Mori Yusuke , Ishida Tokiya , Tameta Tadanobu , Kobayashi Hiroko , Shinohara Kazuaki
Published: September 2022

Published reports regarding the use of transcatheter arterial embolization (TAE) for blunt hepatic trauma in young children, especially preschoolers (3–5 years old), are still scarce. We present a case report of a 4-year-old girl who was involved in a motor vehicle accident while sitting in the passenger seat without wearing a seatbelt. Focused Assessment with Sonography for Trauma and contrast-enhanced computed tomography scan showed severe liver injury with signs of active intraabdominal bleeding. Selective hepatic artery embolization was performed to control arterial hemorrhage. No procedure-related complications occurred, and she was discharged on foot on day 14. TAE is a safe and effective treatment for hemostasis in blunt hepatic trauma, and it should be strongly considered as a treatment option not only in adults but in young children as well.
Successful Endovascular Embolisation of an Unusual Giant Pseudoaneurysm of the Middle Colic Artery
Authors: Borzelli Antonio , Cangiano Gianluca , Silvestre Mattia , Corvino Fabio , Corvino Antonio , De Magistris Giuseppe , Niola Raffaella
Published: September 2022

Visceral artery pseudoaneurysms (VAPAs) are extremely rare and pseudoaneurysms in the superior mesenteric artery (SMA) and its branches, particularly the middle colic artery, are the rarest. These account for 6–8% of all VAPAs with an incidence of 0.01%. They can be associated with an inflammatory disease (such as pancreatitis), infection or arise as a post-surgical complication, but they can also be due to a traumatic damage to the artery caused by a full-thickness slit in the arterial wall. They can be asymptomatic or manifest with symptoms such as abdominal pain, nausea and vomiting, local pressure symptoms (such as a pulsatile mass or a bruit) and gastrointestinal bleeding. Imaging techniques play a key role in the diagnosis of VAPAs and angiography still represents the gold standard, although nowadays it has a pivotal role for treatment with the possibility to perform an endovascular embolisation. In fact, although rare, VAPAs are of clinical importance mainly because they can cause life-threatening intra-abdominal or retroperitoneal haemorrhage and so prompt treatments are crucial, whether they are symptomatic, haemorrhagic or incidentally found. In the past, surgery was the treatment of choice, but in recent years with the improvement and development of interventional vascular techniques, surgery has been replaced by transcatheter endovascular embolisation due to its low morbidity and mortality and high success rate. In this article, we report the case of an unusual giant spontaneous pseudoaneurysm of the middle colic artery in a patient with a scoliotic abdominal aortic aneurysm successfully treated by endovascular embolisation.
Successful Endovascular Management of a Massive Hemoptysis due to a Rare Oncological Giant Pulmonary Artery Pseudoaneurysm
Authors: Borzelli Antonio , Amodio Francesco , Cavaglià Enrico , Giurazza Francesco , Corvino Fabio , Corvino Antonio , Pane Francesco , Coppola Milena , De Magistris Giuseppe , Cangiano Gianluca , Niola Raffaella
Published: September 2022

Massive hemoptysis represents a distressing and life-threatening condition: 95% of cases originate from the bronchial artery system, with pulmonary arteries accounting for 6%–11% of cases. The most common etiology of hemoptysis from the pulmonary artery system is represented by pulmonary artery pseudoaneurysms (PAPs). PAPs are defined as the focal dilation of a pulmonary artery branch, involving only the adventice, with a higher risk of rupture than a true aneurysm. It constitutes a rare finding, often underdiagnosed by radiologists. However, PAPs can be life-threatening if undiagnosed due to a high mortality rate (50%). They frequently occur in patients affected by erosive inflammatory processes and necrotising infections of the lung or heart, but other etiological factors include trauma, vasculitis, neoplasia, pulmonary hypertension and Hughes–Stovin Syndrome. PAPs due to oncologic etiologies are rare. Among oncologic etiologies, the most frequent are represented by primary lung cancer rather than metastases. Today, CT angiography represents the imaging modality of choice; not only to establish diagnosis, but if performed with an appropriate timing of intravenous contrast, it also helps to plan therapy with an endovascular approach. In fact, endovascular treatment is the preferred therapeutic approach in managing hemoptysis due to PAPs, since a surgical approach is associated with a high risk of morbidity and mortality, especially in patients who are poor surgical candidates. In this article we report the case of massive hemoptysis due to an unusual giant PAP of the posterior lower branch of the right pulmonary artery, in a patient affected by pulmonary colliquated and confluent metastases, successfully treated by endovascular embolisation.
Impact of Monetary Policy on Inflation and Investment in Pakistan: A Time Series Analysis
Authors: Chaudhry Imran Sharif , Iqbal Asia , Umar Muhammad , Faheem Muhammad
Published: September 2022

Purpose: This study aims to explore the impact of monetary policy on inflation and investment in Pakistan.

Methodology: Our study employs the Autoregressive distributed lag model (ARDL) over the time of 1972 to 2019.

Findings: The empirical findings show that in the long-run impact of money supply has significant and positive on investment and other variables trade, foreign direct investment, gross domestic saving, services are also positively associated with the investment. While other variables interest rate and exchange rate negatively linked with investment. Empirical findings of the second econometric model show the core variable money supply has a significant and positive on inflation including other variables foreign direct investment, exchange rate, exports and government expenditures on education but other variables interest rate, gross domestic saving and agriculture output negatively linked with inflation.

Implications: The study indicates that a stable monetary policy should be introduced to improve a country's economic development. Monetary policy should be used to build an agreeable environment of uncertainty that draws both domestic and outside investors to promote economic growth. Economic growth can be accomplished by encouraging efficient monetary policy steps for inflation stability and attractive interest rates.
Opening of Kartarpur Corridor: A Critical Discourse Analysis that How Indo-Pak Media Projected the Corridor Initiative
Authors: Shahzad Shakeel , Ullah Zia , Khan Imad
Published: September 2022

ABSTRACT

 

 Purpose: Taking Kartarpur Corridor opening as a case study, this research paper highlights the divergent perspective prevalence across Indian and Pakistani media.

Design/Methodology/Approach: The data was taken from Indian and Pakistani newspapers and selected articles (published from 2020 to 2022) from different religious background. The research paper used critical discourse analysis to draw pertinent conclusions and proffering Pakistan specific media recommendations.

Findings: When it comes to informing the public about vital issues, media plays a critical role in presenting diverse viewpoints in line with its own business practices and/ or state narrative. This research revealed that Kartarpur Corridor has been referred to as a symbol of peace and stability, religious tourism, mediation and diplomatic endeavors by Pakistani media. Indian media, on the other hand, concentrated on raising concerns about security and travel modalities, pilgrimage facilities and interstate tensions.

Implications/Originality/Value: The research has a great implication with respect to awareness of media, peace and prosperity of the public, positive coverage of media and religious tourism for the republic of India and Pakistan.
Using Analytical Thought Process to Develop Instructional Rubrics in Writing Doctoral Dissertation Research Problem Statement – A Follow-Up Study
Authors: Ali Azad , Pandya Shardul , C VARMA UMESH
Published: September 2022

Aim/Purpose: The purpose of this paper is to develop instructional rubrics that help in writing and evaluating doctoral dissertation research problem statements.

Background: This is a follow up study. In the first paper (Ali & Pandya, 2021), we introduced a model for writing a research problems statement that takes the students through four phases to complete their writing. In this paper, we introduce an instructional rubric to be used for helping to writing the re-search problem statement.

Methodology: This paper builds on the previous model, adding to it Socratic questions to trigger critical thinking to help with writing of research problem statement.

Contribution: Developing the instructional rubrics is the contribution of this study. The instructional rubrics can help with the writing of a research problem statement.

Findings: Writing a research problem statement is difficult by itself. Following the methodological approach suggested in this study will help students with the task of writing their own. Following this instructional rubric will help more with the writing.

Recommendations for Practitioners: A methodological approach to writing a research problem statement is helpful in mitigating the difficulties of writing the dissertation. This study tackles the difficulties with writing the research problem statement.

Recommendations for Researchers: More research is needed to give examples of research problem statement that shows the writing of the statement through the suggested phases.

Impact on Society: The findings of this research will help doctoral mentors/advisors as they guide students in completing the writing of their research problem statement.
Principales características fenotípicas crónico degenerativas asociadas al síndrome de Down: Una revisión narrativa
Authors: Esparza-Ocampo Kenia , Chaidez-Fernández Yuridia , Magaña-Ordorica Dalia , Angulo-Rojo Carla , Guadrón-Llanos Alma , Castro-Apodaca Francisco , Magaña-Gómez Javier
Published: September 2022

El síndrome de Down (SD) es la cromosomopatía más común, con una prevalencia de 3.7 y 2.9 por 10,000 nacimien-tos en México y Sinaloa, respectivamente. Aunque la esperanza de vida ha ido en aumento en esta población, pa-sando de 8 años hace 5 décadas a 60 años en la actualidad, también conlleva la aparición de condiciones crónicas y degenerativas propias del envejecimiento y aparentemente de mayor riesgo en esta población. Condiciones como discapacidad intelectual, trastornos oftálmicos, malformaciones cardiacas congénitas, trastornos gastrointestinales, alteraciones metabólicas como sobrepeso, obesidad y diabetes, alzheimer, leucemia, enfermedad tiroidea, isquémica y cerebrovascular son causas frecuentes de morbilidad y mortalidad. Por ello, el conocimiento sobre los aspectos clínicos de estos pacientes contribuirá a mejorar los programas de prevención e intervención, disminuir las compli-caciones y mejorar la atención y calidad de vida de esta pobación. Palabras clave: Síndrome de Down, enfermedades crónicas no transmisibles, prevención y control, calidad de vida.
Cáncer colorrectal de inicio temprano
Authors: Trujillo-Rojas Miguel Ángel , Beltrán-Ontiveros Saúl Armando , Zavala-Castillo Juan Miguel , Sosa-Chombo María Fernanda , Verdugo-Rosas Abraham , Rochín-Terán Juan Luis , Bolívar-Rodríguez Martin Adrián , Mora-Palazuelos Carlos Ernesto , López-Manjarrez Guadalupe , Moreno-Ortiz José Miguel
Published: September 2022

Las tasas de muerte y aparición de CCR se incrementan rápidamente después de los 50 años. Sin embargo, en los últimos años la incidencia de CCR en individuos de una edad menor de 50 (cáncer colorrectal de inicio temprano) se ha incrementado dramáticamente. Se desconocen las causas de este fenómeno. Aunque los síndromes de cáncer hereditario y los antecedentes familiares de CCR pre-disponen y explican algunos de los casos de inicio temprano, la mayoría de estos surgen esporádicamente, los cuales muy probable-mente están ligados a factores de riesgo de estilo de vida y ambientales. Los casos en jóvenes poseen características clínico-patológicas y moleculares particulares. Suelen presentar características tumorales agresivas y un estado avanzado de la enfermedad al diagnóstico. Por lo anterior, se requieren más estudios sobre la patogénesis de esta enfermedad además de estudios sobre posibles factores de riesgo específicos para este subgrupo de pacientes. Palabras clave: Colorrectal, cáncer, patogénesis
Enfermedades genéticas: El caso de los patrones de herencia monogénica
Authors: Meza-Espinoza Juan Pablo , Beltrán-Ontiveros Saúl Armando , Contreras-Gutiérrez José Alfredo , Picos-Cárdenas Verónica Judith
Published: September 2022

Las enfermedades monogénicas, que se producen por mutaciones en un solo gen, se clasifican en autosómicas dominantes, autosómicas recesivas, ligadas al X recesivas y ligadas al X dominantes. En general, estos trastornos se presentan con mayor frecuencia en edad pediátrica, pero no son raros en individuos mayores. La base de datos de OMIM (Online Mendelian Inheritance in Man) registra un total de 26,231 enfermedades autosómicas y 1,320 tras-tornos ligados al cromosoma X. El objetivo de este estudio es abordar las principales características de los patrones de herencia monogénicos, entre las que se incluye el riesgo de padecer la enfermedad en familias portadoras de mutaciones, así como incluir las enfermedades más comunes de cada uno de ellos. Palabras clave: Patrones de herencia monogénico, autosómico dominante, autosómicas recesivo, ligado al X recesivo, ligado al X dominante.
Hemorragia intraventricular grado IV, manejada con leche materna intranasal: reporte de caso
Authors: Martínez-Félix Nora Selene , Núñez-Martínez Luigina , Moreno-Gómez Rene , Cabanillas-Ayón Marisol , García-Zamora Alicia , Leal-Leon Emir Adolfo , Verdugo-Montes Aglaet Marisol
Published: September 2022

La hemorragia intraventricular (HIV) representa un problema de salud grave en los recién nacidos (RN). En en mejor escenario, el paciente que la padecen sufre un daño cerebal irreparable. Esto principalmente se debe a la falta de un tratamiento adecuado. En este trabajo, presentamos el resultado de la diaria administración intranasal de leche ma-terna en un RN diagnosticado con HIV. Después de 61 días de tratamiento, el paciente mostró una recuperación completa. Palabras clave: Leche materna; intrasal; recién nacido; hemorragia intraventricular.
Hamartoma astrocítico de retina en un paciente con diagnóstico de esclerosis tuberosa. Reporte de un caso
Authors: Lizárraga-Barrón Juan Francisco , Ruelas-Barreras Alejandro , Meléndez-Ledesma María del Socorro Esmeralda , Lizárraga-Barrón Dalia Selene , Acuña-Maldonado Ruth , Zatarain Bayliss Lucia , Romo-García Efraín , Perdomo-Martínez Romulo , Lizárraga-Velarde Silvia
Published: September 2022

La esclerosis tuberosa (ET) es una enfermedad poco común multiórganica de carácter crónico que presenta tumoraciones principalmente al sistema nervioso, riñones, piel y el globo ocular específicamente en retina. De las lesiones de ET aproximadamente del 30 al 50% afectan la retina, esta afectación se le llama hamartoma astrocítico de retina (HAR) que se deriva del crecimiento anómalo de los astrocitos de la retina, en la capa de fibras nerviosas. Se presenta un caso clínico de paciente masculino de 7 años de edad con diagnóstico de ET asintomático, el cual acude por primera vez para revisión oftalmológica. Palabras clave: Esclerosis tuberosa, hamartoma astrocítico, tumor retina.
Metástasis ósea en carcinoma de mama. Reconstrucción con prótesis no convencional de fémur
Authors: Galavíz-Ortega Jorge Alan , Cortez-Flores José Daniel , Lora-Fierro Emilio Heraclio , Durán-Arce Alberto Enrique , Rochín-Terán Juan Luis , Verdugo-Rosas Abraham , Moreno-Ortiz José Miguel , Beltrán-Ontiveros Saúl Armando , Duran-Carranza Jaime
Published: September 2022

Las metástasis óseas se desarrollan a partir de émbolos de células malignas que, procedentes del tumor primario y favorecidas por el crecimiento y la necrosis tumoral, acceden a través de los vasos linfáticos y sanguíneos al tejido óseo, por tanto, son el proceso neoplásico maligno más común del sistema músculo esquelético. Se reporta el caso de un paciente femenino de 58 años, con antecedente de carcinoma lobulillar infiltrante pleomórfico de mama, diagnóstico inicial en 2002. Palabras clave: metástasis ósea, carcinoma mama, prótesis fémur.
Sífilis congénita temprana: reporte de caso
Authors: Buelna-Alpízar Anaís , Derat-Quintero Karla socorro , Velázquez-Díaz Estefanis Irene , Martínez-García Jesús Javier , Martínez-Félix Nora Selene , Gutiérrez-Arzapalo Perla Yareli , López-López Kenia , Cabanillas-Ayón Marisol
Published: September 2022

La sífilis congénita es causada por una bacteria en forma de espiroqueta denominada Treponema pallidum; se transmite de la madre infectada al feto. Esta enfermedad causa distintas alteraciones sistémicas, dependiendo en qué fase de la sífilis se infecta el producto. Se presenta un caso de paciente femenino de 24 años con 33.1 semanas de gestación. Palabras clave: sífilis congénita, Treponema pallidum.
Adenocarcinoma pancreático de glándulas espumosas, entidad infrecuente que simula lesión benigna: un reto diagnóstico
Authors: Ríos-Burgueño Efrén Rafael , Urías-Barreras Cynthia Marina , Martínez-Félix Melissa , Morán-Pórtela David de Jesús , Beltrán-Ontiveros Saúl Armando , Velarde-Félix Jesús Salvador
Published: September 2022

Resumen El adenocarcinoma pancreático de glándulas espumosas (APGE) es una de las neoplasias de páncreas pocos fre-cuentes con características similares a tumores benignos, este tipo de diagnóstico representa un verdadero reto al médico anatomopatólogo debido a que la lesiones suelen confundirse con alteraciones benignas principalmente por la presencia de células espumosas de citoplasma amplio vacuolado y núcleo pequeño que parecen macrófagos es-pumosos. Se presenta un caso clínico de paciente femenino de 66 años con APGE presentando síntomas como aco-lia, coluria, ictericia conjuntival, prurito, dolor en hipocondrio derecho constante de leve a moderada intensidad, anorexia, náuseas y vómitos, con pérdida de peso de 6 kg en dos meses. Palabras clave: APGE, cáncer de páncreas, diagnóstico
Bridge’s Overall Structural Scheme Analysis in High Seismic Risk Permafrost Regions
Authors: Xiong Zhihua , Chen Jianbing , Liu Chen , Li Jinping , Li Wenwen
Published: September 2022

The mechanism of pile-soil reaction in frozen ground is not clear at present, but it is obvious that the reduction of dead weight will be beneficial to the seismic resistance of bridges. In view of the limited bridge engineering practice in high seismic risk permafrost regions, the paper addressed the structural performance of the superstructure and its effect on piles in these special regions. Four superstructures with different dead weights were compared, and bored piles were designed. Numerical simulations were implemented to investigate the refreezing time of the bored pile foundation. The concrete pile cooled rapidly in the first two days. The refreezing times of the GFRP, prestressed concrete T-girder, integrated composite girder, and MVFT girder were 15d, 37d, 39d, and 179d, respectively. The refreezing time of a pile in the same soil layer is mainly affected by the pile’s diameter, and it is significantly correlated to the square of the pile diameter. It reflects that the selection of bridge superstructures in the permafrost region is very important, which has been ignored in previous studies. The pile length and pile diameter of the lighter superstructure can be shorter and smaller to reduce the refreezing time and alleviate the thermal disturbance. Doi: 10.28991/CEJ-2022-08-07-01 Full Text: PDF
Liquefaction Potential Evaluation by Deterministic and Probabilistic Approaches
Authors: Hossain Md Belal , Roknuzzaman Md , Rahman Md Mahabub
Published: September 2022

Bangladesh is one of the world's most disaster-prone areas. The northwest region of Bangladesh is the most seismically active region. Dinajpur is the district closest to the Himalayan frontal thrust, making it the most vulnerable to earthquake-related liquefaction. Therefore, the in-situ parameters are used to assess the liquefaction susceptibility of the subsurface geology for the Dinajpur district in terms of soil liquefaction safety factor (FS), the liquefaction potential index (LPI), and the liquefaction probability (PL). This study used deterministic and probabilistic techniques to estimate the liquefaction susceptibility of the area based on standard penetration test (SPT) N values. SPT data was collected at 160 different places within the study area. In an earthquake scenario with Mw = 6.5, liquefaction resistance is evaluated at each location using a 0.20g peak ground acceleration (PGA). The results of the SPT-based liquefaction assessment techniques were found to be considerably different. The soil strata prone to liquefaction in different zones of the city have been determined based on a common comparison. According to deterministic and probabilistic techniques, it has been found that, out of 160 locations, 36 and 50 sites are susceptible to liquefaction. Then, using geospatial techniques (IDW interpolation), hazard maps were created depending on the potential for liquefaction of particular locations. Finally, using an independent secondary dataset, the resulting hazard maps were validated to examine the developed approach. The obtained R2values for each regression analysis event were more than 0.79. Therefore, the produced hazard map may be utilized successfully for planning, management, and long-term development of the studied locations. Doi: 10.28991/CEJ-2022-08-07-010 Full Text: PDF
Assessing the Wastewater Pollutants Retaining for a Soil Aquifer Treatment using Batch Column Experiments
Authors: Raji V. R. , Packialakshmi S.
Published: September 2022

In this study, the Secondary Treated Waste-Water (STWW) to infiltrate through the soil matrix, hence eliminating the contaminants in the effluent. For this study, three types of soil, such as loamy sand, fine sand, and clayey soil, were subjected to two cycles of wetting and drying to assess the type of soil that removes the maximum contaminants under which cycle. At diverse locations, soil samples were collected and examined to determine the soil types. Likewise, STWW was collected from Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) and Perungudi Sewage Treatment Plant (PSTP) to illustrate the quality of water before Soil Aquifer Treatment (SAT). About 1.5 m in height and 8 mm in diameter of fabricated acrylic material columns are used for the soil aquifer treatment efficiency studies. Water quality parameters, namely pH, TDS, and turbidity, were monitored throughout the study. All the organic compounds present in water were reduced to a higher level only in the fine sand in the one-day wetting/drying cycle. pH was reduced from 8.55 to 7.5, TDS was reduced from 1580 mg/l to 850 mg/l, and Turbidity was reduced from 7.24 to 4.04 NTU. This proposed method is to minimize the amount of water pollution from the environment. It is an effective way to manage aquifer recharge (MAR). SAT is the easiest method, aquifer and/or soil-based treatment systems improve the effluent quality of wastewater by removing the trace elements in the aquifer during the recharge of groundwater. It is likewise attractive for technologically advanced as well as emerging countries, and it is supple enough to allow adaptation to home-grown requirements by uniting it with predictable natural or bringing about water and technologies of wastewater treatment. Doi: 10.28991/CEJ-2022-08-07-011 Full Text: PDF
Mechanical Analysis of Subgrades of Road Pavements in Life Cycle Assessment
Authors: Donato Marina , Gouveia Bruno Guida , De Medeiros Alexandre Simas , Da Silva Marcelino Aurélio Vieira , Oda Sandra
Published: September 2022

When evaluating the sustainability of a construction project, it is important to verify the influence of climate uncertainty and the depletion of natural resources that permeate the strategies to make infrastructure possible, especially those associated with the transportation sector, which have great potential to generate environmental impacts. Thus, the objective of this study is to evaluate the effect that subgrade material variation, which constitutes highway pavements with flexible surfacing, can generate in the Life Cycle Assessment (LCA) of these infrastructures. For this purpose, pavements that had the same materials and thicknesses for the execution of the base (gravel soil-NG') and the subbase (clay soil LG'), but with subgrades composed of different types of tropical soils, classified as lateritic and non-lateritic, were proposed. The combination of these elements enabled the elaboration of pavements with different service lives and atmospheric emissions. The scope of the study included the phases of extraction and production of the inputs necessary to build the roadway envisioned in each scenario, as well as the construction phase itself, considering the operation of construction equipment. The LCA focused on the emission of greenhouse gases (GHGs) and the quantity of primary energy employed in the phases considered. It was concluded that the materials used in this study have similar mechanical behavior, and therefore the results of the design of the thicknesses of the asphalt overlay were close and consequently result in similar energy consumption and greenhouse gas emissions. Doi: 10.28991/CEJ-2022-08-07-012 Full Text: PDF
Behavior of Post-Tensioned Concrete Girders Subject to Partially Strand Damage and Strengthened by NSM-CFRP Composites
Authors: Jalil Abbas , Al‐Zuhairi Alaa Hussein
Published: September 2022

Studies on the flexural behavior of post-tensioned beams subjected to strand damage and strengthened with near-surface mounted (NSM) technique using carbon fiber-reinforced polymer (CFRP) are limited and fail to examine the effect of CFRP laminates on strand strain and strengthening efficiency systematically. Furthermore, a design approach for UPC structures in existing design guidelines for FRP strengthening techniques is lacking. Hence, the behavior of post-tensioned beams strengthened with NSM-CFRP laminates after partial strand damage is investigated in this study. The testing program consists of seven post-tensioned beams strengthened by NSM-CFRP laminates with three partial strand damage ratios (14.3% symmetrical damage, 14.3% asymmetric damage, and 28.6% symmetrical damage). The experimental results showed that the use of CFRP laminates significantly increases the flexural capacity by up to 17.4 to 20.4%, corresponding to a strand damage ratio of 14.3 and 28.6%, respectively, enhances the stiffness, and reduces strand strain by up to 15.8 to 22.2%. However, the flexural stiffness of strengthened beams during serviceability phases is critical as strand damage ratios increase. Additionally, semi-empirical equations were proposed to predict the actual strain of unbonded strands whilst considering the effects of CFRP laminates. The suggested equations provide accurate predictions with little variance. Doi: 10.28991/CEJ-2022-08-07-013 Full Text: PDF
Sustainability of Suburban Industrial Development through Place Attachment
Authors: Lu Liwei , Long Dingjiang , Chuang Yen-Ching , Pikhart Marcel , He Xiaoyan
Published: September 2022

This research uses urban space reconstruction as the entry point, discussing the characteristics of residents’ sense of place in Lingang new town, Shanghai, based on the method of factor analysis to divide the sense of place into place attachment, place identity, and place dependence. On the whole, residents’ sense of place in Lingang new town is at a common level, and the comprehensive score of residents’ sense of place in Lingang new town is "more than half". Meanwhile, place attachment is the highest, place dependence is the lowest, and place identity is in the middle. Therefore, the sense of place mainly depends on place attachment. Using an independent T test and variance analysis to explore the characteristics of the sense of place, this paper has found that age, income level, education level, household registration, and migration patterns have significantly different influences on the three dimensions of the sense of place. There is no difference in gender and the type of occupation, whether they are working in Lingang New Town or not. The research on the sense of place in suburban industrial development zones presents a new perspective for solving the social space problems in the development zone. Finally, this research suggests improving the construction of public facilities, paying more attention to youth groups’ sense of place, and enhancing the sense of belonging to the highly educated groups and high-income groups, as well as strengthening innovation and entrepreneurship cooperation between the new town and the main city. Doi: 10.28991/CEJ-2022-08-07-014 Full Text: PDF
Effective Use of Sacrificial Zinc Anode as a Suitable Repair Method for Severely Damaged RC Members Due to Chloride Attack
Authors: Astuti Pinta , Rafdinal Rahmita Sari , Yamamoto Daisuke , Andriamisaharimanana Volana , Hamada Hidenori
Published: September 2022

In many cases, the repair strategy by using sacrificial anodes for cathodic protection in real RC structures requires additional zinc anodes after several years due to the decreasing protective area. This experimental study evaluates the effectiveness of time lag application of sacrificial anode cathodic protection applied to RC beam specimens that deteriorated severely due to chloride attack. In the experiment, sacrificial anodes and cathodic protection (SACP) were applied to 41-year-old RC beam specimens exposed to natural marine environments in which the embedded steel bars were significantly corroded. The repair work was performed in three stages. Instant-off and rest potential tests of steel bars were conducted periodically to demonstrate the time-dependent depolarization value. In the first stage, a polymer-modified mortar as a patch repair material was cast to replace the concrete in the middle tensile part with small sacrificial anodes embedded in the mortar. After the protective current reaches an equilibrium state, the sacrificial anodes are disconnected from the steel bars for a year, defined as the second stage. During the one year in the second stage, the steel bar in the patch repair area remained passive, without any sign of corrosion. As for the third stage, additional sacrificial anodes were installed in the existing concrete part to protect the steel in it. From one year of observation after applying sacrificial anodes to old concrete parts, the time lag SACP application of both in patch and non-patch repair parts was clarified to be effective in stopping the corrosion of steel bar in both parts until 20–30 years based on the service life prediction. Doi: 10.28991/CEJ-2022-08-07-015 Full Text: PDF
Analysis of Heat Potential in Solar Panels for Thermoelectric Generators using ANSYS Software
Authors: Harsito Catur , Triyono Teguh , Roviyanto Eki
Published: September 2022

The growing demand for energy has an impact on the development of environmentally friendly renewable energy. The sun is energy that has the potential to be used as electrical energy through light energy and heat energy. Recently, research interest related to photovoltaic performance has increased. Several studies have investigated the effect of panel cooling on photovoltaic performance. In this study, the use of exergy solar panels is considered to improve performance by adding a thermoelectric system. Research work related to photovoltaic testing with thermoelectrics at low temperatures has not been carried out. Therefore, experimental methods to obtain temperature profiles and simulation methods to see the power potential generated from thermoelectrics have been carried out. The experimental method is carried out using mono-crystalline panels with type K sensors to retrieve temperature data and data acquisition as deviations from the current, voltage, and temperature results of the panel. The simulation model was carried out using the ANSYS software. Tests are carried out, taking into account the effect of back panel temperature on system performance. The results showed that the photovoltaic temperature fluctuated due to the influence of cloud cover, the highest photovoltaic temperature was 57°C, and the lowest temperature was 30°C. The maximum power produced by photovoltaic is 39.8W. It is then applied to the thermoelectric simulation based on the highest temperature, and the maximum power value is 1673.4 mW. This photovoltaic-thermoelectric generator system produces a 4.2% increase in power value over conventional photovoltaic systems. The findings in this study can be used as a reference for all types of low-temperature photovoltaic-thermoelectric systems. Doi: 10.28991/CEJ-2022-08-07-02 Full Text: PDF
Field and Satellite Images-Based Investigation of Rivers Morphological Aspects
Authors: Nama Ala Hassan , Abbas Ali Sadiq , Maatooq Jaafar S.
Published: September 2022

Worldwide and especially in less developed regions, process-based evaluations and/or geomorphological information on large-scale rivers are still scarce. Such investigation become of ‎urgent ‎need due to the climate change and expected occurrence of extreme floods and drought which ‎may ‎threaten the safety of nearby and downstream cities, especially in regions that are highly sensitive and ‎affected by climatic changes. The Tigris River, in Iraq, is one such river that has undergone significant alteration to its flow and morphologic aspects due to climate change and the construction of many dams. However, morphology and its change for many reaches of this river are still uninvestigated. To this end, field and satellite-based investigations into the morphology of a reach located between Makhool District and Tikrit City have been conducted. In addition to the cross-sectional survey-based determination of the reach geometrical aspects, a sinuosity indices-based evaluation of the reach planform was implemented, utilizing a satellite indices-based approach. Furthermore, the characteristics of bed material were identified through field sampling. Investigation results show that the reach has a steep bed slope and many islands of low altitude with an elongated shape. The reach has a mild sinuosity with alternating bars. The dominant particle sizes of the bed material are coarse and medium gravel with a dominant particle shape of disc particles. Moreover, the satellite-based change detection indicated the fading out and disappearance of some secondary channels, the growth of many islands, and the movement of some bends downstream. The percentage of changing parts for the period 1975–2021 is 14%. Most of this change, 11%, occurred after the construction of the Mosul Dam. This reveals the sensitivity of reach morphology to flow change due to the construction of dams. The conducted fieldwork and the applied methodology contribute to supporting efforts to add knowledge worldwide about uninvestigated rivers. Doi: 10.28991/CEJ-2022-08-07-03 Full Text: PDF
A Computational Approach to a Mathematical Model of Climate Change Using Heat Sources and Diffusion
Authors: Arif Muhammad Shoaib , Abodayeh Kamaleldin , Nawaz Yasir
Published: September 2022

The present work aims to extend the climate change energy balance models using a heat source. An ordinary differential equations (ODEs) model is extended to a partial differential equations (PDEs) model using the effects of diffusion over the spatial variable. In addition, numerical schemes are presented using the Taylor series expansions. For the climate change model in the form of ODEs, a comparison of the presented scheme is made with the existing Trapezoidal method. It is found that the presented scheme converges faster than the existing scheme. Also, the proposed scheme provides fewer errors than the existing scheme. The PDEs model is also solved with the presented scheme, and the results are displayed in the form of different graphs. The impact of the climate feedback parameter, the heat uptake parameter of the deep ocean, and the heat source parameter on global mean surface temperature and deep ocean temperature is also portrayed. In addition, these recently developed techniques exhibit a high level of predictability. Doi: 10.28991/CEJ-2022-08-07-04 Full Text: PDF
Ceramic Waste Powder as a Partial Substitute of Fly Ash for Geopolymer Concrete Cured at Ambient Temperature
Authors: Bhavsar Jay K. , Panchal Vijay
Published: September 2022

The growth of the construction industry has expanded the demand for ceramic building products such as ceramic tiles, which constitute essential building materials. Nonetheless, a huge quantity of waste powder is produced during the polishing of ceramic tiles. The disposal of ceramic waste powder is a key environmental concern that needs to be properly addressed. The purpose of this research is to evaluate the potential of recycling ceramic waste powder as a geopolymer binder. The main objective consists of exploring the impacts of two types of ceramic waste powder (vitrified tiles and wall tiles) on the partial substitution of fly ash in geopolymer concrete. For this, concrete was prepared under ambient conditions without oven curing. Slump, compressive strength, split tensile strength, and modulus of elasticity tests were performed to measure the workability and the mechanical properties of the geopolymer concrete. Its durability was evaluated through water absorption and sorptivity tests. The microstructural behavior was investigated using scanning electron microscopy and X-ray diffraction measurements. The investigation revealed that a 15% partial replacement of fly ash by wall-tile ceramic waste powder in geopolymer concrete gave similar compressive strength, a 3% increase in tensile strength, and a 7% improvement in the modulus of elasticity. Partial replacement of fly ash with 15% vitrified ceramic waste powder reduced sorptivity and improved the microstructure of geopolymer concrete. The findings revealed that ceramic waste powder can be used to replace 10–15% of the fly ash in M35 grade structural geopolymer concrete, which can be cured under ambient conditions. Doi: 10.28991/CEJ-2022-08-07-05 Full Text: PDF