bluuebunny/crossref_metadata_2025 huggingface dataset:
Organodiphosphines in Pt{η2-P(X)
n
P}(Cl)2 (n = 4, 5, 6, 7, 8, 10, 11, 15, 18) derivates: Structural aspects
Authors: Milan Melník , Mikušová Veronika , Mikuš Peter
Published: July 2024

This structural study includes over 70 Pt{η2-P(X)
n
P}(Cl)2 (n = 4, 5, 6, 7, 8, 10, 11, 15, 18) derivates in which organodiphosphines create wide varieties of the metallocyclic rings: 7 membered (PC4P (most common), POC2OP, PNC2NP, PSC2SP, PNC2OP; 8 membered (PC5P, PC2OC2P, PC2NC2P); 9 membered (PC6P, POC4OP); 10 membered (POC5OP, PC2OCOC2P; PC3OC3P); 11 membered (PC8P,PNC6NP,POC6OP), 13 membered (PC3NC2NC3P); 14 membered (P(C2Cl3C2P); 18 membered (PC4NC2NC2NC4P); and 21 membered (POC2NC10NC2OP). These complexes crystallized in three crystal classes: triclinic (15 examples) < orthorhombic (17 examples) < monoclinic (39 examples). In these complexes, the most common is a predominantly cis arrangement (68 examples) and only 3 examples with trans configuration. The total mean values of Pt–L bond distances in the complexes (cis vs trans configuration) are 2.232 Å (L = P), 2.353 Å (L = Cl) vs 2.312 and 2.307 Å, respectively. The structural data are compared and discussed with those found in cis-Pt(η2-P(X)
n
P)(Cl)2 (n = 1, 2, 3) in which organodiphosphines form four-PCP, PNP; five-PC-CP; PC═CP; six-PC3P, PNCNP, PCCOP, PCCNP, PCSCP, PCSiCP; membered metallocyclic rings. Some complexes are examples of distortion and cis–trans isomerism.
A collaborative model to restore racial diversity in the teaching profession
Authors: Agiro Christa , Jomantas Amy , Reyes Ganiva , Dorsey Maya , Cosby James , Sumerfield Sandra , Bowman Connie , Anyanwu Amy , Adams Phyllis , Schwartz Tammy
Published: July 2024

Sixty-eight years after the Brown v. Board of Education decision led to a national reduction of teachers of color, even as numbers of students of color grew, a collaborative effort to racially re-diversify the education profession is forming in the Dayton, Ohio region. This article describes this ongoing movement to increase the number of racially and ethnically marginalized educators, led by seven school districts, five institutions of higher education (IHEs), a county educational services center, and two nonprofit organizations. Initial work was supported by leveraging grant funds. The project seeks to (1) identify seventh- through eleventh-grade students interested in becoming educators, (2) direct students into model pathways and critical supports from high school through college graduation and licensure, (3) offer support for minoritized future and new teachers that fosters confidence and promotes belonging, and (4) facilitate the emergence of collectively-designed professional development for continuous renewal of culturally responsive and inclusive cultures in all education spaces. Strategies include identifying prospective teachers within high schools, establishing peer cohorts, facilitating critical mentoring, mapping grow-your-own pipelines and pathways, providing support at crucial stages in college, developing positive cultures in programs and districts, facilitating ongoing professional development that centers marginalized perspectives, and providing logistical support for emerging networks and organic affinity groups. Lack of support, student debt, isolation, discrimination, and unwelcoming and unresponsive school environments are common barriers that require ongoing dismantling.
Combler l’écart de compétences entre les nouveaux arrivants et l'industrie : preuves provenant du projet d'innovation de la main-d'œuvre et de l'inclusion
Authors: Cukier Wendy , Ying Mo Guang , Karajovic Stefan , Borova Betina , Nagpal Ranjana
Published: July 2024

Les nouveaux arrivants au Canada font face à divers obstacles à leur intégration économique, allant du manque de familiarité avec l'anglais ou le français et la culture canadienne aux réglementations restrictives concernant les titres de compétences étrangers. Ces obstacles se manifestent par des écarts de compétences entre les nouveaux arrivants et l'industrie, pour laquelle les compétences des nouveaux arrivants ne correspondent pas à ce que recherchent les employeurs. Cet article examine la littérature sur les écarts de compétences au Canada, mettant en évidence le besoin de programmes et de services visant à soutenir les nouveaux arrivants dans leur approche avec ces obstacles et à combler l'écart de compétences. Ensuite, l'article présente une argumentation en faveur du développement des compétences entrepreneuriales en tant que voie alternative à l'intégration économique pour les nouveaux arrivants. Enfin, trois programmes de développement des compétences sont analysés, démontrant l'efficacité potentielle de telles interventions pour aider les nouveaux arrivants à surmonter les obstacles à l'intégration économique.
The Effects of Reinforcing Task Alternations on Voluntary Task Selection
Authors: Held Leslie K. , Vermeylen Luc , Krebs Ruth M. , Notebaert Wim , Braem Senne
Published: July 2024

Everyday life often requires us to switch between states of cognitive flexibility and stability. However, little is known about what drives their regulation at the meta-control level. Based on current theories of cognitive control, we tested whether the regulation of cognitive flexibility and stability is guided by reinforcement learning. Using a task-switching paradigm with a double registration procedure – where people need to choose which task to perform before seeing the target, we systematically reinforced cued task switches or repetitions to test whether this led to more voluntary task switching (flexibility) or repeating (stability) on interspersed unrewarded free choice trials, respectively. While we did not find the hypothesized effect in an uninstructed version of the experiment (n=97), informing participants (n=58) on the reinforcement schedule on cued trials induced more switching or repeating on unrewarded free-choice trials. We speculate that people adapt their control strategies if they are aware of the respective benefits, even when they cease to be rewarded. Interestingly, choices were predominantly driven by task preference in both experiments and strongly correlated with task performance costs. This finding suggests that, when using an interspersed design with a double registration procedure, people mostly choose tasks based on task difficulty rather than switch avoidance. Together, these experiments help determine whether and when people can learn about the value of task selection strategies beyond the scope of a single task, and provide a self-regulating system to understand putative higher-order control processes.
Sea ice mass balance during the MOSAiC drift experiment: Results from manual ice and snow thickness gauges
Authors: Raphael Ian A. , Perovich Donald K. , Polashenski Christopher M. , Clemens-Sewall David , Itkin Polona , Lei Ruibo , Nicolaus Marcel , Regnery Julia , Smith Madison M. , Webster Melinda , Jaggi Matthias
Published: July 2024

Precise measurements of Arctic sea ice mass balance are necessary to understand the rapidly changing sea ice cover and its representation in climate models. During the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition, we made repeat point measurements of snow and ice thickness on primarily level first- and second-year ice (FYI, SYI) using ablation stakes and ice thickness gauges. This technique enabled us to distinguish surface and bottom (basal) melt and characterize the importance of oceanic versus atmospheric forcing. We also evaluated the time series of ice growth and melt in the context of other MOSAiC observations and historical mass balance observations from the Surface Heat Budget of the Arctic (SHEBA) campaign and the North Pole Environmental Observatory (NPEO). Despite similar freezing degree days, average ice growth at MOSAiC was greater on FYI (1.67 m) and SYI (1.23 m) than at SHEBA (1.45 m, 0.53 m), due in part to initially thinner ice and snow conditions on MOSAiC. Our estimates of effective snow thermal conductivity, which agree with SHEBA results and other MOSAiC observations, are unlikely to explain the difference. On MOSAiC, FYI grew more and faster than SYI, demonstrating a feedback loop that acts to increase ice production after multi-year ice loss. Surface melt on MOSAiC (mean of 0.50 m) was greater than at NPEO (0.18 m), with considerable spatial variability that correlated with surface albedo variability. Basal melt was relatively small (mean of 0.12 m), and higher than NPEO observations (0.07 m). Finally, we present observations showing that false bottoms reduced basal melt rates in some FYI cases, in agreement with other observations at MOSAiC. These detailed mass balance observations will allow further investigation into connections between the carefully observed surface energy budget, ocean heat fluxes, sea ice, and ecosystem at MOSAiC and during other campaigns.
Internações por COVID-19 de pessoas com doenças cardiovasculares e sua relação com indicadores de equidade
Authors: Silva Ruàn Éverton de Souza , Lima Eduardo Araújo , Silva Danilla Michelle Costa e , Silva Ana Roberta Vilarouca da , Oliveira Edina Araújo Rodrigues , Formiga Laura Maria Feitosa , Carvalho Rumão Batista Nunes de
Published: July 2024

Objetivo: analisar a relação entre as doenças cardiovasculares crônicas e indicadores de equidade em adultos brasileiros hospitalizados por COVID-19. Métodos: estudo transversal e analítico com dados secundários do Sistema de Informação de Vigilância Epidemiológica da Gripe, totalizando 1.204.767 casos com comorbidades. Inicialmente, testou-se a associação entre doenças cardiovasculares e as características sociodemográficas utilizando-se regressão de Poisson com variância robusta e, posteriormente, a relação (expressa em taxas) dessas doenças com indicadores de equidade, por meio do teste de correlação de Pearson. Resultados: dos 1.204.767 casos hospitalizados com comorbidades, 52,7% apresentavam doenças cardiovasculares. Constatou-se correlação inversa quase perfeita (r = -0,9521) entre os valores médios do Índice de Vulnerabilidade Social e o desfecho, enquanto os valores médios do Índice de Desenvolvimento Humano apresentaram correlação direta (r =0,7636). Conclusão: a alta prevalência das doenças cardiovasculares está correlacionada a indicadores de equidade em estratos populacionais específicos dos hospitalizados por COVID-19. Contribuições para a prática: os resultados podem subsidiar práticas que considerem, além das necessidades assistenciais à saúde, os aspectos específicos de grupos populacionais de maior vulnerabilidade social.
EXPLORING INDONESIAN EFL STUDENTS' EXPERIENCE IN VLOGGING FOR SPEAKING PRACTICE
Authors: Yusuf Faidah , Aras Latri , Faisal Muhammad , Ali Ameer
Published: July 2024

ABSTRACTResearch on the use of digital technology in English-speaking practice has been widely acknowledged in the literature, including empirical studies on the use of vlogging as a mediated instruction in teaching speaking skills. This study aimed to investigate Indonesian EFL students' experiences when conducting a food vlog learning project in English-speaking practices. Fifty students in the Education Department at the State University of Makassar, Indonesia, took part in this study. In their English classes, they worked on the food vlog as a project-based learning (PBL) activity. Random sampling was used to choose five people from each of the five groups of ten people, and they agreed to take part in a semi-structured interview. A thematic analysis was used to look at the qualitative data from the interview. The results indicate that the food vlog group, as part of PBL, helped and enhanced the students' self-efficacy, vocabulary mastery, learning autonomy, technology skills, and confidence in speaking English in EFL classes. These findings suggest that PBL has practical application within the context of the food vlog project. Consequently, utilizing a food vlog as a learning activity can be an effective support in practicing their English-speaking skills beyond the confines of the classroom.ABSTRAKPenelitian tentang penggunaan teknologi digital dalam praktik berbahasa Inggris telah diakui secara luas dalam literatur, termasuk studi empiris tentang penggunaan vlogging sebagai instruksi mediasi dalam pengajaran keterampilan berbicara.Penelitian ini bertujuan untuk menyelidiki  pengalaman siswa EFL Indonesia dalam melakukan proyek pembelajaran vlog makanan dalam praktik berbahasa Inggris. Lima puluh mahasiswa di Departemen Pendidikan di Universitas Negeri Makassar, Indonesia, mengambil bagian dalam penelitian ini. Di kelas bahasa Inggris mereka mengerjakan vlog makanan sebagai kegiatan pembelajaran berbasis proyek (PBL). Pengambilan sampel acak digunakan untuk memilih lima orang dari masing-masing lima kelompok yang terdiri dari sepuluh orang, dan mereka setuju untuk mengambil bagian dalam wawancara semi-terstruktur. Analisis tematik digunakan untuk melihat data kualitatif dari wawancara. Hasil penelitian menunjukkan bahwa kelompok food vlog sebagai PBL membantu dan meningkatkan self-efficacy siswa, penguasaan kosa kata, kemandirian belajar, keterampilan teknologi, dan kepercayaan diri dalam berbicara bahasa Inggris di kelas EFL. Temuan ini menyatakan bahwa PBL memiliki aplikasi praktis dalam konteks proyek vlog review makanan secara nyata. Oleh karena itu, food vlog dapat digunakan sebagai kegiatan pembelajaran yang efektif untuk membantu siswa berlatih berbicara bahasa Inggris di luar kelas.How to Cite: Yusuf, Y., Aras, L., Faisal, M., & Ali, A. (2023). Exploring Indonesian EFL Students Experience in Vlogging for Speaking Practice. IJEE (Indonesian Journal of English Education), 10(2), 443-462. doi:10.15408/ijee.v10i2.32036.
Peer Tutoring to Improve the Speaking Proficiency of Multiage EFL Students
Authors: Ariesinta Dimiar , Widyantoro Agus
Published: July 2024

Previously, educators created a multiage classroom to address the growing age gap within a class and the unresolved issue of teacher shortage. However, some schools in specific countries currently use this system, which provides significant benefits and positive developments to their fall-behind students or classes. This study conducted peer tutoring to address speaking issues in the classroom and bridge the gap in students' basic English knowledge. Besides, it is eager to improve students' speaking skills in a multiage EFL classroom and enrich literature in non-formal education. This study used McNiff and Whitehead's (2006) theory cycle for classroom action research: observation, reflection, action, evaluation, and modification. Data were collected through tests and interviews, and then the questionnaire was added and analysed using the NVivo 12 Pro application. The finding revealed that peer tutoring improved the multiage students' speaking proficiency in their fluency, vocabulary, and comprehension. In a non-academic setting, peer tutoring effectively boosted the students' self-confidence and collaboration and demonstrated grade-level skills or accelerated learning in the class.
Analyzing Student Performance in Learning English for General Academic Purposes (EGAP): A Comparative Action Research Study of Online and Offline Learning
Authors: Gufron Gufron , Md Zamin Ainul Azmin
Published: July 2024

This study aims to examine the impact of the pandemic on student performance in Learning English for General Academic Purposes (EGAP) through a comparative analysis of the pandemic and post-pandemic periods, using a Classroom Action Research (CAR) approach. The sudden shift to remote and hybrid learning during the pandemic required a transformation in education, prompting an investigation into its effects on students' English language proficiency. The research was conducted with a diverse sample of students across multiple disciplines. Quantitative and qualitative data were collected, including academic records, language proficiency tests, and observations. Results revealed significant differences in student performance between the two periods, highlighting the pandemic's impact on English learning outcomes. The study also explored various factors influencing these disparities, such as access to technology, learning environments, and adaptability to remote instruction. There is a gap in research on the long-term impact of the pandemic on EGAP performance across disciplines. The novelty of this study is its use of CAR to understand the ongoing effects and adaptive strategies in EGAP education. This research sheds light on the challenges students faced during and after the pandemic, the effectiveness of remote learning methods, and provides insights for educational policymakers and practitioners.
rural and urban community perceptions of ecosystem goods and services in the semi-arid reservoirs landscape
Authors: Osório de Sousa Lívia Maria , Barbosa de Melo Dalescka , Marques Rocha Ferreira Lucianna , Molozzi Joseline
Published: July 2024

Ecosystem goods and services (EGS) are the contributions that ecosystems provide to human well-being. The reservoir landscape, an artificial ecosystem, offers a wide range of ecological and socioeconomic functions for local populations, such as potable water, irrigation, and plants for food purposes. This study aimed to assess the perception of EGS provided by the reservoir landscapes of rural and urban populations. Research was conducted with residents around reservoirs in the Paraiba Basin of Brazil, specifically in the cities of Camalaú and Boqueirão. Socioeconomic information and population perceptions were obtained using semi-structured forms and participatory mapping, respectively. Based on analyses using PERMANOVA and Mann-Whitney statistical tests, it was found that rural people and men perceived and cited a higher number of EGS. Responses varied with different education levels (Illiterate, Primary School Incomplete, Primary School Complete, High School Incomplete, High School Complete, and University Degree Complete), with provisioning services being more easily perceived and mentioned by the interviewees. People in direct contact with the natural environment were more likely to perceive EGS than those without such contact. However, the importance of EGS was recognised by both rural and urban populations, as these services are essential for their well-being. Perceptions of riverside populations are important for conservation efforts because they provide valuable information about ecosystems based on their experiences within these ecological systems.
Justification of Optimal Operating Parameters of the Field Cultivator Tool through Determining Traction Resistance
Authors: Bozhko Igor V. , Kambulov Sergey I. , Parkhomenko Galina G. , Rykov Victor B. , Podlesny Dmitry S.
Published: July 2024

Introduction. The technological operation of soil tillage is an energy-intensive preparatory operation. The traction resistance of tillage units has a direct impact on this indicator.
Aim of the Study. The study is aimed at searching optimal operating parameters for the field cultivator tool through determining the traction resistance created by this tool.
Materials and Methods. The study was carried out in the field on an experimental facility using a full factorial experiment technique with a working model based on a three-level design.
Results. Through the regression analysis of experimental data, there was obtained a mathematical model that allows determining the optimal operating parameters for the field cultivator tool when performing a technological operation of soil tillage.
Discussion and Conclusion. While calculating, it was found that the lowest traction resistance PТ = 0,72 kN created by the tool is for the following values: tillage depth h = 4 cm, crumbling angle of the left-hand and right-hand flat-cutting wings f = 0° and the speed of the tillage unit v = 2,61 m/s. As the optimal operating parameters for a field cultivator tool, determined using the obtained mathematical model, it is recommended to use the crumbling angle of the left-hand and right-hand flat-cutting wings of the working body f = 0°, and the speed of the tillage unit v = 2,91 m/s. Taking into account the recommended optimal operating parameters of the tool, it is possible to calculate the value of the traction resistance index at different tillage depths. The traction resistance will change within the range of 0.79–1.81 kN, when the soil tillage depth changes from 4 to 12 cm. The resulting mathematical model of the traction resistance created by the tool will allow a more accurate approach to the issue of designing agricultural machines.
Archaeometric analysis of the metal ornamentation of Late Bronze Age vessels and funnel-shaped pendants from the south-western Transdanubia
Authors: Jankovits Katalin , Szőkefalvi-Nagy Zoltán , Kovács Imre
Published: July 2024

Vessels decorated with domed metal discs were extraordinarily rare and valuable commodities of the Late Bronze Age. Pottery adorned with bronze discs and tin first appeared in Hungary during the earlier Urnfield period (14th/13th century BC). A vessel adorned with three ring motifs inlaid with a high-tin alloy on its belly is known from Nagykanizsa-Bilkei-dűlő and a cup decorated with bronze domed discs was recovered from Grave 222 of the Vörs-Battyáni-Disznólegelő cemetery, both in southern Transdanubia. The decorative bronze discs similarly had a high tin content. The metal composition was analysed with particle induced X-ray emission (PIXE) spectroscopy. Pendant ornaments of “white bronze”, an alloy with a high tin content, are principally known from southern Transdanubia: the elemental composition of two pendants with bird protomes from Grave 51 of the Vörs-Battyáni-Disznólegelő cemetery and of a funnel-shaped pendant from the Pamuk hoard were examined by PIXE for compositional make-up, which indicated a high tin content for all three. These pendants had been worn as adornments. Tin was an important raw material in the production of bronze. Most of the vessels decorated with bronze discs were brought to light in the late Urnfield cemetery uncovered at Budapest-Békásmegyer (boot- and amphora-shaped vessels, a feeding vessel, resin balls). It seems likely that these vessels had once served ritual purposes. Regrettably, they have not yet been submitted to PIXE analyses.
Peter Garnsey: Food and Society in Classical Antiquity
Authors: Wilkins John
Published: July 2024

Peter Garnsey: Food and Society in Classical Antiquity: Cambridge University Press, 1999, 189 pp, 9 illustrations; h/b £35, p/b £12.99.
The Good Housekeeping Organic Handbook
Authors: Jaine Tom
Published: July 2024

The Good Housekeeping Organic Handbook: HarperCollins, London 2001: ISBN 0-00-711689-6: 190 pp., colour photos, h/b, £18.99.
Kusuma Cooray: Burst of Flavor. The Fine Art of Cooking with Spices
Authors: Jaine Tom
Published: July 2024

Kusuma Cooray: Burst of Flavor. The Fine Art of Cooking with Spices: University of Hawai‘i Press, Honolulu, 2001, distributed by Curzon Press, Richmond: ISBN 0-8248-2416-4: 264 pp., colour photos, £15.99.
Implementation of energy efficient approaches in the green construction
Authors: Kurochkina Valentina , Bronnikova Yuliya
Published: July 2024

The growth of the population, increasing requirements for the quality and comfort of housing leads to the need for the development of the human living environment in the conditions of the expansion of urban agglomerations, the consequence of which is an ever-increasing burden on all the life systems of cities. In modern conditions, the importance of the environment should not be underestimated, since the quality of the environment directly affects the health and well-being of citizens. One of the promising areas of development of the construction sector is the transition to
eco-construction, which implies the introduction of energy-efficient technologies, as well as the use of environmentally friendly materials and technologies. In the article are discussed the use of various materials in order to determine their energy efficiency and the optimality of their use in a «green» construction.
O silenciamento de um enigma: sobre a interpretação da mania como defesa
Authors: Bazzo Renata , Dunker Christian
Published: July 2024

Resumo: Nas últimas décadas, observa-se a emergência de um debate a respeito do pouco avanço nas pesquisas sobre a mania em psicanálise. Este artigo examina duas hipóteses que elegem a nosografia como fator explicativo elementar para essa lacuna: a primeira concerne ao amplo assentimento da categoria da psicose maníaco-depressiva, ao passo que a segunda se refere à adoção indistinta de categorias divergentes pelos psicanalistas. Contrariamente a essas interpretações, mas ainda dentro do mesmo quadro de referência, pretende-se sustentar que o fator mais decisivo para tal estagnação da pesquisa situa-se nas concepções de curso do quadro incorporadas pela psicanálise. Argumenta-se que, se, por um lado, o sentido de defesa atribuído à posição invariavelmente secundária da mania na circulação com a melancolia contribuiu para a delimitação metapsicológica do quadro, por outro, ela conduziu ao estreitamento exagerado de sua psicopatologia e à correspondente redução das pesquisas sobre esses casos.
Preservation of moderately resistant or tolerant genotypes: a strategy to overcome guava decline
Authors: Silva Maurício Moisés Pereira da , Queiróz Manoel Abilio de , Coutinho Milena dos Santos , Oliveira Patrícia Gomes de
Published: July 2024

ABSTRACT: Native to the tropical Americas, guava (Psidium guajava L.) is an important crop in Brazil. However, the emergence of so-called guava decline, a complex disease resulting from root parasitism by the root-knot nematode (Meloidogyne enterolobii Yang & Eisenback) in association with opportunistic fungi, has decimated guava orchards across Brazil and in other countries. In the present study, seminiferous guava accessions were vegetatively propagated by minigrafting and their genotypes preserved for resistance reassessment in clones to confirm or not host plant reactions. The results indicated a highly virulent parasite, high host suitability of the P. guajava species, and widely varying reactions among plants of the same genotype and between different genotypes, demonstrating that the strategy of preserving the germplasm and reassessing reactions in clones may be important in identifying and selecting germplasms with a degree of resistance to M. enterolobii. The progeny of cv. Paluma P02R5R2 obtained the lowest average parasite reproduction factor (RF = 22.11) among the genotypes evaluated and was; therefore; classified as moderately resistant and preserved for future research.
A simple, fast and cheap isolation and multiplication technique of Phytophthora infestans
Authors: Andrade Monica do Rocio , Maia Aline José , Sloboda Stephani , Faria Cacilda Márcia Duarte Rios , Nazareno Nilceu Ricetti Xavier de , Kawakami Jackson
Published: July 2024

ABSTRACT: In this study, we present a method for isolation and propagation of Phytophthora infestans, a challenging-to-isolate phytopathogenic oomycete. The procedure initiated with naturally infected potato leaves, which underwent a 30-minute sanitization under running water. Subsequently, healthy potato tubers were meticulously washed with a neutral detergent, sterilized using alcohol, and then flamed. Slices 4 mm thick were carefully cut out of the potato tubers. Slices were used to cover 2 x 4 mm sterilized leaf pieces cut from the border of two-day old young P. infestans lesions, within sterilized empty Petri dishes. The sealed plates were then transferred to BOD growth chambers set at 18 ºC in complete darkness for 5 days. At the end of this incubation period, the development of a sparse, white mycelium was observed on top of the potato slices. Using a Drigalski loop, the visible mycelium was carefully transferred to rye agar medium in Petri dishes. To avoid contamination, care was taken not no touch potato slices. After mycelium reaching the Petri dish border, and with aid of a Neubauer chamber, the inoculum density per plate was of 1.79 x 104 sporangia mL-1. Sporangia germination rate ranged from 69 to 78%. This isolation technique simplify in vitro production of P. infestans, enhancing the possibility for research with this important pathogen.
Cattleya walkeriana Gardner (Orchidaceae) propagation: culture medium, sealing system and irradiance
Authors: Ramos J. C. M. , Ribeiro L. M. , Nunes G. P. , Soares J. S. , Francisco P. M. S. , Sorgato J. C.
Published: July 2024

Abstract This study aimed to evaluate the influence of culture media, irradiance, and sealing system on the in vitro and ex vitro growth of Cattleya walkeriana Gardner. We used MS medium as culture medium, supplemented with 30 g L-1 of sucrose and solidified with 7.0 g L-1 of bacteriological agar. This medium served as a control, while for the other treatments we supplemented the media as follows: 2) MS with 150 g L-1 of banana pulp = P150; 3) MS with 300 g L-1 of banana pulp = P300; 4) MS with 150 g L-1 of banana peel = PE150; and 5) MS with 300 g L-1 of banana peel = PE300. The irradiances were provided by 3000K LED lamps: 86 μmol m-2 s-1 (Irradiance-1) and 128 µmol m-2 s-1 (Irradiance-2) and the conventional sealing (CSS) and sealing systems that allow gas exchange (GESS). After 120 (in vitro) and 180 days (ex vitro) of cultivation, we evaluated them for pseudobulb (PN), leaf (LN) and root number (RN), plant height (PH), pseudobulb diameter (PD), longest leaf (LL) and root length (RL), fresh mass (TFM) and survival (%SURV). There was a significant interaction for all the variables analyzed. The CM x SS double interaction was significant for PH, LL, and RL. The CM x I x SS interaction was significant for PN, LN, RN, PD, TFM, and %SURV traits of C. walkeriana grown in vitro. There was a significant interaction between CM x I x SS for all C. walkeriana traits evaluated in ex vitro culture. Using the medium with up to 150 g L-1 of banana pulp combined with Irradiance-2 and CSS provided the highest values for in vitro plant growth. However, prior cultivation in MS medium, Irradiance-1, and CSS provided the greatest survival and establishment of this species plants in ex vitro culture.
Uso de laserterapia de baixa intensidade em lesões flebostáticas como terapia adjuvante
Authors: Rezende Lucas Dalvi Armond , Catabriga Davi de Souza , Pacheco Alicia de Oliveira , Ramalho Aline de Oliveira , Freitas Paula de Souza Silva
Published: July 2024

Resumo A laserterapia de baixa intensidade (LBI) é comumente utilizada como terapia adjuvante para tratamento de lesões. Essa revisão integrativa de literatura foi realizada nas bases MEDLINE, LILACS, CUMED, BDENF, SPORTDiscus, Dentistry & Oral Sciences Source, Fonte Acadêmica e CINAHL. Entre os critérios de inclusão estavam: intervalo de 2011 a 2021, nos idiomas inglês, português e espanhol e qualquer estudo, com exceção de preprints e livros. Respondeu-se à questão: “Qual a eficácia descrita na literatura do uso da laserterapia de baixa intensidade (LBI) no tratamento de lesões venosas?”. O comprimento de onda usado nos estudos variou de 635 nm de raio vermelho ah 780 nm de raio infravermelho, gerando melhora cicatricial em qualquer comprimento. A LBI apresentou-se como uma opção coadjuvante de baixo custo e de fácil aplicação, amenizando queixas álgicas e melhorando a cicatrização de pacientes com lesões vasculogênicas.
Use of low-level laser therapy as an adjuvant therapy for phlebostatic lesions
Authors: Rezende Lucas Dalvi Armond , Catabriga Davi de Souza , Pacheco Alicia de Oliveira , Ramalho Aline de Oliveira , Freitas Paula de Souza Silva
Published: July 2024

Abstract Low-intensity laser therapy (LILT) is commonly used as an adjuvant therapy for treating injuries. This integrative literature review was carried out in the MEDLINE, LILACS, CUMED, BDENF, SPORTDiscus, Dentistry & Oral Sciences Source, Academic Source and CINAHL databases. Among the inclusion criteria were: range from 2011 to 2021, in English, Portuguese and Spanish and any study, with the exception of preprints and books. The question was answered: “What is the effectiveness described in the literature of using low-intensity laser therapy (LILT) in the treatment of venous lesions?” The wavelength used in studies varied from 635 nm of red ray to 780 nm of infrared ray, generating healing improvement at any length. LBI presented itself as a low-cost and easy-to-apply adjuvant option, alleviating pain complaints and improving healing in patients with vasculogenic lesions.
Comida e consumo na pandemia e após: um olhar a partir dos mercados de Madrid
Authors: Menasche Renata , Lozano-Cabedo Carmen
Published: July 2024

Resumo Ainda que nas últimas décadas tenham passado por intensas transformações, os mercados municipais de Madrid permanecem tendo papel significativo no abastecimento de alimentos frescos e são considerados espaços em que, através da proximidade e da confiança, podem ser adquiridos produtos de qualidade. A partir de observação participante e de entrevistas junto a comerciantes, realizadas durante os últimos meses de 2022 nos mercados municipais do distrito central da cidade de Madrid, este artigo discute mudanças no consumo alimentar ocorridas durante e após a pandemia de Covid-19. A análise se detém, especialmente, em aspectos associados a percepção de risco, qualidade e saúde relacionados com a alimentação. Os resultados obtidos fornecem pistas para a reflexão sobre tendências e processos pertinentes ao consumo alimentar na contemporaneidade.
Perceptions of elderly people who care for other elderly people in times of the COVID-19 pandemic
Authors: Leite Gilclean Delfino , Medeiros Fabíola Araújo Leite , Medeiros Ana Cláudia Torres De , Silva Josevânia da , Bezerra Thaíse Alves
Published: July 2024

Abstract Objective To identify the perception of older adults who are caregivers for other older adults about the care offered, as well as the strategies for coping with difficulties in this process from the perspective of Coping Theory in the context of COVID-19. Method This is a henomenological study, with elderly people and participants in the Universidade Aberta à Maturidade, Program of the State University of Paraíba. Data collection instruments were a sociodemographic questionnaire, and semi-structured script. Interviews were carried out via video call and the data was evaluated by Content Analysis. Results 17 elderly caregivers aged between 60 and 79 years participated. Three thematic categories were listed: 1) Difficulties faced during the pandemic period; 2) Coping strategies used during the pandemic; 3) Needs for improvement in the performance of the caregiver role. Conclusion we found evidence of increased stress, presence of anxiety and risk of overload. In these circumstances, the participants developed coping strategies through education, use of social networks and seeking support.
Rastreamento da fragilidade em pessoas idosas com hipertensão arterial sistêmica por instrumentos diferentes
Authors: Barbosa Samara Frantheisca Almeida , Rocha Fernando Alves , Freitas Jônatas Vinicius Machado de , Oliveira Glaucia Cavalcante , Carneiro Jair Almeida , Costa Fernanda Marques da
Published: July 2024

Resumo Objetivo Comparar o grau de concordância, a correlação e a acurácia entre os instrumentos Edmonton Frail Scale (EFS) e Índice de Vulnerabilidade Clínico-Funcional-20 (IVCF-20) em pessoas idosas com hipertensão arterial sistêmica (HAS). Método Estudo transversal e domiciliar com pessoas idosas de Montes Claros, MG. Este estudo incluiu somente indivíduos com HAS cujos dados foram coletados no período de novembro de 2016 a fevereiro de 2017. Foram determinados a sensibilidade, especificidade e valores preditivos. A estatística Kappa analisou a concordância e confiabilidade, o coeficiente de Pearson avaliou a correlação entre os instrumentos. Resultados 281 eram hipertensas e foram incluídas neste estudo. Constatou-se que a prevalência de fragilidade foi 31,3% pela EFS e 22,1% pelo IVCF-20. A estatística Kappa foi 0,604 e coeficiente de correlação de Pearson foi de 0,621 (p<0,001). A acurácia foi de 84,34%. Conclusão Os instrumentos EFS e IVCF-20 demonstraram concordância e confiabilidade moderada, forte correlação positiva e boa acurácia. Os resultados ratificam a importância de padronizar o instrumento para verificar a fragilidade de pessoas idosas hipertensas. A adequada avaliação da fragilidade busca ofertar uma assistência pautada na prevenção e promoção que capazes de evitar a piora do estado de saúde e agravos da hipertensão arterial.
Maintenance of knowledge acquired by community health workers on hearing health topics: A remote teaching approach
Authors: Streit Glória Cristina de Souza , Brum Júlia Borgheti , Hames Laura Binsfeld , Nascimento Rafael Niederauer do , Patatt Fernanda Soares Aurélio
Published: July 2024

ABSTRACT Purpose: to measure the maintenance of knowledge acquired by community health workers about hearing health and check whether it was associated with their age group, education level, and length of service. Methods: an experimental study, in which 30 community health workers participated in four remote meetings. In the first one, data were collected on their age, education level, and length of service. The second and third meetings had educational actions on 1) hearing, 2) hearing health and impairment, 3) organization of Hearing Healthcare Services, 4) hearing aid use and hygiene, and 5) the importance of follow-up visits; also, the immediate post-training quiz was applied. The late post-training quiz was administered in the fourth meeting. Each quiz had 10 problem situations. Knowledge maintenance was measured by comparing the scores of correct answers. Moreover, the participants’ performances were associated with the variables. The data underwent McNemar, Binomial, and Fisher's exact statistical tests, setting the significance level at 5%. Results: there was no difference in correct answers between the quizzes and knowledge maintenance was not related to the variables. Conclusion: the community health workers maintained the acquired knowledge for months after the educational actions, regardless of their age group, education level, or length of service.
Territorialidades e temporalidades abigarradas nas narrativas da memória do Projeto Moradores
Authors: Amormino Luciana
Published: July 2024

Resumo Partindo do Projeto Moradores, projeto cultural voltado para a coleta de narrativas de moradores de determinados lugares, etapas Belo Horizonte e Lagoinha, este artigo pretende refletir sobre a relação entre territorialidades e temporalidades que se depreendem e colocam-se em fricção em suas narrativas. Propõe, inicialmente, uma reflexão sobre o conceito de espaço e tempo, para então convocar a noção de abigarrado, proposta por Rivera Cusicanqui (2015; 2018), para se pensar a relação entre essas duas instâncias, uma vez que ela nos possibilita tomá-las em sua coexistência não apaziguadora. Tendo isso em vista, busca olhar como o projeto propõe um modo próprio de pensar a cidade, reterritorializada no espaço virtual onde o projeto se encontra.
Creación y jueceo de ítems: ChatGPT como diseñador y juez
Authors: Mendoza Karla Karina Ruiz , Zúñiga Luis Horacio Pedroza , García Alma Yadhira López
Published: July 2024

Resumen El fin de este estudio fue evaluar la efectividad de la inteligencia artificial (IA), representada por ChatGPT 4.0, comparada con diseñadores humanos en la creación de ítems para un examen para el ingreso a la educación superior en el área de Lengua Escrita. Se utilizó un enfoque mixto, combinando metodologías clásicas y contemporáneas en evaluación educativa, incluyendo el juicio de expertos. ChatGPT y cuatro diseñadores humanos desarrollaron 84 ítems, siguiendo la Taxonomía de Anderson y Krathwohl para establecer el nivel de demanda cognitiva. Los ítems fueron evaluados por dos jueces humanos y ChatGPT, utilizando una rúbrica detallada que incluye claridad, neutralidad, formato, alineación curricular y redacción. Los resultados mostraron una alta tasa de aceptación sin cambios tanto para ítems de ChatGPT como para los humanos, indicando una buena alineación con los estándares de evaluación. Sin embargo, se observaron diferencias en la necesidad de cambios menores y mayores propuestos por la rúbrica. El estudio concluye que tanto la IA como los diseñadores humanos son capaces de generar ítems de alta calidad, resaltando el potencial de la IA en el diseño de ítems educativos.
El autoaprendizaje aplicado a las asignaturas de tecnología audiovisual. Estudio de caso
Authors: García Alberto Luis García , Cid Manuel Sánchez , Marroquín-Ciendúa Fernando
Published: July 2024

Resumen El presente trabajo pretende demostrar, a través de un estudio de caso, las necesidades de aprendizaje en una asignatura práctica perteneciente al grado de Comunicación Audiovisual de la Universidad Complutense de Madrid, para comprobar las posibilidades que ofrece el autoaprendizaje como complemento a la formación presencial. El principal objetivo del estudio es analizar la percepción del alumnado sobre la adquisición de conocimientos a través de estrategias de autoaprendizaje dentro de la asignatura tecnológica experimental denominada "Edición y Postproducción". Para ello se ha realizado una investigación cuantitativa, exploratoria, descriptiva y relacional con una muestra de 154 participantes, según un cuestionario con tres categorías de análisis centrado en: 1) formación y aprendizaje, 2) dedicación y métodos de trabajo, y 3) resolución y ayuda complementaria. Los resultados obtenidos permiten extraer conclusiones sobre la idoneidad del proceso formativo actual, las necesidades que implican el aprendizaje y la utilidad de un sistema formativo de autogestión para complementar la formación presencial.
A educação em tempos de smartphones e redes sociais: por uma crítica permanente no enfrentamento da dessubjetivação e monitoramento
Authors: Quiroga Fernando Lionel , Bessa Rosângela de
Published: July 2024

Resumo O presente estudo tem como objetivo problematizar os sentidos decorrentes do uso de smartphones e outros dispositivos móveis na sociedade contemporânea, de modo geral, e em âmbito educacional, de modo específico. Metodologicamente, tal estudo ampara-se na perspectiva teórica e conceitual, enquadrando-se no gênero ensaístico no tratamento das informações. Como principais resultados, observamos que tais dispositivos atuam como instrumentos de monitoramento e controle, impactando em um processo de dessubjetivação e perda cognitiva, além de suscitar questões éticas, sociais e de privacidade. Além disso, avançamos no debate acerca do uso dos dispositivos móveis no contexto escolar, bem como analisamos as relações entre educação e tecnologias digitais a partir de documentos como a Base Nacional Comum Curricular (BNCC), e o Relatório de Monitoramento Global da Educação (UNESCO). Concluímos, na direção da construção de respostas sobre os dilemas resultantes desta relação, a elaboração de uma crítica permanente capaz de superar atitudes desatentas e ingênuas em face do teor ideológico, político e estratégico do paradigma da conectividade, cujos efeitos têm manifestado forte potencial de dessubjetivação, perda cognitiva, bulliyng , cultura do ódio, bem como de outros problemas relacionados à saúde.
Rotation as a strategy to increase the sustainability of potato crop1
Authors: Camacho Oscar Iván Monsalve , Ortiz Wilmar Alexander Wilches , Diaz Ruy Edeymar Vargas , Malagón Eduardo María Espitia
Published: July 2024

ABSTRACT Potato cultivation is characterized by a high use of inputs, which results in soil degradation and contamination. Crop rotation is a good practice to counteract these problems. This study aimed to assess the sustainability of three rotation sequences (potato-pea-potato, potato-oat-pea and potato-potato-oat) using the sustainability assessment methodology oriented to agricultural experiments associated with soil management. It was observed that, both environmentally and economically, potato-potato-oat is the most sustainable treatment, while potato-oat-pea is the most socially sustainable. Balancing the three dimensions, potato-potato-oat is the most sustainable treatment, with sustainability index of 0.85, while potato-pea-potato is the least sustainable one, with 0.64. The potato-potato-oat rotation sequence generates a less negative environmental impact, as well as a higher social equity and economic return for the farmer.
Nutrient extraction and export by determinate and indeterminate common bean cultivars1
Authors: Silva Carine Gregório Machado , Moreira Silvino Guimarães , Moraes Luciana Correa , Gaudencio Josias Reis Flausino , Pimentel Guilherme Vieira
Published: July 2024

ABSTRACT There is evidence that the dry mass and nutrient accumulation rates of earlier (determinate) cultivars are faster than those of normal or late cycle (indeterminate). This study aimed to quantify the nutrient extraction and export and calculate the harvest index of determinate and indeterminate common bean cultivars. A randomized block design was used, with four replicates and eight cultivars (BRS FC104, TAA Gol, BRS Estilo, BRSMG Uai, IPR Tuiuiú, BRSMG Marte, Pérola and TAA Dama). The accumulation of dry matter and nutrients at the vegetative and reproductive stages, grain yield and grain nutrient export were determined. The early cultivars TAA Gol and BRS FC104 (Type I - determinate) accumulated more dry matter and nutrients during the vegetative stage than the indeterminate types II and III. However, from R7, no differences were observed among the cultivars for extractions or nutrient exports and harvest index. The cultivars exported 33, 11, 17, 2.3, 2.2 and 1.5 kg t-1 of grain for N, P2O5, K2O, S, Mg and Ca, respectively. Micronutrient exports were 14, 3.7, 70, 13 and 34 g Mg-1 of grain for B, Cu, Fe, Mn and Zn, respectively. The TAA Gol and BRS FC104 determinate cultivars reached the R9 stage at 77 days and the indeterminate cultivars at 85 (BRSMG Marte), 90 (IPR Tuiuiú and BRSMG Uai) and 93 days (TAA Dama and Pérola). BRS Estilo, BRS FC104 and TAA Gol had the lowest grain yield (< 2,200 kg ha-1) and TAA Dama the highest grain yield (3,275 kg ha-1).
Protesta y vandalismo en espacio público
Authors: Páramo Pablo , Burbano Andrea
Published: July 2024

Resumen En América Latina el espacio público ya no es el lugar de reunión social y menos de recreación. Ahora es un escenario de confrontación donde se manifiesta la protesta y en medio de esta, se vandalizan los bienes públicos. Este artículo analiza las protestas en Bogotá, acaecidas en periodos críticos entre 2019 y 2021, y los actos de violencia y vandalismo asociados a estas manifestaciones. Se entrevistaron policías antidisturbios y manifestantes, y se tomaron las noticias publicadas por el periódico El Tiempo en relación con estas protestas. La información fue analizada con el programa Atlas.ti dando lugar a categorías que agruparon las motivaciones para participar de la protesta, su planificación, los lugares donde se manifiesta, los impactos, y el papel de los medios. Los resultados se discuten desde distintas hipótesis para explicar su relación con el vandalismo y las posibles soluciones pasando por la búsqueda de una sociedad más igualitaria.