bluuebunny/crossref_metadata_2025 huggingface dataset:
GRANULAR CELL TUMOR OF THE BREAST - A DIAGNOSIS TO CONSIDER: CASE REPORT AND LITERATURE REVIEW
Authors:   Departement of Obstetric and Gynecology II, Hassan II University Hospital, Fez, Morocco., Zineb Hayati , Sofia Jayi ,   Departement of Obstetric and Gynecology II, Hassan II University Hospital, Fez, Morocco., Fatemi Hinde EL ,   Departement of Pathology, Hassan II University Hospital, Fez, Morocco., Ousroutilayla Tahiri ,   Departement of Pathology, Hassan II University Hospital, Fez, Morocco., Meryem Zaryouhi ,   Departement of Pathology, Hassan II University Hospital, Fez, Morocco., Khaoula Abdellaoui ,   Departement of Pathology, Hassan II University Hospital, Fez, Morocco., Alaouifatima Zahrae Fdili ,   Departement of Obstetric and Gynecology II, Hassan II University Hospital, Fez, Morocco., Hikmat Chaara ,   Departement of Obstetric and Gynecology II, Hassan II University Hospital, Fez, Morocco., Moulay Abdellilah Melhouf ,   Departement of Obstetric and Gynecology II, Hassan II University Hospital, Fez, Morocco.
Published: October 2022

Granular Cell Tumors (GCTs) or Abrikossoffs tumors are ubiquitous lesions that are currently assumed to arise from perineural Schwan cells. Granular Cell Tumors of the Breast (GCTBs) are rare tumors, representing about 5 to 15 % of all GCTs and 6,7 out of 1000 cases of breast neoplasms. They occur usually in premenopausal African-American women and are by large benign, even though in extremely rare cases they can express malignant behavior or coexist with malignant lesions. GCTBs are of particular significance as they mimic breast malignancies both clinically and radiologically. Histological examination is mandatory for the diagnosis of GCTBs and IHC seems to be the gold standard for this diagnosis, indeed, our tumor cells show strong positivity for the S-100 protein. Wide local excision is the only treatment for GCTBs that are associated with an excellent prognosis. In this article we report a case of GCTB with a brief literature review, the aim of this work is to draw the attention of senologists and pathologists toward this misleading tumor, wich should be routinely recalled as differential diagnosis of breast malignancies in order to avoid over treatement of patients.
AN ANALYSIS FOR FUTURE IMPACTS OF ELECTRICAL VEHICLES TO THE ENVIRONMENT
Authors:   Associate Professor Chemistry Department Christ Church College, Kanpur., Kumar Nathaniel Ashim
Published: October 2022

Electric vehicles technology has been identified as being key technology in reducing future emissions and energy consumption in the mobility sector The 90s have brought us to an era of environmental crisis. We are faced with the problems of air pollution, both indoor and outdoor acid rain, water pollution, hazardous wastes, toxic landfills and leaking storage tanks in our soil, to name a few. Our rapid advances into the industrial and technological age have contributed to these problems. However, energy tools have been analyzed and verified in providing significant contribution in terms of environmental clean-up and a healthier World.
TWO CASES OF SUBUNGUAL MELANOMA OF THE THUMB IN SITU
Authors:   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco., Sammouni Otmane ,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco., Boulazaib Issam ,   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco.,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco., Zari Saber ,   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco.,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco., Barrached Mohammed ,   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco.,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco., Lachkar Adnane ,   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco.,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco., Najib Abdeljaouad ,   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco.,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco., Yacoubi Hicham ,   Faculty of Medicine and Pharmacy, Mohammed Ist University, Oujda, Morocco.,   Department of Traumatology, Orthopedic Mohammed VI University Hospital Mohammed I University, Oujda, Morocco.
Published: October 2022

Subungual melanoma is a distinct subtype of cutaneous malignant melanoma arising from structures within the nail apparatus, which is relatively rare. Histological diagnosis is the most definitive means of identifying such a lesion and can prevent significant morbidity and mortality. Suspicious signs to be aware of are pigmentation of the nail folds (Hutchinson\'s sign). Early detection of malignant melanoma is essential to improve treatment outcomes and prognosis. We report two cases of subungual melanoma. Both patients underwent excision of the entire lesion with disarticulation at the interphalangeal joint. The resected margins were found to be free of tumor tissue. The aim of our study is to highlight the typical presentation and clinical features, which help in the early diagnosis and management of subungual melanoma.
TRANSDERMAL NITROGLYCERIN PATCH AND ITS EFFECT ON DIEP FREE FLAP : A CASE REPORT
Authors:   Varun Arjun Medical College and Rohilkhand Hospital Banthara., Sharma Harshita , Charaniya Ashwhn ,   Varun Arjun Medical College and Rohilkhand Hospital Banthara., Gautam Nandita ,   Varun Arjun Medical College and Rohilkhand Hospital Banthara.
Published: October 2022

There may occasionally be venous congestion in a free flap lacking venous anastomosis blockage or other biological causes of decreased venous drainage (hematoma, seroma compressing the pedicle). The researchers advise applying a nitroglycerine patch in this situation very few hours before to the surgical investigation of the anastomosis in the crowded area of the flap. The surgical exploration could be avoided if the clinical characteristic of the flap improves quickly. The researchers emphasize that using a nitroglycerin patch should not be viewed as a treatment for free flap venous thrombosis but rather as a helpful tool that should only be employed when a surgeon is unsure of whether or not to review the anastomosis.
Does brand love strictly increase purchase intention? The case of Linio
Authors: Helaman Rocha-Vallejos Kevin , Nicol Rabanal-Altamirano Shirley , Amadeo Robles-Fabian Daniel , Cordova-Buiza Franklin
Published: October 2022

Given that feelings toward a brand allow for a mutually beneficial relationship, it is easy to assume that they are closely related to the customer’s willingness to buy as if they increase or decrease probably in the same proportion. Consequently, this study aims to observe the attractiveness of the Linio brand, one of Latin America’s most important e-commerce platforms, on the part of its consumers in northern Peru. The paper is quantitative, correlational, cross-sectional, and non-experimental; a probabilistic sampling was applied to 385 young consumers. The study used Microsoft Excel for the descriptive analysis, while the coefficients were applied with IBM SPSS Statistics. After applying Spearman’s Rho tests, the results showed a moderate relationship, with the satisfaction and love dimensions having the highest values. In contrast, the word-of-mouth communication and commitment dimensions have the lowest values. The study presents a moderate positive relationship between the variables brand love and purchase intention, which shows that the link is not as close as initially thought. Furthermore, brand loyalty has a slightly contradictory behavior despite individuals’ level of brand love.
Memories of participation in the work to eliminate the consequences of the Chernobyl accident
Authors: Arkhagelskaya G. V.
Published: October 2022

More than 36 years have passed since the accident at the Chernobyl nuclear power plant. During these years, a huge number of articles, books, films devoted to this human-made disaster have been published in scientific journals and mass media. The article presents the memoirs of the author – a participant in solving the problems that arose during the liquidation of the consequences of the accident. Specialists of the Institute of Radiation Hygiene worked in the contaminated territories of the Bryansk region, Belarus together with the sanitary and epidemiological service, conducted training seminars for various groups of the public in order to educate and teach the rules of behavior in the current situation. Specialists of the Institute compiled reports on the radiation situation based on data from all sanitary and epidemiological services in the Russian Soviet Federative Socialist Republic on the radioactive state of environmental objects. Based on scientific data, Methodological guidelines and recommendations on the prevention of radiation anxiety, on the work of specialists with medical doctors and other group of population were prepared. Texts of lectures on the effects of radiation on health were written and published in the Znanie society.
Theoretical and experimental analysis of applicability of sill with different widths on the gate discharge coefficients
Authors: Daneshfaraz Rasoul , Norouzi Reza , Abbaszadeh Hamidreza , Azamathulla Hazi Mohammad
Published: October 2022

In this study, the effects of the gate opening, sill placement with different widths under the gate, and the sill position from under the gate on the discharge coefficient were investigated experimentally. Sills are placed in positions below, tangentially and upstream of the gate at distances of 7.5 and 17.5 cm from the gate. The results of the present study showed that the discharge coefficient increases with increasing sill width and decreasing total area of the flow passing through the gate. The discharge coefficient increases by installing the sill at certain intervals at increasing distance with respect to the upstream of the sluice gate and has a lower value compared to the non-sill state. At the same opening in non-sill and suppressed sill states, with a sill below and tangential to the gate, the discharge coefficient of the sluice gate with the sill has increased compared to the non-sill state. In addition, the discharge coefficient for a tangential sill has the highest value.
Spatial distribution characteristics and pollution levels of heavy metals in surface water and sediments of the Heihe cascade reservoir system, China
Authors: Wang Yu , Li Bao-long , Li Jin-ping , Wang Zhe-hui , Xian Feng-yun , Fan Yi-yang
Published: October 2022

The operation of cascade reservoir systems has altered river hydrology and sediment distribution patterns. In this study, 31 surface water and sediment samples were collected from the Heihe River from July to August in 2019 and 2020 to investigate the spatial distribution and sources of heavy metals and assess their ecological risks. The results revealed that the concentrations of heavy metals in surface water were much lower than the quality standards for surface water in China, and there were no significant differences in the natural reaches, center and tail of the reservoir. Cd in surface sediments was at a heavy contamination and high risk level, and the heavy metal pollution levels in the main streams and tributaries differed greatly, especially in the graded reservoirs with a gradual accumulation trend. This may be related to the fact that there were many fine-grained sediments in the reservoir center near the dam. Factor analysis-multiple linear regression (FA-MLR) revealed that heavy metals mainly come from natural factors and anthropogenic input, with anthropogenic inputs mainly coming from mining activities in the tributaries and industrial and agricultural activities in the main stream.
Experimental study of sediment washout from stormwater sumps
Authors: Yang Yunze , Huang Biao , Zhu David Z.
Published: October 2022

Sumps are commonly used in urban stormwater systems, which can be considered as a simple pretreatment device for stormwater quality control. However, they may function as pollution sources due to sediment washout under high flow conditions. An experimental study was conducted to investigate the scour process of predeposited sediments from a sump and its influencing parameters. Under conditions with large inflows or high sediment deposit, the sediment particles could be resuspended, entrained and flushed out. The washout mass decreased exponentially with time if the sediment bed surface depth was larger than a threshold value; otherwise, the amount of washout would be much smaller. The same scour pattern was observed for all the testing cases, of which the largest scour depth always occurred below the outlet. The deposit below the inlet might increase under conditions with high flow rates and low levels of sediment bed. Dimension analysis was performed and principal non-dimensional parameters were found, including the Péclet number, the pipe Froude number, and the dimensionless particle diameter, which can be used to determine whether the washout would occur and its intensity in a stormwater sump under given conditions.
Modified Nucleotides for Chemical and Enzymatic Synthesis of
Therapeutic RNA
Authors: Graczyk Anna , Radzikowska-Cieciura Ewa , Kaczmarek Renata , Pawlowska Roza , Chworos Arkadiusz
Published: October 2022

In recent years RNA has emerged as a medium with a broad spectrum of therapeutic potential, however, for years, a group of short RNA fragments was studied and considered therapeutic molecules. In nature, RNA plays both functions, with coding and non-coding potential. For RNA, like for any other therapeutic, to be used clinically, certain barriers must be crossed. Among them, there are biocompatibility, relatively low toxicity, bioavailability, increased stability, target efficiency and low off-target effects. In the case of RNA, most of these obstacles can be overcome by incorporating modified nucleotides into its structure. This may be achieved by both, in vitro and in vivo biosynthetic methods, as well as chemical synthesis. Some advantages and disadvantages of each approach are summarized here. The wide range of nucleotide analogues has been tested for their utility as monomers for RNA synthesis. Many of them have been successfully implemented and a lot of pre-clinical and clinical studies involved modified RNA is carried out. Some of these medications have already been introduced into clinics. After the huge success of RNA-based vaccines that were introduced into widespread use in 2020, and the introduction to the market of some RNA-based drugs, RNA therapeutics containing modified nucleotides appear to be the future of medicine.
Plant Lectins: A Review on their Biotechnological Potential Toward
Human Pathogens
Authors: Souza Pedro F.N. , Costa Ana C.M. , Malveira Ellen A. , Mendonça Lidiane P. , Maia Maria E.S. , Silva Romério R.S. , Roma Renato R. , Aguiar Tawanny K.B. , Grangeiro Yasmim A.
Published: October 2022

The indiscriminate use of antibiotics is associated with the appearance of bacterial resistance.
In light of this, plant-based products treating infections are considered potential alternatives.
Lectins are a group of proteins widely distributed in nature, capable of reversibly binding carbohydrates.
Lectins can bind to the surface of pathogens and cause damage to their structure, thus preventing
host infection. The antimicrobial activity of plant lectins results from their interaction with carbohydrates
present in the bacterial cell wall and fungal membrane. The data about lectins as modulating
agents of antibiotic activity, potentiates the effect of antibiotics without triggering microbial resistance.
In addition, lectins play an essential role in the defense against fungi, reducing their infectivity and
pathogenicity. Little is known about the antiviral activity of plant lectins. However, their effectiveness
against retroviruses and parainfluenza is reported in the literature. Some authors still consider mannose/
glucose/N-Acetylglucosamine binding lectins as potent antiviral agents against coronavirus, suggesting
that these lectins may have inhibitory activity against SARS-CoV-2. Thus, it was found that
plant lectins are an alternative for producing new antimicrobial drugs, but further studies still need to
decipher some mechanisms of action.
Resveratrol in Cancer Therapy: From Stimulation of Genomic Stability to Adjuvant Cancer Therapy: A Comprehensive Review
Authors: Amini Peyman , Moazamiyanfar Reza , Dakkali Mohammad Sedigh , Khani Ali , Jafarzadeh Emad , Mouludi Kave , Khodamoradi Ehsan , Johari Ramin , Taeb Shahram , Najafi Masoud
Published: October 2022

Cancer therapy through anticancer drugs and radiotherapy is associated with several side effects as well as tumor resistance to therapy. The genotoxic effects of chemotherapy and radiotherapy may lead to genomic instability and increased risk of second cancers. Furthermore, some responses in the tumor may induce the exhaustion of antitumor immunity and increase the resistance of cancer cells to therapy. Administration of low-toxicity adjuvants to protect normal tissues and improve therapy efficacy is an intriguing strategy. Several studies have focused on natural-derived agents for improving the antitumor efficiency of radiotherapy, chemotherapy, and novel anticancer drugs such as immunotherapy and targeted cancer therapy. Resveratrol is a naturally occurring substance with intriguing antioxidant, cardioprotective, anti-diabetes, and antitumor properties. Resveratrol has been demonstrated to modulate tumor resistance and mitigate normal tissue toxicity following exposure to various drugs and ionizing radiation. Compelling data suggest that resveratrol may be an appealing adjuvant in combination with various anticancer modalities. Although the natural form of resveratrol has some limitations, such as low absorption in the intestine and low bioavailability, several experiments have demonstrated that using certain carriers, such as nanoparticles, can increase the therapeutic efficacy of resveratrol in preclinical studies. This review highlights various effects of resveratrol that may be useful for cancer therapy. Consequently, we describe how resveratrol can protect normal tissue from genomic instability. In addition, the various mechanisms by which resveratrol exerts its antitumor effects are addressed. Moreover, the outcomes of combination therapy with resveratrol and other anticancer agents are reviewed.
Central Sensitization and Pain: Pathophysiologic and Clinical Insights
Authors: Curatolo Michele
Published: October 2022

Central sensitization is an increased responsiveness of nociceptive neurons in the central
nervous system to their normal or subthreshold afferent input.

Aim:

To explain how the notion of central sensitization has changed our understanding of pain conditions,
discuss how this knowledge can be used to improve the management of pain, and highlight
knowledge gaps that future research needs to address.

Methods:

Overview of definitions, assessment methods, and clinical implications.

Results:

Human pain models, and functional and molecular imaging have provided converging evidence
that central sensitization occurs and is clinically relevant. Measures to assess central sensitization
in patients are available; however, their ability to discriminate sensitization of central from peripheral
neurons is unclear. Treatments that attenuate central sensitization are available, but the limited
understanding of molecular and functional mechanisms hampers the development of target-specific
treatments. The origin of central sensitization in human pain conditions that are not associated with
tissue damage remains unclear.

Conclusion:

The knowledge of central sensitization has revolutionized our neurobiological understanding
of pain. Despite the limitations of clinical assessment in identifying central sensitization, it is
appropriate to use the available tools to guide clinical decisions towards treatments that attenuate central
sensitization. Future research that elucidates the causes, molecular and functional mechanisms of
central sensitization would provide crucial progress towards the development of treatments that target
specific mechanisms of central sensitization.
Gender Differences in the Psychopathology of Mixed Depression in
Adolescents with a Major Depressive Episode
Authors: Apicella Massimo , Serra Giulia , Iannoni Maria Elena , Trasolini Monia , Maglio Gino , Andracchio Elisa , Vicari Stefano
Published: October 2022

Background:

Gender differences have been reported in the severity and psychopathological
features of major depressive disorders among adults but are poorly reported in adolescent samples.

Objective:

This study aimed to examine gender differences in the psychopathology of mixed depression
among adolescents.

Methods:

We analyzed 341 outpatients with the current major depressive episode (MDE) retrospectively
to identify patients with DSM-5 MDE with mixed features. We compared examiner-rated depressive
and (hypo)manic symptoms and self- and parent-reported symptoms between sexes.

Results:

We identified 76 patients with an MDE with mixed features (67.1% females, 32.9% with bipolar
disorder). Depression severity was significantly greater in females versus males (CDRS-R total
score 56.2 vs. 48.2, p = 0.014). Depressive symptoms were significantly and independently found to
be more severe among females in a logistic regression model, including excessive fatigue (OR 1.68;
p = 0.025), low self-esteem (OR 1.67; p = 0.04), excessive weeping (OR 1.62; p = 0.021), and CBCL
AAA index (OR 1.04; p = 0.015). None of the depressive symptoms scored greater in males. Males had
higher levels of motor activity (2.12 vs. 1.69; p = 0.048) and pressured speech (1.80 vs. 1.24; p = 0.004).
Self-rated anxiety (69.3 vs. 56.8, p = 0.047) and CBCL AAA index (207 vs. 189; p = 0.007) were higher
in females.

Conclusion:

Adolescent depression with mixed features is more severe in women, with a higher expression
of core affective symptoms and excessive fatigue. While in males, slightly higher levels of
psychomotor activation are reported, in females, emotional dysregulation and excessive weeping may
subtend a difference in a broader spectrum of mixed features.
Neurocognitive Correlates of Cerebellar Volumetric Alterations in Youth
with Pediatric Bipolar Spectrum Disorders and Bipolar Offspring
Authors: Saxena Kirti , Simonetti Alessio , Verrico Christopher D. , Janiri Delfina , Nicola Marco Di , Catinari Antonello , Kurian Sherin , Saxena Johanna , Mwangi Benson , Soares Jair C.
Published: October 2022

Background:

Emerging evidence points towards the involvement of the cerebellum in the processing of emotions and pathophysiology of mood disorders. However, cerebellar and related cognitive alterations in youth with pediatric bipolar disorder (PBD) and those at high risk to develop the disorder, such as bipolar offspring (BD-OFF) are not clearly defined.

Objective:

To investigate cerebellar gray and white matter volumes, cognition, and their relationship in youth with PBD and BD-OFF.

Methods:

Thirty youth (7 to 17 years, inclusive) with PBD, 30 BD-OFF and 40 healthy controls (HC) were recruited. Study participants underwent a computer-based cognitive battery assessing affective processing, executive function, attention, psychomotor speed, and learning. Three-tesla MRI scan was performed to assess cerebellar white and gray matter volumes. Cerebellar segmentation was performed with FreeSurfer. Statistical analyses include between-group differences in cognitive domains, cerebellar gray, and white matter volumes.
Relationships between cerebellar volumes and cognitive domains were examined.

Results:

Youth with PBD showed greater cerebellar gray matter volumes than both BD-OFF and HC, whereas no differences were present between BD-OFF and HC. Both youth with PBD and BD-OFF showed altered processing of negative emotions and a bias towards positive emotions. In youth with PBD and BD-OFF, greater impairment in the processing of emotions correlated with greater cerebellar gray matter volumes.

Conclusions:

The present findings corroborate hypotheses on cerebellar involvement in the processing of emotions and the pathophysiology of PBD. The presence of cerebellar dysfunction in BD-OFF is unclear.
Graft Patency Assessment with CCTA Using a Comprehensive Singlebranch Bridging Score
Authors: Xiao Jianwei , Wang Xiang , Huang Zengfa , Yang Yang , Du Xinyu , Wang Xi , Li Zuoqin , Hu Yun , Li Xiang
Published: October 2022

Aims:

This study aims to assess the prognostic value of graft patency with coronary computed tomography angiography (CCTA) using a comprehensive single-branch targeted atherosclerotic risk score (CSBS) in patients before coronary artery bypass grafting (CABG).

Methods:

This retrospective study contains a total of 88 patients who underwent clinical CCTA before off-pump CABG surgery between 2015 and 2018. Graft failure was defined as patients with missing multi-slice CCTA or coronary angiography. The predictive value of CSBS (ranging from 0-70 and divided into 2 groups: < 20 and ≥20) was analyzed using Kaplan–Meier analysis and Cox regression models.

Results:

Patients' mean age was 61.2 ± 10.5 years, with a mean follow-up of 20.4 ± 15.2 months. A total of 203 grafts (21.5% arterial grafts) were analyzed and 30 of the vessels were occluded (14.8%). There was no significant difference in graft occlusion among the three targeted vessel groups. The Cox proportional hazard analysis showed that CSBS < 20 was a significant predictor of graft failure.

Conclusion:

Lower comprehensive single-branch targeted atherosclerotic risk score evaluated by CCTA is an independent prognostic factor for graft failure in patients before CABG surgery.
LGR5 As a Potential Therapeutic Target for Breast Cancer: A Systematic
Review and Meta-analysis
Authors: Razavi-Amoli Seyedeh-Kiana , Omrani-Nava Versa , Heydari Keyvan , Kaidarova Dilyara , Alizadeh-Navaei Reza
Published: October 2022

Background and Objective:

Breast cancer is the world's most common malignancy. Despite
significant advances in the diagnosis and treatment of the disease, the associated mortality rate is still
high. Tumor initiating cells known as cancer stem cells with unique abilities are suspected responsible for
therapy failure and poor prognosis. Leucine-rich repeat-containing G-protein-coupled receptor 5 (LGR5)
is a cancer stem cell marker that promotes aggressive features in breast cancer cells. So, the aim of this
study was to perform a systematic review and meta-analysis to evaluate LGR5 as a therapeutic target for
breast cancer.

Methods:

This systematic review and meta-analysis were performed using databases of Web of Science,
Scopus, and PubMed. We searched these databases with LGR5 and Breast Cancer and related keywords
based on the mesh database until Oct12, 2021. All studies that reported the rate of LGR5 high expression
with Immunohistochemistry in breast cancer patients were included in this review. We used the STATA
and random effect models for data analysis.

Results:

Finally, 7 studies including 2632 breast cancer samples were studied. The pooled prevalence of LGR5 high expression in breast cancer was 36 % (CI95%: 26-47.5%, I2= 95.5) and in triple negative was 48.6% (CI95%: 38.4-58.7%, I2= 0.0).

Conclusion:

Finally, 7 studies including 2632 breast cancer samples were studied. The pooled prevalence of
LGR5 high expression in breast cancer was 48.6 % (CI95%: 40.5-56.7%, I2=0.0) and in triple negative
was 48.6% (CI95%: 38.4-58.7%, I2= 0.0).
Chlororespiration as a Protective Stress-inducible Electron Transport Pathway in Chloroplasts
Authors: Zolotareva Elena K. , Polishchuk Oleksandr V.
Published: October 2022

Chlororespiration is the uptake of oxygen into the respiratory electron transport chain (ETC) localized in the thylakoid membranes of chloroplasts. The chlororespiratory ETC interacts with photosynthetic electron transport and participates in the non-photochemical reduction/oxidation of the plastoquinone pool (PQP) accompanied by O2 consumption. The two key thylakoid enzymes in chlororespiration are the plastid-encoded NAD(P)H dehydrogenase complex (NDH) and the nucleus-encoded terminal plastoquinol oxidase (PTOX). The contribution of chlororespiratory electron flux to the total electron flow in non-stressed plants is considered insignificant. In contrast, under abiotic stresses, chlororespiration appears to be triggered, at least in some photosynthetic organisms, acting as a protective alternative electron transport pathway. There is evidence of NDH complex and PTOX increasing their activity and/or abundance when plants experience high light, drought, heat, or low-temperature stresses. Alternative electron transfer to oxygen via PTOX protects PQP from over-reduction under stress conditions. For instance, it was shown that PTOX-dependent electron drainage accounted for up to 30% of total PSII electron flow in salt-stressed plants. PTOX is not bound to the thylakoid membrane in dark-adapted leaves but is associated with it at intense illumination and high transmembrane proton gradient (ΔpH) or membrane potential (Δψ). It was also shown that PTOX is capable of lateral translocation from stromal lamellae to granal thylakoid stacks under salt stress. Such changes in PTOX localization increase the accessibility of the substrate (plastoquinol) and the turnover rate of the enzyme. The available data allow considering PTOX as a possible target for manipulation to increase stress tolerance in sensitive plants.
Transport Poverty: A Comparative Study between South Africa and Nigeria
Authors: Popoola Ayobami , Akogun Olawale , Magidimisha-Chipungu Hangwelani , Chipungu Lovemore
Published: October 2022

Background:

Achieving the Sustainable Development Goals (SDGs) and neighbourhood liveability is dependent on an improved transportation sector. Urban transport is conceptualized as either mobility or accessibility; thus, it remains an integral part in enhancing urban livelihood and serves as a hub connecting all sectors of a city's economy. Lack of access to opportunities and/or services, inadequate transport services, and physical or financial inaccessibility to transport options are prevailing in African cities and have been used to conceptualize transport poverty.

Objectives:

This study seeks the relationship between some dimensions of transport poverty and life satisfaction. The argument put forward in this study is that transport poverty predicts life satisfaction that is a vital aspect of subjective wellbeing.

Methods:

The study utilise an exploratory, comparative design that will enable the comparison of dimensions of Transport Poverty in Ibadan, Nigeria, and Durban, South Africa. For this study, communities in both Ibadan and Durban were randomly selected; while data were collected through an online survey method. The hypothesis that spatial exclusion mediates the relationship between service availability and satisfaction with life, transport disadvantaged and satisfaction with life, and transport reliability and satisfaction with life were tested through mediation analysis.

Results:

For the first hypothesis, partial mediation existed; for the second hypothesis, no mediation existed; for the third hypothesis, total mediation existed. Lastly, spatial exclusion varied between the two countries.

Conclusion:

The study concludes that a transport network that is not reliable leads to spatial exclusion, which in turns affects satisfaction with life. Likewise, all dimensions of transport poverty are similar except for spatial exclusion which differs between the countries, with South Africans experiencing more cases of spatial exclusion as compared to Nigerians.
An Autonomous Adaptive Enhancement Method Based on Learning to
Optimize Heterogeneous Network Selection
Authors: Sucharitha Yadala , Shaker Reddy Pundru Chandra
Published: October 2022

Aims and Background:

Mobile workstations are frequently used in challenging environments
of heterogeneous networks. Users must move between various networks for a myriad of purposes,
including vertical handover. At this time, it is critical for the mobile station to quickly pick the
most appropriate networks from all identified alternative connections with the decision outcome,
avoiding the ping-pong effect to the greatest extent feasible.

Objectives and Methodology:

Based on a combination of network characteristics as well as user
choice, this study offers a heterogeneous network selection method. This technique integrates three
common Multi-Attribute Decision-Making (MADM) techniques, notably the Fuzzy Analytic Hierarchy
Process (FAHP), Entropy, and Technique for Order Preference by Similarity to Ideal Solution
(TOPSIS), to take into consideration user preferences for every prospective network as well as the real
scenario of heterogeneous networks. For different traffic classes, FAHP is first utilized to determine
the weights of network parameters and the utility numbers of total options available. Next, entropies
and TOPSIS are utilized to obtain only the unbiased weights of network factors and utility principles
of totally different options.

Results:

The most suitable networks, whose utility number is the greatest and larger than that of the
equivalent number of present networks of the phone station, are chosen to provide accessibility based
on the utility numbers of each prospective system as a limit. The suggested method not only eliminates
a particular algorithm's one-sided character but also dynamically changes the percentage of each
method in the desired outcome based on real needs.

Conclusion:

The proposed model was compared to the three existing hybrid methods. The results
showed that it could precisely choose the optimized network connectivity and significantly reduce the
value of vertical handoffs. It also provides the requisite Quality of Service (QoS) and Quality of Everything
(QoE) in terms of the quantitative benefits of vertical handovers.
Frequency Coordinated Control of Wind Power Flexible Direct System
Based on Voltage Sourced Converter Based Multi-Terminal High Voltage
Direct Current
Authors: Li Congshan , Zhen Zikai , He Ping , Liu Yan , Zhong Pu
Published: October 2022

Background:

With the continuous penetration of renewable energy in modern power
systems, the problem of excessive frequency deviation of power systems, which is caused
by the integration of wind power into electricity grids, needs to be solved urgently.

Objective:

Make up for frequency fluctuations when AC systems fail, improve the frequency
characteristics of main system networks, and reasonably distribute unbalanced power.

Methods:

According to the principle of active power distribution, a frequency division coordinated
control strategy that uses low-pass filter control to divide power fluctuations into highfrequency
fluctuations and low-frequency fluctuations is proposed. High-frequency fluctuations
are attached to the wind farm side, and low-frequency fluctuations are attached to the DC
system to realize frequency division control.

Result:

The simulation results showed that the coordination of the frequency division control
of the wind farm and flexible DC system could effectively reduce the main grid’s frequency
fluctuations, which are caused by the AC system failure, and improve the stable operation
ability of the AC and DC systems.

Conclusion:

The frequency division control can overcome the unbalanced power distribution
caused by traditional droop control, reduce the frequency deviation of the AC system, realize
frequency autonomy, and enhance system robustness.
Research Progress on the Modification Methods of Clay Minerals
Authors: Liao Chengxu , Wu Xiaotan , Zou Li , Liu Yawen , Chen Zhihui
Published: October 2022

Clay minerals are widely distributed in nature, and their applications have been rapidly developed in the last decade or so due to their unique physical and chemical properties. Since the most researched is the modification of clay minerals, this paper introduces the types of clay, basic structural characteristics and common modification methods. The methods of modified clay include high-temperature excitation and acid-base excitation methods to stimulate the activity of clay minerals, as well as interlayer ion exchange modification methods, clay surface grafting techniques such as sol-gel method, surface hydroxyl grafting modification and other methods, and also introduces the intercalation methods, including solution intercalation method, In situ polymerization intercalation method, etc. The applications and developments of clay minerals are summarized, from traditional industrial applications to environmental protection and high-tech nanomaterials, mainly in the automotive industry, environment-friendly materials and catalysts.
Is it a kind of crime? Hindering and limiting Scientific researches (State Professot Council), publishing fake news and internet crimes in Vietnam
Authors: Huy Dinh Tran Ngoc , Nhung Pham Thi Hong , Yen Ly Lan , Thu Nguyen Anh , Hien Dinh Tran Ngoc , Hue Ly Thi
Published: October 2022

In reality, many countries take education as the top priority to develop the country. Education is a prerequisite to help decide whether the country's economy develops or not, whether the society is stable or not, whether the country has many talents to serve or not. Therefore, education today plays a great role in the development of the country. That’s why we present here a case study on negative aspects of Vietnam education including: a criminal case study of posting fake news of Thanhnien.vn and Tuoitre.vn (online newspapers) in Vietnam. Next we present critical points on case of fake Professor – Tran Van Tho in State Professor Council (Trần Thọ Đạt -HĐGSNN) in limiting researches of scientists. As their behaviors are considered to violate privacy and science laws, their untruth news online has caused many troubles, disorder and misleading community and society. This study also shows directions of President Ho Chi Minh to presents some ideologies on publishing activities for educating students in journalism, this study also make some suggestions from European approaches.
Oblate Distorted Harmonic Oscillator Symmetry
Authors: Rawal Aum
Published: October 2022

Abstract: Harmonic oscillator states have shown advantageous for nuclear structure. Nuclear physics experts have developed sophisticated group theory-based mathematical techniques to handle n-particle states in the harmonic oscillator (ho) potential as a result of this. The deformed harmonic oscillator (HO)'s oblate shell closure has been studied, and the results demonstrate that the accompanying magic numbers are connected to a universal sequence of the triangular numbers that identically characterize oblate, spherical, and prolate. This offers a distinct framework for comprehending the distorted HO. There is discussion of the effects on oblate nuclei in the present study. The current work examines the symmetries of the deformed HO on the oblate side of deformation and demonstrates that these spherical degeneracies are equally important on this side of deformation as they are on the prolate side. The significance of these symmetries for comprehending nuclear structure is highlighted.
CFD Analysis of Cone Shaped Coil Heat Exchanger by Using Copper Oxide Nanofluid with Ethylene Glycol and Water as Its Base Fluid in Aluminium Tube with Different Mass Flow Rate
Authors: Kumar Navneet , Pandey Vijaykant
Published: October 2022

Abstract: The recovery of waste heat has been a topic of concern for large-scale industrial companies for several decades. This recovery not only makes an operation more environment friendly, but it also helps to cut costs. In addition to this, it can reduce the amount of resources needed to power a facility. Many industries have implemented different methods of waste heat recovery. In this present paper the efforts are made to understand that how to compare the heat transfer rate in Cone shaped coiled tube heat exchanger using CuO Nano fluid with Water and Ethylene glycol as a base fluid in Cone shaped Heat Exchanger with the help of CFD on aluminium tube. Cone Shaped coil was fabricated by bending 500 mm length of aluminium tube having 10mm tube diameter, 50 mm pitch coil diameter, 25mm pitch and tapered angle 20 . The comparison of pressure drop and temperature variation between different mass flow rate with water and ethylene glycol as its base fluid in aluminium tube found in this analysis. The result indicates that the CuO nanofluid with ethylene glycol as a base fluid at 0.02m/s mass flow rate have maximum pressure drop and also have minimum temperature variation compare with other mass flow rate.
The genre features of the novels by Marina Paley
Authors: Ledneva Daria M.
Published: October 2022

First Marina Paley novels are classified as traditional prose. However, her search for an adequate form of expression of the author's worldview led her to genre experiments and gave bright artistic results. The genre features of the story “Under the Sky of my Africa,” its intertextuality and dialogue with Pushkin, are considered. In particular, the author analyzes the problem of “fundamental untranslatability of codes,” the genre features of the travelogue and notes in the context of Paley's entire work. The analysis of main characters also was carried out and includes the correlation of Vanka Telyatnikov with the motives of Russian evil spirits and the trickster. The inner life of Mazaniva Mvunga is studied in the context of the African line of A.S. Pushkin. Bringing together different motives, images, intertextuality, Marina Paley achieves expressive features in creating an actual picture of Russian reality and affirms her ideas about the main values of life.
Korean media under the American military administration (1945-1948)
Authors: Kim Seulki
Published: October 2022

Probably, the beginning of the pro-American trend in the development of Korean media was the editorial policy of the Korean media in the middle of the 20th century. This assumption is tested with the help of historical and typological analysis of the Korean mass media during the period of the American military administration in 1945-1948. In in the context of the media, a characteristic of the political situation of that period is given. A comparative descriptive method and a classification method were applied. Previously unpublished information about the structure, language, and style, circulation, audience, thematic focus of two newspapers, the most popular at that time in Korea, is presented. In addition, the most significant personalities in the field of journalism of the designated period are identified. This study not only provides an insight into the political situation and journalism of 1945-1948 but also draws attention to the origins of the long-term influence that the United States of America had on the ideological transformation of the Korean media. It was discovered that at first the American military administration in Korea guaranteed and supported freedom of the press, then an anti-communist policy was inspired and mainly pro-American publications remained in Korea. Thus, it is from the time when Korea was ruled by the American military administration that the Korean media has been favorable to the United States and negative to its opponents.
New approach to the teaching of Russian for journalists. Book review: Glazkov, A.V. (2022). Semantics: From word to text: Handbook and practicum for high schools. Moscow: Yurait Publ. (In Russ.)
Authors: Pechenkina Olga Yu.
Published: October 2022

The review analyzes a handbook of Russian for journalism students. The author proposes a new approach based on semantics. The book consists of three parts: word, sentence, and text. Each part demonstrates how the items of related level take part in the process of creating meanings. All examples used for illustrating and analysis are from actual Russian media. The handbook is consistent with State Educational Standard for High Education and recommended as manual and practicum for high school students specializing in humanities.
Module platform for hybrid PBF-LB manufacturing
Authors: Rautio Timo , Mäkikangas Jarmo , Mustakangas Aappo , Järvenpää Antti
Published: October 2022

This study presents a module platform for additive manufacturing (AM) of parts with the laser powder bed fusion (PBF-LB) technique. The proposed configurable platform enables hybrid manufacturing, because the bulk of the part can be manufactured with traditional methods and the complex part with AM combining the best qualities of both. The main objective was to find a new way of combining manufacturing techniques to reduce costs both in printing and in the postprocessing phase of production. Mechanical testing and microstructural analysis were used to verify the joint quality and strength between the printed part and the sheet metal. PBF-LB manufacturing was experimented directly on 316L and P355GH sheet metal steels, and in both cases, the results showed that the joints did not degrade the material properties. In addition to specimens for tensile testing, parts for a flexural bending machine were manufactured as a proof of concept. The module platform was successfully used to manufacture parts with reduced material cost and printing time, and the print job could be performed without any support structures, obviating the need for post processing. The proposed platform design can be used not only as a new tool for improving the production efficiency of the PBF-LB technique, but also to overcome some of the limitations in part design.
Sustainability of African Oil Palm Agriculture in a Changing Climatic Environment
Authors: Bakoumé Claude
Published: October 2022

Non-governmental organizations often claim that those countries growing oil palm are responsible for deforestation, biodiversity loss, and climate change. Nevertheless, demand for palm oil has kept on growing in Africa and worldwide due to the ever-growing populations and to the high demand for palm oil numerous food and non-food uses. In 2018, African demands for oils and fats are estimated at 30.64 million tonnes. Assuming that 50% of the continent’s demands were to be satisfied with palm oil, mature oil palm areas would have to be 7.547 million hectares at the current palm oil yield of 2.03 t/ha. Growing demand for palm oil will result in expansion of oil palm plantation in new forest areas. In Africa, further challenges facing oil palm agriculture are poor yields of oil palm resulting from (i) limited technical knowhow on the establishment and management of plantations, (ii) a marked dry season of 2-5 months per year, and (iii) unambitious oil palm development programmes. Fortunately, oil palm ranked first in oil production per unit area with a high theoretical oil yield potential (18 t/ha). High-yield oil palm agriculture could be harnessed to meet the growing demand for food without destroying more natural habitat. In 2016, 609 000 ha would have been enough for the 9 recorded African oil palm-growing countries to produce their 2.434 million tonnes of palm oil production at 4 t/ha against 1.198 million hectares effectively harvested with an average yield of 2.031 t/ha. High-yield on-farm activities are recommended, from the site selection to the harvest of ripe fresh fruit bunch to (i) ensure economic and environmental sustainability of oil palm fields, (ii) consolidate the African oil palm sector, and (iii) prepare its shift to an African oil palm industry, an ambitious vision on which sustainability of the palm oil business depends.