bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital currencies as an alternative investment
Authors:   Finance, Business Department, Faculty of commerce and Business Administration, FutureUniversity  in Egypt, Srour Heba Mohamed
Published: September 2023

Purpose: The study intends to examine the movement of digital currency prices over time and compare it to the movement of financial indicators in various stock exchanges to determine whether or not modern digital currencies can represent a global alternative to investing in financial stock exchanges, given their low transaction costs and information confidentiality, which makes them more appealing to some investors. Hypotheses: The research is based on testing two basic hypotheses (1) There is no statistically significant relationship between the movement of digital currency prices and stock index fluctuations. (2) Digital currencies cannot be used as a substitute for stock market investing. Methodology: The statistical study was conducted from January 1, 2010, to July 15, 2022, using a sample of thirteen MENA region countries' indices, as well as three global indices represented by Nasdaq, Dow Jones, and American Standard & Poor's, to represent the fluctuations of these indices. The movements of financial stock exchanges, as well as the ten most active digital currencies in terms of transaction volume at the time of the research, were used as indicators. The STATA statistical program was also employed for correlation analyses. Results: Standard deviations of samples showed that traditional currency markets are more stable than virtual ones. Because of this, it's clear that financial stock exchange traders can't use digital currencies as an alternative investment.
A comprehensive model for factors affecting the usage of computer‑assisted auditing tools and techniques
Authors:   Accounting department, Faculty of Commerce and Business Administration, Future University in Egypt, Eissa Ola Mohamed Shawky
Published: September 2023

The paper aims to highlight the most important factors affecting using computer-assisted auditing tools and techniques, with special attention given to three levels covering these factors: environmental level, audit firm level, and individual level. This requires two steps. The first one is to argue the models used in the adoption and implementation of technology. The second step is to review the academic literature on auditing that examines the factors affecting the usage of computer-assisted auditing tools and techniques. The researcher has presented a conceptual framework for a comprehensive understanding of factors affecting the use of computer-assisted auditing tools and techniques, which is beneficial for professional bodies and audit firms as well as researchers.
Climate activism, environmental justice and ecopedagogy – a collaboration project between FFF activists and teacher candidates in Austria
Authors: Kowasch Matthias
Published: September 2023

This article contributes to political ecologies of education by connecting climate activism in Austria to questions of environmental justice and ecopedagogy. Based on a collaboration project between trainee teachers and secondary school students in Graz (Austria), the article analyses student group essays and photo reports dealing with ideas and solutions to combat the climate crisis and to enable socio-ecological transformation. Interviews with Fridays for Future (FFF) strike participants complete the analysis. I discuss propositions related to the concepts of activism, ecopedagogy, environmental and climate justice, and especially the principle of responsibility. I show that the school collaboration project and common participation in a climate strike contributed to civic engagement and research-based learning. Trainee teachers and school students exchanged ideas and co-created knowledge to fight against the climate crisis, and the collaboration opened a dialogue in a democratic classroom, arguably helping to develop participants' intrinsic motivation. While some of the ideas proposed are reformist or oppositional, for example to eat less meat, others are propositional, advocating for system change. A conclusion is that the climate movement is represented by a diversity of voices and opinions.
Implementasi Sistem Informasi UKM USN Kolaka Menggunakan Metode Waterfall dan Framework PIECES
Authors: Mardianto Mardianto , Sari Jayanti Yusmah , Bantun Suharsono
Published: September 2023

Universitas Sembilanbelas November Kolaka (USN Kolaka) memiliki beberapa jenis Unit Kegiatan Mahasiswa (UKM) sebagai sarana bagi mahasiswa untuk mengembangkan bakat, minat dan kreatifitasnya. Berdasarkan hasil observasi ditemukan permasalahan belum terkomputerisasinya pendataan UKM yang ada di USN Kolaka. Seperti dalam pendaftaran anggota barupun masih menggunakan formulir kertas yang rawan hilang dan rusak. Berdasarkan permasalah yang ditemukan maka penelitian ini bertujuan untuk merancang sistem informasi UKM yang ada di USN Kolaka. Kemudian untuk menilai kelayakan sistemnya digunakan metode PIECES. Adapun hasil dari penelitian ini adalah sistem yang dibangun terbebas dari kesalahan program hal itu diketahui dari menggunakan metode black box testing. Kesimpulan selanjutnya adalah Berdasarkan analisis metode PIECES terhadap kepuasan pengguna dalam menggunakan sistem informasi UKM USN Kolaka. Untuk variabel performance, information, economic, control, efficiency dan services. Maka dalam tingkat kepuasan pengguna terhadap sistem informasi diperoleh nilai rata-rata untuk masing-masing indikator yaitu indikator performance memperoleh nilai 4,10 dengan kategori Baik, information, economy, control, efficiency, dan services masing-masing mendapat nilai secara berututan 4,13, 4,18, 3,97, 4,19, dan 4,17. Ke lima variabel tersebut mendapatkan kategori Baik.
Pemodelan Text Mining dalam Pengkodean Penyakit Pasien Berdasar Kode ICD 10
Authors: Parjono Parjono , Kusumadewi Sri
Published: September 2023

Pengkodean penyakit yang lazim dilakukan oleh Rumah Sakit adalah menggunakan 2 metode, yang pertama adalah klinisi/ dokter menuliskan numenklatur penyakit berdasarkan kode ICD-10 dengan panduan kamus ICD-10 yang dapat berupa elektronik maupun buku. Metode kedua adalah klinisi/ dokter menulis secara free-text kemudian petugas koding dari rekam medis yang memberikan kode penyakit berdasar kode ICD-10 dan apabila ada hal yang sekiranya diragukan, petugas koding akan mengkonfirmasi ke dokter yang merawat pasien. Dari kebanyakan diagnosis medis yang berupa deskripsi free-text, kemiripan makna serta istilah medis yang memiliki kekhususan daripada istilah umum akan menjadi tantangan tersendiri dalam mengekstrak informasi yang berada di dalamnya. Hal ini yang mendorong penulis untuk membuat pendekatan koding penyakit dengan pememodelkan Text Mining dalam membantu pengkodean penyakit tersebut melalui data diagnosis dokter sehingga diharapkan proses pengkodean penyakit menjadi lebih cepat dan mengurangi aspek human error khususnya untuk penyakit di Indonesia. Metode pendekatan yang diterapkan adalah Clinical Text Mining dengan Natural Language Processing dimana metode ini dirasa paling tepat untuk mengekstraksi informasi dari diagnosis dokter yang tidak terstruktur. Data diambil dari Rumah Sakit bagian poliklinik penyakit dalam sejumlah 3787 data dengan 5 kategori kode ICD 10 yakni E11.9 Type 2 diabetes mellitus without complications, I10 Essential (primary) hypertension, I11.9 Hypertensive heart disease without (congestive) heart failure, K21.9 Gastro-oesophageal reflux disease without oesophagitis, K30 Functional dyspepsia  dengan pembagian komposisi data untuk training dan testing adalah 70:30 proses ekstraksi melalui tahapan case folding, contraction untuk pencocokan dengan kamus singkatan, tokenization, stop word removal dan menggunakan word2vec untuk proses konversi kata yang berupa karakter alphanumeric kedalam bentuk vector dari hasil pemodelan menggunakan Neural Network didapatkan nilai performa model cukup baik yakni memiliki akurasi 86.8%.
Manajemen Risiko Sistem Informasi Pengarsipan menggunakan NIST SP 800-30 pada Kopertis Wilayah IV Bandung
Authors: Arifnur Adi Arga , Heryanto Hery , Megasyah Yoga
Published: September 2023

Seiring perkembangan Teknologi informasi, kebutuhan keamanan sistem untuk layanan koordinator pendidikan di Perguruan Tinggi Swasta semakin tinggi. Hal ini dikarenakan banyaknya kasus penyerangan yang terjadi belakangan ini terutama terhadap sistem berbasis Web. surat.kopertis4.or.id adalah salah satu sistem informasi (SI) berbasis web yang digunakan oleh beberapa pegawai Kopertis IV Bandung untuk mengarsipkan surat berhubungan dengan kegiatan pengaduan, permohonan, dan konsultasi. Permasalahan yang terjadi pada Kopertis IV Bandung adalah belum ada standar manajemen risiko untuk menemukan risiko potensial dan menentukan cara penanggulangan risiko yang terjadi pada SI Pengarsipannya. Dengan demikian perlu adanya kegiatan penilaian dan rekomendasi kontrol risiko pada sistem tersebut. Tujuannya agar para pemangku kepentingan mendapatkan pengetahuan penanganan risiko berdasarkan standarisasi. Proses manajemen risiko menggunakan framework NIST SP800-30 yang telah terstandarisasi oleh Pemerintah Pusat Amerika Serikat serta sesuai dengan panduan penerapan tata kelola keamanan informasi bagi penyelenggara pelayanan publik yang dikeluarkan oleh Kementerian Komunikasi dan Informatika RI. Ada 2 proses yang dikerjakan berdasarkan framework NIST yaitu Risk Assessment dan Risk Mitigation. Metodologi Risk Assessment dikerjakan terlebih dahulu dengan menganalisis data-data yang telah didapatkan dari proses wawancara, kuisioner, dan observasi. Aplikasi Network Mapper digunakan sebagai teknik tambahan untuk mencari kerentanan sistem. Setelah itu, metodologi Risk Mitigation dilakukan untuk menyusun strategi mitigasi risiko berdasarkan hasil Risk Assessment. Hasilnya terdapat 20 isu risiko dalam penggunaan SI Pengarsipan. 10 diantaranya berlevel medium dan selebihnya berlevel low. Terdapat 5 terbesar dari 20 isu risiko tersebut diantaranya Mati Listrik (Medium(50)), Stabilitas Daya Listrik (Medium(50)), Penurunan Kinerja AC (Medium(50)), Renovasi Ruangan (Medium(50)), Insiders (Medium(50)), dan Cracker (Medium(50)).
Algorithms for extracting information from problem-oriented texts on the example of government contracts
Authors: Nikitin Petr Vladimirovich , Gorokhova Rimma Ivanovna , Bakhtina Elena Yur'evna , Dolgov Vitalii Igorevich , Korovin Dmitrii Igorevich
Published: September 2023

The research is aimed at solving the problem of the execution of government contracts, the importance of using unstructured information and possible methods of analysis to improve the control and management of this process. The execution of government contracts has a direct impact on the security of the country, its interests, economy and political stability. Proper execution of these contracts contributes to the protection of national interests and ensures the security of the country in every sense. The object of research is algorithms used to extract information from texts. These algorithms include machine learning technologies and natural language processing. They are able to automatically find and structure various entities and data from government contracts. The scientific novelty of this study is the accounting of unstructured information in the analysis of the execution of government contracts. The authors drew attention to the problem-oriented texts in the contract documentation and suggested analyzing them with numerical indicators to assess the current state of the contract. Thus, a contribution was made to the development of methods for analyzing government contracts by taking into account unstructured information. The proposed methods for analyzing problem-oriented texts using machine learning. This approach can significantly improve the evaluation and management of the execution of government contracts. The results of the interpretation of problem-oriented texts can be used to optimize the risk assessment model for the execution of a government contract, as well as to increase its accuracy and efficiency.
A NEW SPECIES OF THE HAMMERAE-GROUP OF THE GENUS ANURIDA LABOULBÈNE, 1865 (COLLEMBOLA: NEANURIDAE) FROM PRIMORSKY KRAI
Authors:   Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia, Babenko A.B.
Published: September 2023

Anurida octoculata sp. n. is described from a protected coniferous-broadleaved forest of the Vladivostok Botanical Garden. The species belongs to the Beringian hammerae-group, which occupies a rather isolated position within the genus. The most characteristic feature of the new species is reduction of axial chaetotaxy, namely, the absence of setae p1 on all terga from Th.2 to Abd.4. Among the species of the group with a low number of ocelli, it shares this character with only two known congeners: A. reducta Fjellberg and A. narli Fjellberg, but it can easily be distinguished by the number of ocelli, the fine structure of the maxillary head, and peculiarities of chaetotaxy. New distribution data on A. hirsuta Babenko et Nakamori and A. elegans Babenko, Shveenkova et Kuznetsova are given also.
Peran kepuasan konsumen sebagai pemediasi determinan yang mempengaruhi niat beli ulang kacamata resep
Authors: Nuvida Levya Otivian , DC Kuswardani , Sudjito Sudjito
Published: September 2023

Lingkungan bisnis yang semakin ketat dan kompetitif menuntut perusahaan untuk menyesuaikan diri pada setiap perubahan yang terjadi serta siap menerima semua tantangan yang ada. Keberlangsungan suatu optik terletak pada keberhasilan optik tersebut membawa para konsumennya tetap setia melakukan pembelian ulang kacamata resep untuk keberhasilan rehabilitasi refraksi. Penjualan optik XYZ masih jauh berada dibawah para kompetitornya sehingga perlu merumuskan strategi yang tepat agar dapat meningkatkan niat beli ulang. Tujuan penelitian ini adalah untuk mengetahui dan menjelaskan apakah ada pengaruh atribut produk, pengalaman konsumen dan nilai yang dirasakan terhadap niat beli ulang. Pengambilan sampel menggunakan teknik non probability sampling yaitu sebanyak 126 reseponden diolah menggunakan path analysis dengan bantuan Smart PLS versi 4.0. Experiential marketing theory dipilih sebagai pisau analisis pada penelitian ini. Hasil penelitian menunjukkan bahwa variabel atribut produk, pengalaman konsumen dan nilai yang dirasakan berpengaruh terhadap niat beli ulang serta kepuasan konsumen terbukti secara statistik mampu memediasi pengaruh atribut produk terhadap niat beli ulang. Optik XYZ diharapkan mampu untuk terus memberikan kelengkapan produk yang akan memberikan nilai ekslusivitas yang diharapkan oleh konsumennya agar niat untuk membeli ulang semakin meningkat dari waktu ke waktu. 

An increasingly tight and competitive business environment requires companies to adapt to every change and be ready to accept all existing challenges. An optic's sustainability lies in its success in bringing its consumers to remain loyal in repurchasing prescription glasses for successful refractive rehabilitation. XYZ optical sales are still far below its competitors, so it is necessary to formulate the right strategy to increase repurchase intentions. This research aims to find out and explain whether product attributes, consumer experience, and perceived value influence repurchase intention. Sampling used a non-probability sampling technique; 126 respondents were processed using path analysis with the help of Smart PLS version 4.0. Experiential marketing theory was chosen as the analytical tool in this research. The research results show that the variables of product attributes, consumer experience, and perceived value influence repurchase intentions, and consumer satisfaction is statistically proven to mediate the influence of product attributes on repurchase intentions. Optik XYZ must be able to provide complete products that will provide the exclusivity value expected by consumers so that their intention to repurchase increases over time.
Spaces Between: Urban Alleys as Sites of Collage
Authors:   , Wilson Hamish
Published: September 2023

Wellington is a dense urban environment that is walkable. People move through it as they go about their lives, walking down alleyways and passages, crossing roads and then slipping through between buildings. The city’s form and mass is threaded through by interstitial spaces that allow people to remake its form, collaging its elements into new arrangements through their personal trajectories.

However, these interstitial spaces— alleyways, passageways— are often underdeveloped and neglected, becoming unpleasant ways to move through the city. But these spaces could be considered active thresholds, possessing complex spatial qualities that, if reimagined, could provide opportunities to revitalise and positively contribute to the urban environment.

This thesis explores how these urban spaces might be re-imagined through the medium of collage.

The inherent spatial complexity of alleyways, that give an urban walker so many possibilities to mix, juxtapose and compress their spatial experience, is intensified through design research experiments utilising collage. In doing so, this thesis adds to understandings of the city, its possibility, and to collage as a way to compose complex spatial, architectural propositions.

In this research, collage is used as a provocative tool, to re-imagine the city’s alleyway spaces. Collage is experimented with as a two-dimensional, image-based practice, and gradually brought to three-dimensions, allowing the representation of context and space to generate new ways of understanding the city, as an architectural collage.

This research follows an iterative design research methodology, where collage is both the generator of the design work and the framework for the process: many different design experiments were combined, recombined and interacted with one another to create a speculative, collaged urban architecture.

This research is thus approached through a speculative lens, using qualitative and exploratory techniques.

It follows a general framework of three scales of investigation, with each informing the other in an iterative series: an installation scale project, a midscale project, and a final architectural project at public scale.

The outcome of this study is both a series of architectural propositions and a re-imaging of Wellington’s alleys and urban environment.

The research contributes to understandings of the architectural discipline in terms of drawing, specifically collage, and its connection to the shape and texture of a city. The city’s alleyways and passages become collage architecture, threading through the city, adding to the vibrancy of urban experience.
Any Time, Any Wear: Enhancing wearer experience through adaptable garments
Authors:   , Etherington Alexandra
Published: September 2023

Existing garments are presented as a ‘closed’ item, limiting the wearer’s ability to make adaptations to suit their changing needs. This research asks: How does the creation of Wearer-Driven-Garments (WDG) inform a new kind of physical relationship between body and cloth? Through human-centred design and participatory design methodologies, 32 in-depth interviews were conducted from a group of 149 wearers, aged 18-65+ across New Zealand, to understand existing body-cloth relationships. From that 32, 6 wearers then experienced a spectrum of body-cloth relationships, from ‘closed’ garments such as flat pattern making, to ‘open’ an experimental approach such as the Amoeba. The resolved body-cloth prototype of Any Time, Any Wear (ATAW) explores how wearers can use adaptability and morphability for the personalisation of their changing needs. The wearer has the option of three main points - Static Points, Points of Flexibility and Closures points – to increase creative autonomy and the relationship between themselves and the item of clothing. Any Time, Any Wear aims to redefine the body-cloth relationship, while potentially enhancing wearer- value and reduce environmental impact.
Covid-19 in Brazil: Political controversies over social isolation measures to control the pandemic. A science vs. antiscience dispute?
Authors: Batista de Oliveira Monique , Said Vieira Miguel , Synesio Alves Monteiro Marko , Akerman Marco
Published: September 2023

The Covid-19 pandemic has narrowed the relationship between scientists and leaders around the world, with challenging decisions shared by both areas. Social isolation measures in Brazil as a way to control Sars-CoV-2 cases were involved in an intense political debate. Our aim in this article is to establish whether this dispute can be perceived as a science vs. antiscience controversy. In order to do so, we used criteria based on the Social Studies of Science and Technology (STS), which understands science fact as co-produced by social legitimation and influential actors, and Collins & Pinch approach to define an antiscientific discourse. By searches in the press and Twitter, from the first case of Sars-CoV-2 in Brazil — 25 February 2020 — until the 26th of April, we found three important political actors in the social isolation debate: 1) João Doria, governor of São Paulo; 2) Henrique Mandetta, ministry of Health; 3) Jair Bolsonaro, president of Brazil. Although there were different approaches in relation to science, with actor (1) dialoguing with an elite scientific community, actor (2) avoiding the debate initially, and referring to a more insulated science with selective debates; and actor (3) having a science-related populism approach, the investigation concluded that social isolation measures debate in Brazil were not polarized as a science vs. antiscience debate. Science and its symbolic authority were used by all actors to legitimate their positions, and, for this reason, we believe it would be very difficult for the general public to analyze whether these actors were using good quality evidence to support their positions. Further studies can invest in the analysis of social consensus production beyond scientific claims.

Keywords: Covid-19; dissent and disputes; social isolation, quarantine, antiscience, science controversy
Tapacurá y Covid-19: estudo comparativo do processo comunicacional da desinformação, boatos e notícias falsas
Authors: Maciel Betania
Published: September 2023

A partir de um fato ocorrido há quase um século, o boato sobre o rompimento da barragem de Tapacurá e tendo como comparação o desafio das fake news pela pandemia do Covid-19, nossa proposta é identificar elementos comuns do processo comunicacional que nos permitam lidar com a ameaça e o perigo da desinformação. Tomamos como base a teoria da Folkcomunicação, ampliada para compreender processos comunicativos alternativos aos meios de comunicação hegemônicos, compreendendo ainda que lendas urbanas e boatos são reconfigurados através das tecnologias de informação e comunicação, incluindo as redes sociais e as ferramentas de comunicação instantânea como o Whatsapp. O estudo comparativo evidenciou o caráter dinâmica da comunicação, com a simplificação de fatos, a preocupação por bem-estar e segurança e a próprio caráter inquisitivo do ser humano como elementos que contribuem para a desinformação. Entretanto o caso mais recente da infodemia relacionada ao novo coronavírus mostrou o caráter político, ideológico e de favorecimento econômico que a desinformação assume, trazendo riscos para a convivência política e social.
Biochar in different topsoil type as alternative for increase the cassava development and soil quality
Authors: Martins Filho Argemiro Pereira , Da Françaa Rafaela Felix , De Medeirosa Erika Valente , Silvaa Renata Oliveira , Da Costa Diogo Paes , Simões Lucas Rodrigues , De Souzaa Carlos Alberto Fragoso , De Sousa Lima José Romualdo , Hammecker Claude , Araújo Adelson Paulo
Published: September 2023

The biochar applied to the soil create complex interactions that impact the plant development and soil quality. However, these interactions may vary among different sources to produce the biochar, the soil type, and plant cultivated. Here, we hypothesized that biochar from different sources exhibit different behaviors on different types of topsoil and impact on cassava growth. To test this hypothesis, one field experiment was implemented in a completely randomized design and double factorial scheme (2 x 4), combining two kinds of topsoils (Acrisol or Luvisol), and four sources of biochar: bean husk (BHB), soursop residue (SRB), coffee grounds (CGB) and control (CONT: soil without biochar), with four repetitions. Our analysis revealed that biochar applied to the two topsoil positively affected the cassava growth, such as number of leaves, plant height and fresh mass. The topsoil promoted increases in K+. BBH biochar added to Luvisol topsoil was considerably effective in promote the cassava growth and increase soil quality by increases the soil fertility, improving soil conditioning by increasing K+ levels. Overall, our findings expand our knowledge about biochar applied to topsoil and add important information that can be suitable for future exploration and the development of alternative strategies to waste reuse, increase plant production, and promote soil health.
Keywords: biocarbon, soil fertility; soil enzyme, management practices, main component analysis.
Tecnologia social de tratamento de água utilizando FiME com biomassa de moringa oleífera e bucha vegetal
Authors: Santos Luam de Oliveira , Sousa Inajá Francisco de , Silva Gabriel Francisco da , Barbosa Silvanito Alves
Published: September 2023

O problema de pesquisa é tornar a água de um barreiro trincheira, de péssima qualidade para consumo humano, em uma água de qualidade e segura para seu consumo utilizando técnicas simples e que possam ser replicadas pela comunidade. O uso da Moringa oleífera (MO) apresenta-se como boa alternativa de agente coagulante, indicada no sistema de tratamento de água, no seu processo de clarificação, além de ser biodegradável, dessa forma justifica-se o estudo do seu uso como tecnologia social a ser utilizada por populações ribeirinhas para tratamento da água de forma simples e eficaz. A hipótese desse projeto é: um sistema de tratamento de água utilizando coagulação com semente de MO e filtração em múltiplas etapas com biomassa de MO e bucha vegetal é eficaz no tratamento da água de barreiro trincheira para uso e consumo humano. Este projeto tem como objetivo a construção e avaliação de uma tecnologia social de tratamento de água utilizando a MO e a bucha vegetal em sistema de filtração em múltiplas etapas (FIME) domiciliar. O projeto será realizado em parceria da UFS com o IFS onde foram analisados parâmetros da água bruta assim como da água após os tratamentos.  Os parâmetros analisados foram, pH, cor aparente, turbidez, dureza total, dureza de cálcio, dureza de magnésio, cloretos, sódio, lítio e potássio, além das análises microbiológicas de coliformes totais e Escherichia coli. Nos resultados encontrados podemos perceber redução de até 97,66% da turbidez, 99,52% na cor aparente, 100% nos coliformes totais e Escherichia coli entre a água bruta e a água após o tratamento proposto.
Flora do Ceará e a Coleção Histórica de Philipp Von Luetzelburg o Henrbário EAC
Authors: Soares Neto Raimundo Luciano , Bezerra Loiola Maria Iracema , Moreno David de Aguiar , De Souza Sarah Sued Gomes
Published: September 2023

Entre os naturalistas/botânicos que desenvolveram inventários florísticos ou estudos taxonômicos no território cearense, destacamos Philipp von Luetzelburg que coletou em diferentes partes do território brasileiro e especificamente no Ceará, entre 1934-1937.  Suas coletas antecedem à criação do Herbário EAC no ano de 1939 na Universidade Federal do Ceará em Fortaleza.  Os estudos de Luetzelburg constituíram um dos primeiros esforços no intuito de reunir informações sobre as espécies vegetais e os tipos de fitofisionomias registrados no estado do Ceará. Vários espécimes coletados por Luetzelburg foram descritos como novos para a Ciência.Palavras-chave: cariri cearense; levantamento florístico; região nordeste; Brasil.                                                                                                                                 Flora of Ceará and the historical collection of Philipp von Luetzelburg in the EAC Herbarium A B S T R A C TAmong the naturalists/botanists who developed floristic inventories or taxonomic studies in Ceará territory, we highlight Philipp von Luetzelburg who collected in different parts of the Brazilian territory and specifically in Ceará, between 1934-1937. His collections precede the creation of the EAC Herbarium in 1939 at the Federal University of Ceará in Fortaleza. The Luetzelburg studies were one of the first efforts to gather information on plant species and types of phytophysiognomies recorded in the state of Ceará. Several specimens collected by Luetzelburg were described as new to Science.Keywords: cariri cearense; floristic survey; Northeast region; Brazil.
Visitantes florais e a sazonalidade climática nas espécies arbóreas de uma savana amazônica, Pará, Brasil
Authors: Souza Rosinaira Gonzaga de , Jardim Mário Augusto
Published: September 2023

Esta pesquisa teve como objetivo identificar os visitantes florais em seis espécies arbóreas em uma savana amazônica na localidade de Itapuá no município de Vigia de Nazaré, estado do Pará, Foram identificados e numerados dez indivíduos de Byrsonima crassifolia (L.) Kunth (Malpighiaceae), Curatella americana L. (Dilleniaceae), Himatanthus articulatus (Vahl) Woodson (Apocynaceae), Myrcia cuprea (O.Berg) Kiaersk. (Myrtaceae), Myrcia sylvatica (G.Mey) DC. (Myrtaceae) e Ouratea microdonta (Dalzell) Engl. (Ochnaceae). As observações de campo ocorreram quinzenalmente de outubro/2021 a setembro/2022 com a coleta diurna de visitantes florais no período mais chuvoso e menos chuvoso. A identificação ocorreu no Laboratório de Entomologia do Museu Paraense Emilio Goeldi. Foram coletados 1.687 indivíduos pertencentes a nove ordens, quatorze famílias, trinta gêneros e trinta e cinco espécies. Hymenoptera obteve o maior número de espécies (16) seguida por Coleoptera (12) que juntas representaram 80% do total de espécies. Formicidae (11), Curculionidae (5) e Apidae (4) obtiveram o maior número de espécies. Nove famílias registraram apenas uma espécie. Formicidae obteve 60% dos indivíduos coletados (1.013) e distribuídos em onze espécies onde Camponotus crassus e Cephalotes pusillus obtiveram o maior número de indivíduos; Curculionidae registrou cinco espécies e Andranthobius bondari o maior número de indivíduos e Apidae obteve quatro espécies e Trigona spinipes com mais indivíduos. As ordens Hymenoptera e Coleoptera são comuns em áreas de savanas e Camponotus crassus, Cephalotes pusillus, Andranthobius bondari e Trigona spinipes formaram o grupo de possíveis polinizadores como também evidenciaram a presença dessas espécies como indicadoras de degradação por atividades antrópicas. As condições climáticas influenciaram na dinâmica dos visitantes florais, demonstrando que o período chuvoso reduz o número de visitantes florais.
Effects of Exhaustion Gases from Biodiesel Blends on the Lichen Cladonia verticillaris: A Complimentary Evaluation
Authors: Silva Bruno Fonseca da , PEREIRA IWELTON MADSON CELESTINO , MELO JAMES CORREIA DE , MARTINS MÔNICA CRISTINA B , SILVA ANDREZZA KARLA DE O , LIMA DEYVSON NATANAEL DOS SANTOS , SILVA-BOTELHO JULIANE SALES , Pereira Eugênia C
Published: September 2023

The objective of this study was to evaluate the effects of gases emitted by blends of biodiesel with petroleum diesel at intermediate concentrations (between 10 % and 40 %) on the biochemistry of the lichen Cladonia verticillaris (Raddi) Fr. Samples of the respective species were exposed to the gases during a period of sixty minutes, using a stationary engine, with blends of 20 % (B20), 25 % (B25) and 30 % (B30) of biodiesel, from the oil from cotton, to petroleum diesel. In the period of 30, 60 and 90 days, the concentrations of primary metabolites (chlorophylls and pheophytins) and secondary (protocetraric acid and fumarprotocetraric acid) were determined. A control group was used for comparison purposes. The gases emitted during the combustion process were also evaluated at three times (0 minutes, 30 minutes and 60 minutes). The results did not show significant differences for chlorophylls, when all treatments and control materials were compared, however, variations were observed for the other metabolites. The concentration of protocetraric acid was higher compared to fumarprotocetraric acid, indicating that there were blocks in the synthesis of the metabolic pathway. Cluster analysis showed that for groups B20 and B25, pheophytins are related to CO2, while for B30 their chlorophylls are related to NO2. The results demonstrate that the respective mixtures do not affect the integrity of the species, confirming the recommendation to use mixtures of biodiesel with petroleum diesel up to 40 %.
Keywords: biofuels, environmental impact, living organisms, lichen substances, biomonitoring.
New Insights from Solanum fernandesii (Solanaceae)
Authors: Siqueira Jorge Izaquiel Alves de , Menezes Isac Santana , Sampaio Valéria da Silva , Andrade Ivanilza Moreira de , Lemos Jesus Rodrigues , Valle Luci de Senna
Published: September 2023

Solanum fernandesii is an unusual and important species of the genus Solanum, and it is the only known species within Solanum that has a petiolar gland. We provide new insights for this species endemic to Brazil, including a new record for the state of Piauí, Northeastern Brazil. S. fernandesii is distributed in the states of Piauí, Ceará, Bahia, Alagoas, Minas Gerais, and Pernambuco. Based on the use of online tools and field observations, its conservation status is classified as Least Concern for the Extension of Occurrence (754.583,610 km2) and Endangered for the Area of Occupancy (68.000 km2). We emphasize that serrated leaf margins, the presence of a petiole gland, and the shape of the calyx of fruits and seeds are important characteristics for the delimitation of this species. Taxonomic notes, field images, comments, and identification key for species of the genus Solanum in the study area are presented.
Key words: Caatinga, Flora of Piauí, Gardneri Clade, Petiolar glands.
Potencial Agrícola e Usos dos Solos na microrregião de Caxias - Maranhão – Brasil
Authors: Jansen Ludimila Nathasha da Silva , Farias Filho Marcelino Silva , Campos Milton César Costa
Published: September 2023

R E S U M O
O uso adequado do solo possibilita o desenvolvimento de sistemas produtivos mais estáveis e evita ou minimiza os impactos ambientais negativos. Para que se alcance o melhor uso do solo é necessário conhecer seus atributos, potencialidades e limitações para definição das atividades apropriadas para cada particularidade. A Microrregião de Caxias, localizada ao Leste do Maranhão, apresenta significativa variabilidade de solos. Assim, este trabalho analisou o potencial agrícola dos solos da área de estudo a partir dos dados sobre solos descritos no Zoneamento Econômico do Maranhão (etapa Cerrado) - 2020, totalizando 18 perfis, com objetivo de indicar os tipos de manejos adequados para cada uma das condições ambientais. Para isto, utilizou-se a metodologia de Avaliação de Aptidão Agrícola das Terras - SAAT, definida por fatores limitantes: deficiência de oxigênio, deficiência de fertilidade, deficiência de água, suscetibilidade e impedimentos à mecanização, com adição de parâmetros (disponibilidade de nutrientes, toxicidade por alumínio, fixação de fósforo) propostos por Pereira e Lombardi Neto. Como resultados, verificou-se 47% dos solos da Microrregião de Caxias são indicados para pastagem natural no nível de manejo A, com aptidão Boa para lavouras no nível de manejo C, seguido de aptidão Boa para pastagem regular.
Palavras-chave: Potencial Agrícola. Uso do Solo. Solos de Cerrado.
Aplicação do Modelo HEC-HMS para Simulação do Escoamento Superficial na Bacia Hidrográfica do Rio Vieiras
Authors: BOITRAGO SAMUEL ALVES , LIMA LUIZ FERNANDO ANTUNES , LIMA FELIPE AQUINO , LEITE MARCOS ESDRAS , COSTA LUIZ RICARDO FERNANDES DA
Published: September 2023

O presente estudo teve por objetivo calcular a vazão máxima de descarga no exutório da Bacia Hidrográfica do Rio Vieira, utilizando o modelo Engineering Center‐Hydrologic Modeling System (HEC‐HMS) para simulação do escoamento superficial, considerando os dados físicos da bacia hidrográfica obtidos por meio de Sistema de Informação Geográfica (SIG). A partir da determinação do modelo da bacia, modelo meteorológico e especificações de controle, foi possível simular o escoamento superficial. A aplicação do modelo HEC-HMS com informações obtidas por meio de SIG se mostrou uma importante ferramenta de desenvolvimento de estudos hidrológicos, permitindo ao usuário racionalizar o processo de cálculo. Em períodos centenários, fenômenos meteorológicos críticos podem provocar uma vazão de pico no exutório da bacia hidrográfica do Rio Vieiras da ordem de 1.447,6 m³/s. Por estar inserida no município de Montes Claros e ter seu curso principal percorrendo a zona urbana do município, a bacia requer um manejo ambiental criterioso, principalmente em porção de terra situado a oeste e na zona urbana, a fim de que sejam evitadas enchentes.Palavras-chave: Modelagem hidrológica, Geoprocessamento, Cálculo de vazão, Bacia Hidrográfica, Rio Vieiras.                                                                                                                                 Application of the HEC-HMS model for runoff simulation of Vieiras basin  A B S T R A C TThe objective of the present study was to calculate the maximum discharge flow in the Vieira River Watershed outflow using the Engineering Center-Hydrologic Modeling System (HEC-HMS) model for surface runoff simulation, considering the physical data obtained from the watershed Geographic Information System (GIS). From the determination of the basin model, meteorological model and control specifications, it was possible to simulate the runoff. The application of the HEC-HMS model with information obtained through GIS proved to be an important tool for the development of hydrological studies, allowing the user to rationalize the calculation process. In centuries-old periods, critical meteorological phenomena can cause a peak flow in the Vieiras River basin outflow in the order of 1,447.6 m³/s. Being located in the municipality of Montes Claros and having its main course running through the urban area of the municipality, the basin requires careful environmental management, especially in the western portion of the land and in the urban area, in order to avoid flooding.Keywords: Hydrographic modelling, Geoprocessing, Flow calculation, Hydrographical basin, Vieiras River.
Determinação da Erosão e Transporte de Sedimentos em Bacia Hidrográfica do Sudoeste do Paraná
Authors: Dias Zanella Jean Rafael , Tomazoni Julio Caetano , De Aguiar Wagner
Published: September 2023

A bacia do rio Marrecas está localizada no sudoeste do Paraná. A erosão e os impactos relacionados a mesma ocorrem há muito tempo e tem influenciado de forma significativa o meio ambiente e os seres vivos. Além disso, a erosão além de causar impactos no solo, está relacionada ao transporte de sedimentos o que pode ocasionar o assoreamento e contaminação de corpos hídricos além de prejudicar a qualidade do solo e da água. Nesse contexto, o presente estudo teve como objetivo de determinar a curva-chave de sedimentos a partir de dados obtidos em campo e ferramentas de monitoramento fluviométrico, bem como, estimar a erosão laminar na bacia por meio de ferramentas de geoprocessamento e amostras coletadas em campo. Ao utilizar Equação Universal de Perda de Solo verificou-se a ocorrência de perda de solo na bacia do rio Marrecas. Além disso, foi possível estimar a produção de sedimentos por meio da vazão e concentração de sedimentos no ponto de controle determinado para a área estudo no Rio Marrecas.Palavras-chave: Hidrossedimentologia, Curva-chave de sedimentos, Equação universal de perda de solo, Sólidos em suspensão, Erosão laminar. Determination of Erosion and Sediment Transport in a Hydrographic Basin of Southwest Paraná ABSTRACTThe Marrecas river basin is located in southwestern Paraná. Erosion and its related impacts have been taking place for a long time and have significantly influenced the environment and living beings. Furthermore, erosion, in addition to causing impacts on the soil, is related to the transport of sediments, which can cause siltation and contamination of water bodies, besides to harming the quality of the soil and water. In this context, the present study aimed to determine the key-curve of sediments from data obtained in the field and fluviometric monitoring tools, as well as to estimate the laminar erosion in the basin through geoprocessing tools and samples collected in the field. Using the Universal Soil Loss Equation, it was verified the occurrence of soil loss in the Marrecas river basin. In addition, it was possible to estimate the production of sediments through the flow and concentration of sediments at the control point determined for the study area in the Rio Marrecas.Key words: Hydro-sedimentology, Discharge rating curve, Universal soil loss equation, Suspended solids, Erodibility.
Spatialized Model of Susceptibility to Erosion Risk in a Energy Transmission Line in the Cerrado Biome
Authors: Cucco Dalri Julia , Oliveira Francisco Henrique de , Bertol Ildegardis , Suarez Fernandez Hypólito , Gerente Jéssica , Gomes Junior Francisco Caruso , Providelo Lucas Antônio , Marchiori Guilherme
Published: September 2023

The installation of Transmission Lines (TL) provokes disturbances in the environment, which reacts in different ways. The suppression of vegetation, even when limited to what is necessary for the execution of the project, may cause erosive processes. Spatialized inputs have made the monitoring of large portions of land viable. Data from the GPM (Global Precipitation Measurement) constellation allows access to rainfall data even in areas which do not have pluviometric stations. Also by satellite, the landscape can be represented with SRTM (Shuttle Radar Topography Mission) images. Similarly, maps of soil erodibility and land use, necessary together so that the diagnostics methodology on the risk of erosion can be obtained. Therefore, a logic is methodologically developed in which freely obtained input data follow a conceptual model, which defines the variables and their relationships in the potential issue’s context, while having replication accessibility in mind. Of the 43 gaps present in the pilot tracing located in Minas Gerais, Brazil, four of them received the “likely” risk of erosion classification in a period without record of any meaningful rainfall. The methodology mirrors an evaluation which increases the risk as long as the rains occur.
Spatial analysis of the soil erosion in the hydrographic basin of Formoso River: subsidy to politics of land use and environmental preservation in a region of Brazilian Cerrado
Authors: Pereira Maria Antonia Balbino , Alves Wellmo dos Santos , Castro Raysa Moraes , Morais Wilker Alves , Pôssa Évelyn Marcia
Published: September 2023

The erosion of the soil is one of the most worrisome environmental problems of the planet, which causes negative impacts as fertility loss of lands and water bodies pollution. The objective of this paper was to analyze the soil erosion in the hydrographic basin of Formoso River, located in the state of Goiás, Brazilian Cerrado. Most part of the hydrographic basin area belongs to the Emas National Park Conservation Unit. To estimate the soil loss from surface erosion, remote sensing products were used, geoprocessing tools and the Universal Soil Loss Equation (USLE). The annual erosion values in the basin varied from 0 t ha-1 year-1 to 8315 t ha-1 year-1, with 85.88% of the total area for soil losses classified in the slight category. The highest soil losses are associated with high results for R, K and LS factors in agricultural use, which represents 29.12% of the total area, with losses of 97.78% of soil from real erosion, in soils classified dystrophic Red Latosol, medium texture and high topographic values areas. The agricultural areas and the analysis of the real erosion reassures the necessity of proper planning, considering correct management techniques, in order to it won’t compromise the water resource. This study could subsidize the planning and management of the referred hydrographic basin and this important preservation area of the Cerrado.Keywords: Geoprocessing; Remote sensing; Cerrado; USLE; Emas National Park. Análise espacial da erosão do solo na bacia hidrográfica do Rio Formoso: subsídio à política de uso do solo e preservação ambiental em uma região do cerrado brasileiro R E S U M OA erosão do solo é um dos problemas ambientais mais preocupantes do planeta, que causa impactos negativos, como perda de fertilidade das terras e poluição dos corpos d'água. O objetivo deste trabalho foi analisar a erosão do solo na bacia hidrográfica do Rio Formoso, localizado no estado de Goiás, Cerrado brasileiro. A maior parte da área da bacia hidrográfica pertence à Unidade de Conservação do Parque Nacional das Emas. Para estimar a perda de solo por erosão superficial, foram utilizados produtos de sensoriamento remoto, ferramentas de geoprocessamento e a Equação Universal de Perda de Solo (USLE). Os valores de erosão anual na bacia variaram de 0 t ha-1 ano-1 a 8315 t ha-1 ano-1, com 85,88% da área total para perdas de solo classificadas na categoria leve. As maiores perdas de solo estão associadas a resultados elevados para os fatores R, K e LS no uso agrícola, que representa 29,12% da área total, com perdas de 97,78% de solo por erosão real. As áreas agrícolas e a análise da erosão real reafirmam a necessidade de planejamento adequado, considerando técnicas de manejo corretas.Palavras-chave: Geoprocessamento. Sensoriamento remoto. Cerrado. USLE. Parque Nacional das Emas.
Análise de eficiência de filtração de água por múltiplas etapas vs múltiplas camadas com biomassa de moringa oleífera e bucha vegetal
Authors: Santos Luam de Oliveira , Sousa Inajá Francisco de , Silva Gabriel Francisco da , Barbosa Silvanito Alves , Caetano Nídia de Sá
Published: September 2023

O uso da Moringa oleífera (MO) apresenta-se como boa alternativa de agente coagulante, indicada no sistema de tratamento de água, no seu processo de clarificação, sendo biodegradável, dessa forma justifica-se o estudo do seu uso como tecnologia social a ser utilizada por populações ribeirinhas para tratamento da água de forma simples e eficaz.  Um sistema de tratamento de água utilizando coagulação com semente de MO e filtração em múltiplas etapas com biomassa de MO e bucha vegetal é eficaz no tratamento da água de barreiro trincheira para uso e consumo humano.  O objetivo desta pesquisa a construção e avaliação das eficiências de sistemas de tratamento de água por filtração em múltiplas etapas (FIME) e de sistemas de filtração em múltiplas camadas (FMC), ambas utilizando as biomassas de MO e a bucha vegetal, utilizados como tecnologia social de tratamento de água do barreiro trincheira pela comunidade. O estudo foi realizado em parceria da UFS com o IFS onde foram analisados parâmetros da água bruta assim como da água após os tratamentos. Os parâmetros analisados foram, pH, cor aparente, turbidez, dureza total, dureza de cálcio, dureza de magnésio, cloretos, sódio, lítio e potássio, além das análises microbiológicas de coliformes totais e Escherichia coli. Nos resultados encontrados podemos perceber grandes vantagens na utilização do sistema FIME em relação ao sistema FMC, obtendo-se redução de até 96,91% da turbidez e 98,19% na cor aparente, entre a água bruta e a água após os tratamentos propostos, além deste ser indicado para tratamento domiciliar ou até mesmo comunitário com vazão de operação de até 150 litros por hora.