bluuebunny/crossref_metadata_2025 huggingface dataset:
THE TRAVEL TIME PERFOMANCE ANALYSIS OF THE COMMUTER LINE TRAIN (KRL) (CASE STUDY: THE COMMUTER LINE TRAIN BLUE LINE CORRIDOR, BEKASI - JAKARTA KOTA)
Authors: Pangestu Bayu Aji , Soerjatmodjo Irnanda Satya , Darsono Noviandi Putra
Published: January 2023

On the commuter line trains (the KRL), the Bekasi-Jakarta City Blue Line corridor has a buildup of passengers so that it can reduce travel time. Based on the regulation of the Minister of Transportation No. 63 of 2019 on Minimum Service Standards for Transportation of People by Train, the maximum delay tolerance for urban trains is 15 minutes from the total scheduled travel time. The method used is the depiction of working charts and calculations of statistical analysis with standard deviation in SPSS application version 26. The difference in the comparison of scheduled travel times with those in the field is determined by using Microsoft Excel for Windows version 2015. The performance of Blue Line routes (the KRL) was reviewed based on travel time using the SPSS (Statistical Package for the Social Sciences) analysis tool version 26. The standard deviation results using the SPSS KA 1341 analysis tool have a higher deviation standard result of 10.82, which means that the train has a higher travel time delay than the train of PT Kereta Commuter Indonesia (KCI), which experienced an average delay of 4 minutes. The cause of the delay consists of several factors, including the queue of passengers who want to get into the train and the fact that traffic on the blue line KRL route is congested. Because it has to alternate with intercity trains, and the KRL must wait.
NORMALIZATION ANALYSIS OF BUARAN RIVER USING THE HEC-RAS APPLICATION (THE BUKIT KENCANA RESIDENTIAL AREA TO JAKARTA CIKAMPEK TOLL)
Authors: Imamuddin Mohammad
Published: January 2023

The channel in the Buaran River area has a channel length of 5.32 km located in the Bukit Kencana Housing Area as the upstream of the Buaran River with the smallest cross-sectional width of 0.9 m and a height of 1 m and the border of the Jakarta Cikampek Toll Road as a downstream with a width of 2.2 m and a height of 3.6 m. one of the areas of the Buaran River which experienced quite severe flooding. This was due to changes or conversion of land functions which were originally water catchment areas to settlements. The large number of buildings that stand on the body of the river makes the current section of the Buaran River unable to function optimally in accommodating flood discharges, besides that there is no public awareness in protecting the environment which can be seen from the many piles of garbage in the body of the river. The purpose of this research is to find out how big the capacity of the existing Buaran cross-section is (starting from the Bukit Kencana Residential Area to the Jakarta Cikampek Toll Road) by modeling the existing cross-section using the help of the Hec-Rass application as well as recording and mapping locations that have the potential to flood. . One of the efforts that have been made by the government in controlling floods is by normalizing the river but in practice, the normalization of the Buaran River cannot be said to be running optimally. Based on hydrological calculations, the planned Q25 flood discharge is 16,307 m3/s. By using the help of the Hec-Ras application we can find out which river profiles need to be treated so that the handling of river normalization as an alternative to flood control can run optimally
Membranous Glomerulopathy with Light Chain Restriction
Authors:   Department Of Nephrology, University Hospital Gregorio Maranon, Lopez De Pablo Javier Carbayo
Published: January 2023

Membranous nephropathy is considered the main cause of idiopathic nephrotic syndrome in adults. Mostly caused from the deposition of polytypic immune complexes along the subepitelial slope of the glomerular basement membrane
Posterior Reversible Leukoencephalopathy Syndrome and Hypertensive Crisis Due to Obstructive Sleep Apnoea during Haemodialysis Sessions
Authors:   Departments Of Nephrology, Emergency And Pneumology, Fundació Salut Empordà, Sánchez Montserrat Picazo
Published: January 2023

We present the clinical case of a 33-year-old woman on haemodialysis who suffered a severe hypertensive crisis during the sessions. In one of them, she developed Posterior Reversible Leukoencephalopathy Syndrome (PRES)
Pregnancies In Post Kidney Transplantation About 10 Cases
Authors:   Departement Of Nephrology Hospital University Of Tizi- Ouzou, Algeria, H Hamouche
Published: January 2023

Patients with chronic renal failure have a very low fertility and high risk pregnancy due to hormonal and metabolic disorders secondary to uremia
Miedo a flotar en México durante el Gran Confinamiento, 2020-2021
Authors: Montiel Orozco Laura Lisset
Published: January 2023

En este documento se analiza la persistencia de la hipótesis del Miedo a la flotación, desarrollada por Guillermo Calvo y Carmen Reinhart, en México durante dos crisis: la crisis financiera del 2008-2009 y la más reciente denominada crisis del Gran Confinamiento, 2020-2021 (Reinhart, 2000; Calvo y Reinhart, 2000; 2002). Con base en esta hipótesis se demuestra que México a la postre de la inestabilidad generada por estas crisis experimenta un caso endémico de Miedo a flotar.
Conciliación en España: desarrollo legislativo y análisis de su escasa incidencia en los hombres
Authors: Crespo Jiménez Ana Sofía , Pérez-Alonso Alicia
Published: January 2023

En un momento histórico en el que el feminismo está a la orden del día, la conciliación masculina es un tema de vital importancia para poder alcanzar la igualdad de género.

Tras un repaso de la legislación en España respecto a la conciliación, se utilizará el path modeling como herramienta estadística para analizar los factores que pueden influir a los hombres para no conciliar en España a pesar de tener las facilidades para ello.
Due Diligence in the Implementation of the Sustainable Development Goals and the ESG Agenda: the Balance of Soft and "Hard" Regulations
Authors: Petrova Alina Viktorovna
Published: January 2023

The subject of the study is the due diligence of the company, which can manifest itself to it in corporate governance. Due diligence in corporate governance, considered in the context of the implementation of the sustainable development goals and the ESG agenda, differs significantly from the understanding adopted in Russia from the position of the highest courts in the field of detection and prevention of tax abuses. Both approaches, as well as the definition under consideration, are not normatively fixed, and the first, in accordance with world tradition and practice, is implemented through soft regulation. In an environment of uncertainty and risk diversification, there is a growing trend to make SDG and ESG prudence mandatory. In Russia, such a transition is being discussed, but there is no readiness for it, and references to European experience in the current conditions are problematic. The existing ones in this area have not yet been studied, which hinders the choice of ways and mechanisms for their regulation. The novelty of the study is to identify the need to monitor the effectiveness of soft regulation and the actual activities of Russian companies in the context of the SDGs and the ESG agenda.
The Problem of Volunteer Motivation in Volunteering Management: A Sociological View
Authors: Kruglova Marina Sergeevna , Kruglova Lorina Ermondovna , Shuvanov Igor' Borisovich , Shuvanova Viktoriya Petrovna
Published: January 2023

The article deals with the problems of analyzing the motivational component in the management systems of youth volunteering. The subject of the study is the totality of managerial relations that arise in the process of organizing the volunteer movement and the implementation of volunteer activities. The object of the study is the activities of volunteer, non-profit organizations. The problem lies in the possible outflow of volunteers after the first contact or event, without repeated or regular participation. It is important for managers and leaders of the voluntary sector to successfully involve young people in volunteer projects and develop their voluntary participation in the long term. The study of this issue will make it possible to form a holistic view of the significant aspects of the organization of the volunteer movement. The study is aimed at identifying existing approaches to motivating volunteers, finding the most effective ways to increase the level of volunteer motivation, developing tools to ensure a high level of motivation and involvement in projects of volunteer associations. To collect data on motivation in youth volunteering, the authors conducted a questionnaire survey, the participants of which were volunteers from Russian volunteer organizations based in higher educational institutions. The predominance of the non-material nature of the motivation of volunteers was revealed; a scale of motives was developed for testing volunteers and designing an individual route of volunteer experience in organizations. The unity and opposition of the types of volunteer participation in the concept of dual motivation of volunteers (altruism and selfishness) gives grounds for using a combined approach that takes into account various motives for participation.
Gambaran E-learning Readiness pada Mahasiswa Unika Atma Jaya selama Masa Pandemi COVID-19
Authors: Gabriella Carla Dominica , Purwanti Margaretha , Aisyah Aireen Rhammy Kinara
Published: January 2023

The Covid-19 pandemic has undoubtedly had quite a significant impact on many aspects of human society, including a students’ learning experiences. As of March 2020, in lieu of recent policies to mitigate the spread of Covid-19, all institutions in Indonesia have been required to do distance learning, including universities. This sudden change could possibly have an impact on the learning process on a student’s learning. Seeing as most universities use E-Learning as the preferred method of distance learning, this study aims to study the readiness of students to participate in E-Learning. This study uses a quantitative descriptive method to analyse the E-Learning Readiness (ELR) of Faculty of Psychology students from Unika Atma Jaya from batches 2018-2021. This study involves 180 participants aged 17-24. Analysis shows that generally students are ready to use E-Learning (ELR score = 3,5 where above 3,4 is considered ready, but not optimal), specifically in the dimensions Learner Control and Motivation For Learning. When further broken into two groups 2018-2019 (experienced face to face before pandemic) and 2020-2021 (E-Learning only), 2018-2019 students show a trend of having lesser readiness levels than their 2020-2021 peers. Even if according to t-score analysis shows no statistical difference between the overall ELR levels of students in batches 2018-2019 and 2020-2021, there are still differences in ELR scores when analysing individual dimensions, particularly the dimensions Computer Internet Self-Efficacy, Motivation For Learning, and Learner Control.
Hubungan Persepsi Dukungan Organisasi dengan Komitmen terhadap Organisasi Pada Pelaut di PT.X
Authors: Septyani Ni Made Senny Dwi , Sukmarani Sukmarani
Published: January 2023

The purpose of this study was to determine correlation between perceived organizational support with each dimension of organizational commitment, namely affective commitment, continuance commitment, and normative commitment to seafarers at PT.X. The hypothesis of this study is that there is a positive correlation between perceived organizational support and the affective commitment, continuance commitment and normative commitment to seafarers at PT.X. The method used in this research is correlational quantitative method. The subjects in this study were sailors at PT X with 47 participants. The technique of collecting participant data used is the proportionate stratified random sampling. The research instrument used the Survey Perceived Organizational Support (SPOS) scale and the Organizational Commitment Questionnaire (OCQ). The results of the Spearman's Correlation Coefficient correlation test show that there is no positive and significant correlation between perceived organizational support with affective commitment and continuance commitment, and there is a positive and significant correlation between perceived organizational support and normative commitment. The implication of this research is that companies can pay attention to and increase organizational support socially and emotionally in order to bring up the affective commitment, continuance commitment and normative commitment to seafarers in the company
Gambaran Subjective Well-Being pada Perempuan yang Mengalami Involuntary Childlessness dalam Keluarga Batak
Authors: Yosephine Saneth Aurelia , Wibawa Dhevy Setya
Published: January 2023

Women naturally supposed to be able to conceive and give birth to children. This perception puts pressure on women who experience involuntary childlessness. Cultural factors are one of the factors that plays a role in shaping subjective well-being in women who experience involuntary childlessness from the Batak tribe. The pressure that is felt not only comes from herself, but also from her family, because of the strength of the Hagabeon value. The amount of pressure felt by the woman also had an impact on the evaluation of her life. This qualitative study uses a semi-structured interview technique to see the description of the subjective well-being of women who experience involuntary childlessness in a Batak family based on Diener's Subjective Well-Being theory. The results show that women with involuntary childlessness has a tendency to have less fine subjective well-being. The pressure due to the appreciation of the Hagabeon values, or the support provided by the family, is a factor that plays a role in the differences in the subjective well-being among the participants. In addition, physical and occupational health factors also play a role in the formation of a subjective well-being.
HUBUNGAN STRES AKADEMIK DAN PSYCHOLOGICAL CAPITAL MAHASISWA SEMESTER ANTARA FAKULTAS PSIKOLOGI UNIKA ATMA JAYA JAKARTA
Authors: Laurentia Stephanie , Ronauli Puji Tania
Published: January 2023

In order to succeed the implementation of the policy of Merdeka Belajar Kampus Merdeka in TheFaculty of Psychology Unika Atma Jaya, student class of 2019 and 2020 are required to take theshort semester. In fact, the short semester aims to give the benefit both students and universitiesso that the curriculum transformation could be well applied. However, the Short Semester isperceived as a tough academic requirement for students. Many students feel pressured to take theshort semester, especially during this pandemic. Therefore, to deal with academic stress, studentsneed to optimize their psychological capital so that they are able to deal with the learningdifficulties. Currently, the psychological capital approach is being developed in education andlearning. The aim of this study is to examine the relationship between academic stress andpsychological capital in semester students between FPUAJ. This study uses a quantitativecorrelation method to analyse the correlation between academic stress and psychological capitalof short semester students in Unika Atma Jaya. This study involves 109 participants (65participants from class of 2019 and 44 participants from class of 2020). The researcher used theStudent-Life Stress Inventory and PsyCap Questionnaire that is adapted to the study context andthrough the pilot study process. The results of the study shows that academic stress andpsychological capital have a significant negative correlation. These findings show that the higherthe psychological capital of students, the lower their academic stress level will be. Resiliency inpsychological capital has also been proven to be the dimension that has the biggest significantnegative correlation with academic stress than other psychological capital dimensions
HUBUNGAN ANTARA WAKTU KERJA DAN KETERLIBATAN AYAH
Authors: Soetopo Gabriella Alika Rayna , Partasari Wieka Dyah
Published: January 2023

Paternal involvement is necessary for children ages 6-12 to thrive optimally. On the other hand,fathers face a challenge of having limited time to spend with their children as a result of being abreadwinner to fulfil the family’s needs. This research aimed to identify the relationship betweenthe time fathers spent at work and the paternal involvement of fathers with children ages 6-12years old. This was quantitative research with a correlational design. There were 50 fathers withchildren between the ages of 6-12, currently working, and living in Jabodetabek as participants.Father’s paternal involvement was measured using the Paternal Involvement Questionnaire. Thetime fathers spent working were collected using a time sheet. Participants recorded their dailyactivities within a 30-minute interval for 7 days. The hypothesis was tested using the Spearmancorrelation test which showed that there was no significant relationship between the time fathersspent at work and the paternal involvement of fathers with children ages 6-12 years old. This resultindicated that even if fathers spent more time working, this doesn’t mean they have lower paternalinvolvement than fathers who spent less time working. For future research, it is recommended toinvestigate further the relationship between father involvement, father's location of work, father'sassistance in taking care of children, and maternal gatekeeping.
Acidentes e complicações em cirurgia oral menor
Authors: Guimarães Larissa Alves , Santos Fabrício Silva , Guedes Antonio Carlos Lourenço , Neris Karina Pereira , Rocha Isabela Lopes , Santos Vinícius do Amaral , Oliveira Vinícius Soares , Neris Kauane Pereira
Published: January 2023

Objetivo: Ampliar o conhecimento a respeito da anatomia na área odontológica, focando em acidentes e complicações presentes na cirurgia oral menor. Revisão bibliográfica: O cirurgião-Dentista deve ter um amplo conhecimento de toda a anatomia facial, pois esta área apresenta muitas minucias, portanto se faz necessário a educação continuada em todas as áreas da saúde e o constante treinamento para que se possa evitar acidentes e complicações na cirurgia oral menor. A literatura apresenta o seio maxilar, artéria palatina maior, artéria nasopalatina, nervo alveolar inferior, nervo bucal e nervo mentual como as principais estruturas acometidas. Considerações finais: Como prevenção, se destaca o correto planejamento como uma excelente arma para tais acidentes e complicações, além do conhecimento adequado de todas as estruturas anatômicas, exames de imagem como radiografias panorâmicas e tomografias computadorizadas, quando solicitadas de forma correta são indispensáveis no planejamento cirúrgico.
Endoscopic endonasal clipping of a medial paraclinoid aneurysm with roadmapping assistance: Two-dimensional operative video
Authors: Sangrador-Deitos Marcos V. , Lopez-Valencia German , Guinto-Nishimura Gerardo Y. , Eguiluz-Melendez Aldo G. , Romano-Feinholz Samuel , Gomez-Amador Juan L.
Published: January 2023

Background:

Advancements in endoscopic endonasal approaches (EEAs) allow the treatment of a wide variety of diseases including vascular pathology.

Case Description:

A 56-year-old woman presented with thunderclap headache due to two aneurysms: Communicating segment of left internal carotid artery (ICA) and medial paraclinoid (Baramii IIIB). The ICA aneurysm was clipped through a conventional transcranial approach; the paraclinoid aneurysm was successfully clipped using an EEA guided with roadmapping assistance.

Conclusion:

EEA is useful to treat aneurysms in selected cases and the use of adjuvant angiographical techniques such as roadmapping or proximal balloon control allow excellent control during the procedure.
Virtual preoperative planning and 3D tumoral reconstruction with Horos open-source software
Authors: Pipolo Derek O. , Luzzi Sabino , Baldoncini Matias , Di Pietrantonio Andres , Brennan Walter , Asmus Humberto , Miyara Santiago J. , Lucifero Alice Giotta , Campero Alvaro
Published: January 2023

Background:

Presurgical three-dimensional (3D) reconstructions allow spatial localization of cerebral lesions and their relationship with adjacent anatomical structures for optimal surgical resolution. The purpose of the present article is to present a method of virtual preoperative planning aiming to enhance 3D comprehension of neurosurgical pathologies using free DICOM image viewers.

Case Description:

We describe the virtual presurgical planning of a 61-year-old female presenting a cerebral tumor. 3D reconstructions were created with the “Horos®” Digital Imaging and Communications in Medicine viewer, utilizing images obtained from contrast-enhanced brain magnetic resonance imaging and computed tomography. The tumor and adjacent relevant structures were identified and delimited. A sequential virtual simulation of the surgical stages for the approach was performed with the identification of local gyral and vascular patterns of the cerebral surface for posterior intraoperative recognition. Through virtual simulation, an optimal approach was gained. Accurate localization and complete removal of the lesion were achieved during the surgical procedure. Virtual presurgical planning with open-source software can be utilized for supratentorial pathologies in both urgent and elective cases. Virtual recognition of vascular and cerebral gyral patterns is helpful reference points for intraoperative localization of lesions lacking cortical expression, allowing less invasive corticotomies.

Conclusion:

Digital manipulation of cerebral structures can increase anatomical comprehension of neurosurgical lesions to be treated. 3D interpretation of neurosurgical pathologies and adjacent anatomical structures is essential for developing an effective and safe surgical approach. The described technique is a feasible and accessible option for presurgical planning.
Endovascular treatment of a ruptured blister-like aneurysm at an azygos anterior cerebral artery: A case report and review of the literature
Authors: Matsumoto Shirabe , Fumoto Noriyuki , Tagawa Masahiko , Tanaka Hideo
Published: January 2023

Background:

Endovascular treatment for a ruptured blister-like aneurysm (BLA) has recently become a hopeful approach. BLAs are usually located on the dorsal wall of the internal carotid artery, whereas one located on the azygos anterior cerebral artery (ACA) is so rare, it has never been reported. We report a case of a ruptured BLA arising at the distal bifurcation of an azygos ACA treated by stent-assisted coil embolization.

Case Description:

A 73-year-old woman presented with a disturbance of consciousness. Computed tomography showed diffuse subarachnoid hemorrhage, which was observed to be particularly dense in the interhemispheric fissure. Three-dimensional rotation angiography showed a tiny and conical bulge on the distal bifurcation of the azygos trunk. Follow-up digital subtraction angiography performed on day 4 showed enlargement of the aneurysm, and a BLA arising at the azygos bifurcation was diagnosed. Stent-assisted coiling (SAC) was performed using a low-profile visualized intraluminal support (LVIS) Jr. stent, which was implanted from the left pericallosal artery to the azygos trunk. Follow-up angiography showed that the aneurysm thrombosed gradually and reached complete occlusion 90 days after onset.

Conclusion:

SAC for a BLA at the distal bifurcation of an azygos ACA might be an effective treatment option leading to early complete occlusion, but thrombus formation as an intraoperative complication should be noted in the BLA at the bifurcation or the peripheral artery, as in the present case.
Shadow State In The Management Of Shock Market In Marpoyan Damai Dictrict, Pekanbaru City (Study In Shock Market Pahlawan Kerja In Marpoyan Damai District)
Authors: Yuza Ahmad Fitra , Budiawan Mochamad Andre
Published: January 2023

This research examines Shadows state in Management of shock Market. Marpoyan Damai District, Pekanbaru City (Study in the Shock Market Heroes Work, Marpoyan Damai District). This study aims to determine the Shadow Statein the Management of the Shock Market in Marpoyan Damai District, Pekanbaru City (Study in the Shock Market in Heroes of Work, Marpoyan Damai District). This type of research, which is located in the shock market of Work Heroes,Marpoyan Peace districts, is descriptive with a qualitative method, namely research that seeks to describe the object or subject under study in accordance with what it is, and to explain variables and indicators. The results of the research on Shadow Government in the Management of the Shock Market in Marpoyan Peace District, Pekanbaru City (Study in the Shock Market Hero of Work, Marpoyan Damai District) were analyzed through three indicator indicators. the first is Social Control or social control of the Pekanbaru City Government, the Marpoyan Damai District Government, and the Maharatu Village Government have carried out social control through curbing the management of the shock market but for the management of the shock market itself, the actors involved are local strongmen who have influential authority in the environment. people who do have the land to establish or organize the shocked market. Both Defense Strategies found that the market shock persisted even though it did not have an official permit because the market was able to meet the basic needs that were really needed by the community so that people prefer to make buying and selling transactionsin the shock market rather than the official market managed by the Pekanbaru City Government. Third Development of Local Existence, it is found that the local government is inferior to the existence of a local strongman, it can be seen through the ongoing market activity even though it does not have an official license or is included in an illegal market.
Role Of The Village Hade In Maintaining Peace And Order In Subdistrict Of Sorek Satu Subdistrict Pangkalan Kuras District Of Pelalawan
Authors: Yuza Ahmad Fitra , Arnita Fitri
Published: January 2023

This study aims to determine the role of the village head in the maintenance of peace and order in Sorek Satu Village, Pangkalan Kuras District, Pelalawan Re- agency, this is a manifestation of fostering the life of the village community so that they can live more safely, orderly, peacefully, and peacefully. this type of re- search that the researcher uses in this research is a qualitative research method with a descriptive approach, namely research by trying to describe an object or subject that is meticulous in accordance with what it is and explains about variables bles and indicators in this case are norms, individuals as organizations in society, and individuals in the social structure of society. The types and techniques of data collection used consisted of observations, interviews and documentation. Based on the results of the research on the role of the village head in the maintenance of peace and order in the Sorek Satu Village, Pangkalan Kuras District, Pelalawan Regency, it can be concluded that it is less implemented or has less role. The ob- staff to the Lurah in maintaining peace and order in the community in Sorek One Village is the lack of coordination, lack of communication, and low com- munity participation.
Visual and semi-automated interpretation methods for urban flood detection using SAR Sentinel-1A image: study case in North Aceh Regency, Indonesia
Authors: Ayyasy Muhammad Fadhil , . Akhyar
Published: January 2023

Flood is a natural disaster when causes damage and loss, especially in urban areas that are inhabited by many people and have many properties. The goal of this study is to map rapidly the flooded areas in North Aceh district on January, 5 2022 using multi-temporal SAR Sentinel-1A images through visual interpretation and semi-automated interpretation methods including thresholding and support vector machine (SVM). Visual interpretation relied on multi-polarization image of VH-VV with median filters of 3x3 and 5x5. This study produced the flooded area maps from three methods used with an area of each method: visual interpretation (422.86 ha), thresholding (791.22 ha) and SVM (1084.76 ha). According to the comparison with the result generated from visual interpretation using Planetscope-3A, SVM method has the similar result in the flooded areas with an area of 1001.52 ha. This study also analysed impact of flood event against land cover referring to Sentinel-2 10-Meter Land Use/Land Cover of ESRI and showed that class of cultivated crops is most affected. Results show that this study can be very helpful in damage and loss assessment of flood event and can be reference for urban planning management in order to face the climate change.
Trend Analysis of Rain Precipitation for Indian States using 1901-2020 IMD dataset
Authors: Ramanath K. , Sivagami M. , Radha P. , Balaji V. , Shyamala L.
Published: January 2023

This study explores the greatest yearly precipitation pattern utilizing the Mann-Kendall test and Sen’s slope strategy and assesses the importance of variability utilizing precipitation of all Indian weather stations followed by spectral analysis. The information of these weather conditions stations from 1901 to 2020 was utilized. Original Mann-Kendall test, Modified Mann-Kendall test using Pre-Whitening method, Correlated Seasonal Mann-Kendall test and Sen’s slope test were applied to identify homogeneity in the information and detected the behaviour of the signal by using spectral analysis. Besides, the critical negative pattern was recorded for overall annual precipitation in some of the regions of North India. In view of the discoveries of progress identification, the most probable year of progress recognition happened principally after 1960 for a huge part of rainfall stations. The rising precipitation pattern was seen between the tenure 1901-1970 while a huge decay in precipitation was seen after 1980. The outcomes from this pattern re-analysis information show that expanding or diminishing precipitation convective rate raised low effect and insufficient in an upward direction coordinated dissimilarity. Discoveries of the review consider the availability of rainfall assets and expansion later on water interest. Also, the resultant spectral signal shows a high peak at Yunnan which is located in Kerala.
Synthesis, characterization and microbiological screening of some transition metal complexes with nitrogen containing macrocyclic ligand
Authors: Khan Shamshad Ahmad , Singh Kamlesh Kumar , Khatoon Jahan Ara
Published: January 2023

A novel macrocyclic Schiff base ligand 1,4,8,11-tetraaza-2,3,9,10-tetramethyl cyclotetradeca-1,3,8,10-tetraene was synthesized by condensation between butane-2,3-dione and propane-1,3-diamine in an alcoholic medium. The complexes of Co(II), Ni(II), Cu(II) and Zn(II) with Schiff base have been prepared from metal salts in an alcoholic medium. The synthesized Schiff base and its metal complexes are characterized by elemental analysis, molar conductance measurements, magnetic susceptibility, FTIR and electronic absorption spectral data. The higher molar conductance values of these metal complexes show their electrolytic nature. The Schiff base behaves as tetradentate ligand. The general molecular formula of the metal complexes has been found to be [M(L)(X)2] where M= Co(II), Ni(II), Cu(II) and Zn(II) , L=Schiff base and X= water, chlorine and ethanol . Thus, on the basis of elemental analysis and spectral studies octahedral geometry was assigned to metal complexes. The synthesized metal complexes showed more antimicrobial activity than free Schiff base ligand.
Synthesis of Novel 4-(3-nitro-2H-chromen-2-yl)-1,3-diphenyl-1H-pyrazole analogues
Authors: Veeranki Krishna Chaitanya , Pochampally Jalapathi , Maroju Ravi Chandar , Thumma Vishnu
Published: January 2023

In this study, we report the synthesis of a library of new 4-(3-nitro-2H-chromen-2-yl)-1,3-diphenyl-1H-pyrazol e analogues. Condensation of pyrazole carbaldehyde precursor with nitromethane yielded (E)-4-(2-nitrovinyl)-1,3-diphenyl-1H-pyrazole intermediate. This intermediate upon intermolecular cyclization with substituted salicylaldehydes individually, produced 4-(3-nitro-2H-chromen-2-yl)-1,3-diphenyl-1H-pyrazole analogues. The structures of compounds were confirmed by the interpretation of 1H-NMR, 13C-NMR and Mass spectral analysis.
In situ precipitation and characterization of nano zinc oxide in different polymeric media and photoluminescent properties
Authors: John Saji K. , Benjamin Siny G.
Published: January 2023

Zinc oxide (ZnO) nanoparticles were prepared using zinc chloride and ammonium hydroxide with proper concentration in different polymeric mediums by in situ precipitation method. The polymeric mediums used were chitosan, starch and polyvinylalcohol (PVA). The structural properties of the synthesized ZnO nanoparticles have been confirmed using the Scanning Electron Micrographs. The crystallinity and particle size of the nano particles were also determined. From the surface morphology, it is clear that the prepared ZnO is nano in nature and the shape of ZnO changes with respect to the medium of precipitation. The ZnO particles obtained from chitosan medium exhibit cuboidal shape while those obtained from starch have cylindrical shape and coral shape from PVA medium. Photoluminescence studies of the sample with three different media were also studied.
Triterpenoids from Lansium domesticum Corr cv. piedjietan (Meliaceae) and their Antifeedant Activity against Epilachna vigintioctopunctata Larvae
Authors: Mayanti Tri , . Darwati , Julaeha Euis , Harneti Desi , . Nurlelasari
Published: January 2023

In this study, we describe the isolation and structure elucidation of three triterpenoids (1) lansioside C, (2) 3-oxo-24-cycloarten-21-oic acid and (3) α, γ- onoceradienedione from the seeds, the leaves and the fruit peels of L. domesticum cv piedjietan Hasskl., respectively. The chemical structures of compound 1, 2 and 3 were identified with spectroscopic data. These compounds (1-3) had been reported from L. domesticum cv piedjietan Hasskl. Antifeedant activities of compounds 1, 2 and 3 (1% w/v) were evaluated using choice method against the fourth instar larvae of Epilachna vigintioctopunctata and showed activity of 65%, 43% and 53% respectively.
Preparation of barium ferrate from mill scale and degradation study of aqueous Eriochrome black – T
Authors: . Manisha , Dadhich Anima Sunil , Sen Anik
Published: January 2023

This present study involves the utilization of mill scale, an iron rich steel industry waste, to synthesize barium ferrate. Ferrate with iron in +(VI) oxidation state is a green chemical with promising oxidation, disinfection and coagulation properties. The X-Ray diffraction(XRD) analysis of mill scale indicates the presence of iron in three forms hematite, magnetite and wustite. Mill scale was dissolved in concentrated HCl. The metallic composition of dissolved mill scale was determined by Inductively Couple Plasma Mass Spectroscopy(ICP-MS). Barium ferrate was synthesized using the dissolved mill scale by the wet oxidation method. The resulting crude ferrate was washed with different organic solvents to remove the impurities. The product thus obtained was analyzed by chromite method and characterized by Fourier Transform Infrared Spectroscopy(FTIR). Degradation of aqueous Eriochrome Black – T(EBT) with barium ferrate was studied at different pH, time and concentration. The degradation of the dye was monitored by UV-Visible spectroscopy and chemical oxygen demand. The degradation products of the aqueous EBT were characterized by Gas Chromatography-Mass Spectroscopy(GC-MS) and Proton Nuclear Magnetic Resonance (1H-NMR). Computational studies were performed to compare the stability of barium ferrate with that of potassium ferrate. The 1H-NMR calculations were performed to compare the degradation products obtained experimentally.
Green synthesis of magnesium oxide nanoparticles: characterisation for sonocatalytic ability to remove Alizarin Red S dye in aqueous solution
Authors: Sangu V. , Raja Rajeswari C. , Shenbagam K. , Sowmiya N.
Published: January 2023

In this present work, MgO nanoparticles have been successfully synthesized by using Tribulus Terrestris leaf extract and were characterized by UV-Vis spectrophotometer. Dispersity and surface morphology were analyzed by dynamic light scattering and scanning electron microscope (SEM). Crystal nature and purity of the MgO nanoparticles were analyzed using X-ray diffraction analysis (XRD) and energy dispersive X-ray analysis (EDAX). FTIR analysis showed functional groups present in the phytochemicals of Tribulus Terrestris plant extract responsible for reduction and stabilization of MgO nanoparticles. The sonocatalytic efficiency of MgO nanoparticles was examined by degrading Alizarin Red S (ARS) under ultrasonic sound irradiation. Green synthesized MgO nanoparticles effectively degraded the dye nearly 95% within 5 hrs. of exposer time.
COVID-19: Attacks the 1-Beta Chain of Hemoglobin to Disrupt Respiratory Function and Escape Immunity by Capsid-Like System
Authors: liu wenzhong , li hualan
Published: January 2023

The genetic recombination of the SARs-CoV-2 virus in bats may result in behaviors comparable to those of certain RNA viruses. This cross-activity helps explain SARs-CoV-2's strange respiratory symptoms and immune evasion abilities. In this present study, the biological roles of SARs-CoV-2 proteins were investigated utilizing bioinformatic techniques involving the search for conserved domains. According to the study, the S and ORF3a proteins of SARs-CoV-2 possess picornavirus/calicivirus capsid domains, can bind hemoglobin, heme, and porphyrin. Both Arg134 of ORF3a and Cys44 of E are iron-binding sites for heme. The ORF3a protein has a region that converts heme into iron and porphyrin. In addition to chitin and polyphenol binding domains, the S protein also contains hemocyanin and phenoloxidase-like domains. The S protein constructs Fe-polyphenol complexes to link the red blood cell membrane, allowing SARs-CoV-2 to hitch a ride on red blood cells for fast delivery to target organs. This type of capsid-like vector delays the immune system but does not significantly alter the function of red blood cells to transport oxygen. Due to the distortion of the cell membrane, red blood cells with an excess of viral particles release hemoglobin to harm the virus. The wbl domains of the S protein respond to nitration, and then phenoloxidase domains oxidize polyphenols, allowing the virus to shed from the red blood cell membrane. ORF3a also attack 1-beta chain of hemoglobin; however, the majority of hemoglobin may retain its native structure. Patients will have variable degrees of respiratory distress and coagulation symptoms, but the hemocyanin domains of the S protein can improve a patient's respiratory status by transporting oxygen.
Cyclopropylcarbinyl-to-homoallyl carbocation equilibria influence the stereospecificity in the nucleophilic substitution of cyclopropylcarbinols
Authors: Larmore Sean , Champagne Pier Alexandre
Published: January 2023

The synthesis of quaternary homoallylic halides and trichloroacetates from cyclopropylcarbinols, as reported by Marek in 2020 (J. Am. Chem. Soc. 2020, 142, 5543-5548), is one of the few reported examples of stereospecific nucleophilic substitution involving chiral bridged carbocations. However, for the phenyl-substituted substrates the stereoselectivity of the reaction is poor and a mixture of diastereomers is obtained. In order to understand the nature of the intermediates involved in this transformation and explain the loss of selectivity for certain substrates, we have performed a Density Functional Theory investigation of the reaction mechanism at the DLPNO-CCSD(T)/Def2TZVPP level of theory. Our results indicate that cyclopropylcarbinyl cations are stable intermediates in this reaction, while bicyclobutonium structures are high-energy transition structures and as such are not involved, regardless of the substitution pattern on the substrate. Instead, multiple rearrangement pathways of cyclopropylcarbinyl cations have been located, including rotations around their π-bonds and ring openings to homoallylic cations. Importantly, the relative energies of these homoallylic cations and of the activation barriers to reach them are correlated to the nature of the substituents. While direct nucleophilic attack on the chiral cyclopropylcarbinyl cation is kinetically favored for most systems, the rearrangements become competitive with nucleophilic attack for the phenyl-substituted systems, leading to a loss of selectivity through a mixture of rearranged carbocation intermediates. As such, it appears that stereospecific reactions of chiral cyclopropylcarbinyl cations depend on the ability of these cations to access homoallylic structures, from which selectivity is not guaranteed.
Long Aliphatic Chain Derivatives of Trigonal Lanthanide Complexes
Authors: Zhou Yiwei , Buch Christian Dirk , Hansen Steen Hansgaard , Piligkos Stergios
Published: January 2023

The trigonal lanthanide complexes LnL (H3L = tris(((3-formyl-5-methylsalicylidene)amino)ethyl)amine) contain three pending aldehyde groups and are known to react with primary amines. Reacting LnL (Ln = Yb, Lu) with 1-octadecylamine yields the novel aliphatic lanthanide complexes LnL18 (H3L18 = tris(((3-(1-octadecylimine)-5-methylsalicylidene)amino)ethyl)amine) where the three aldehyde groups are transformed to 1-octadecylimine groups. Herein the syntheses, structural characterisation and magnetic properties of LnL18 are presented. The crystal structure of YbL18 shows that the reaction of YbL with 1-octadecylamine leads to only very subtle perturbations in the first coordination sphere of YbIII, with the YbIII ion retaining its heptacoordination and similar bond lengths and angles to the ligand. The three octadecyl chains in each complex were found to direct crystal packing into lipophilic arrays of van-der-Waals interaction-driven hydrocarbon stacking. The static magnetic properties of YbL18 were compared to those of the non-derivatised complex YbL. The energy level splitting of the 2F7/2 ground multiplet was found, by emission spectroscopy, to be very similar between the derivatised and non-derivatised complexes. A.c. magnetic susceptibility measurements on YbL18 and YbL diluted at 5 % into the diamagnetic hosts LuL18 and LuL, respectively, revealed that the spin-lattice relaxation of both complexes is governed by a low temperature direct process and a high temperature Raman process. In the high temperature regime, the derivatised complex was also found to have faster spin-lattice relaxation, which is likely due to the increased number of phonons in the octadecyl chains.
Monolithic light concentration by core-shell TiO2 nanostructures templated by monodisperse polymer colloidal monolayers
Authors: Cherry Rachel , Muhanga Joseph Joel , Mehrabi Hamed , Conlin Samuel , Coridan Robert
Published: January 2023

Nanostructured dielectric overlayers can be used to increase light absorption in nanometer-thin films used for various optoelectronic applications. Here, the self-assembly of a close-packed monolayer of polystyrene nanospheres is used to template a core-shell polystyrene-TiO2 light-concentrating monolithic structure. This is enabled by the growth of TiO2 at temperatures below the polystyrene glass-transition temperature via atomic layer deposition. The result is a monolithic, tailorable nanostructured overlayer fabricated by simple chemical methods. The design of this monolith can be tailored to generate significant absorption increases in thin film light absorbers. Finite-difference, time domain simulations are used to design polystyrene-TiO2 core-shell monoliths that maximize light absorption in a 40 nm GaAs-on-Si substrate as a model for a photoconductive antenna THz emitter. An optimized core-shell monolith structure generated a greater than 60-fold increase of light absorption at a single wavelength in the GaAs layer of the model device.
Direct 4D Observations of Electrochemically Induced Intergranular Cracking in NMC811 Particles
Authors: Parks Huw C. W. , Boyce Adam M. , Wade Aaron , Heenan Thomas M. M. , Tan Chun , Martínez-Pañeda Emilio , Shearing Paul R. , Brett Dan J. L. , Jervis Rhodri
Published: January 2023

Establishing the nature of crack formation is paramount to understanding the degradation modes that govern decline in battery performance. Cracking has several possible origins; however, it can be classified in two general cases: mechanically induced, during manufacturing, or electrochemically induced, during operation. Accurate and repeatable tracking of operational cracking without the convolution of pre-existing cracks is highly challenging; observing these features requires the highest resolutions possible for 3D imaging techniques, necessitating very small sample geometry, while also achieving realistic electrochemical performance. Here, we present a technique in which particle cracking can be completely attributed to electrochemical stimulation via a pseudo in-situ laboratory X-ray nano computed tomography (CT) technique. Observed upon electrochemical delithiation of NMC811, was significant cracking within the core of secondary particles which propagated radially. We also noted that contrary to crystallographic data, which suggests the unit cell volume reduces upon charging, significant volume expansion of the secondary particle occurred.
Cation disorder dominates the defect chemistry of high-voltage LiMn1.5Ni0.5O4 (LMNO) spinel cathodes
Authors: Cen Jiayi , Zhu Bonan , Kavanagh Seán , Squires Alexander , Scanlon David
Published: January 2023

High-voltage spinel LiMn1.5Ni0.5O4 (LMNO) can exist in a Mn/Ni ordered P4_332 or disordered Fd-3m arrangement with a majority of literature studies reporting improved electrochemical performance for the disordered phase. Through modifying synthesis conditions, the Mn/Ni ordering can be tuned, however oxygen and Mn3+ stoichiometries are also affected, making it difficult to decouple these responses and optimise performance. Here, we investigate all intrinsic defects in P4_332 LMNO under various growth conditions, using density functional theory (DFT) calculations. We find that the majority of defects are deep and associated with small polarons (Mn3+, Mn2+ and Ni3+) formation. The tendency for cation disorder can be explained by the low formation energy of the antisite defects and their stoichiometric complexes. The intrinsic Fermi level of LMNO varies from moderately n-type under oxygen-poor conditions to weakly p-type under oxygen-rich conditions. Our work explains experimental observations (e.g. the Mn/Ni disorder) and provides guidelines for defect-controlled synthesis.
Chitosan/PVA/Starch ternary film with Ilex paraguariensis hydroalcoholic extract as antimicrobial active package for chilly beef
Authors: Stefani Ricardo , Bemme Line Castro
Published: January 2023

Active packages are a type of package that changes the atmosphere conditions that surround the food to prolong its shelf life, keeping sensory properties and its safety, as well as food quality. The present study reports the development of a ternary Chitosan/Starch/PVA active film with hydroalcoholic extract of Ilex paraguariensis in corporated as antimicrobial agent. Films were prepared by casting 40 mL of 2% starch solution, 40 mL of 1% PVA solution and 20 mL of 1% chitosan solution on petri dishes, 1g of dry Ilex paraguariensis extract was also incorporated into film forming solution. After dried, active films were subjected to antimicrobial and mechanical tests. The mechanical properties showed good values, while swelling index stabilized at 750%. Red meat samples of 2.5 g previously contaminated with S. aureus were wrapped with both commercial PVC as control and with the active film. The effectiveness of the active film was proven by the higher counting of bacterial colonies in the control film than in the developed film on the order of two logarithms cycles. The produced ternary film has good mechanical and microbiological effectiveness.