bluuebunny/crossref_metadata_2025 huggingface dataset:
Żywot Dulceliny z Digne jako źródło do badań nad pobożnością kobiecą w XIII wieku
Authors: Kras Paweł
Published: March 2023

The aim of this article is to analyse the emergence, organisation and piety of the first communities of Beguines in Provence, referred to as the “Ladies of Roubaud”, whose initiator and leader was Douceline of Digne (ca 1215-1279), sister of the blessed Hugh of Digne, a charismatic preacher and one of the leaders of the Franciscan Spirituals. Against the background of the broad social and religious transformations at the turn of the 12th and 13th centuries, the author presents the life and activities of Douceline, which were described in detail in her Life (Li Vida de la benaurada sancta Doucelina). In many respects, this is a unique hagiographic text. It was written at the end of the 13th century in Provençal, and its author was Felipa of Porcelet, a pupil of and successor to Douceline. The Vida itself is preserved in a single copy, now stored in the Bibliothèque nationale de France under the reference number Fond français 13503. This hagiographic text functioned only within the Beguine communities established by Douceline and performed formative functions for their members. This article analyses the specific religiosity of Douceline of Digne, which was, on the one hand, inspired by the first “pious women” in the Low Countries, and yet, on the other, was primarily influenced by Franciscan medieval piety. In terms of structure and content, the Vida was modelled on the Life of St. Francis, compiled by St. Bonaventure. In this article, Douceline’s life is examined against the background of other hagiographic texts devoted to the Beguines, who in the thirteenth century promoted a new and highly popular ideal of female religiosity.
Relationship between learning style and learning context: an integrative review
Authors: Pereira de Oliveira Almeida Elzenir , Sousa Milena Nunes Alves de
Published: March 2023

Background: Higher education in recent years has been marked by significant changes and has impacted on the educational process, requiring pedagogical and professional actions capable of translating performances that efficiently meet the challenges faced by professional practice in different contexts of the teaching-learning process.Methods: In order to investigate the relationship between students' learning style and learning context, a systematic review was performed according to both the available literature and the guiding question: what is the relationship between the student learning style and the learning context? Then, the descriptors were defined: learning style and learning context. The search was processed using the Education Resources Information Center database, which provided eleven articles selected by a defined inclusion and exclusion criteria. All items were organized and analyzed according to whether or not they have influence on the learning style and on the learning context.Results: Based on the guiding question, all articles were grouped into only one category: the relationship between the student learning style and the learning context. Thus, it was found that 73% (n = 8) showed a positive relationship between the student learning style and the learning context.Conclusion: This study demonstrated that there is a relevance between the student learning style andt he learning context, and this relationship helps teachers to provide satisfaction, autonomy and effectiveness regarding the student learning process. Moreover, it is important that teachers recognize this relationship so that they can propose new methods of teaching, learning and assessment that are appropriate to the identified styles.
Efeitos do veneno de abelha no sistema nervoso central para o tratamento da doença de Parkinson
Authors: Sousa Milena Nunes Alves de , Farias Gita Linhares , Santos Henrique da Cunha , Dantas Isabella Rolim , Rodrigues Rayanna Régia do Nascimento , Maracajá Patrício Borges
Published: March 2023

Propôs-se analisar os efeitos do veneno de abelha no Sistema Nervoso Central para o tratamento da Doença de Parkinson. Uma Revisão integrativa foi realizada, na qual foi realizada uma consulta nas bases de dados Biblioteca Virtual de Saúde e Public Medline or Publisher Medline, sendo encontrados, respectivamente,11 e 14 publicações. Foram aplicados critérios de exclusão (repetições e documentos que não estavam na formatação de artigos), resultando na seleção de dez artigos. Após análise, foi visto que 33,3% (n=4) apresentaram melhorias de marcha. Além disso, 16,6% (n=2) mostraram um efeito benéfico sobre as atividades de vida diárias e 41,8% (n=5) indicaram o efeito neuroprotetor. Diante dos achados, observou-se que o veneno de abelha pode reduzir os sintomas da Doença de Parkinson ao melhorar a marcha do paciente e ao apresentar um efeito neuroprotetor sobre alguns neurônios, inclusive os dopaminérgicos (envolvidos nessa doença).
Desenvolvimento de Protótipo de Sistema Especialista para o Auxílio no Diagnóstico de Esquizofrenia
Authors: Santos de Azevedo Marcelo , De Araújo Batista Suárez Larissa , Túlio Caldas Marcus , Sousa Milena Nunes Alves de , Bezerra de Sá de Sousa Nogueira Tiago , Ribeiro Suárez Pablo
Published: March 2023

A Classificação Estatística Internacional de Doenças e Problemas Relacionados com a Saúde - 10º Edição descreve diretrizes indispensáveis para que seja possível diagnosticar patologias, estudo encorajado pela complexidade no diagnóstico, parte do atendimento médico. Parte da CID-10, o estudo das faculdades mentais, se desprendeu como ramo da ciência médica consideravelmente a pouco tempo, desta forma, o presente trabalho propõe a melhoria de métodos para diagnóstico de psicopatologias, mais especificamente esquizofrenias, com base nas diretrizes da CID-10, promovendo um protótipo de aplicativo para dispositivo móvel capaz de auxiliar psiquiatras no diagnóstico esquizofrênico. Tal protótipo de aplicativo foi desenvolvido para a plataforma Android, disponível para uma variedade de dispositivos móveis, como smartphones e tablets.
Functional Structure and Stability of Steppe Vegetation Communities with Rare Plant Species in Left Volga Bank of Saratov Region
Authors:   Saratov State University, Nevskiy S. A. , Davidenko O. N. ,   Saratov State University
Published: March 2023

The article is devoted to the estimation of functional structure and stability steppe vegetation communities with rare plant species in the left Volga bank of Saratov region. A standard distributions of plants species (geometric rows and MacArthur), corresponding to the experimental one, and their comparison with the help of normalized Shannon index were applied. The index formed calculation method was offered. Different groups of community stability were established and its ecological interpretation was performed.
Comparative Characteristics of Microbial Ecological Systems Some Species of the Plant Louse in Saratov Region
Authors:   Saratov State University, Peterson A. M. , Glinskayа E. V. ,   Saratov State University, Malyshina M. S. ,   Saratov State University
Published: March 2023

Microbial ecological systems of Myzus cerasi F., Eriosoma ulmi L., Hyalopterus pruni L. in territory of the Saratov region was studied. 30 bacteria species belonging to 15 genera was revealed. Curtobacterium flacumfaciens, Erwinia carotovora and Erwinia rhapontici causing diseases of plants were among them. Quantity characteristic and occurrence of all taken bacterium species were shown. The comparative characteristics of microbial ecological systems studied species of the plant louse are presented.
The Distribution of Gametophytic Apomixis Among the Asteraceae Spesies from European Part of Russia
Authors:   Saratov State University, Kochanova I. S. , Lisitzkaya N. M. ,   Saratov State University, Kashin A. S. ,   Saratov State University, Kirillova I. M. ,   Saratov State University
Published: March 2023

In a course of investigation of seed productivity under the pollenless regime of flowering and cytogenetic investigation in 250 natural populations of 166 species of 62 the Asteraceae genera from European part of Russia gametophytic apomixis has been discovered in populations of 37 species from 20 genera. For the first time this mode of reproduction has been revealed in 26 species from 10 genera.
Application of Electrooptical Analysis of Microbial Suspensions Method for Bacteriophage Specificity Determination
Authors:   Institute of Biochemistry and Physiology of Plants and Microorganisms RAS, Karavaeva O. A. , Guliy O. I. ,   Institute of Biochemistry and Physiology of Plants and Microorganisms RAS, Pavliy S. A. ,   Saratov State University, Volodin D. Yu. ,   Saratov State University, Ignatov O. V. ,   Institute of Biochemistry and Physiology of Plants and Microorganisms RAS
Published: March 2023

The possibility of using electro-optical analysis of microbial suspensions for determining the specificity of bacteriophage isolated from cells of Azospirillum brasilense Sp7 infection of microbial cells was investigated. To determine the selectivity was also used a standard method of falling drops. Method of «falling drops» also was applied for determination of selectivity of the bacteriophage infection of microbial cells. The experiments were conducted with cells of bacterial strains Azospirillum brazilense Sp7, Azospirillum brazilense Sr75, Azospirillum brazilense Cd, Azospirillum brazilense Sp245 Azospirillum lipoferum Sp59b and Azospirillum brazilense Sr65. There was a correlation of experimental data obtained by electrooptical analysis of microbial suspensions and the standard method of «falling drops». The conclusion about possibility of applying the method of electro-optical analysis of microbial suspensions for determining the selectivity of the bacteriophage infection of microbial cells was made.
The Predictive Value of Abdominal Ultrasonography Compared to CT Scan for the Evaluation of Pediatric Lymphoma
Authors: Jahanshahi Amirreza , Hiradfar Amirataollah , Mahboubi Shabnam , Hosseinpour Feizi Abbasali , Shakeri Bavil Abolhassan , Mostafavijabbari Ali , Yousefi Nodeh Hamid Reza , Raeisi Sina
Published: March 2023

Background: Given the children's susceptibility to the harmful radiation of computerized tomography (CT) scans, ultrasonography can be a good alternative in staging pediatric lymphoma. The present study aimed to assess the predictive value of abdominal ultrasonography compared to CT scan in children with lymphoma.
Materials and Methods: Fifty-two children with confirmed lymphoma were included in the present cross-sectional analytical study and underwent CT scan. The staging was performed based on the involvement pattern, lymph nodes, liver involvement, spleen involvement, and lymph node sizes. Then, the patients underwent ultrasonography followed by re-staging. The data were analyzed by SPSS 26. p-value less than 0.05 was considered statistically significant.
Results: The included patients consisted of 32 (61.5%) boys and 20 (38.5%) girls with the median age of 6.0 years (4.3-8.0). The number of the patients with positive paraaortic lymphadenopathy, iliac chain lymphadenopathy, mesenteric lymphadenopathy, increased liver size, changed liver parenchyma, increased spleen size, changed spleen parenchyma, increased kidney size, and changed kidney parenchyma evaluated by sonography and CT scan were 24 (46.2%) and 26 (50.0%), 3 (5.8%) and 3 (5.8%), 34 (65.4%) and 34 (65.4%), 49 (94.2%) and 48 (92.3%), 23 (44.2%) and 23 (44.2%), 45 (68.2%) and 21 (31.8%), 48 (92.3%) and 48 (92.3%), 50 (96.2%) and 50 (96.2%), and 49 (94.2%) and 48 (92.3%), respectively (p ≤ 0.001). The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of abdominal ultrasonography staging compared to CT scan were 100%, more than 90%, more than 75%, and 100%, respectively.
Conclusion: Due to the sufficient sensitivity and specificity, ultrasonography has the potential to be applied instead of CT scan for the abdominal staging of pediatric lymphoma.
DNA Methylation and the Expression of the Tumor-Suppressor Genes Protocadherin-10 and Reprimo in Pediatric Acute Lymphoblastic Leukemia
Authors: Moradi Zahra , Barati Mahmood , Azad Mehdi , Safari Alieh , Chahardouli Bahram , Rezvany Mohammad Reza
Published: March 2023

Background: Acute lymphoblastic leukemia (ALL) is the most prevalent hematologic malignancy among children. DNA methylation is well known to play a role in the initiation and progression of cancer. This research aimed to characterize the epigenetic inactivation and gene expression of Protocadherin-10 (PCDH10) and Reprimo (RPRM) in pediatric acute lymphoblastic leukemia, which is associated with epigenetic silencing in human cancers.
Materials and Methods: This case-control study included 21 children (mean age, 4.5 years) with new cases of ALL. In addition, 15 patients with ALL were selected following treatment. Samples of bone marrow were extracted from each patient. Prior to and following treatment, 15 paired samples were analyzed. In addition, ALL patients were compared to 18 normal controls in a case study. MS-HRM and quantitative real-time PCR were utilized to examine the DNA-promoter methylation and gene expression of two TSGs from each group.
Results: Expression of PCDH10 was significantly up regulated in treatment ALL group compared to the new cases of ALL patients (P= 0.0119), PCDH10 gene expression was higher in the normal control group than in the new cases of ALL (P <0.0001).  RPRM gene, also had a slightly increase in gene expression in treatment ALL group compared to the new cases of ALL (P =0.0412). RPRM gene expression was higher in the normal control group than in the new cases of ALL) P = 0.0372). There was an increase in methylation in both PCDH10 and RPRM genes in new cases of ALL groups compared with treatment ALL group and normal group (P<0.0001 for both genes).
Conclusions: New cases of ALL were associated with high DNA methylation level and low gene expression of PCDH10 and RPRM genes.
Announcement of “4th International and 29th National Iranian Food Science and Technology Congress” Held in Iran
Authors: . .
Published: March 2023

The Article Abstract is not available.
Comparative Effects of Hibiscus Leaves and Potato Peel Extracts on Characteristics of Fermented Orange Juice
Authors: El-Hadary A.R.E. , Sulieman A.M. , El-Shorbagy G.A.
Published: March 2023

Background: Fermented foods are gaining interest because of their ability to improve health, as well as their good taste, and the desire of many to eat them. This investigation aimed to enhance the chemical and physical properties, sensory evaluation, and shelf life of fermented orange juice by adding liquid hibiscus leave (Hibiscus sabdariffa) and potato peel (Solanum tuberosum) extracts.
Methods: The extracts of hibiscus leaves and potato peel were added to fermented orange juice, and the samples were divided into five parts. Two parts with different concentrations of hibiscus leave extracts (5%, FHL5 and 10%, FHL10), and the other two parts with different concentrations of potato peel extracts (5%, FPP5 and 10%, FPP10). The Fifth part was fermented orange juice without any additives (PC). Then, they were estimated for the acidity, total solid solution, viscosity, carbohydrates, vitamin C, antioxidants profile, color, total microbial count, and sensory evaluation during storage time at 4±2 °C. Statistical analysis was done by IBM SPSS  version 25.0 software.
Results: The results showed no significant mean difference (p>0.05) between samples in acidity. FHL10 registered the highest values in total solid solution, vitamin C, antioxidants profile, and sensory evaluation, while FPP10 registered the highest values in viscosity and total microbial count. Also, FPP10 registered the highest values in overall acceptability (8.85±0.24, 8.78±0.26, 8.71±0.26, and 8.78±0.26 at zero, 7th, 14th, and 21st days of storage time, respectively) followed by FPP5 with no significant mean difference values (p>0.05).
Conclusion: The extracts of hibiscus leaves and potato peel can improve acceptability and shelf life of fermented orange juice summarized in the enhancement vitamin content, antioxidants profile, color, and sensory properties.
The Effectiveness of Subliminal Approach on Depression and Resilience among Women with Addict Husbands Appealing for Divorce
Authors: Kiani Rogaye , Fathi Ayatollah , Tajfar Somaye , Noori Ebrahim
Published: March 2023

Aim: Today, divorce is one of the risks threatening marital life which can create many psychological and social problems, in particular, for women, so more attention should be given to it. The objective of this study was to investigate the effectiveness of the subliminal approach on depression and resilience among women with addict husbands who were appealing to divorce.
Methods: The research method was of semi-experimental type in which a pretest-posttest with control group design was used to achieve objectives. The statistical population of the study included all the women with addict husbands appealing for divorce in the first half of 2020 who were referring to different branches of the family courts of Tehran, Iran. Among the population, 30 women meeting the inclusion criteria of the study were selected through available sampling method, and then, were assigned into two experiment and control groups by random assignment method (15 subject in each group). Both groups completed Beck Depression Inventory (1991) and Connor and Davidson’s Resilience Scale (2003). The experimental group was delivered the Subliminal therapy approach and the control group was not delivered any therapy protocol. The data was analyzed using descriptive statistics indices and covariance analysis method.
Findings: Results showed that the subliminal approach has led to significant reduction in the scores of depression (P<0.01, Ƞ2=0.63) and significant increase in the scores of resilience (P<0.01, Ƞ2=0.68) in the experiment group compared to the control group (P<0.01).
Conclusion: According to the results, it can be said that the subliminal approach is effective in reducing depression and increasing resilience in women with addict husbands who appeal for divorce. Therefore, this approach can be used as an appropriate interventional method to cure depression and increase resilience in psychological and counseling centers.
The Comparison of Effectiveness of Group Training Anger Management and Psycho-Social Empowerment on Prosocial Behaviors and Social Adjustment of Girl High School Students in Tehran City
Authors: Ghobadi Asfarjani Habibeh Khatoon , Sharifi Tayebeh , Ghazanfari Ahmad , Chorami Maryam
Published: March 2023

Aim: The purpose of this study was to comparison of effectiveness of group training anger management and psycho-social empowerment on prosocial behaviors and social adjustment of girl high school students in Tehran city.
Methods: This quasi-experimental study was conducted with a pretest-posttest design with control group and follow-up after two months. The statistical population of this study included all the high school girl students Tehran city to 125110 people were in year academic 2020-2021 and 90 girl students by random sampling were considered as the sample size in two experimental groups (each group of 30 girl students) and control (30 girl students). The experimental groups underwent group training anger management (12 sessions 90 minutes) and psycho-social empowerment (12 sessions 90 minutes), but the control group received no training and remained in the waiting list. To collect data prosocial personality questionnaire (PPQ) of Penner (2002) and adjustment inventory for school students (AISS) of Sinha and Singh (1993). Data analysis was performed using SPSS-24 software in two sections: descriptive and inferential (analysis of variance with repeated measures and Bonferroni).
Findings:The results of the study showed that both types of treatment in post-test and follow up had a significant effect on prosocial behaviors and social adjustment of girl high school students (P<0.05).  Also, group training anger management had stronger effects in improvement of aggression and social self-efficacy (P<0.05).
Conclusion:  Based on the results of this study, it can be said that group training anger management and psycho-social empowerment can be used as a treatment to improvement of prosocial behaviors and social adjustment of girl high school students in Tehran city in counseling centers and psychological services.
Identification and Introduction of Possible Inhibitors of Plasmodium Falciparum Lactate Dehydrogenase Enzyme using Computational Techniques of Drug Design and Virtual Screening based on Macromolecules
Authors: Molayi-Asl Asma , Sepehri Saghi
Published: March 2023

Introduction: Human malaria is an infectious-blood disease that is caused by the Plasmodium genus. Anopheles mosquitoes transmit malaria by biting and are well-known as the only biological carriers of this disease. The aim of this research was the identification and introduction of possible inhibitors of Plasmodium falciparum lactate dehydrogenase enzyme using computational techniques of drug design and virtual screening based on macromolecule.
Methods: In this analytical-descriptive study, 8733 compounds were initially collected from the PubChem database. In the second step, different filtrations were performed on the library compounds. The selected compounds showed good drug-like properties and pharmacokinetics. Finally, molecular docking simulations were carried out to investigate their binding mode and interactions in the enzyme's active site.
Results: The results of the present study showed that the bonds involved in the binding of the compounds with the enzyme were hydrophobic interactions and hydrogen bonds, and the π-π interaction was in the lower priority. Among the studied compounds, the best docking results were related to the compounds with identification codes CID_23603310, CID_23603337, CID_11912187 and CID_11912184 and free binding energy of -29.10, -9.06, -9.04 and -9.00 kcal/mol, respectively. In general, lipophilic parts and hydrogen bonds increased the affinity and inhibited the enzyme.
Conclusion: Based on the results, all the compounds showed suitable connections in the active site of the enzyme and can be proposed as potential effective inhibitors of Plasmodium falciparum lactate dehydrogenase enzyme.
A dimensão midiática da canção: a produção de sentido no heavy metal
Authors: Cardoso Filho Jorge Luiz Cunha
Published: March 2023

Partindo da hipótese de que as redes midiáticas contemporâneas acionam estratégias e dispositivos específicos para a produção de sentido, este artigo busca identificar, com base na análise da chamada canção popular massiva e sua articulação com o gênero musical, os princípios que norteiam a construção dessas estratégias e dispositivos mediante o emprego de três operadores

analíticos. Uma canção vinculada ao gênero musical heavy metal serve de estudo de caso para a investigação.

Palavras-chave: Heavy metal; gênero musical; canção; sociossemiótica.

ABSTRACT

Based on the hypothesis that contemporary media networks set specific strategies and devices for the production of meaning, this article aims to identify, from the analysis of popular song and its relationship with musical genres, the principles that guide the construction of such strategies and devices by means of the utilization of three analytical operators. A song from the heavy metal musical genre serves as a case study for this inquiry.

Keywords: Heavy metal; musical genre; song; social-semiotics.
Por uma etnografia das práticas de consumo
Authors: Brandini Valéria
Published: March 2023

Este artigo sugere uma reflexão teórica acerca da etnografia como método para pesquisas de consumo e desenvolvimento de estratégias de produção de bens. O universo do consumo, e, em especial, do consumo de moda, representa hoje um sistema de produção de significações (como quer

Jean Baudrillard) e comportamentos gerados pela racionalidade econômica (como vemos em Pierre Bourdieu) que são evidenciados por meio do mercado como processo ritual. Assim, a etnografia do consumo e a antropologia

empresarial podem ser vistas como estratégia para empresas.

Palavras-chave: Consumo; etnografia; comunicação.

ABSTRACT

This article suggests a theoretical reflection about ethnography as a method for research on consumption and the development of strategies of goods production. The universe of consumption, and, specially, fashion

consumption, represents nowadays a system of significations (as said by Jean Baudrillard) and behavior generated by the economic rationality (as we have seen in Pierre Bourdieu) that are evidentiated by the market as a ritual process. So, ethnography of consumption, and anthropology

of business can be seen as business strategies.

Keywords: Consumption; ethnography; communication.
Comunicação e práticas sociais no espaço urbano: as características dos Dispositivos Híbridos Móveis de Conexão Multirredes (DHMCM)
Authors: Lemos André
Published: March 2023

Neste artigo descrevemos algumas características dos telefones celulares, definidos aqui como “Dispositivos Híbridos Móveis de Conexão Multirrede” (DHMCM). Devemos pensar esses dispositivos tanto por suas características intrínsecas como por suas particularidades sociais.

Os telefones celulares encarnam, ao mesmo tempo, funções de conversação, convergência, portabilidade, personalização, conexão através de múltiplas redes, produção de informação (texto, imagens, sons), localização...

Vamos mostrar também como as novas formas de produção

imagética (fotos e vídeos) por esses dispositivos instituem uma sociabilização efêmera, o que marca um contato social midiatizado, não solene, fugaz, transformando esses formatos em vetores de sociabilidade e de

comunicação.

Palavras-chave: Celular; mobilidade; cidade; cibercultura.

Abstract

This paper aims to describe some characteristics of the cell phone, defined here as “Multi-networked Connected Hybrid Mobile Devices”. We must think of these devices looking for its intrinsic characteristics and also on its social particularities. The cell phones incarnate, at the same time, con-versational functions, media convergence, portability, personalization,

connection through multiple nets, mobile production of information (text, images, sounds), localization... At the end, we’ll try to understand the new social functions of the image production by cell phone (photos and videos)

and argue that these images create an ephemeral form of socialization.

Keywords: Cell phone; mobility; city; cyberculture.
Partial intermediary value-chain coordination and its effects on productivity of sweet potato in Tanzania
Authors:   The University of Dodoma, Mmasa JJ
Published: March 2023

This study investigates the effect of partial intermediary coordination on Tanzania sweet potato productivity. A cross-sectional research design was used, and a sample of 100 small-scale farmers from Kilosa and Gairo Districts were surveyed using both purposive and simple random sampling techniques. Data analysis tools included the Statistical Package for Social Sciences, Microsoft Excel and Ethnographic Content Analysis. Three key value chain actors primary, secondary, and tertiary were identified by the study, along with their roles and linkages. The majority of farmers identified three main factors that affected crop productivity in the research area: Lack of improved cultivars, restricted access to cash, and small parcels cultivated. Coordination between the horizontal and vertical chain is critical for productivity and efficiency. The study also discovered that weak institutional frameworks exist among key participants in value chain nodes. Farmers and buyers conducted the majority of their business on the spot, and all agreements were unwritten. Meanwhile, only 6% of respondents reported that extension officers had notified them of market price offers and demands from profitable markets. Growers are unable to use innovative production techniques that could lead to economies of scale in shared services and collaborative ventures because of current production practices. It was noticed that rather than raising production, the existing intermediate corporations have contributed to lowering transaction costs. Despite these challenges, there is a lot of potentials for the sweet potato crop to transform rural livelihoods and turn into a valuable commodity. Governance needs to be supported by policies that improve market information flow and necessary infrastructures. While intermediate organizations are essential for improving market connections and lowering transaction costs for dispersed smallholders, it is critical for increasing productivity at the primary production level. Last but not least, the local government should put into effect a strategy designed to promote a climate suitable to the crop. Key words: Partial, Productivity, Coordination, Sweet potatoes, Value-Chain, Smallholders, Actors, Farmers
Effect of varied calcium formulations and time of application on postharvest quality and organoleptic acceptability of mango fruits
Authors:   University of Nairobi, Bitange NM , Chemining’wa GN , Ambuko J , Owino WO ,   Jomo Kenyatta University of Agriculture and Technology
Published: March 2023

Mango (Mangifera indica L.) is a highly perishable fruit with a short shelf life at ambient conditions, which may lead to post-harvest losses approximated to be 40-45%. This reduces returns to farmers significantly. The problem is compounded by the fact that most farmers do not have access to cold storage facilities. Nutrient management has been shown to affect postharvest characteristics of fruits. Calcium particularly plays a critical role in cell membrane integrity, tissue firmness and delays lipid catabolism. Previous studies have indicated a deficiency of calcium in some mango growing regions in Kenya. A field study was carried out to determine the effect of varied calcium formulations applied at various stages of growth on mango fruits post-harvest quality and organoleptic acceptability. The study was carried out in Embu County Eastern Kenya during seasons 2017/2018 and 2018 /2019 using “Van Dyke” cultivar, aged approximately 10 years. The experiment was set up in a randomized complete block design with a split-split plot arrangement, three trees per replication, replicated thrice. Three calcium formulations: calcium chloride, calcium nitrate and Easygro™ were applied at rates of 0%,1.0%, 1.5% and 2.0% at fruit set, 30 days after fruit set and 30 days to physiological maturity. The calcium sources formed the main plots, the timing of application formed the subplots while the rates of application formed the sub-sub plots. Total soluble solids (TSS) and percentage titratable acidity (TA) were assessed at harvest and after 12 days of storage under ambient conditions (25±2ºC, 70±5% relative humidity) using standard procedures. Selected fruits’ sensory attributes were also evaluated after storage using a hedonic scale. Analysis of data was done using the 14th Edition of the Genstat software. The differences among the means of the treatments were compared using Fisher’s Protected LSD test at 5% probability level. Fruits sprayed with calcium chloride, 2.0% at fruit set had higher TSS (6.8 º brix and 6.3º brix) (10.47 º brix and 9.10 º brix), TA (1.29% and 1.27%), (0.77% and 0.675%) than other treatments at maturity and after storage in both seasons, respectively. Calcium chloride at 2.0% level of application led to a superior peel color appearance contrary to calcium nitrate and Easygro™ also applied at 2.0%, which led to an inferior peel color appearance and an inferior taste of fruits. Therefore, calcium nitrate and easy gro should be sprayed at concentration of 1.5% for good taste and peel colour appearance. Key words: Mango, total soluble sugars, total titratable acidity, organoleptic, shelf-life
Gendern in der Politik. Weibliche Personenbezeichnungen in deutschen und polnischen Partei-Tweets
Authors: Mikołajczyk Beata , Aptacy Jarosław
Published: March 2023

In der politischen Kommunikation erfüllt die Sprache spezifische Funktionen: Mit ihr werden politische Inhalte kommuniziert und kommentiert, vor allem jedoch wird versucht, politische Befürworter*innen zu überzeugen und zu gewinnen, aber auch politische Gegner*innen abzuwerten. Politische Kommunikation wurde in den letzten über 10 Jahren in der digitalen Welt immer präsenter, auch in den sozialen Medien. Unter ihnen hat sich Twitter zu dem am häufigsten und am intensivsten genutzten Medium in politischen Debatten entwickelt. Über diesen Microblogging-Dienst kommuniziert die Mehrheit der deutschen und polnischen politisch engagierten Akteur*innen (institutionell – staatliche Institutionen, politische Parteien, ihre Fraktionen oder Jugendorganisationen, und im Einzelnen – Politiker*innen, Journalist*innen, Expert*innen etc.) mit dem interessierten Publikum. Und es sind die Tweets deutscher und polnischer Parteien aus dem Jahr 2022, die in diesem Artikel einer sprachlichen Analyse unterzogen wurden. Weibliche Personenbezeichnungen, ein sprachliches Phänomen, das seit Jahren Gegenstand intensiver öffentlicher Debatten ist, stehen im Zentrum unseres Interesses. Der Artikel präsentiert eine vergleichende Analyse der Verwendung dieser Lexeme in den beiden Sprachen wie auch zwischen den behandelten Parteien.
Investigation of concrete produced using recycled aluminium dross for hot weather concreting conditions
Authors: Mailar Gireesh , Jayakesh K , Manu D. S. , Hiremath Parameshwar , Raghavendra N Sujay , B.M. Sreedhara
Published: March 2023

Aluminium dross is a by-product obtained from the aluminium smelting process. Currently, this dross is processed in rotary kilns to recover the residual aluminium, and the resultant salt cake is sent to landfills. The present study investigates the utilization of recycled aluminium dross in producing concrete, which is suitable for hot weather concreting condition. The primary objectives of the experimental study are to examine thefeasibility of using concrete blended with recycled aluminium dross under hot weather concreting situations and then to evaluate the strength and durability aspects of the produced concrete. From the experimental results it is observed that the initial setting time of the recycled aluminium dross concrete extended by about 30 minutes at 20% replacement level. This property of recycled aluminium dross concrete renders it to be suitable for hot weather concreting conditions. Based on the results obtained, the replacement of cement with 20% of Al dross yields superior mechanical and durability characteristics.
Improving the efficiency of high-temperature processes for producing lower olefins via deep-processing of by-products
Authors: Bondaletova Lyudmila I. , Bondaletov Vladimir
Published: March 2023

Processes for producing lower olefins are critically examined. It is noted that pyrolysis of various types of hydrocarbon isstill the main process of obtaining ethylene and propylene, and is accompanied by the formation of considerable amounts of by-products,such as liquid pyrolysis products. We present an analysis of domestic and foreign scientific, technical, and patent information pertaining to therational use of petrochemical production by-products, aimed at obtaining hydrocarbon (petroleum) resins. We consider the raw materialsinvolved in obtaining the resins, and generalize data on existing methods of obtaining resins using thermal, initiated, and ion (catalyst)polymerization.
Review of nanotechnology value chain for water treatment applications in Mexico
Authors: Castaneda Rafael , Lau Edgar Zayago , Robles-Belmont Eduardo , Silva Sein Leon
Published: March 2023

Nanotechnologies are part of a new industrial platform with the capability to surpass existing tech-intensive systems for water treatment.Accordingly, many countries apply nanotechnology-based processes to solve problems associated with water. The authors of this article review thestate of nanotech applications for water treatment in Mexico. To this purpose, they follow the trajectory of the nanotech package; from researchand development to its commercialization. The study encompassed several stages: a bibliometric analysis (publications), a database with all theresearch groups looking at this issue, a catalog of all related patents and, finally, an overview of Mexican nano-companies in the water sector.
Optimization of extraction condition for phytic acid from peanut meal by response surface methodology
Authors: Hong Ren , Wan Huijie , Li Ting
Published: March 2023

Phytic acid (PA), a molecule with high commercial value, is one of the important component in peanutmeal. However, PA has not yet been isolated from peanut meal and played its role. This paper reportedthe extraction conditions of PA from peanut meal after removed protein. The independent variables werehydrochloric acid (HCl) concentration, solid to liquid ratio, extraction time and extraction temperature.Response surface methodology (RSM) was used to optimize the extraction conditions based on the extractionyield of PA. The results show that the second-order polynomial models derived from responseswell with the experimental (R 2 = 0.9783). The optimal extraction condition was obtained with solid toliquid ratio of 1:16 (g:mL), HCl concentration of 0.02 mol/L, extraction time of 105 min, and extractiontemperature of 30 °C. At this condition, PA with higher purity were obtained. the extraction ratio was6.12%, and the content of PA was 182.7 mg/g dry PA extract. The experimental values under optimal conditionwere in good consistent with the predicted values. The PA extracted from peanut meal was verifiedqualitatively by IR spectra. The extraction technology of PA from peanut meal has a strong potential forrealized high-value utilization of peanut meal.
Synthesis and characterization of novel activated carbon from Medlar seed for chromium removal: Experimental analysis and modeling with artificial neural network and support vector regression
Authors: Nasernejad Bahram , Solgi Mostafa , Ahmadnejad Shahyar , Najib Tahereh
Published: March 2023

In this study, for the first time the activated carbon has been produced from medlar seed (Mespilus ger- manica) via chemical activation with KOH. The carbonization process was carried out at different tem- peratures of 450, 550, 650 and 750 °C. The Nitrogen adsorption-desorption, Fourier transform infrared spectroscopy (FTIR) and Field Emission Scanning Electron Microscope (FESEM) analyses were carried out on the adsorbents. The effect of operating parameters, such as pH, initial concentration of Cr(VI), adsor- bent dosage and contact time were investigated. The experimental data showed better agreement with the Langmuir model and the maximum adsorption capacity was evaluated to be 200 mg/g. Kinetic studies indicated that the adsorption process follows the pseudo second-order model and the chemical reaction is the rate-limiting step. Thermodynamic parameters showed that the adsorption process could be con- sidered a spontaneous ( G < 0), endothermic ( H > 0) process which leads to an increase in entropy ( S > 0). The application of support vector machine combined with genetic algorithm (SVM-GA) and ar- tificial neural network (ANN) was investigated to predict the percentage of chromium removal from aque- ous solution using synthesized activated carbon. The comparison of correlation coefficient (R 2 ) related to ANN and the SVR-GA models with experimental data proved that both models were able to predict the percentage of chromium removal, by synthetic activated carbon while the SVR-GA model prediction was more accurate.
SUPERLUMINAL SYNCHROTRON RADIATION
Authors: Aginian M.A. , Arutunian S.G. , Lazareva E.G. , Margaryan A.V.
Published: March 2023

To avoid complex computations based on wide Fourier expansions, the electromagnetic field of synchrotron radiation (SR) was analyzed using Lienard–Wiechert potentials in this work. The retardation equation was solved for ultrarelativistic movement of rotating charge at distances up to the trajectory radius. The radiation field was determined to be constricted into a narrow extended region with transverse sizes approximately the radius of trajectory divided by the particle Lorentz factor (characteristic SR length) cubed in the plane of trajectory and the distance between the observation and radiation emission point divided by the Lorentz factor in the vertical direction. The Lienard–Wiechert field of rotating charge was visualized using a parametric form to derive electric force lines rather than solving a retardation equation. The electromagnetic field of a charging point rotating at superluminal speeds was also investigated. This field, dubbed a superluminal synchrotron radiation (SSR) field by analogy with the case of a circulating relativistic charge, was also presented using a system of electric force lines. It is shown that SSR can arise in accelerators from “spot” of SR runs faster than light by outer wall of circular accelerator vacuum chamber. Furthermore, the mentioned characteristic lengths of SR in orbit plane and in vertical direction are less than the interparticle distances in real bunches in ultrarelativistic accelerators. It is indicating that this phenomenon should be taken into account when calculating bunch fields and involved at least into the beam dynamic consideration.
Arte/Etnografía/Diseño
Authors: Marcus George E.
Published: March 2023

El objetivo de este ensayo es mostrar, a través del análisis de la vigencia del uso de la categoría de «arte popular» en el Perú y en Latinoamérica en general, la construcción y continuidad de un orden epistemológico que divide, y contrapone, sujetos, saberes, producciones y conocimientos; y que a pesar de ciertos cambios, sigue siendo reproducido y alimentado por museos, exposiciones, disciplinas académicas, escuelas de arte, mercado y políticas culturales del Estado, al igual que por los llamados «artistas populares»
La era posmedia y la estética en el campo de producción artística de la fotografía en Lima
Authors: Zevallos Trigoso Carlos
Published: March 2023

El objetivo del presente artículo es proponer una aproximación desde la antropología del arte y hacia la estética que permita establecer algunos puntos de partida para pensar en las prácticas contemporáneas del campo artístico de la fotografía en Lima. El objetivo es recoger una lectura de la noción de «estética» que proviene de algunas propuestas de la antropología del arte para plantear un acercamiento a cierto fenómeno contemporáneo que ha sido denominado «posfotografía» (Mitchell, 1992) y que suele surgir enunciado ante algunos desarrollos de la práctica artística de la fotografía tanto en el escenario local como el global
Sobre el concepto de arte en los uitotos áimeni
Authors: Yahuarcani Rember
Published: March 2023

El idioma minika está en extinción en el Perú. Sus pocos miembros han ido desapareciendo paulatinamente. Martha López Pinedo, matriarca del clan Áimenu en el Perú, fue la principal defensora e impulsadora para que el idioma no se perdiera. Santiago Yahuarcani, hijo de Martha, es el miembro del clan que mejor domina el idioma y lo ha logrado transmitir a sus hijos y a otras personas en su natal Pevas, en el Amazonas.
MAHKU-El movimiento de artistas Huni Kuin
Authors: Pelegrino de Mattos Amilton
Published: March 2023

El objetivo aquí propuesto es presentar una experiencia de coautoría que resulta del desarrollo y consecuencias de una investigación de cantos tradicionales de pueblos Huni Kuin realizada por Ibã Huni Kuin al seguir la Licenciatura Indígena de la Universidad Federal del Acre (UFAC), Campus Floresta, en el Acre, Brasil
El caso peruano de esterilización forzada y el arte de género. Notas para una etnografía crítica
Authors: Ballón Alejandra
Published: March 2023

El caso peruano de las miles de esterilizaciones forzadas que ocurrieron en el transcurso de la década de 1990, durante los sucesivos gobiernos autócratas del presidente Alberto Fujimori Fujimori y que fueron sistematizadas desde el segundo periodo gubernamental bajo el llamado Programa Nacional de Salud Reproductiva y Planificación Familiar (PNSRPF, 1996-2000) ha motivado la preocupación de diversas artistas visuales nacionales desde finales de dicha década hasta nuestros días
¿Qué hay dentro de las casas? Pequeñas historias sobre la distancia y el vacío
Authors: Iguíñiz Natalia
Published: March 2023

Como artista visual, mis reflexiones están orientadas principalmente a la creación de imágenes (por lo que no expondré el resultado de una investigación teórica o de campo). Escribiré además a partir de mi propio trabajo (no del de otros como se suele hacer en los campos académicos), de mí y de la las violencias que vivo y encarno.
El diario entre «lo visual» y «lo sensorial»
Authors: Cortés Severino Catalina
Published: March 2023

Siena’ga y Re-membranzas son prácticas visuales guiadas por un ensamblaje intuitivo de imágenes y memorias, a través de capas temporales, reflexiones y texturas con que he tratado de evocar no solo lo que es visible, sino también la experiencia sensorial del movimiento y la memoria. Los dos proyectos, en sus temáticas particulares, son una yuxtaposición poética del tiempo, los lugares, la cultura material y la experiencia vivida. Desde acá, me interesa explorar las múltiples gramáticas de sentido del tiempo, el espacio y la memori
Conversación de Campo. La conversación como método de aproximación entre el arte y la antropología
Authors: Carmona Rosario
Published: March 2023

Las preguntas que guiaron esta investigación fueron cómo construir un proceso artístico a partir de una metodología etnográfica y cuál es la pertinencia de los procesos artísticos dentro de la investigación antropológica. Para esto, la metodología que estructuró la investigación fue la conversación, comprendida como un acto que permite aproximarse y abrirse al otro, construyendo un nuevo espacio social a partir de una pluralidad de voces (Basbaum, 2008). Considerando su contexto social, cultural y geográfico, los puentes establecidos por la conversación entre una obra audiovisual y la comunidad buscaron promover reflexiones que permitieran abrir posibilidades de relacionarnos a través del arte, las ideas y la experiencia
Forma y contenido, soluciones a un mismo problema geométrico e historia de un surgimiento
Authors: Salas Carreño Juan
Published: March 2023

La instalación fotográfica forma y contenido, la serigrafía soluciones a un mismo problema geométrico y el video historia de un surgimiento forman originalmente parte de la exposición «Cusco: íconos y variaciones», la cual propone una exploración en torno a íconos representativos del Cusco; como la Piedra de los Doce Ángulos. El propósito de esta exploración es dar una mirada a las maneras en cómo la Piedra de los Doce Ángulos se ha convertido en ícono identitario del cusqueño.
Entre la calle y la galería : una aproximación a la trayectoria del colectivo LimaFotoLibre desde la antropología visual y el arte
Authors: Juárez Li Jorge Alfonso
Published: March 2023

El colectivo LimaFotoLibre (LFL) nace en el año 2006 y desde entonces ha venido mostrando su trabajo en distintas plataformas y espacios de exposición. Actualmente tiene cuatro integrantes que firman bajo los seudónimos de «Tunchi», «Oe», «Fokus» y «Petituars». Así pues, en lo que resta del texto, utilizaré los seudónimos para referirme a ellos, ya que esa es la forma que más han utilizado al momento de exhibir y mostrar su trabajo.
La clausura del mapa
Authors: La Rosa Nancy
Published: March 2023

La clausura del mapa fue parte del proyecto de exposición «Manifestaciones de una lejanía», donde se planteaba reflexionar acerca de otras realidades territoriales que puedan generar vínculos con la idea de un territorio en continuo desplazamiento o de carácter temporal