bluuebunny/crossref_metadata_2025 huggingface dataset:
Well-posedness and direct internal stability of coupled non-degenrate Kirchhoff system via heat conduction
Authors: Aissa Akram Ben
Published: September 2021

In the paper under study, we consider the following coupled non-degenerate Kirchhoff system

 \begin{document}$\begin{equation} \left \{ \begin{aligned} & y_{tt}-\mathtt{φ}\Big(\int_\Omega | \nabla y |^2\,dx\Big)\Delta y +\mathtt{α} \Delta \mathtt{θ} = 0, &{\rm{ in }}&\; \Omega \times (0, +\infty)\\ & \mathtt{θ}_t-\Delta \mathtt{θ}-\mathtt{β} \Delta y_t = 0, &{\rm{ in }}&\; \Omega \times (0, +\infty)\\ & y = \mathtt{θ} = 0,\; &{\rm{ on }}&\;\partial\Omega\times(0, +\infty)\\ & y(\cdot, 0) = y_0, \; y_t(\cdot, 0) = y_1,\;\mathtt{θ}(\cdot, 0) = \mathtt{θ}_0, \; \; &{\rm{ in }}&\; \Omega\\ \end{aligned} \right. \end{equation} \ \ \ \ \ \ \ \ \ \ \ \ \ (1)$ \end{document}

where \begin{document}$ \Omega $\end{document} is a bounded open subset of \begin{document}$ \mathbb{R}^n $\end{document}, \begin{document}$ \mathtt{α} $\end{document} and \begin{document}$ \mathtt{β} $\end{document} be two nonzero real numbers with the same sign and \begin{document}$ \mathtt{φ} $\end{document} is given by \begin{document}$ \mathtt{φ}(s) = \mathfrak{m}_0+\mathfrak{m}_1s $\end{document} with some positive constants \begin{document}$ \mathfrak{m}_0 $\end{document} and \begin{document}$ \mathfrak{m}_1 $\end{document}. So we prove existence of solution and establish its exponential decay. The method used is based on multiplier technique and some integral inequalities due to Haraux and Komornik[5,8].
Linear subdiffusion in weighted fractional Hölder spaces
Authors: Krasnoschok Mykola , Vasylyeva Nataliya
Published: September 2021

For \begin{document}$ \nu\in(0,1) $\end{document}, we investigate the nonautonomous subdiffusion equation:

   \begin{document}$ \mathbf{D}_{t}^{\nu}u-\mathcal{L}u = f(x,t), $\end{document}

where \begin{document}$ \mathbf{D}_{t}^{\nu} $\end{document} is the Caputo fractional derivative and \begin{document}$ \mathcal{L} $\end{document} is a uniformly elliptic operator with smooth coefficients depending on time. Under suitable conditions on the given data and a minimal number (i.e. the necessary number) of compatibility conditions, the global classical solvability to the related initial-boundary value problems are established in the weighted fractional Hölder spaces.
Preventing extinction in Rastrelliger brachysoma using an impulsive mathematical model
Authors: Prathumwan Din ,   Department of Mathematics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand, Trachoo Kamonchat , Maiaugree Wasan , Chaiya Inthira ,   Department of Mathematics, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand,   Division of Physics, Faculty of Science and Technology, Thammasat University, PathumThani 12120, Thailand
Published: September 2021

In this paper, we proposed a mathematical model of the population density of Indo-Pacific mackerel (Rastrelliger brachysoma) and the population density of small fishes based on the impulsive fishery. The model also considers the effects of the toxic environment that is the major problem in the water. The developed impulsive mathematical model was analyzed theoretically in terms of existence and uniqueness, positivity, and upper bound of the solution. The obtained solution has a periodic behavior that is suitable for the fishery. Moreover, the stability, permanence, and positive of the periodic solution are investigated. Then, we obtain the parameter conditions of the model for which Indo-Pacific mackerel conservation might be expected. Numerical results were also investigated to confirm our theoretical results. The results represent the periodic behavior of the population density of the Indo-Pacific mackerel and small fishes. The outcomes showed that the duration and quantity of fisheries were the keys to prevent the extinction of Indo-Pacific mackerel.
Modelling and analysis of prey-predator model involving predation of mature prey using delay differential equations
Authors: Kumar Pankaj , Raj Shiv
Published: September 2021

In this paper, the modelling and analysis of prey-predator model involving predation of mature prey is done using DDE. Equilibrium points are calculated and stability analysis is performed about non-zero equilibrium point. Delay parameter destabilizes the system and triggers asymptotic stability when value of delay parameter is below the critical point. Hopf bifurcation is observed when the value of delay parameter crosses the critical point. Sensitivity analysis has also been performed to look into the effect of other parameters on the state variables. The numerical results are substantiated using MATLAB.
Caracterización mecánica de materiales impresos en 3D de polímero de ácido poliláctico: los efectos de la geometría del relleno
Authors: Güler Özgül Hande , Tatlı Onur
Published: September 2021

Hoy, los avances tecnológicos han llevado al descubrimiento de métodos de fabricación desarrollados recientemente. La tecnología de fabricación aditiva con impresora tridimensional (3D) es uno de estos nuevos métodos. En este método, se pueden fabricar piezas con geometría compleja que no se pueden producir mediante métodos convencionales. El método más popular y de bajo precio entre las tecnologías de fabricación aditiva es FDM (Fused Deposition Modeling). En este estudio, se ha realizado el diseño y la fabricación de impresoras 3D utilizando tecnología FDM. Se han determinado cinco geometrías de relleno diferentes, como reloj de arena (HG), giroide (GY), octaédrico (OC), triángulo (TR) y cuadrícula (GR), luego se aplicaron las pruebas de tracción y flexión de 3 puntos a las muestras fabricadas de polímero de ácido poliláctico (PLA) y las propiedades mecánicas se compararon entre sí. El aspecto más importante del estudio es la comparación de la geometría del relleno de la rejilla, que se ha estudiado ampliamente en la literatura, y las geometrías raramente estudiadas como el reloj de arena, el giroide, el octaédrico y el triángulo en términos de propiedades mecánicas. Se concluyó que el tipo de sección transversal diferente tiene un efecto significativo, especialmente en la resistencia a la tracción. Los valores de resistencia más altos se determinaron en las muestras con geometría de relleno triangular.
Para além de uma análise de conjuntura do Brasil atual
Authors: De Souza Possmozer Michelli
Published: September 2021

A obra Conservadorismos, fascismos e fundamentalismos: análises conjunturais consiste numa coletânea de seis artigos, organizada por Ronaldo de Almeida e Rodrigo Toniol. Pesquisadores realizam uma análise de conjuntura, a partir de diversas áreas do conhecimento, acerca do contexto social e político brasileiro contemporâneo, marcado pelo (re) surgimento de uma direita conservadora.
Compression of PPG Signal Through Joint Technique of Auto-Encoder and Feature Selection
Authors: Sunil Kumar K. N.  , Shankar Shiva , Keshavamurthy
Published: September 2021

PPG signal utilize the light-based method to sense the blood-flow-rate as controlled by the actions of heart’s pumping. It is extensively utilized in the healthcare with application ranging from the pulse oximetry in the serious care units to the heart rate (HR) measurement in the wearable devices. This paper introduces the algorithm known as PPGC-AE-FS (PPG-Signal Compression using Auto-Encoder and Feature Selection) that is the combined generative method, which incorporates FS and AE together. At the end, our introduced algorithm can differentiate the task as relevant units through not relevant task to get very effective feature for the classification task. Our method not only accomplishes the FS on the learned level of higher feature, but also endows the AE to construct the discriminative units. Our experimental outcomes on many benchmarks that demonstrate our model is much better than existing methods.
Diabetes Prediction Using Enhanced SVM and Deep Neural Network Learning Techniques
Authors: Nagaraj P. , Deepalakshmi P.
Published: September 2021

Diabetes, caused by the rise in level of glucose in blood, has many latest devices to identify from blood samples. Diabetes, when unnoticed, may bring many serious diseases like heart attack, kidney disease. In this way, there is a requirement for solid research and learning model’s enhancement in the field of gestational diabetes identification and analysis. SVM is one of the powerful classification models in machine learning, and similarly, Deep Neural Network is powerful under deep learning models. In this work, we applied Enhanced Support Vector Machine and Deep Learning model Deep Neural Network for diabetes prediction and screening. The proposed method uses Deep Neural Network obtaining its input from the output of Enhanced Support Vector Machine, thus having a combined efficacy. The dataset we considered includes 768 patients’ data with eight major features and a target column with result “Positive” or “Negative”. Experiment is done with Python and the outcome of our demonstration shows that the deep Learning model gives more efficiency for diabetes prediction.
Downregulation of Perilipin1 by the Immune Deficiency Pathway Leads to Lipid Droplet Reconfiguration and Adaptation to Bacterial Infection in Drosophila
Authors: Wang Lei , Lin Jiaxin , Yu Junjing , Yang Kaiyan , Sun Li , Tang Hong , Pan Lei
Published: September 2021

Lipid droplets (LDs), the highly dynamic intracellular organelles, are critical for lipid metabolism. Dynamic alterations in the configurations and functions of LDs during innate immune responses to bacterial infections and the underlying mechanisms, however, remain largely unknown. In this study, we trace the time-course morphology of LDs in fat bodies of Drosophila after transient bacterial infection. Detailed analysis shows that perilipin1 (plin1), a core gene involved in the regulation of LDs, is suppressed by the immune deficiency signaling, one major innate immune pathway in Drosophila. During immune activation, downregulated plin1 promotes the enlargement of LDs, which in turn alleviates immune reaction–associated reactive oxygen species stress. Thus, the growth of LDs is likely an active adaptation to maintain redox homeostasis in response to immune deficiency activation. Therefore, our study provides evidence that plin1 serves as a modulator on LDs’ reconfiguration in regulating infection-induced pathogenesis, and plin1 might be a potential therapeutic target for coordinating inflammation resolution and lipid metabolism.
Cutting Edge: A Threshold of B Cell Costimulatory Signals Is Required for Spontaneous Germinal Center Formation in Autoimmunity
Authors: Chiang Kristy , Largent Andrea D , Arkatkar Tanvi , Thouvenel Christopher D , Du Samuel W , Shumlak Natali , Woods Jonathan , Li Quan-Zhen , Liu Yifan , Hou Baidong , Rawlings David J , Jackson Shaun W
Published: September 2021

Cognate interactions between autoreactive B and T cells promote systemic lupus erythematosus pathogenesis by inter alia facilitating spontaneous germinal center (GC) formation. Whereas both myeloid and B cell APCs express B7 ligands (CD80 and CD86), the prevailing model holds that dendritic cell costimulation is sufficient for CD28-dependent T cell activation. In this study, we report that B cell–intrinsic CD80/CD86 deletion unexpectedly abrogates GCs in murine lupus. Interestingly, absent GCs differentially impacted serum autoantibodies. In keeping with distinct extrafollicular and GC activation pathways driving lupus autoantibodies, lack of GCs correlated with loss of RNA-associated autoantibodies but preserved anti-dsDNA and connective tissue autoantibody titers. Strikingly, even heterozygous B cell CD80/CD86 deletion was sufficient to prevent autoimmune GCs and RNA-associated autoantibodies. Together, these findings identify a key mechanism whereby B cells promote lupus pathogenesis by providing a threshold of costimulatory signals required for autoreactive T cell activation.
Comparative evaluation of ventilator-associated pneumonia in critically ill COVID- 19 and patients infected with other corona viruses: a systematic review and meta-analysis
Authors: Jain Shikha , Khanna Puneet , Sarkar Soumya
Published: September 2021

The Coronavirus disease 19 (COVID-19) pandemic is associated with an unprecedented requirement for intensive care unit (ICU) admission, invasive mechanical ventilation, and thereby significantly increasing the risk of secondary nosocomial pneumonia, Ventilator-Associated Pneumonia (VAP). Our study aims to identify the overall incidence of VAP, common organisms associated with it, and outcome in COVID-19 patients in comparison to the non-SARS-CoV-2 infected critically ill ventilated COVID-19 patients. A comprehensive screening was conducted using major electronic databases), from January 1st 2020 to May 31st 2021, as per the PRISMA statement. In our rapid review, we included a total of 34 studies (involving 8901 cases. Overall VAP was reported in 48.15 % (95% CI 42.3%-54%) mechanically ventilated COVID-19 patients and the mortality rate was 51.4% (95% CI 42.5%-60%). COVID-19 patients had increased risk of VAP and mortality in comparison to other non-SARS-CoV-2 viral pneumonia (OR=2.33; 95%CI 1.75-3.11; I2=15%, and OR=1.46; 95%CI 1.15-1.86; I2=0% respectively). Critically ill COVID-19 patients are prone to develop VAP, which worsens the outcome.
To study heterogeneity in SARS-CoV-2 IgG response titre in patients recovered from COVID-19
Authors: Avneet Garg  , Singh Rakendra , Iyer Hariharan , Kaur Mansimranjit , Surbhi Surbhi , Jindal Ashish , Singh Saranpal , Bansal Avtar Singh , Sati Hem C. , Jindal Vinita
Published: September 2021

The COVID-19 pandemic caused a serious health challenge to the entire mankind. The association between clinical characteristics of disease and formation of neutralizing antibodies have not well studied. A prospective study was conducted for patients recovered from confirmed SARS-CoV-2 infections from 1st August 2020 to 28th February 2021, to study the association between SARS-CoV-2 IgG antibody response titres and clinical characteristics of the disease. A total 92 patients were included in the study. Median age was 52 years; majority were male and middle or old aged.  About 48% patients required hospitalization and 38.3% had moderate CT severity score. Positive SARS-CoV-2-IgG was detected in all patients except one. On comparing the antibody titres among various sub-groups of COVID-19 recovered patients, old age was the only factor associated with statistically significant higher antibody response (28 AU/ml for age<35 years, 53 AU/ml for age group 35-60, and 71 AU/ml for age group >60 years, p value=0.01). Severity of infection, worse CT severity scores, need of hospitalization, oxygen or ventilatory support were associated with higher antibody titres but were not statistically significant. There was a strong correlation of antibody titres when analysed for age of study population (Spearman correlation=0.39, p value <0.001); whereas a weak correlation (Spearman correlation=0.03, p value 0.753) was seen when analysed for CT severity score. Elderly patients had higher antibody titre after recovery from Covid-19 infection. Severity of disease, need of hospitalisation or oxygen/mechanical ventilation did not influence the antibody titre.
Prevalence of diabetes mellitus and hypertension amongst the HIV-positive population at a district hospital in eThekwini, South Africa
Authors: Rajagopaul Althea , Naidoo Mergan
Published: September 2021

Background: Life expectancies of HIV-positive patients have been increasing with the rapid implementation of antiretroviral therapy (ART). This has led to an increase in comorbidities such as diabetes mellitus (DM) and hypertension (HT) amongst the HIV population. The burden of the non-communicable diseases (NCDs) such as DM and HT need to be quantified in order to ensure that patients receive optimal integrated care as patients often access care at different clinics compromising holistic care.Aim: The aim of the study was to determine the prevalence of DM and HT amongst the HIV-positive population.Setting: The study was conducted at Wentworth Hospital, a district facility in South Durban, KwaZulu-Natal.Methods: This cross-sectional study was undertaken to determine the prevalence of two NCDs, namely DM and HT in HIV-positive patients attending the ART clinic at a district hospital in the eThekwini district. We compared the socio-demographic and clinical profiles of those with and without comorbidities. A sample of 301 HIV-positive patients were administered a structured questionnaire.Results: Of the 301 patients, 230 (76.41%) had HIV only (95% confidence interval [CI]: 71.25–80.89) and 71 (23.59%) had HIV and at least one comorbidity, namely DM and/or HT (95% CI: 19.11-28.75). Hypertension was the most prevalent comorbidity. This study revealed that there was no association between the duration of ART and comorbidities. Older age and body mass index (BMI) were associated with comorbidities, whilst gender and ethnicity were not associated.Conclusion: Non-communicable diseases such as DM and HT do pose a burden for HIV-positive patients attending the ARV clinic at this district facility. This study highlights the definite need to plan for the increased burden of NCDs as HIV-positive patients live longer and gain weight.
Impact of Artificial Intelligence and Big Data on the Healthcare Profession?
Authors: Kumar Raman
Published: September 2021

If one looks back on human history, there are cycles of civilizational growth and destruction. One can admire the craftsmanship and statesmanship from the past as we move forward and create the future of new complexities. We are at the crossroad of human history. Social media and digital infrastructure have already changed the social transactions of human beings forever. Intelligent robots, drones, digital monitoring, ever-evolving decision-making algorithms, consumer analytics are impacting human transaction. The rapidly enabling tech environment is bound to have a long-lasting impact on the human interface of the healthcare delivery system; the medical professionals and the healthcare workers.
Hausdorff dimension of intersections with planes and general sets
Authors: Mattila Pertti
Published: September 2021

We give conditions on a general family

P_{\lambda}\colon \R^n\to\R^m

,

\lambda \in \Lambda

, of orthogonal projections which guarantee that the Hausdorff dimension formula

\dim A\cap P_{\lambda}^{-1}\{u\}=s-m

holds generically for measurable sets

A\subset\R^n

with positive and finite

s

-dimensional Hausdorff measure,

s>m

, and with positive lower density. As an application we prove for measurable sets

A,B\subset\R^n

with positive

s

- and

t

-dimensional measures, and with positive lower density that if

s + (n-1)t/n > n

, then

\dim A\cap (g(B)+z) = s+t - n

for almost all rotations

g

and for positively many

z\in\R^n

.
Profiling Skin Microbiome in Healthy Young Adult Representing Javanese, Papuans, and Chinese Descent in Indonesia
Authors: Vania Stella , Malik Amarila
Published: September 2021

Skin serves as the first physical barrier and biological barrier by the colonization of commensal bacteria to prevent pathogen invasion. It was known that the disruption on normal commensal microbiota composition or dysbiosis causes skin diseases, while the skin microbiota diversity itself is influenced by several factors, one of them is ethnicity. This study shows the influence of ethnicity factor in Papuans, Javanese, and Chinese descent young adults living in Jakarta on skin microbiome profiles. The microbiota genomic DNA are extracted from the face skin samples and sequenced with Next Generation Sequencing method to be further analyzed. The result shows that individuals with the same ethnic background share similar skin microbiome characteristics. The greatest skin microbiome alpha diversity is shown by the Papuans and the Chinese descent the smallest. Ethnicity factor that shows statistically significant differences in interindividual dissimilarities are independent of other intriguing factors such as age, geographical location, etc. Therefore the ethnic origin of individuals especially from three ethnics above is a factor to be considered in skin microbiome research and the skin microbiota composition can be used for potential future applications.
Evaluation of Bacterial Biofilm as Biosensor for Detecting Phenol, Catechol, and 1,2-dihydroxynaphthalene
Authors: Iswantini Dyah , Ghozali Ali Aulia , Kusmana Cecep , Nurhidayat Novik
Published: September 2021

Monitoring of water quality from the presence of polyaromatic hydrocarbon (PAHs) compounds and its derivates are important for keeping the healthy aquatic environment. Some of those derivates are phenol and several related compounds sharing simmilar structures. This reseach aimed for the detection of those phenol and several similar compounds monitoring due to PAHs degradation. Three identified bacterial isolates of Pseudomonas aeruginosa, Staphylococcus sciuri, and Bacillus amyloliquifaciens were selected based on their phenol degradation characters. On physiological properties all three isolates were observed to degrade several hydrophobic substances such as for naphthalene and anthracene. Yet, genetic analysis indicated that the phenolic degradating oxygenase gene was detected only in the P. aeruginosa and S. sciuri. Applying those isolates for biofilm as biosensor showed a sufficient analytical performance such as their limit of detection between 0.1-0.5 μM.
The Effect of Feed Supplementation with Fermented Red Seaweed (Kappaphycus alvarezii) on Growth and Survival of White Shrimp (Litopenaeus vannamei) Post-Larvae Culture
Authors: Suantika Gede , Situmorang Magdalena Lenny , Saputra Felicia Irene , Alviredieta Ulya , Aditiawati Pingkan , Putri Sastia Prama
Published: September 2021

This study was aimed to investigate the effect of novel shrimp diet supplemention with fermented red seaweed Kappaphycus alvarezii on growth and survival of whiteleg shrimp (Litopenaeus vannamei) post-larvae culture. The research consisted of three consecutive steps: (1) preliminary study on Kappaphycus alvarezii fermentation, (2) feed formulation and proximate analysis, (3) performance test of commercial feed (C), commercial + 0.5% K. alvarezii (EF1), and commercial + 1.5% fermented K. alvarezii (EF2). Following 15 days of feeding, the highest biomass, specific growth rate and survival were achieved in EF2 treatment (1.60±0.21 g, 10.88±0.86%/d, 91.67±1.53%), significantly different from control (0.99±0.09 g, 7.72±0.63%/d, 47.00±5.00%) (p<0.05). Overall, this study suggested that the dietary supplementation of 1.5% fermented K. alvarezii can enhance the growth and survival of whiteleg shrimp during the nursery phase.
Effect of Ethylene Glycol on Structural Integrity at Each Stage of Preantral Follicle Development Post Vitrification of Rat Ovary-Histological Analysis
Authors: Anita Nova , Abinawanto Abinawanto , Jusuf Ahmad Aulia , Bowolaksono Anom , Saoemi Huriyah Adani
Published: September 2021

The structure of follicular tissue affects the ability to maintain the structural integrity of follicles against cryoinjury post-vitrification. Histological analysis was conducted on the structural integrity of each stage of preantral follicles post-vitrification using 7.5% and 15.0% doses of ethylene glycol (EG), and ovarian sections with HE staining were observed using an Olympus CX21 microscope connected to Optilab 3.0 lens and Image Raster software. Analysis was conducted on the ovarian cortex in the tracing line area using polygon measure tools to obtain follicle density (follicles/mm2) and follicle index (%) data. The result showed that the EG group 7.5% (KP1) increased follicle density compared to the vitrified group (KKV) in primordial (15.83±1.77) and primary (22.94±8.51) stages. Meanwhile, KP2 (EG 15%) was in primordial (41.92±6.45), primary (11.69±1.95), secondary (33.48±3.63), and tertiary (5.93±0.69) stages. KP1 increased grade 3 follicle index compared to KKV in primary (27.66±2.34), secondary (32.41±6.99), and tertiary (25.00±5.00) stages. Meanwhile, KP2 was in primary (26.87±6.68) and tertiary (25.00±5.00) stages. Both doses of 7.5% and 15.0% EG were able to maintain structural integrity at certain stages of preantral follicles. Secondary and tertiary follicles are the best stages in maintaining grade 3 follicular integrity with the addition of 7.5% EG.
Effects of incorporation levels of Pueraria phaseoloides leaf flour on carcass characteristics and chemical composition of meat from local rabbit (Oryctolagus cuniculus) in South-East Gabon
Authors: Thiam Mamadou , Tovignon Gilbert Comlan  Zougou , Toure Abdourhamane Ibrahim , Kimse Moussa , Obiang Cédric Sima , Mboko Arsène Valery , Matumuini Férence Ndzani , Nono Frédéric Christol Ngansop , Engonga Louis Clément Obame , Ondo Joseph-Privat , Tendonkeng Fernand , Miegoue Emile , Boukila Benoit , Tedonkeng Etienne Pamo
Published: September 2021

The objective of this study was to contribute in improving knowledge on rabbit feeding in Gabon. This work was conducted with the aim of studying carcass characteristics and chemical composition of meat from rabbit induced by feeds containing P. phaseoloides. To that effect, 20 young female rabbits from local breed, weighing averagely 611 ± 33.20 g and aged about 6 weeks were randomly distributed in 4 groups of 5 animals each. The groups R0, R15, R20 and R25 were fed rations containing respectively 0%, 15%, 20% and 25% of P. phaseoloides. At the end of the trial, animals were slaughtered then eviscerated in order to evaluate carcass characteristics. Muscles were taken, ground and mixed for chemical analysis. No matter the ration, carcass characteristics showed no significant difference (p > 0.05). Highest protein contents in meat were recorded in animals from R15 (23.90% DM) and R20 (22.46% DM). The lowest fat content (5.41% DM) was that of animals from R25, followed by that from R20 (6.67% DM). Based on these results obtained, the ration containing 20% Pueraria phaseolides (R20) could be recommended.
Diversité de la flore ligneuse à l’intérieur du Parc National de Waza (Cameroun)
Authors: Jiagho Evaliste Rémi , Banoho Louis-Paul-Roger Kabelong , Feumba Rodrigue Aimé
Published: September 2021

Le Parc National de Waza est une aire protégée de renommée internationale. Il est l’un des plus emblématiques que compte le Cameroun, mais fait face à des pressions anthropiques et d’origine naturelle qui menacent l’intégrité de ses ressources. La présente étude avait pour objectif d’améliorer la connaissance de la flore et de la végétation ligneuse afin de permettre de mieux bâtir les stratégies de gestion de ce parc. Pour y parvenir, un inventaire de la flore ligneuse a été réalisé en 2016, avec la méthode des transects couplée à celle des quadrats de 25 m x 50 m. Le comptage et la mesure des paramètres dendrométriques, ainsi que les observations effectuées à l’intérieur de ces quadrats ont permis d’étudier les différents paramètres qualitatifs et quantitatifs de la ressource ligneuse, dont la richesse spécifique et les indices de diversité. Il en ressort que le parc abrite 38 espèces appartenant à 33 genres répartis dans 19 familles. L’indice de Shannon Weaver est de 2,95 et l’équitabilité de Piélou est de 0,56. Ces indices montrent que l’écosystème reste encore relativement riche, même si les menaces de la dégradation de ses ressources sont perceptibles. Il importe de mettre sur pied les stratégies efficaces de gestion de cette aire protégée et de sa périphérie afin de limiter les menaces auxquelles elle fait face.

 

English title: Diversity of the woody plants species within the Waza National Park (Cameroon)

Waza National Park is an internationally renowned protected area. It is one of the most emblematic in Cameroon, but faces anthropogenic and natural pressures that threaten the integrity of its resources. The purpose of the study was to improve knowledge of the flora and woody vegetation in order to better build management strategies for this park. To achieve this, an inventory of the woody flora was carried out, using the transect method coupled with that of 25 m x 50 m quadrats. The counting and measurement of dendrometric parameters, as well as the observations made inside these quadrats, made it possible to study the various qualitative and quantitative parameters of the woody resource, including specific richness and diversity indices. It appears that the park is home to 38 species belonging to 33 genera distributed in 19 families. The Shannon Weaver index is 2.95 and the Piélou fairness is 0.56. These indices show that the ecosystem is still relatively rich, even if the threats of the degradation of its resources are perceptible. It is important to set up effective management strategies for this protected area and its periphery in order to limit the threats it faces.
Evaluation des activités polyphénoloxydases, peroxydases et l’accumulation des composés phénoliques dans la résistance du manioc stimulé au Benzo (1,2,3) thiadiazol-7-carbothionic acid-s-méthyl ester vis-à-vis de Colletotrichum gloeosporioides Penz
Authors: Elian Hubert DieuBéni , Fotso  , Djeuani Astrid Carole , Djamndo Djasbé Mathurin , Omokolo Ndoumou Denis
Published: September 2021

Le manioc (Manihot esculenta Crantz) est une plante pluriannuelle cultivée dans les régions tropicales de la plupart des pays d’Afrique, d’Asie et d’Amérique Latine. Il contribue fortement à la sécurité alimentaire. L’objectif de cette étude est d’analyser le comportement des polyphénoloxydases (PPO), de la peroxydase (POX) et des composés phénoliques chez trois variétés de manioc au cours de leur induction au Benzo (1,2,3) thiadiazol-7-carbothionic acid-s-methyl ester (BTH) vis-à-vis de C. gloeosporioides. L’induction de résistance a été évaluée par des PPO , de la POX et de la teneur en composés phénoliques totaux solubles accumulés avant et après l’inoculation (I) par C. gloeosporioides, la stimulation (St) par BTH et de la stimulation suivie de l’inoculation (St+I). Avec les différents traitements, on note une augmentation progressive et significative (p<0,05) de l’activité de ces enzymes et des teneurs en phénols dans les feuilles et les tiges chez les trois variétés. Ces résultats montrent bien que le BTH stimule les mécanismes de défenses des plantes de manioc, bien que ces mécanismes diffèrent en fonction des variétés.

 

English title: Evaluation of polyphenoloxidase and peroxidase activities and accumulation of phenolic compounds in the resistance of stimulated cassava to Benzo (1,2,3) thiadiazol-7-carbothionic acid-s-methyl ester against Colletotrichum gloeosporioides Penz.

Cassava (Manihot esculenta Crantz) is a perennia plant cultivated in the tropical regions of most countries in Africa, Asia and Latin America. It contributes strongly to food security. The aim of this study was to analyze the behavior of polyphenoloxidases (PPO), peroxidase (POX) and phenolic compounds in three cassava varieties during their induction to Benzo (1,2,3) thiadiazol-7-carbothionic acid-s-methyl ester (BTH) against C. gloeosporioides. Resistance induction was evaluated by PPO, POX and total soluble phenolic compounds content accumulated before and after inoculation (I) with C. gloeosporioides, stimulation (St) with BTH and stimulation followed by inoculation (St+I). With the different treatments, there was a progressive and significant (p<0.05) increase in the activity of these enzymes and in the phenol contents in the leaves and stems of the three varieties. These results show that BTH stimulates the defense mechanisms of cassava plants, although these mechanisms differ according to the varieties.
Effectiveness of Functional Electrical Stimulation - Cycling Treatment in Children with Cerebral Palsy
Authors: Özen Natalya , Unlu Ece , Karaahmet Ozgur Zeliha , Gurcay Eda , Gundogdu Ibrahim , Umay Ebru
Published: September 2021

AimThe purpose of this study was to evaluate the effects of functional electrical stimulation (FES) bicycle therapy system on motor function, gait pattern, spasticity, daily living activities, and aerobic capacity in children with cerebral palsy (CP) and to compare the results with sham stimulation and standard treatment.MethodsPatients with cerebral palsy who received botulinum toxin type-A injections to lower extremities and those with Gross Motor Function Measure Classification System (GMFCS) levels I – III, were included in the study. Twenty-five patients were randomly assigned into three treatment groups for 4-weeks: Group 1, FES-cycling and standard treatment; Group 2, Sham stimulus FES-cycling and standard treatment; Group 3, Standard treatment. Clinical assessment tools included the Modified Ashworth Scale (MAS), Modified Tardieu Scale (MTS), Pediatric Functional Independence Measure (WeeFIM), GMFCS, Gross Motor Function Measure-88 (GMFM-88), selective motor control tests, 6-minute walk test, and Visual Gait Analysis (VGA).ResultsIn all groups, there were significant improvements in MAS, MTS, WeeFIM, GMFM-88, 6-minute walk test, and VGA scores. No changes in GMFCS levels were observed in any group. At the end of the study, there was no significant difference among the groups in terms of any clinical assessment parameter.ConclusionsAll groups showed statistically significant improvements in motor function, walking pattern, spasticity, daily living activities, and aerobic capacity in patients with CP following the rehabilitation period. Although FES-cycling demonstrated no superiority over the other approaches and provided no additional benefit to the results, FES appears to be safe and well-tolerated in children with CP, at least as much as standard exercise treatment.
Breast metastasis from rectal carcinoma: A case report and review of the literature
Authors: -Dan Wang Dan , -Jin Yang Su , -Xian Chen Wei , -Xian Chen Wei
Published: September 2021

BackgroundMetastasis from extramammary primary tumor to breast is extremely rare. Case SummaryA 59-year-old woman with 1-year history of rectal cancer presented with asymptomatic breast mass. At 16 months after the diagnosis of rectal mucinous adenocarcinoma, a breast mass was confirmed by ultrasonography and identified by pathology and immunohistochemistry as a metastasis from the rectal cancer. Treatments included chemotherapy (6 cycles: 300 mg irinotecan on day 1, 4.5 mg raltitrexed on day 2, 450 mg bevacizumab on day 3), radiotherapy, and surgical resection. Two years of follow-up examinations (6-months intervals) showed no evidence of recurrence or novel distant metastasis. ConclusionBreast metastasis from rectal carcinoma is a rare secondary malignancy. Final diagnosis can be established by histopathology and immunohistochemistry.
Timed Average Mean Maximum Velocity (TAMMV) of Cerebral Blood Flow of Children and Adolescents with Sickle cell Disease: correlation with clinical and hematological profiles in country
Authors: Chukwu Bartholomew , Menezes Lyra , Fukuda Thiago , Filho Jamary , Goncalves Marilda
Published: September 2021

BackgroundDetection of abnormal TAMMV with transcranial Doppler is fundamental in primary stroke prevention in children with sickle cell disease (SCD). The study aimed at evaluating TAMMV and correlating it with clinical and hematological profiles of children and adolescent with SCD. MethodsTranscranial Doppler was performed on subjects aged 2-16 years, using a 2 MHz probe placed over the transtemporal windows. Pulse oximetry was used to determine the peripheral oxygen saturation while clinical and hematological profiles were retrieved from their medical records.Results One hundred and thirty five patients were recruited. The mean TAMMV was 125cm/s. Patients with HbSS had a significantly higher TAMMV (131cm/s) than those with HbSC (107cm/s). Only one (0.74%) patient had abnormal TAMMV. TAMMV correlated inversely with oxygen saturation, Hct and patient’s age, and positively with white cell and platelet counts. Previous history of acute chest syndrome (ACS) and recurrent painful crises increased the risk of development of abnormal and conditional velocity.Conclusion Frequency of abnormal TAMMV in this study was low. Younger children and those with HbSS had higher TAMMV. Age, oxygen saturation and haematocrit correlated negatively while white cell and platelet counts correlated positively with TAMMV. Previous history of ACS and recurrent bone pain were associated with increased risk of having abnormal and conditional TAMMV.
‘First Generation’ Romantic Poets
Authors: Bushell Sally
Published: September 2021

This short film introduces students to the concept of two generations in the Romantic
period. It considers why this might be the case for this period of literature when
it is not for others, proposing three reasons: the relative brevity of the period,
the effect of a period of war followed by peace, the division of major male writers
into these two groups.

The second half of the film then focusses on the First Generation and the
contemporary concept of “the Lake School”. This relates primarily to William
Wordsworth and his decision to write in withdrawal from the world in the North of
England. Core principles of British Romanticism are articulated by him – that poetry
is of the people and in the language of the people and that it is fundamentally
expressive. Wordsworth was joined in the lakes by Coleridge and Southey, allowing
these poets to be called “The Lake School”. However, these principles were not
universally accepted and Francis Jeffrey (editor of The Edinburgh Review) took every
opportunity to attack them.
Romantic Criticism
Authors: Wu Duncan
Published: September 2021

Romantic critical writing is presented as exemplary of the Romantic period: it
crossed lines of class and taste; it was often transgressive, so much as to lead to
the imprisonment of the writer; and it was essentially new. It created a new kind of
writer, the literary journalist, and it was the seed-bed of literary
experimentation—which led to the creation of forms of writing which are commonplace
today, such as sports journalism.
Other Romanticisms are Available
Authors: Strachan John
Published: September 2021

This Routledge Historical Resource is principally concerned with British and Irish
Romanticism. But it should not be forgotten that Romanticism was not purely a
phenomenon confined to the British Isles, and that, there were nineteenth-century
forms of Romanticism evident throughout Europe, and in North and South America. This
video reminds of this, and of the fact that modern controversies about ‘Romanticism’
as a concept - and as a cultural form in contradistinction to classicism -
originated in Germany and not in Great Britain. It identifies forms of Romanticism
from Russia to Portugal, from the United Sates to Brazil.
Romanticism and Classicism
Authors: Wu Duncan
Published: September 2021

This essay traces the debate concerning Romantic and Classic back to the Schlegel
brothers and then reviews the more recent comments of Walter Jackson Bate. Its
thesis is that although the binary of Classic and Romantic may once have been
useful, modern critics find it more helpful to refer to the Enlightenment,
pre-Romanticism, and Romantic writers—labels that make fewer assumptions.
Comparison of Psychometric Properties of the Postural Assessment Scale for Stroke Patients with Berg Balance Scale and Brunel Balance Assessment for Chronic Stroke
Authors: DEMİRCİ Cevher , AYDOĞAN ARSLAN Saniye , YAKUT Hatice , SERTEL Meral , KUTLUHAN Süleyman
Published: September 2021

Objective: The purpose of the present study was to verify the validity of the Turkish version of the Postural Assessment Scale for Stroke Patients (PASS) in chronic stroke, and to compare its validity, reliability, and responsiveness characteristics with Berg Balance Scale (BBS), Brunel Balance Assessment (BBA).Method: 49 chronic stroke patients were included in the study. Those participating in the study were applied PASS, BBS and BBA on the first day. To measure the test-retest reliability, the second assessment for the scales was performed by the same physiotherapist 1 week after the initial evaluation.Results: According to the correlation analysis, a very high level of correlation was found between the PASS first and second assessment scores (r = 0.984). Cronbach Alpha Coefficient was found to be 0.995 (excellent). The Intraclass Correlation Coefficient (ICC) value for PASS was 0.995. A high level of correlation was found between PASS, BBS and BBA. No ceiling and floor effects were observed for PASS.Conclusion: The results of our study showed that Turkish version of PASS is a valid and reliable scale in chronic stroke patients and all these three scales, which are commonly used to assess balance in stroke patients are, made repeatable measurements in patients with chronic stroke. The test re-test reliability values of these three scales were found to be excellent. Minimal detectable change values, which are used to determine a real change in balance in stroke patients by clinicians, were found to be close to each other for these balance scales.
Tip 2 Diyabetli Bireylerin Hastalık Yönetiminde Karşılaştıkları Engellerin Değerlendirilmesi
Authors: ÜSTÜNDAĞ Şuheda , DAYAPOĞLU Nuray
Published: September 2021

Amaç: Araştırma Tip 2 diyabet hastalarının hastalık yönetiminde karşılaştıkları engelleri ve bu engelleri etkileyen faktörleri değerlendirmek amacıyla yapılmıştır.Yöntem: Tanımlayıcı türde yapılan bu araştırmanın verileri, Atatürk Üniversitesi Sağlık Araştırma ve Uygulama Merkezinin Endokrinoloji klinik ve polikliniğinde, araştırma kriterlerine uyan 120 Tip 2 diyabet hastasından elde edilmiştir. Verilerin toplanmasında Hasta Tanıtıcı Formu ve Diyabette Engeller Ölçeği kullanılmıştır. Verilerin analizi bilgisayar ortamında SPSS 22.00 istatistik paket programı ile yapılmıştır.Bulgular: Çalışmaya alınan hastaların Diyabette Engeller Ölçeği alt boyutlarından aldıkları puan ortalamaları incelendiğinde; en yüksek puan ortalamasının 9.55±4.53 puan ile Diyabette Başa Çıkma Engelleri alt boyutuna, en düşük puan ortalamasının ise -1.76±6.13 puan ile İlaç Kullanım Engelleri alt boyutuna ait olduğu bulunmuştur. Hastaların cinsiyeti, yaşı, medeni durumu, eğitim durumu ve ekonomik durumu gibi sosyodemografik özellikleri ile tanı süresi, tedavi şekli, tedaviye uyum algısı, kan şekerine bakma durumu, diyete uyum algısı, egzersiz yapma durumu, doktora gitme sıklığı, diyabete bağlı komplikasyon gelişme durumu ve ek hastalık olma durumu gibi hastalığa ilişkin özellikleri ile Diyabette Engeller Ölçeği alt gruplarına ait puan ortalamaları arasında istatistiksel olarak anlamlı bir fark olduğu tespit edilmiştir (p<0.05).Sonuç: Tip 2 diyabet hastalarının bazı sosyodemografik ve hastalığa ilişkin özelliklerinin diyabet yönetiminde karşılaşılan engelleri etkilemektedir. Tip 2 diyabet hastalarının en fazla diyabetle başa çıkmada engel yaşadıkları ve ilaç kullanımında daha az engel yaşadıkları sonucuna varılmıştır.
Literatura y teatro en el cinismo de Diógenes de Sínope y Nietzsche
Authors: Torres Estrada Andrés Camilo
Published: September 2021

Este artículo relaciona la biografía de Diógenes de Sínope, hecha por Diógenes Laercio, y Ecce Homo, la autobiografía de Friedrich Nietzsche. A través de una concepción del teatro, el propósito es relacionar ambos textos biográficos encontrando una escritura filosófica particular que se separa de las formas usuales de la teoría. A partir de este análisis es posible demostrar que ambos autores consideraban inseparables la forma y el contenido de su filosofía, que tenían una idea de la práctica indiferenciable de la teoría, y que sus maneras particulares de expresarse constituían por sí mismas una forma de pensamiento: la resistencia al sentido último, lo que los une al teatro y a la literatura.
Experimental Analysis on Mechanical Properties of Friction Stir Welding in Dissimilar Aluminum Alloys
Authors: Anganan K. , Narendran R.J . , Naveen Prabhu N , Rahul Varma R , Sivasubramaniyam R
Published: September 2021

Friction stir welding (FSW) is an innovative solid state joining technique and has been employed in industries for joining aluminum, magnesium, zinc and copper alloys. The FSW process parameters such as tool, rotational speed, welding speed, axial force, etc play major role in deciding the weld quality. A mathematical modeling was developed based on experiments to predict the tensile strength of dissimilar FSW aluminum alloys. The maximum tensile strength of 210 MPa can be obtained at the tool rotational speed of 1100 rpm, welding speed of 35mm/min and an axial load of 7 kN is the Optimum welding parameters.
Dyslexia as the most prevalent form of specific learning disabilities
Authors: Zavadenko Nikolay N.
Published: September 2021

Dyslexia is the most common form of specific learning disabilities. Dyslexia is observed in 5-17.5 % of schoolchildren, and among children with specific learning disabilities, it accounts for about 70-80 %. Usually, dyslexia manifests itself as the inability to achieve an appropriate level of reading skills development that would be proportional to their intellectual abilities and writing and spelling skills. Secondary consequences of dyslexia may include problems in reading comprehension and reduced reading experience that can impede the growth of vocabulary and background skills. The review discusses neurological management of reading and writing as complex higher mental functions, including many components that are provided by various brain areas. The principles of dyslexia classification, the main characteristics of its traditionally defined forms are given: phonemic, optical, mnestic, semantic, agrammatic. The article analyzes the cerebral mechanisms of dyslexia development, the results of studies using neuropsychological methods, functional neuroimaging, and the study of the brain connectome. The contribution to dyslexia development of disturbances in phonological awareness, rapid automated naming (RAN), the volume of visual attention (VAS), components of the brain executive functions is discussed. The origin of emotional disorders in children with dyslexia, risk factors for dyslexia development (including genetic predisposition) are considered. Dyslexia manifestations in children are listed, about which their parents seek the advice of a specialist for the first time. In the process of diagnosing dyslexia, attention should be paid to the delay in the child’s speech development, cases of speech and language development disorders and specific learning disabilities among family members. It is necessary to consider possible comorbidity of dyslexia in a child with attention deficit hyperactivity disorder, dyscalculia, developmental dyspraxia, disorders of emotional control and brain executive functions. Timely diagnosis determines the effectiveness of early intervention programs based on an integrated multimodal approach.
Evaluation of R-Factor for 5 Storey RC Frame (IMRF) Building
Authors: Kushwah Aditya , Kushwah Aditya , Kushwah Aditya
Published: September 2021

According to IS 1893 part 1 (2016), the philosophy of earthquake resistant structures allows for some damages and inelastic lateral displacement in the structure for energy dissipation during an earthquake. The non-linear behaviour of elements in the structure plays a crucial role in earthquake resistance. There are three detailed classes for distinct seismic zones in different national codes. In India, the draught IS 13920 advocated the usage of IMRF (intermediate moment resisting frame) in zones II and III. The 5 story IMRF is designed and detailed as per IS 1893 (part 1) 2016, IS 13920 (2016), IS 1893 draft, IS 13920 draft, IS 456 (2000). In addition, nonlinear static pushover analysis was performed on IMRF and SMRF RC frame buildings in accordance with FEMA 356. (Displacement Coefficient method) During the analysis, two distinct load patterns (i) parabolic as per IS 1893 (part 1) 2016 (ii) fundamental mode shape are utilised, and the influence of p-delta is also taken into account when evaluating the response reduction factor. The analysed R-factor for studied frame building for fundamental mode shape loading was found to be near to the initial estimated R-factor during the design.