bluuebunny/crossref_metadata_2025 huggingface dataset:
A BODIPY-Containing Covalent Organic Framework as a Highly Porous Photosensitizer for Environmental Remediation and Pollutants Adsorption
Authors: Sánchez-Naya Roberto , Beuerle Florian
Published: July 2024

The direct incorporation of borondipyrromethene (BODIPY) subunits into the structural backbone of covalent organic frameworks (COFs) gives facile access to porous photosensitizers but is still a challenging task. Here, we introduce β ketoenamine-linked BDP TFP COF, which crystallizes in AA stacking mode with hcb topology. A comprehensive characterization reveals high crystallinity and enhanced stability in a variety of solvents, excellent porosity (SABET = 1042 m2/g), broad light absorption in the visible region, and red emission upon the exfoliation of few-layer COF nanosheets. The versatility of multifunctional BODIPY-COFs is highlighted in various applications. Pollutants Bisphenol A (BPA, qmax = 426 mg/g) and Methylene Blue (MB, qmax = 96 mg/g) have been efficiently removed from H2O. Fluorescence quenching or enhancement of exfoliated BDP TFP COF nanosheets have been utilized for dual-mode sensing of MB or NEt3, respectively. Ultimately, the photosensitizing effect of the BODIPY units is retained in the COF. Thus, BPD TFP COF was established as a metal-free triplet photosensitizer, which efficiently oxidized a mustard gas simulant under visible light irradiation.
Finding non-fluorinated alternatives to fluorinated gases used as refrigerants
Authors: Glüge Juliane , Breuer Katharina , Hafner Armin , Vering Christian , Müller Dirk , Cousins Ian T. , Lohmann Rainer , Goldenman Gretta , Scheringer Martin
Published: July 2024

Hydrofluorocarbons (HFCs) and so-called hydrofluoroolefins (HFOs) are used as refrigerants in air conditioning, refrigeration, chillers, heat pumps and devices for dehumidification and drying. However, many HFCs, including R-134a and R-125, have a high global warming potential and some of the HFCs and HFOs degrade atmospherically and form persistent degradation products. Thus, there is an urgent need to replace fluorinated refrigerants with non-fluorinated working fluids to avoid direct emissions due to leakage, incorrect loading or removal. It is important, however, also to select refrigerants with high efficiencies to avoid indirect CO2 emissions due to a (too) high energy consumption during the use phase. The present study investigates the available non-fluorinated alternatives to fluorinated refrigerants and shows that a transition to non-fluorinated refrigerants, in general, is possible and has happened in many sectors already. Technically, there are only slight barriers to overcome to replace fluorinated refrigerants in almost all newly developed systems conforming to existing standards. Additionally, we show that alternatives are available even for some use cases for which derogations have been proposed in the PFAS restriction proposal and suggest making these derogations more specific to support bringing the use of non-fluorinated refrigerants into practice.
Morphology of Lithium Halides in Tetrahydrofuran from Molecular Dynamics with Machine Learning Potentials
Authors: de Giovanetti Marinella , Hopen Eliasson Sondre H. , Løland Bore Sigbjørn , Eisenstein Odile , Cascella Michele
Published: July 2024

The preferred structures of lithium halides (LiX, with X = Cl, Br, I) in organic solvents have been the subject of a wide scientific debate, and a large variety of forms has been isolated and characterized by X-ray diffraction. The identified molecular scaffolds for LiX are diverse, often built on (LiX)n rings with a prevalence of rhomboidal arrangements and an appropriate number of solvent or Lewis base molecules coordinating the lithium ions. Much less is known about the structures of LiX in solution, limiting the understanding of the synergistic role of LiX in reactions with various organometallic complexes, as prominently represented by the turbo Grignard reaction. Here, we trained a machine learning potential on ab initio data to explore the complex conformational landscape for systems comprising 4 LiX moieties in tetrahydrofuran (THF). For all the considered halogens a large number of scaffolds were found at thermally accessible free energy values, indicating that LiX in solution are a diverse ensemble constituted by (LiX)n moieties of various size, completed by the appropriate number of coordinating THF. LiCl shows preference for compact, pseudo-cubane [(LiCl)(THF)]4 structures, coexisting with open rings. At concen- trations close to the solubility limit, LiCl forms hexagonal structures, in analogy with literature observations on pre-nucleating NaCl. LiBr tends to favor less compact, more solvated aggregates. LiI significantly differs from the two other cases, producing highly solvated, monomeric, dimeric or linear structures. This study provides a comprehensive view of LiX in organic solvent, revealing dynamical polymorphism that is not easily experimentally observable.
Optimization of Cosolvent Enhanced Lignocellulosic Fractionation for Isolating Switchgrass Lignin with Distinct Structural Features Using Response Surface Methodology
Authors: Godwin James , Yi Hojae , Seabright Kendhl , Harper David , Chmely Stephen
Published: July 2024

Pretreatment and fractionation technologies have been used to separate and isolate biomass polymers for conversion into fuels, chemicals, and other products. A great deal of work has focused on dialing in reaction conditions (e.g., time, temperature, acid concentration, etc.) that are amenable to isolating an uncondensed lignin product that could be converted into high value aromatic platform molecules. Pretreatment severity emerged as a term that combines time, temperature, and acid concentration into a single value that can be used to compare various pretreatment technologies. However, combining the effects of these conditions into a single term, while convenient, confounds the effects that these conditions have on lignin quality, both individually and when combined with each other. Moreover, pretreatment and fractionation reactors do not have a severity “knob,” and several different sets of conditions could mathematically achieve the same severity but have different effects on the resulting lignin product slate. In this study, we set out to model the effects of time (10-30 min), temperature (140-180 °C), and acid concentration (0.025-0.1 M H2SO4) on lignin yield (up to quantitative), molecular weight (Mw = 700-2000 g/mol), and hydroxyl group content (3.55-6.06 mmol OH/g) using the co-solvent enhanced lignocellulosic fractionation (CELF) process on switchgrass. Our results show that while lignin yield is sensitive to severity (i.e., higher severity leads to higher yield), acid concentration and temperature affect the molecular weight and hydroxyl group content of the resulting lignin, and these features cannot be maximized (or minimized) simultaneously. Moreover, our results demonstrate that residence time does not have a statistically significant effect on yield or molecular weight within the studied ranges, which could have implications for continuous and flow-through processes, where short residence times could lead to substantial cost savings. Overall, these results demonstrate that practitioners can design a process that maximizes one or more of industrially relevant lignin properties by exerting careful control of fractionation conditions, which could ultimately lead to greater utilization of lignin for fuels, chemicals, and other products.
The Role of Women in Political Patronage and Political Alliance in the Joxzin Community Organization in the 2019 Election
Authors: Subandi Yeyen
Published: July 2024

The aim of this research is to look at the role of women in political patronage relationships which resulted in a political alliance between the community organization Joxzin (Jogjakarta Islamic Never Die) and the political party United Development Party (PPP) in the 2019 elections in 2019. Sleman Regency, Special Region of Yogyakarta , Indonesia. Joxzin is a community organization consisting of male and female members. This research uses a convergent method of mixing qualitative and quantitative data which is then analyzed using the NVivo 12 Plus application. The findings obtained in this research are that Joxzin has political patronage ties. Joxzin has resources and power compared to patrons because Joxzin as a client can appoint Ahmad Zahran to be Chairman of the Branch Leadership Council of the Yogyakarta City Development United Party. With Joxzin's strong political alliance, Muhammad Yazid from the Sleman Regency Pilkada became a legislative member of the Yogyakarta Special Region People's Representative Council for the 2019-2024 period.
Keywords: Political patronage, political alliances, Woman, Joxzin, Partai Persatuan Pembangunan (PPP).
Gender-Responsive Policy in Water Management: An Outlook in ‘Citarum Harum’s Program
Authors: Oktaviani Jusmalia
Published: July 2024

In Indonesia, rivers, crucial for clean water, currently face alarming pollution. Unfortunately, women, key in ensuring water quality, lack opportunities. This study aims to depict the state of the Citarum River, women's involvement, and propose ways for women to optimize their role in managing domestic waste for river restoration. Using qualitative methods, the research identifies a connection between environmental issues and patriarchal challenges, emphasizing the need for comprehensive, gender-friendly policies. Recommendations from UN Water policies can be adapted for effective implementation in Indonesia. According to the research, the issue of the environment or water is a component of the traditional patriarchy problem, requiring gender-friendly strategies at all tiers. Even with initiatives to include women in areas such as water empowerment, women continue to be excluded from decision-making processes. Based on the research, it is recommended that women be made aware of their significance in gender-friendly policies and that their opinions should be considered during the decision-making process.
Keywords: rivers, water quality, women's empowerment
Perempuan dan Kesadaran Arti Pohon: Studi Kasus Etnobotani
Authors: Retnaningsih Umi
Published: July 2024

The issue of global warming resulting from carbon emissions of greenhouse gas is a concern for nations inthe world including Indonesia. The Indonesian government has launched several programs for mitigation, including planting trees in urban areas. In 2007, Indonesia introduced Women Planting Trees and Management, WomenPlanting Trees Movements and Food Resilience Program (GPT-PKP), and other programs. Research explored theprogram implementation in Indonesia by collecting data and analyzing women's knowledge, perceptions, awareness,and actions for planting trees and their management. Surveys were conducted for data on the meaning of treessocially, economically, and environmentally. After completion surveys, the good participants were interviewed deeply and observed to prove their genuine awareness and action for planting and maintaining trees in their daily lives. Research revealed planting trees did not provide social and economic benefits. Trees taproots damaged walls and buildings, leaves made yards dirty, and lack of appreciation for being an environmentally friendly person by planting trees.
Keywords: Awareness of trees, Indonesian government program, social and economic benefits, women,
Pergeseran Penghidupan dan Agensi Perempuan
Authors: Dewi Elisabeth , Ayunda Dyah , Andalas Patrisius , Lede Yulita
Published: July 2024

Sekitar dua dekade terakhir, Pulau Sumba mengalami pergeseran pola penghidupan pasca pemekaran empat kabupaten di wilayah tersebut. Perubahan tersebut diawali dengan program pembangunan di Indonesia melalui perluasan agro-industrial di wilayah yang dianggap kurang subur. Selain itu karakteristik wilayahnya yang berbukit dengan padang rumput yang luas dan juga tradisi masyarakat adat Marapu di Sumba telah menarik perhatian industri pariwisata. Oleh sebab itu, masyarakat adat mengalami peralihan sistem kepemilikan lahan dan sebagian mereka beralih pada strategi penghidupan pengelolaan pertanian kecil hingga aktivitas nonpertanian, seperti pertambangan atau menjadi tenaga kerja migran. Perubahan ini juga mempengaruhi pembagian kerja gender dan juga nilai simbolis masyarakat adat Sumba, seperti aktivitas menenun yang dilakukan oleh para perempuan. Mereka memanfaatkan keterampilan yang mereka peroleh secara turun-temurun untuk merespon kondisi tersebut dan menunjang resiliensi keluarga dan komunitasnya. Untuk memahami perubahan kondisi penghidupan, makna simbol, serta narasi perempuan, penelitian ini menggunakan metode kualitatif dalam Kerangka Kerja Penghidupan Berkelanjutan berperspektif ekofeminisme. Penelitian ini membahas bagaimana agensi para perempuan penenun dalam merespon perubahan pola penghidupan di tengah implementasi program pembangunan yang berorientasi kapitalis-patriarki. Temuan dari penelitian ini menunjukan bahwa agensi dan aktivisme para perempuan penenun dipengaruhi oleh faktor sejarah afektif dengan mengadaptasi nilai simbolis adat tenun menjadi bernilai ekonomis dan emansipatoris.
Kata Kunci: penghidupan, perempuan penenun, keluarga, komunitas, agensi, program pembangunan.
Pendampingan Pembelajaran Matematika Siswa SMA Santa Angela Bandung
Authors: Kusnadi Felivia , Kristiani Farah , Sugiarto Iwan , Fauzi Rizky Reza
Published: July 2024

Kebanyakan siswa ingin hidup mereka bermakna, yakni dengan mengetahui tujuan hidup serta cara untuk mencapai tujuan tersebut dengan mengembangkan minat dan bakat mereka dalam suatu bidang. Untuk mengembangkan minat dan bakat yang dimiliki, para siswa memerlukan pembelajaran wawasan sejak dini. Salah satu cara yang telah dilakukan pihak sekolah ialah melalui tes minat dan bakat. Tes yang diberikan saat bangku kelas X atau XI tersebut belum tentu sesuai dengan keinginan mereka. Luaran dari hasil tes minat dan bakat mungkin membantu, namun belum tentu cocok ketika mereka sudah menempuh pembelajaran di bangku kuliah atau ketika mereka sudah bekerja nantinya. Hal ini diperparah dengan adanya pandemi COVID-19 yang memaksa semua proses belajar dan mengajar diselenggarakan secara daring. Minimnya interaksi antara siswa dan guru menyebabkan guru kurang dapat mengenal potensi yang sudah ada dalam diri setiap siswanya, sehingga para guru susah untuk memberikan saran dan masukan yang berguna untuk mengembangkan minat dan bakat anak tersebut. Kegiatan pendampingan pembelajaran matematika yang dikembangkan oleh beberapa dosen Program Studi Sarjana Matematika UNPAR mencoba membantu para siswa yang memiliki minat akan pelajaran matematika untuk mengenali potensi diri. Kegiatan ini diselenggarakan dengan memperkenalkan ilmu-ilmu dasar yang berhubungan dengan matematika. Tujuannya yakni untuk menarik minat para siswa dalam berkarir di bidang yang berhubungan dengan matematika.
Physicochemical characteristics of jack bean (Canavalia ensiformis (L.) DC.)
milk, a non-dairy milk alternative developed using various pretreatment
methods
Authors: Virly  , Sutedja A.M. , Trisnawati C.Y. , Kaharso V.C. , Ivana F. , Asali K.
Published: July 2024

The endeavor to turn jack bean (Canavalia ensiformis (L.) DC.) into jack bean milk faced
a challenge regarding its hard skin, which makes pretreatment of the jack bean before
processing essential to soften and ease the dehulling of beans, as well as aid the grinding
process. However, different pretreatment methods influence the characteristics of treated
jack beans and jack bean milk as the final product. This study, thus, aimed to investigate
the effect of different jack bean pretreatment methods such as soaking in NaHCO3
solution (P1), soaking in hot water (95℃) (P2), and a combination of boiling and soaking
in water (P3), on the physicochemical properties of jack bean milk. Jack bean milk was
prepared by subjecting jack beans to pretreatment, dehulling, wet grinding, filtering, and
heating before proceeding with analyses based on proximate composition, phase behavior,
color and viscosity. The results demonstrated that P2 produced the highest protein
(7.01±0.11%), fat (0.10±0.00%), and ash contents (0.11±0.00%) of jack bean milk. P1
yielded higher protein and ash contents of jack bean milk than that of P3, while no
significant differences in fat contents were discovered in both P1 and P3. Besides, a slight
difference in carbohydrate contents was found among all treatments, ranging from 1.17 to
1.20%. The phase behavior and color analyses showed P1 and P2 to significantly generate
higher colloidal stability and whiteness index value of jack bean milk than P3. In addition,
jack bean milk from P2 possessed the highest viscosity value of 48.1±1.4 cP, followed by
P1 (28.6±0.6 cP) and P3 (12.6±0.5 cP). Accordingly, the recent study proposes the
pretreatment of soaking in hot water (95℃) to be applied in jack bean milk processing and
provides new insights into how pretreatment methods affect the characteristics of plantbased milk products.
THE MODERATING EFFECT OF EDUCATION LEVEL ON THE RELATIONSHIP BETWEEN TRADE OPENNESS AND EMPLOYMENT IN NORTH AFRICAN ECONOMIES
Authors: Rachida Naamaoui , Mabrouka Bencherif , Zeyneb Mehdaoui , Abderrahmane Kouidri
Published: July 2024

Objective: This study explores how education level moderates the relationship between trade openness and employment in North African economies, examining whether higher education levels enhance or mitigate the employment effects of trade openness.
 
Theoretical Framework: The research draws on economic and educational theories to examine the interplay between human capital and economic policies. It uses trade openness theories to assess the impact of economic integration on employment, and human capital theories to analyze the role of education.
 
Method: The study uses a quantitative approach with panel data from North African economies (2000-2020). PLS-SEM models with interaction terms evaluate the moderating effect of education on the trade openness-employment relationship, using data from international trade databases and national educational statistics.
 
Results and Discussion: Findings indicate that trade openness positively influences employment, with the effect amplified by higher education levels. Economies with better education systems benefit more from trade openness in terms of employment. The discussion underscores the importance of educational investment for maximizing these benefits and addresses issues like differing educational quality and labor market conditions across countries.
 
Research Implications: The study suggests that North African policymakers should enhance educational systems to maximize the employment benefits of trade openness, offering practical insights into how education can help address globalization challenges and drive economic growth.
 
Originality/Value: This study uniquely combines education and economic policy perspectives to examine the moderation of trade openness effects on employment in North Africa, providing valuable implications for academic research and policy formulation.
Factors Influencing the Occurrence of Psychological Imbalance in Patients Undergoing Chemotherapy After Modified Radical Mastectomy for Breast Cancer
Authors: Zhang Dongzi
Published: July 2024

Objective: To analyze the factors affecting the occurrence of psychological imbalance in chemotherapy patients after modified radical surgery for breast cancer. Methods: Retrospectively analyzed the clinical data of 285 post-chemotherapy patients with breast cancer who received chemotherapy treatment in a hospital between November 2022 and December 2023 and applied to analyze the incidence rate of psychological imbalance and influencing factors by using logistic regression analysis. Results: Psychological imbalance occurred in 178 cases of 285 post-chemotherapy patients after modified radical mastectomy for breast cancer, accounting for 62.46%. Comparing the patients in the occurrence group and the non-occurrence group in terms of age, family history, marital status, place of residence, and per capita monthly income of the family, the differences were not statistically significant (P > 0.05), whereas in terms of high school or lower education level, low social support, and having a burden of self-feeling, the proportion of the occurrence group was higher than that of the non-occurrence group, and the differences were statistically significant (P < 0.05). Conclusion: The risk of psychological imbalance is higher in patients undergoing chemotherapy after modified radical mastectomy for breast cancer, while high school and below educational background, low social support, and having self-perceived burdens are the main risk factors (OR > 1, P < 0.05).
Two Cases of Acute Myocarditis with Suspected Acute Myocardial Infarction
Authors: Huili Yu , Shiwei Mi , Yanhong Wang
Published: July 2024

Case 1: The patient is a 19-year-old male who was admitted to the hospital with a cough for three days and chest pain for a day, aggravated for two hours. Electrocardiogram showed 1. Sinus tachycardia 2. First-degree atrioventricular block 3. ST-T changes, not excluding acute extensive anterior wall myocardial infarction. Case 2: The patient was a 47-year-old woman admitted to the hospital with a fever for three days. Electrocardiogram showed: 1. Sinus tachycardia, 2. Complete block of the right bundle branch, 3. ST-T changes, not excluding acute extensive anterior myocardial infarction. The study of these two cases strengthened the departmental staff’s knowledge of ECG in acute myocarditis and provided a rapid and accurate ECG diagnosis in the clinic.
Introduction of the Runge-Kutta method in GPS orbit computation
Authors: Medjahed Sid Ahmed
Published: July 2024

In all Global Navigation Satellite Systems (GNSS) applications, the determination of the satellite orbits is an important task. In this study, we present the equations given in the Interface Specification Document of GPS and the Runge-Kutta method in the computation of the position P, velocity V, and acceleration A of the GPS satellites using the broadcast ephemeris. The definition of the differential equation describing the GPS satellite's motion has enabled us to introduce the Runge-Kutta method in the GPS orbit computation; this method uses the initial conditions determined in this study from the Keplerian elements provided in the broadcast ephemeris files. The Lagrange interpolation method is used for comparison of the results, where the vectors P, V, and A are estimated using the precise ephemeris. The difference not exceeding 2.4 m was obtained in the X, Y, and Z axes during seven days on the position of the GPS satellite number 9 tested in this study. In velocity and acceleration, the difference is about a few mm/s and mm/s2, respectively.
Residual effect of biochar on microbial biomass and enzyme activities of soil cultivated with grape varieties: a two -year field assessment
Authors: Alves de Barros Jamilly , Pereira Martins Filho Argemiro , Paes da Costa Diogo , Dos Passos Vieira Alberto , Rodrigues Araújo Edmaíris , Henrique Leal Lopes Márcio , De Souza Júnior José Henrique , Moura da Silva Mairon , Lima José Romualdo de Sousa , Hammecker Claude , Medeiros Erika Valente
Published: July 2024

Biochar has received increasing attention as a soil conditioner, being known for its ability to confer numerous benefits to the soil. Derived from the thermal decomposition of organic materials under low levels of oxygen, biochar concentrates essential nutrients and carbon while having low carbon dioxide emissions. Our hypothesis is that biochar applied as a top dressing can improve soil microbial attributes even after two years in a soil cultivated with different grape varieties. To test this hypothesis, we conducted a field experiment using different doses of cashew wood biochar applied to two grape varieties and evaluated its residual effect on microbial biomass and soil enzymatic activities. The design used was a randomized block design, in a 4 x 2 factorial scheme, with five replications: four doses of biochar (0, 5, 10 and 15 ton ha-1) and two grape varieties (Cabernet sauvignon and Malbec). Soil collection was carried out at a depth of 0-20 cm, to evaluate total organic carbon, microbial biomass carbon and soil enzymatic activities. Our findings revealed that the effect of grape varieties on soil biological properties was more pronounced than the biochar dose, indicating that there is a small residual effect of biochar doses after 2 years of application. Overall, our study provides important insights into the residual effect of biochar on soil microbial attributes and is considered an ecologically sustainable alternative, as it solves the problem of waste reuse and provides a disposal that brings benefits to soil properties.
Ecossistemas (Trans)formados: Levantamento e avaliação da vegetação em formação por efeito de espigão costeiro na Península da Ponta D’areia, São Luís, Maranhão
Authors: Pinheiro Claudio Urbano Bittencourt , De Aquino Heloísa Helena Vasconcelos
Published: July 2024

A ação do ser humano sobre a natureza, vem dando origem a novos ambientes. São Luís, capital do estado do Maranhão, tornou-se uma grande aglomeração urbana cujo crescimento demográfico está refletido na intensidade da sua ocupação espacial. Uma das áreas da cidade que sofreu transformações importantes na ocupação de seu solo, foi a região conhecida hoje como Península da Ponta D’Areia, onde o Espigão Costeiro foi construído. Esta obra foi concebida, dentre outras razões, para conter o avanço da erosão do mar na região, bem como recompor a faixa de areia original do local. Por efeito do espigão, um novo ambiente tem sido formado em área lateral à estrutura construída, em sua porção terrestre, atualmente com restinga incipiente. A área de estudo conta com vegetação em estágios. Com o objetivo de entender o caminho da colonização vegetal na área e o desenvolvimento do processo a partir da cobertura vegetal, oito áreas de foram levantadas, registrando-se as tipologias em desenvolvimento e as espécies em instalação. O ambiente natural atual constitui uma estrutura física de arrumação e o ambiente biológico, incluindo microrganismos, flora e fauna, é estimulado pela arrumação física que se desenvolve.  Na flora que se estabelece, vegetação herbácea de praias e dunas, vegetação arbustiva tipo escrube e formação arbórea baixa são as tipologias vegetacionais diferenciadas no ambiente em formação. Como esperado em áreas de sucessão, baixo número de espécies com elevado número de indivíduos por espécie. Entre as espécies registradas, naturais do ambiente de restinga, mas também secundárias, invasoras e ruderais.
Análise da fragilidade ambiental na bacia hidrográfica do Arroio Chasqueiro e do seu distrito de irrigação – RS
Authors: Fehrenbach Arlene , Bugoni Riquetti Nelva , Marinho Soares Gonçalves George , Kruger Bartels Guilherme , Loguercio Collares Gilberto
Published: July 2024

A avaliação da fragilidade ambiental caracteriza-se como um instrumento essencial para o planejamento territorial, tendo como princípio básico identificar as áreas suscetíveis aos processos de degradação do solo. A fragilidade pode ser dividida entre aquela atrelada aos fatores intrínsecos ao ambiente natural, ou aquela ligada ao uso e ocupação do solo. Neste estudo utilizou-se de uma análise multicritério, atrelada a técnicas de Sistema de Informação Geográfica (SIG), e dados de Sensoriamento Remoto para avaliar a fragilidade ambiental potencial, relacionada aos fatores naturais (geologia, pedologia, relevo e precipitação), bem como a fragilidade ambiental emergente, que considera as atividades antropogênicas, voltadas ao uso e ocupação do solo. Os resultados mostram que para a fragilidade ambiental potencial, assim como a emergente, as classes mais representativas são a baixa e a média, respectivamente. Esses resultados indicam que, a área possui baixa susceptibilidade natural a sofrer danos, porém, quando são implementadas ações antrópicas, existe possibilidade de ocorrer processos degradantes, sendo necessária uma gestão efetiva, com adoção de práticas conservacionistas.
Geomorfologia fluvial e geodiversidade do Lago de Tefé (Tefé, Amazonas, Brasil)
Authors: Gadelha da Silva Tamna , Braz Rabelo Francisco Davy , De Brito Nunes Hikaro Kayo
Published: July 2024

A Geodiversidade é um tema que vem ganhando mais destaque de forma relativamente recente no meio científico e sua utilização tem apresentado resultados proeminentes no que tange à integração de aspectos naturais físicos e culturais. No Amazonas ainda são escassos os estudos com essa temática, o que motivou a realização deste trabalho, dada a relevância da compreensão dos processos envolvidos na geração da paisagem, sejam eles atuais ou antigos. Nesse contexto, este estudo teve como objetivo ampliar o conhecimento da Geodiversidade na região, a partir do levantamento da potencialidade de aspectos da geomorfologia fluvial do rio Tefé como indicadores de geodiversidade e sua aplicação na investigação dos processos físicos superficiais envolvidos nas praias da Juliana (Tefé) e Nogueira (Alvarães), Amazonas. Para identificação desses elementos, foram utilizadas geotecnologias como base dos métodos de elaboração de mapas temáticos para interpretações e inferências ambientais em conjunto com análises sedimentológicas. Como resultado, foram identificados aspectos geológicos-geomorfológicos e registros/feições sedimentares e processos superficiais associados, constituindo elementos da geomorfologia fluvial da região que contribuem para ampliação do tema Geodiversidade no Amazonas.
Análise multitemporal da dinâmica erosiva da ilha grande do tapará (Santarém, Pará) entre 1984 e 2020
Authors: Batista José Renan , Gonçalves Carolina , Andrade Milena Marilia
Published: July 2024

A compreensão da dinâmica fluvial por intermédio do processamento de imagens de satélites proporciona aplicações no planejamento urbano e ambiental de áreas de ocupação. Assim, as áreas propícias ao processo de erosão fluvial constituem riscos para os habitantes que residem nesses locais. O objetivo deste trabalho é realizar uma análise multitemporal da Ilha Grande do Tapará (Santarém-Pará) quanto aos padrões erosivos e de inundação durante um período de 1984-2020. Para isto, foram obtidas imagens de satélite Landsat 5 e 8 para o período de 1984 a 2020, onde foi feita a composição colorida e realizada uma análise multitemporal, possibilitando identificar e mensurar as taxas de erosão e sedimentação ocorridas. O principal resultado aponta para perda de 1.996,8135ha de 1984 a 2020 na margem oeste do lago, onde se situava a antiga localização da comunidade Fátima de Urucurituba que foi realocada devido processos de erosão fluvial. Assim, os resultados permitiram identificar as modificações no relevo da área de estudo, calcular as erosões e sedimentações ocorridas nas margens que podem dar subsídios de gestão na identificação de potenciais comunidades afetadas por processos erosivos.
Propriedades térmicas do solo: estudo de caso em uma região do semiárido alagoano no nordeste brasileiro
Authors: Alves Pericles , Boursheidt Vandoir , Querino Carlos Alexandre , Moura Marcos Antônio
Published: July 2024

Em um contexto de mudanças climáticas globais, o monitoramento da temperatura do solo é de grande relevância para o entendimento das trocas energéticas do solo com a atmosfera e, portanto, para o balanço energético. Esse estudo foi conduzido em uma área de Caatinga (09º42,664’ S; 37º25,008’ W; 165m) no semiárido alagoano, cujo solo foi classificado como Franco-Argilo-Arenoso. O objetivo deste trabalho foi determinar algumas propriedades térmicas do solo utilizando dados de temperatura do solo e, de maneira indireta, investigar o impacto da precipitação sobre essas propriedades. No intuito de calcular a difusividade térmica do solo (K), foram utilizados três métodos distintos: amplitude, fase e logarítmico, além das variáveis profundidade de amortecimento, velocidade de propagação da onda e inércia térmica aparente. Para isso foram medidas temperaturas do solo nas profundidades de 0,01; 0,05; 0,10; 0,20 e 0,50m  utilizando termopares do tipo E (cobre- constantan). A difusividade térmica do solo diária se encontra dentro das faixas relatadas na literatura para o nordeste do Brasil. Constatou-se a influência da chuva na K, a qual alcançou máximos no período chuvoso, independentemente do método e da profundidade da camada considerada. Também foram constatados picos de K na época seca durante ocorrências de chuvas significativas. Em média, a difusividade térmica aumentou em 1,38 vezes com o umedecimento do solo.
Variabilidade temporal dos atributos da estação chuvosa de Palmas, Tocantins
Authors: Silva Roberta Araújo e , Cirqueira dos Santos Vinicius , Figueiredo Maciel Girlene
Published: July 2024

Palmas, Tocantins, a cidade construída em meio a exuberância do Cerrado, possui apenas seis meses do ano de precipitação, sofre com abastecimento de água e a ocorrência de queimadas no período de estiagem. Dessa forma, compreender a dinâmica e identifica as possíveis mudanças dos atributos (início, fim, duração e total acumulado de precipitação) da estação chuvosa de Palmas, é informação relevante para vários setores, principalmente para agricultura, planejamento de recursos hídricos e saúde. Perante isso, o objetivo desse trabalho foi identificar e avaliar estatisticamente os atributos da estação chuvosa de Palmas, Tocantins, para o período de 1995 a 2021. Os atributos da estação chuvosa foram obtidos pela metodologia de Sansigolo (1989). A verificação da existência de tendência e eventuais mudanças bruscas na média da série temporal dos atributos foram obtidos através dos testes estatísticos não-paramétricos de Mann-Kendall, Sen’s e Pettitt. As tendências anuais encontradas nesse estudo corroboram com resultados de outras pesquisas para o bioma Cerrado, evidenciando mudanças no comportamento da estação chuvosa de Palmas, Tocantins, possivelmente – como apontado por outras pesquisas – em decorrência de mudanças no uso e ocupação do solo.
Fabaceae Lind. de um Fragmento Vegetacional da Amazônia maranhense, Brasil
Authors: Da Cruz Silva Eduardo , Sousa da Silva Guilherme , DE OLIVEIRA REGIGLAUCIA RODRIGUES , Texeira de Queiroz Rubens , Mendes da Conceição Gonçalo
Published: July 2024

Objetivou-se conhecer a diversidade de Fabaceae em um fragmento vegetacional da Amazônia maranhense em Nova Olinda do Maranhão-MA. O material de estudo foi coletado em trilhas aleatórias e após estudado depositado no herbário Prof. Aluísio Bittencourt (HABIT). Para a identificação material usamos literatura especializada e determinação por especialistas. Como resultado foram encontradas 47 espécies, 29 gêneros e cinco subfamílias. Papilionoideae foi a subfamília mais representativa com 28 espécies. Quanto ao hábito o que se destacou foi o subarbustivo (19 espécies), arbóreo (12 espécies), liana (seis espécies), arbustivo (cinco espécies) e erva (cinco espécies). Como destaque foram catalogadas sete espécies endêmicas da Amazônia brasileira e registrado três novas ocorrências de Fabaceae para o Maranhão. Além disto elaboramos uma chave de identificação taxonômica e prancha fotográfica das espécies encontradas. Este trabalho amplia a circunscrição de espécies de Fabaceae nos fragmentos amazônicos do Município de Nova Olinda do Maranhão permitindo conhecer melhor este grupo, enfatizando a importância de novos levantamentos florísticos na região.
Applicability of sediment rating curves: analysis in the state of Rio Grande do Sul
Authors: Dorneles Viviane , Wojahn Victória de Souza , Beskow Samuel , Nunes Maria Cândida Moitinho
Published: July 2024

The transport of sediments is present in all watercourses, occurring naturally, however, in different ways and characteristics. Its quantification in watersheds becomes extremely important for the planning and management of water resources. The sediment rating curve, which empirically describes the relationship between stream flow and suspended sediment concentration (Css), is an alternative tool to the lack of continuous monitoring of sediment transport. The aim of this research was to evaluate the use of rating curves in sedimentometric stations in Rio Grande do Sul, Brazil. Three Css data handling scenarios were tested for the analytical fitting of sediment rating curves considering a power function as follows: complete data sets, data sets subdivided into 10-year periods and subdivided into stream flow ranges. The approaches adopted in the present study were evaluated taking as reference  58 sedimentometric stations in the state. The goodness-of-fit tests used in this study - coefficient of determination, Relative Average Percentage Error and Nash Sutcliffe coefficient, indicated that the best results of the estimation of sediment transport were observed when the sediment rating curve was fitted to the 10-year period data set.
Ambiente ecologicamente equilibrado
Authors: Da Silva Alves de Lima Marcos Vinícius , Silva Joelmir Marques da
Published: July 2024

A Constituição Federal de 1988 estabelece o direito ao meio ambiente equilibrado como fundamental, entretanto, sua implementação em instrumentos infraconstitucionais enfrenta desafios na garantia da qualidade de vida. Localmente, desde 1996, a Cidade do Recife tem se alinhado com a tendência nacional de promover legislações ambientais mais rigorosaspor vivenciar uma emergência sócio-geográfico-ambiental marcada pela desigualdade social, alta densidade demográfica e crise climática, evidenciada nos últimos relatórios do Intergovernmental Panel on Climate Change. Nesse sentido, tanto em nível nacional como local, a arborização urbanasurge como um importante instrumento para melhorar a condição sanitária das cidadese potencializar a resiliência dessa frente àsmudanças.Dessa forma, objetiva-se com este artigo realizar uma análise das políticas públicas ambientais do Recife em paralelo com os avanços constitucionais de 1988 e outros instrumentos legais brasileiros. Para isso, foi realizada a análise de conteúdo das políticas públicas nacionais e locais, além da obtenção de dados diagnósticos da condição ambiental do Brasil e do Recife. Verificou-se que apesar do alinhamento das legislações ambientais com conceitos técnico-científicos de consenso internacional, a prática dos órgãos responsáveis por sua implementação é cerceada por limitadosrecursos humanos e financeiros, influenciando negativamente na distribuição e qualidade de áreas arborizadas. Outro ponto é a disponibilidade desigual de espaços arborizados na cidade, com o favorecimento de áreas urbanas com população majoritariamente branca. Assim, é necessário fortalecer os mecanismos legais, investir em educação ambiental e fomentar a colaboração entre os setores público e privado para garantir a efetiva proteção do meio ambiente e qualidade de vida.
Picture-Cued Sequence Task: How Does It Effect to Students’ English Writing Ability?
Authors: Septyaningrum Lala , Wiyaka Wiyaka , Prastikawati Entika Fani
Published: July 2024

The research aimed to find out the effect of picture-cued sequence tasks (PCST) in improving students’ writing ability and the students’ perspectives on the use of PCST in writing. This research carried out quantitative method and quasi experimental design, conducted by using pre-test, treatment, and post- test. The researchers also gave the closed questionnaire to the class who were taught by using PCST. The population was the 8th students of SMP N 6 Semarang in the academic year 2024/2025. The samples were 8F as a control group and 8H as an experimental group. The control group was taught without using PCST; however, the experimental group was taught by using PCST. The data was collected by giving the writing test about recount text and closed questionnaire to 8H class. The researchers analyzed the collected data by using a t-test. The result of data analysis showed that the value of t-count higher than t-table (9.976>2.042) at the level of significant of a 0,025 and degree of freedom is 31. It means that the (Ha) was accepted and (Ho) was rejected. To add, the result of closed questionnaire also proved that the use of PCST have an effectiveness in improving students’ writing ability.
Safety evaluation of an extension of use of the food enzyme oryzin from the non‐genetically modified Aspergillus ochraceus strain AE‐P
Authors:   EFSA Panel on Food Enzymes (FEZ), Zorn Holger , Barat Baviera José Manuel , Bolognesi Claudia , Catania Francesco , Gadermaier Gabriele , Greiner Ralf , Mayo Baltasar , Mortensen Alicja , Roos Yrjö Henrik , Solano Marize L. M. , Sramkova Monika , Van Loveren Henk , Vernis Laurence , Cavanna Daniele , Liu Yi , di Piazza Giulio
Published: July 2024

Abstract
The food enzyme oryzin (EC 3.4.21.63) is produced with the non‐genetically modified Aspergillus ochraceus strain AE‐P by Amano Enzyme Inc. A safety evaluation of this food enzyme was made previously, in which EFSA concluded that this food enzyme did not give rise to safety concerns when used in nine food manufacturing processes. Subsequently, the applicant has requested to extend its use to one additional process, to withdraw two food processes and to revise the use levels. In this assessment, EFSA updated the safety evaluation of this food enzyme when used in a total of eight food manufacturing processes. The dietary exposure to the food enzyme‐total organic solids (TOS) was calculated to be up to 0.354 mg TOS/kg body weight (bw) per day in European populations. When combined with the no observed adverse effect level reported in the previous opinion (1862 mg TOS/kg bw per day, the highest dose tested), the Panel derived a margin of exposure of at least 5260. Based on the data provided for the previous evaluation and the revised margin of exposure in the present evaluation, the Panel concluded that this food enzyme does not give rise to safety concerns under the revised intended conditions of use.
Safety evaluation of an extension of use of the food enzyme triacylglycerol lipase from the non‐genetically modified Rhizopus arrhizus strain AE‐TL(B)
Authors:   EFSA Panel on Food Enzymes (FEZ), Zorn Holger , Barat Baviera José Manuel , Bolognesi Claudia , Catania Francesco , Gadermaier Gabriele , Greiner Ralf , Mayo Baltasar , Mortensen Alicja , Roos Yrjö Henrik , Solano Marize L. M. , Sramkova Monika , Van Loveren Henk , Vernis Laurence , Cavanna Daniele , Liu Yi , Ferreira de Sousa Rita
Published: July 2024

Abstract
The food enzyme triacylglycerol lipase (triacylglycerol acylhydrolase; EC 3.1.1.3) is produced with the non‐genetically modified Rhizopus arrhizus strain AE‐TL(B) by Amano Enzyme Inc. A safety evaluation of this food enzyme was made previously, in which EFSA concluded that this food enzyme did not give rise to safety concerns when used in two food manufacturing processes. Subsequently, the applicant requested to extend its use to include four additional processes and to revise the use levels. In this assessment, EFSA updated the safety evaluation of this food enzyme when used in a total of six food manufacturing processes. As the food enzyme‐total organic solids (TOS) are removed from one food manufacturing process, the dietary exposure to the food enzyme‐TOS was estimated only for the remaining five processes. Dietary exposure was calculated to be up to 0.086 mg TOS/kg body weight (bw) per day in European populations. When combined with the no observed adverse effect level reported in the previous opinion (1960 mg TOS/kg bw per day, the highest dose tested), the Panel derived a margin of exposure of at least 22,791. Based on the data provided for the previous evaluation and the revised margin of exposure in the present evaluation, the Panel concluded that this food enzyme does not give rise to safety concerns under the revised intended conditions of use.
Project-Based Learning to Enhance Students’ Creative Thinking Skill on Language Learning
Authors: ARIFATIN FAIS WAHIDATUL
Published: July 2024

This research investigates the effectiveness of project-based learning in enhancing students' creative thinking skills in language learning. The aim is to explore the impact of project-based learning strategies, collaboration, technology integration, and real-world contexts on students' creative thinking abilities. Qualitative research approach was utilized, including surveys, observations, and project assessments. This research was applied to students at MTS Muhammadiyah 13 Solokuro who are currently starting to use the independent curriculum (Kurikulum Merdeka) in grade 7. The results indicate a positive impact of project-based learning on students' creative thinking skills, with improvements observed in idea generation, critical thinking, and problem-solving abilities. Collaboration and communication were found to be crucial elements in fostering creative thinking. The integration of technology and real-world contexts further enhanced students' creativity. The study highlights the importance of project-based learning in promoting students' motivation and engagement in language learning. However, there is a need for further research to explore long-term effects, individual differences, assessment strategies, teacher professional development, comparative studies, and generalizability. These findings provide insights for educators to effectively implement project-based learning and cultivate students' creative thinking skills in language education.
The Differences on the Grammar Learning Strategies Used Based on the Students’ Gender Perspective
Authors: FITRI GESNA , YUNITA WISMA , HARAHAP ALAMSY AH
Published: July 2024

Learning grammar is an essential thing in learning new language and a strategy in learning grammar is needed to cope with it. The research aimed to investigate the grammar learning strategy that was used by English students at Muhammadiyah University of Bengkulu based on the gender. A quantitative reseach design was carried out to collect and analyse the data. The participants were 37 male and 96 female English students who studied at the English education study program of Muhammadiyah University of Bengkulu. The data were collected by using questionnaire and they were analysed quantitatively. The result revealed that there was the difference strategy used by male and female students in learning grammar. The male students tended to use the Cognitive strategy meanwhile the female students preferred to use the social strategies. Based on the result, it was concluded that the English students seemed to choose the grammar learning strategy based on their interest to enhance their grammatical competency.
Analyzing Profil Pelajar Pancasila Values in Elementary School Textbook
Authors: Permana Dio Resta , Agusta Okky Leo
Published: July 2024

This study aimed at investigating Profil Pelajar Pancasila Values in English textbooks “My Next Words” for elementary school students of Merdeka Curriculum. This analysis was really needed to explore the character education material proposed in the Merdeka Curriculum to form elementary students with noble values. A content analysis technique was employed in this current study. The result of the study showed that the existence of Profil Pelajar Pancasila values related to Critical Reasoning as the most frequent occurrence category. Then, there were character values related to Having Faith, Fearing God, Having Character and Being Independent. In internalizing Profil Pelajar Pancasila Values, teachers must be active in making integration character values from texts and pictures in the textbook with their lesson plan. These findings lead to the conclusion that the upcoming textbooks should pay attention in the distribution of character values and the role of the teachers in teaching the characters should be maximized.