bluuebunny/crossref_metadata_2025 huggingface dataset:
БУДУЋНОСТ И НЕПРОЗИРНОСТ – ПОВЕСНИ АСПЕКТИ ОЧИТОВАЊА КРИЗЕ КАО КВАЗИИМПЕРАТИВА ЗА САВРЕМЕНОГ ЧОВЕКА
Authors: МИЛОВИЋ НАТАША С.
Published: April 2024

У овом раду испитујемо и драматизујемо повесне аспекте очитовања кризе код савременог човека. Настојимо да опишемо како се повесни аспекти кризе пројављују у виду искусивања фактичности стварности – како такво искусивање зачиње својеврсно питање о идентитету, доприноси преиначењу статуса стварног, намеће другачију динамику односа стварности и субјекта. Расветљавамо на који начин такво преиначење са собом повлачи другачије поимање улоге онога што је код човека и у стварности непрозирно, како раскрива спрегнутост између телесно-афективног и духовно-рефлексивног дела човековог бића и његову улогу за субјект који мисли, тумачи, дела, спознаје. Овакво испитивање повесних аспеката очитовања кризе код савременог човека има за циљ да укаже на то: како и зашто начини „ношења“ са њим, који се препознају као стратегије неодговарања на такво повесно искуство, доприносе људском самопоробљавању и типовима ресантимана које настојимо да идентификујемо –  односно како је с обзиром на овакво повесно искуство изводиво другачије постављање према себи и стварности – тј. како је у новонасталим повесним околностима изводиво одговарање на њега. Истиче се да је разматрање односа према таквој повесној ситуацији од значаја додатно због тога што њено пренебрегавање све више подупире одрицање човека од оних аспеката његовог бића за које се показује да су од пресудног значаја за људску будућност.
Democracia radical
Authors: Sánchez Santiago Alfredo
Published: April 2024

El objetivo de este trabajo es distinguir la democracia radical de otras corrientes de la teoría democrática contemporánea y pasar revista a algunos de los autores y planteamientos que han dado cuerpo a esta noción en la filosofía política de las últimas décadas. En la primera parte, sitúo la noción de democracia radical en el contexto de las luchas contrahegemónicas que se suceden en distintas geografías tras la crisis financiera de 2008 y evalúo nuestra distancia actual con respecto a aquel periodo de efervescencia política. A continuación, trazo una breve historia conceptual de la democracia radical desde los años 1960 hasta la década de 1990 y defiendo la necesidad de inscribir la democracia radical en el linaje de la revolución democrática moderna. Propongo, por último, tres rasgos muy básicos para articular una definición mínima del concepto. Concluyo señalando algunas contradicciones que enfrenta el proyecto de radicalización de la democracia en la segunda década del siglo XXI.
La medicina medieval de la economía ortodoxa contra la inflación
Authors: Galbraith James K.
Published: April 2024

Si se tiene en cuenta que la tasa de inflación de los Estados Unidos alcanzó su punto máximo en junio de 2022, no hay evidencia de que la política monetaria haya tenido algún efecto significativo sobre la dirección que tomaron los precios. Sin embargo, al igual que los médicos premodernos comprometidos con la antigua teoría humoral de la enfermedad, los economistas ortodoxos de hoy han demostrado que carecen de las herramientas para curar al paciente.
Historia económica del peso mexicano. Del mercado global a la gestión política de la moneda, coordinado por Antonio Ibarra y Bernd Hausberger
Authors: Borja Gómez Galia
Published: April 2024

Reseña de Antonio Ibarra y Bernd Hausberger (coords.) (2023). Historia económica del peso mexicano. Del mercado global a la gestión política de la moneda. México: El Colegio de México.
Macrocycle-based covalent-organic-polymer as efficient oxygen electrocatalysts for zinc-air flow batteries
Authors: Leng Yiming , Chen Tengge , Yin Yuanyuan , Li Jizhen , Li Xueli , Xiang Zhonghua
Published: April 2024

Covalent organic polymers (COPs), as emerging porous materials with well-defined architectures and high hydrothermal stability, have attracted extensive attention in the field of electrocatalysis. Herein, we report a rational design method for preparing oxygen reduction reaction electrocatalysts with the assistance of a predesigned macrocyclic COP model molecular. With the predesigned nitrogen position and structural features in macrocyclic chain-like COP-based materials, the obtained COPMCT-Co-900 catalyst provided excellent oxygen reduction performance, where the half-wave potential (E1/2) reaches 0.85 V (vs . RHE), comparable to commercial Pt/C. We also extended the strategy to similar macrocycle COPs and Fe-based and Ni-based metal sources and studied the oxygen reduction reaction performance of corresponding catalysts, proving the universality of the method. Interestingly, we assemble COPMCT-Co-900 catalyst as air electrode catalyst of the self-made rechargeable zinc-air flow batteries, which exhibit outstanding power density (155.6 mW·cm-2) and long cycle life (90 h, 270 cycles at 10 mA·cm-2). Our studies provide a new method for the development of high-performance oxygen electrodes applied in zinc-air flow battery devices.
Construction of piezoelectric photocatalyst Au/BiVO4 for efficient degradation of tetracycline and studied at single-particle level
Authors: Zhang Yujia , Liu Yan , Gong Xueqin , Wang Zeyan , Liu Yuanyuan , Wang Peng , Cheng Hefeng , Huang Baibiao , Zheng Zhaoke
Published: April 2024

Piezopotential-assisted catalysis has been proven to be a low-cost and high-efficiency environmental purification process. Herein, Au/bismuth vanadate (BiVO4) piezoelectric photocatalysts are prepared by modifying highly dispersed Au nanoparticles (AuNPs) on piezoelectric BiVO4 microcrystal by a deposition-precipitation approach. Under visible light irradiation and assisted ultrasound excitation, the removal rate of tetracycline was 95% within 60 min, demonstrating the optimum photocatalytic performance over 3Au/BiVO4. The significantly enhanced photocatalytic performance is due to the synergistic coupling of plasmonic and piezotronic effect based on facet engineering. Single-particle spectroscopy technology can provide photoluminescence (PL) lifetime and PL spectra information in the micro-/nano regions, thereby exploring the charge transfer behavior of heterostructures. Single-particle PL images revealed a significant attenuation of PL emission and shortened PL lifetime of 3Au/BiVO4, compared with BiVO4, indicating that high-density dispersed AuNPs promote charge transfer. In situ monitoring of individual BiVO4 and 3Au/BiVO4 particles before and after polarization treatment confirms that the piezoelectric field of the BiVO4 decahedron further promotes separation of photogenerated carriers induced by plasmonic effect. Driven by the piezoelectric potential induced by ultrasonic vibration near the heterostructures, high-energy hot electrons excited on plasmonic AuNPs can be effectively extracted to BiVO4. This work provides new choices for designing high-performance pollutant treatment catalysts.
NiFe Prussian blue analog cocatalyzed TiO2/In2S3 type-II heterojunction for solar water splitting
Authors: Zhang Ming , Yang Pingping , Tao Wenyan , Pang Xiangui , Su Youyi , Peng Pai , Zheng Lin , Li Runhan , Wang Shuxiang , Huang Jing , Zou Li , Xie Jiale
Published: April 2024

Due to the excellent stability of titanium dioxide (TiO2), there is still value in improving its solar-to-hydrogen conversion efficiency through tremendous attempts. Metal sulfides with a narrow bandgap are good candidates to broaden the ultraviolet light absorption of TiO2 into the visible light region. However, sulfides suffer from the photocorrosion issue, leading to poor stability. Herein, a type-II heterojunction of TiO2/In2S3 is fabricated by a hydrothermal method, and a NiFe Prussian blue analog (NFP) overlayer is deposited on the surface of TiO2/In2S3 through a chemical bath deposition technique. Under AM1.5G illumination, a photocurrent density of 1.81 mA cm-2 can be obtained with NFP coated TiO2/In2S3 at 1.23 V vs. reversible hydrogen electrode, which is six folds of the photocurrent of TiO2. This photocurrent value can reach up to about 90% of its theoretical photocurrent. During a 12 h stability test, the TiO2/In2S3/NFP photoanode exhibits a high photocurrent retention of 95.17% after an initial transient decrease. The type-II heterojunction of TiO2/In2S3 can efficiently boost the charge separation because of the built-in electric field and enhance the visible-light absorption because of the narrow bandgap of In2S3. A NFP overlayer serves as the cocatalyst for water oxidation reaction due to its valence changes of nickel and iron elements. NFP cocatalyst can rapidly extract the photogenerated holes from In2S3 and then improve the charge separation/injection efficiencies. Thanks to chemical stability of NFP, its coating can also make In2S3 resistant to photocorrosion by physically separating the photoanode from the electrolyte. Therefore, there is a good synergistic effect between the TiO2/In2S3 heterojunction and NFP cocatalyst. This work provides some crucial insights for the interface engineering and material design in photoelectrochemical systems.
Evaluating the effectiveness of local economic development strategies within UMhlathuze Local Municipality
Authors: Xaba Mzwandile Refuge , Nokukhanya Jili  , Mandisi Matyana
Published: April 2024

Local Economic Development strategies were formulated in response to the stipulations made by the national government of South Africa. The national mandate placed the responsibility on the local sphere of government to promote economic progression from a grassroots level and to contribute to developmental activities within the state. The National Framework LED has been created as a basis for the effective practice of LED in terms of implementation. This paper focused mainly on evaluating the effectiveness of Local Economic Development strategies in uMhlathuze Local Municipality within Empangeni town. This paper and its problem were developed by the researcher due to the growing unemployment rate in South Africa which mostly affects young people, more especially at the municipal level. The researcher was convinced to evaluate how the economic development strategies or initiatives addressing the issue of unemployment and assisting economic development within the uMhlathuze Local Municipality, intending to come up with mechanisms that may be put at hand to ensure the effectiveness of these strategies provided to address economic issues with the municipality. This paper employed qualitative methods to collect and analyze data. Qualitative data were collected from community members and staff of the municipality within the Department of Economic Development through the use of questionnaires. The analysis of qualitative data was done through thematic analysis. The findings of the research revealed that there is a communication breakdown between the community and the municipality to enable the community to use the opportunities for economic development. This paper recommends that the municipality needs to develop/advance communication methods to ensure that the community is informed and aware of the development opportunities that are provided by the community.
Theorized model for e-procurement system in developing countries
Authors: Shatta Deus , Mabina Bahati
Published: April 2024

The adoption of e-procurement systems in developing countries is progressing slowly due to several challenges and barriers. Likewise, the adoption of e-procurement systems has been extensively studied, with research focusing on direct effects of factors like transparency and compatibility. This research aimed to evaluate the direct and indirect effects of relative advantage and performance expectancy on the adoption of e-procurement systems by combining components from the Technology, Organization, and Environment model with a modified Unified Theory of Acceptance and Use of Technology. This was accomplished by analyzing the function of attitude as a mediator and the legal framework as a moderator in the suggested study model. This study used a cross-sectional survey research design, together with a stratified sampling technique, to acquire a sample size of 367 respondents. The data were acquired via the distribution of questionnaires and the examination of relevant documents. The collected data underwent descriptive analysis using IBM SPSS statistics version 26, and inferential analysis was performed using PLS-SEM with the assistance of SmartPLS 4 software. The study's results validate a significant statistical moderating impact of the legal framework on the relationship between performance expectancy and attitude towards adoption of e-procurement system. On the other hand, adoption of e-procurement system is impacted by performance expectancy and relative advantage, which have both direct and indirect significances. Attitudes have a direct impact on the adoption of e-procurement system. This study proposes that future research should include respondents from several countries to improve the applicability of the suggested model.
Service quality facets and hotel customer retention in Ghana: Evidence from the Volta Region
Authors: Adzinyo Otilia , Dzansi Dennis Yao , Strydom Albertus Johannes
Published: April 2024

Service quality and customer retention remain essential issues in the service sector. This research delves into unravelling the complex relationships between the facets of the SERVQUAL model (reliability, responsiveness, tangibility, assurance, and empathy) and the retention of hotel customers in less-urban areas of Ghana. A cross-sectional survey of 450 customers of hotels in the Volta Region produced data for descriptive and regression analyses using Smart PLS 4. The results show that service quality was rated moderately, only assurance and empathy significantly affect customer retention, while tangibility, reliability, and responsiveness do not. Generalizability of our findings to other regions of Ghana and elsewhere might be questioned because the study was limited to only one region. However, this seeming limitation provides novelty and value in several ways. Firstly, while SERVQUAL is widely used, its application to less-urban geographical areas like the Volta Region is uncommon. Moreover, the study provides a deeper understanding of how service quality affects customer retention by focusing on a specific, narrow regional area. Further, by differing from the usual broader hospitality research, this distinctive approach offers valuable insights into local customers' unique preferences and behaviours that larger-scale studies may overlook.
Readability level of prescribed Accounting textbooks used in South African secondary schools
Authors: Ndovela Sithembele Goodman
Published: April 2024

The results of a study that investigated the readability of three Accounting textbooks used in South African secondary schools are presented. In South African schools, textbooks remain the primary source of course content that drives the students’ learning of the subject matter. The study followed the traditions of the positivist paradigm. The Flesch reading ease score and Gunning fog index are readability measurement methods that are helpful in measuring the difficulty or challenging nature of text in the Accounting textbooks. Using them assists teachers of Accounting who have the responsibility to choose textbooks that would assist their students to make meaning of the subject matter. Three sections from each textbook were analysed: an introduction section on budgeting, analysis and interpretation section, and section on General Accepted Accounting Principles. These topics are very important in understanding the discipline of Accounting; their readability or accessibility by students play a crucial role in learning the subject of Accounting. The results showed that some textbooks are not readable, or are not straightforward and user friendly, and are thus difficult to understand and engage with. This points to these textbooks being challenging to some Accounting students, especially since to some English is their second language. The recommendations for future research are discussed. It is suggested that authors of Accounting textbooks must consider the readability of the textbooks.
Linking monitoring and evaluation to performance management in the South African public service
Authors: Mahlala Sandiso
Published: April 2024

The main focus of the article is the necessity of using M&E as a catalyst and accelerator for increased public service efficacy. The South African government has been under tremendous pressure lately to meet the needs of its people in terms of development. This needs to be carried out in a transparent and citizen-focused way. The purpose of this article is to provide a strong link between performance management and M&E, two enablers that are now essential to the success of public service delivery in the twenty-first century, in light of the requirement to guarantee that M&E enhances such service delivery to the public. Additionally, the corrupt existing condition of affairs belies our understanding of the amount to which programmes have the intended effects and the degree to which they may continue to supply services over time.  A diverse look at the meaning of M & E will be offered in this presentation. This is a conceptual study based on an examination of the literature from many sources, such as academic publications, popular media pronouncements, and policies.
School culture as barometer of learners’ success: case study of Eastern Cape selected schools
Authors: Mkhomi Moses Sipho , Mzokwana Nondwe Nomnikelo
Published: April 2024

The South African government attaches high priority on education hence a bigger share of the country’s budget is allocated to education. Literature presents a growing concern that South African public schools are not performing well with a number of contributing factors for learner poor performance. However, despite poor learner performance in some schools, there remain a number of schools who continuously produce pleasing results. It against this background that this paper sought to determine whether school culture has a contribution to Grade12 learners’ academic performance in selected secondary schools in the Eastern Cape Province. This paper used the Social Interactionist Theory (Mead, 1934) as it lenses, which seeks to understand events and circumstances around us and influence behaviour. This paper is located in the interpretivist paradigm and employed qualitative approach to gain experiences and opinions of participants on the influence of school culture 5 schools were sampled with 40 participants who responded through semi-structured interviews. Among the findings that emerged from the study was the critical participation of the stakeholders in school programmes, the vision and mission of the school to ensure learner success and maintenance of proud legacy of the school.  The paper therefore, recommends cascading focus to the lower grades to continuously sustain school culture that enhances good learner performance.
PERSEPSI WISATAWAN TERHADAP FASILITAS WISATA ALAM PULAU MENGKUDU
Authors: Kartini Putri Dwi Mei , Wulandari Christine , Kaskoyo Hari , Abidin Zainal , Hariyanto Sugeng P. , Muniarti Ketut
Published: April 2024

Provinsi Lampung menawarkan objek wisata pantai yang berada di Kecamatan Bakauheni, Kabupaten Lampung Selatan yaitu Pulau Mengkudu yang dikelola oleh Kelompok Sadar Wiata Ragom (POKDARWIS) Helau sebagai dasar pengembangan suatu lokasi wisata perlu dilakukan penelitian tentang persepsi wisatawan terhadap fasilitas yang ada. Pengelolaan akan dikatakan baik apabila tetap menjaga tata nilai asli tempat wisata ketika mengembangkan berbagai fasilitasnya seperti akomodasi, produk jasa yang diharapkan, berdampak positif bagi masyarakat sekitar kawasan. Penelitian dilakukan pada bulan Maret 2022 dengan menggunakan metode uji validitas dan reabilitas kemudian diolah berdasarkan skala likert. Hasil penelitian didapatkan persepsi wisatawan dengan tertinggi kategori “Baik” yaitu pada kondisi air bersih dan toilet yaitu 3,75, kemudian wahana permainan yaitu 3,66 dan keindahan alam yaitu 3,55. Persepsi wisatawan tentang akses menuju Pulau Mengkudu mempunyai skor rendah yaitu 3,11, restaurant dengan skor 3,02 dan alat transportasi menuju Pulau Mengkudu dengan skor 3,07. Sehingga ketiganya perlu segera ada upaya renovasi.
PREDIKSI LUAS VEGETASI KOTA SAMARINDA-KALIMANTAN TIMUR MENGGUNAKAN METODE NDVI DAN KLASIFIKASI TERBIMBING
Authors: Agus Fahrul , Jatiwibowo R. , Kamil Z. A. , Gifari O. I.
Published: April 2024

Perkembangan teknologi penginderaan jauh dan Sistem Informasi Geografis yang sangat pesat saat ini memberikan manfaat yang besar pada pengelolaan lahan perkotaan. Sebagai Ibu Kota Provinsi Kalimantan Timur dan daerah penyangga Ibu Kota Nusantara, Kota Samarinda mengalami permasalahan pada pengelolaan lahan akibat pertumbuhan dan pembangunan kota. Kegiatan pembangunan dan eksplorasi bumi mengakibatkan lahan vegetasi mengalami deforestasi dan konversi yang berdampak pada isu kelestarian lingkungan. Metode klasik dan umum digunakan untuk menghitung kerapatan vegetasi adalah Normalize Difference Vegetation Index (NDVI). Namun dengan perkembangan ilmu pengetahuan yang pesat, luas vegetasi lahan dapat diprediksi menggunakan metode klasifikasi terbimbing dengan berbagai algoritma. Salah satu algoritma yang handal dalam pengolahan citra berbasis piksel adalah algoritma Maximum Likelihood. Penelitian ini bertujuan untuk mendeteksi luas vegetasi Lahan Kota Samarinda menggunakan Metode NDVI dan Klasifikasi Terbimbing Algoritma Maximum Likelihood pada citra satelit Landsat 8 sensor Operational Land Imager (OLI). Data spasial yang digunakan pada penelitian ini berupa citra multispectral/multiband satelit Landsat 8 dari United State Geological Survey (USGS) Earth Explorer akuisisi 31 Oktober 2022. Alur kerja penelitian terdiri dari tahapan antara lain: identifikasi masalah, pengumpulan pustaka, pengumpulan data citra, pra-proses data, analisis dan interpretasi. Analisis menggunakan Metode NDVI menunjukkan bahwa besaran indeks vegetasi kategori sangat rendah, rendah, sedang dan tinggi berkisar antara -0,0115 s.d. 0,2494. Sedangkan analisis dengan algoritma Maximum Likelihood menunjukan bahwa persentase luas vegetasi Kota Samarinda sebesar 74,57% atau dengan luas 53.580 Ha. Hasil tersebut memberikan gambaran bahwa Kota Samarinda masih didominasi oleh lahan bervegetasi namun dengan tingkat kerapatan yang rendah.
PERTUMBUHAN SENGON (Paraseranthies falcataria) DI LEMBAH DAN DI BUKIT
Authors: De Araújo Natalino , Alves R.,
Published: April 2024

Tujuan penelitian ini adalah untuk mengetahui perbedaan dimensi pertumbuhan pohon P. falcataria (diameter dan tinggi pohon) serta menghitung tingkat kelangsungan hidup pada dua wilayah berbeda (lembah dan perbukitan). Objek penelitian adalah pohon P. falcataria pada kelas umur yang sama (11 tahun), ditanam pada tahun 1995/1996. Kedua areal tersebut masing-masing memiliki luas 3 hektar, dan dari masing-masing areal tersebut diambil 330 pohon sebagai sampel dengan menggunakan metode purposive. Hasil penelitian dianalisis dalam bentuk tabel. Selain itu, uji t juga dilakukan untuk mengetahui perbedaan nyata atau tidak nyata antara pohon-pohon di kedua daerah tersebut.Tinggi sengon yang paling banyak ditemukan di lembah adalah 20 - 21 m mencapai 32,72% dengan rata-rata tinggi per tiang 20,37 m dan rata-rata tinggi cabang bebas 9,98 m. Sedangkan ketinggian P. falcataria di atas bukit hanya 18 – 19 m; bisa mencapai 50,90%. Rata-rata tinggi cabang bebas 18,61 m dan rata-rata tinggi cabang bebas 7,83 m per batang. Hasil Uji t menunjukkan adanya perbedaan yang nyata, dimana nilai t-hitung terbesar terdapat pada dimensi tinggi cabang bebas yaitu sebesar 15,896 dan (standard error) Se 0,135, sedangkan nilai t-tabel sebesar 1,960 pada standar akuntabel sebesar 5% dan nilai derajat bebas (fd) sebesar 658. Standar error terbesar terdapat pada dimensi diameter sebesar 0,263 dan standar error terkecil terdapat pada dimensi tinggi total sebesar 0,092 dengan rata-rata terbesar selisih nilai hasil pengukuran terdapat pada dimensi diameter sebesar 6,82 cm. Selanjutnya tingkat kelangsungan hidup dan pertumbuhan dimensi sengon sebenarnya dapat ditingkatkan hingga mencapai ukuran pertumbuhan maksimum namun hal tersebut tergantung pada pemilihan tempat tumbuh yang tepat, cara penyiapan lahan yang baik, pembangunan dan budidaya yang intensif.
POTENSI PENYERAPAN KARBON DAN PEMANTAUAN KESEHATAN POHON Eucalyptus pellita DI UNIVERSITAS LANCANG KUNING, PEKANBARU, RIAU
Authors: Prastyaningsih Sri Rahayu , Suwarno Eno , Sadjati Emy
Published: April 2024

Peranan pohon sangat penting untuk menjaga kualitas lingkungan dalam kampus sebagai penghasil O2 dan menyerap CO2. jumlah karbon yang disimpan dalam pohon berbanding lurus dengan volume kayu dan biomassa pohon yang dihasilkan. Salah satu faktor penting yang mempengaruhi tinggi rendahnya volume kayu dan biomassa pohon adalah kondisi kesehatan pohon. Penelitian ini bertujuan untuk mengetahui jumlah volume kayu (m3), potensi karbon (ton) dan serapan CO2 (ton) yang dihasilkan tegakan Eucalyptus pellita dan kondisi kesehatannya. Penelitian ini dilakukan di 5 (lima) lokasi di Universitas Lancang Kuning, Pekanbaru, Riau yaitu di Fakultas Ilmu Komputer, Fakultas Kehutanan, Fakultas Teknik, sekitar Lapangan Bola dan Danau/Ekoriparian. Penelitian ini dilakukan dengan metode survey pada seluruh pohon E.pellita. Hasil penelitian menunjukkan bahwa total volume kayu yang dihasilkan sebesar 274,19 m3 yang tersebar di Fakultas Ilmu Komputer (50,64 m3), Fakultas Kehutanan (70,41 m3), Fakultas Teknik (9,51 m3), sekitar Lapangan Bola (106,37 m3) dan Danau/Ekoriparian (37,25 m3). Biomassa tersimpan sebesar 260.408,33 kg sd 270.959,85 kg dengan kandungan karbon tersimpan sebesar 122.391,92-ton sd 127.351,13-ton dan serapan CO2 sebesar 954,83-ton sd 993,52-ton. Hasil pemantauan kesehatan pohon, dari 451 pohon E. pellita terdapat 14 batang pohon yang mengalami kerusakan. Pohon dengan pertumbuhan kurang sebanyak 7 batang, kerusakan akibat hama penyakit 5 batang dan kerusakan fisik mekanik sebanyak 2 batang sehingga jumlah pohon rusak adalah 14 batang (3,1%).
ANALISIS KOMPOSISI DAN STRUKTUR VEGETASI TERHADAP UPAYA RESTORASI TAMAN WISATA ALAM PULAU SUWANGI DI KABUPATEN TANAH BUMBU
Authors: Suparni Suparni , Kadir Syarifuddin , Jauhari Ahmad
Published: April 2024

Penelitian ini bertujuan untuk untuk menganalisis komposisi dan struktur vegetasi di kawasan hutan TWA Pulau Suwangi pada berbagai tipe hutan. Penelitian dilaksanakan dengan melakukan kegaitan analisis vegetasi melalui metode jalur berpetak pada tipe hutan mangrove, hutan dataran rendah dan hutan pantai di TWA Pulau Suwangi. Hasil penelitian menunjukkan pada tipe hutan mangrove, jenis R. mucronata merupakan jenis yang mendominasi pada tingkat semai (INP 87,77%) dan pancang (INP 108,43%), sedangkan tingkat pertumbuhan pohon didominasi oleh Bruguiera gymnorrhiza (INP 87,37%). Vegetasi mangrove yang mendominasi adalah bakau (Rhizophora mucronata dan Rhizophora apiculata) jenis ini dapat dijadikan rekomdendasi jenis yang ditanam pada kegiatan pemulihan ekosistem. Pada tipe hutan dataran rendah vegetasi pada tingkat pohon didominansi oleh jenis Litsea sp. (INP 36,13%) disusul oleh Syzygium lineatum (INP 34,86%), sementara untuk tingkat tiang, pancang dan semai didominasi oleh S. lineatum (INP 44,72%, INP 57,86% dan INP 59,39%).
ANALISIS KERUSAKAN POHON DI RESTORASI RAWA KIDANG TAMAN NASIONAL WAY KAMBAS
Authors: Ananda Vio Deka , Safe'i Rahmat , Winarno Gunardi Djoko , Hilmato Rudi
Published: April 2024

Kualitas kesehatan hutan dapat mempengaruhi fungsi hutan. Kualitas kesehatan hutan dapat dianalisis melalui pendekatan penilaian indikator kerusakan pohon. Tujuan penelitian ini adalah untuk menentukan nilai kesehatan pohon berdasarkan indikator vitalitas, yaitu kerusakan pohon di Restorasi Rawa Kidang. Pengumpulan data dilakukan dengan beberapa tahapan yang dimulai dengan observasi lapangan, pembuatan klaster plot sesuai dengan desain metode Forest Health Monitoring, pengukuran Kesehatan pohon dan penilaian Kesehatan pohon. Identifikasi kerusakan ditentukan berdasarkan lokasi, tipe, dan tingkat keparahan kerusakan. Kerusakan pohon dianalisis berdasarkan indeks kerusakan tiap pohon (TLI), pengukuran kerusakan tingkat plot (PLI), dan kemudian mengukur kerusakan berdasarkan klaster plot. Hasil analisis kerusakan pohon didasarkan pada lokasi kerusakan, yaitu daun, cabang, pucuk, dan tunas. Tipe kerusakan pohon yaitu daun, pucuk atau tunas rusak (24), cabang patah atau mati (22), hilangnya pucuk dominan (21), dan luka terbuka (03). Nilai klaster plot 1 yaitu 3,17, klaster plot 2 dan 3 yaitu 2,64 dan 2,23, serta klaster plot 3 yaitu 1,41. Klaster plot 1 dan 2 mendapat kategori tinggi (2,60-3,18), klaster plot 3 kategori sedang (2,01-2,59), dan klaster plot 4 kategori rendah (1,42-2,00). Kategori kerusakan yang didapatkan cukup bervariatif yang berdampak pada terbentuknya dinamika kesehatan di Restorasi Rawa Kidang.
The Effect of Exposure to Social Media Instagram @Narasinewsroom Regarding Online Fraud on Students' Vigilant Attitude
Authors: Khairunnisa Mutia , Putri KYS , Safitri Dini
Published: April 2024

Online fraud continues to haunt internet users, especially WhatsApp as a messenger media which is the main medium for communication. The motive is now to spread messages such as couriers, wedding invitations, or bill payments by sending .apk format to break into the victim's account. This became a concern and was reported by Instagram @narasinewsroom. Uploaded news can form a wary attitude among readers. The aim of this research is to determine the influence of exposure to the social media Instagram @narasinewsroom regarding online fraud on students' alert attitudes. The paradigm used is positivism with a quantitative approach. The sample used consisted of 100 Communication Science students at Jakarta State University and used a simple random sampling technique. The results of this research show that there is an influence between exposure to social media Instagram @narasinewsroom regarding online fraud on students' alert attitudes with a weak correlation, namely 13%.
The Influence of JOMO and Authenticating News Before Sharing on Fake News Sharing Behavior
Authors: Al-Aufar Aliva Brilliant
Published: April 2024

Easy access to the internet provides many conveniences for its users. Thanks to the convenience provided, information can spread quickly and widely. However, for every advantage there are disadvantages. The easy dissemination of this information can also have negative impacts, one of which is the spread of fake news. Currently, fake news is very easy to find, especially in online media. This research is based on behavioral reasoning theory, which discusses the reasons behind individual behavior and intentions. The purpose of this theory is to find out the factors that influence the spread of fake news. In this research, there are 2 factors studied, JOMO and authenticating news before sharing through perceived believability. By distributing questionnaires to students and analyzed using SmartPLS, it can be concluded that JOMO and authenticating news before sharing have a negative effect on fake news-sharing intentions either through mediation or directly. The results show that individuals will not have the intention to spread fake news even though the person believes that the source of the information they receive is credible. Based on this research, individuals tend to check the veracity of the news they receive before sharing it to avoid fake news-sharing behavior. Apart from that, there are also some individuals who feel happier and more relaxed when they are not connected to information that is being widely reported, this is their reason not to engage in fake news-sharing.
Pengelompokan Kecamatan di Kabupaten Sleman Berdasarkan Jenis Disabilitasnya Tahun 2022 Menggunakan K-Means Clustering
Authors: Mulia Hidayahti Rate Mulia Hidayahti , Edy Widodo
Published: April 2024

Penyandang disabilitas masih jarang diberikan ruang yang cukup dalam masyarakat. Masyarakat sering kali mengabaikan dan meremehkan keberadaan mereka. Mereka sering dipandang sebagai kelompok yang lemah dan hanya perlu dikasihani karena keterbatasannya. Hak- hak mereka sebagai manusia sering terabaikan, seperti hak untuk hidup, hak atas pendidikan dan kesehatan, dan hak untuk mengakses layanan publik. Peneliti ingin meneliti jenis disabilitas menurut Kecamatan yang ada di Kabupaten Sleman dengan variabel yang digunakan yaitu tuna netra, bisu tuli, cacat tubuh, mental retardasi, penyakit kronis, dan cacat ganda. Tujuan dari penelitian ini adalah melakukan pengelompokan Kecamatan di Kabupaten Sleman berdasarkan jenis disabilitas dengan harapan mempermudah Badan Perencanaan Pembangunan Daerah (BAPPEDA) Kabupaten Sleman dalam pengelompokan dan dapat  mempermudah kegiatan dalam memenuhi hak-hak penyandang disabilitas di Kabupaten Sleman. Pengelompokan yang dilakukan guna untuk mengetahui karakteristik tiap-tiap cluster dengan melihat rata-rata dari masing-masing jenis disabilitas per Kecamatan yang ada di Kabupaten Sleman pada tahun 2022 disetiap clusternya. Penelitian ini menggunakan metode k-means clustering dan diperoleh hasil yaitu terdapat 3 Kecamatan pada cluster 1, 5 Kecamatan pada cluster 2, dan 9 Kecamatan pada cluster 3.
Perbandingan Dampak Bencana Angin Kencang Tahun 2020 Dan 2021 Daerah Istimewa Yogyakarta Berdasarkan Metode K-means Clustering
Authors: Nanda Khofifah Thalia , Fajriyah Rohmatul
Published: April 2024

Penelitian ini bertujuan untuk mengkalsifikasikan kecamatan-kecamatan yang terdapat di Daerah Istimewa Yogyakarta berdasarkan data jumlah kejadian angin kencang beserta dampaknya yang meliputi pohon tumbang, akses jalan, dan jaringan listrik sehingga bisa terlihat mana saja daerah di Yogakarta yang rawan bencana angin kencang dan mana daerah yang tiddak rawan terhadap bencana angin kencang. Metode yang digunakan yaitu K-means Clustering dengan menggunakan matriks yang relevan dan Silhouette score. Pada tahun 2020 cluster pertama terdapat 3 kecamatan dengan indikator rawan angin kencang tinggi pada setiap kecamatan tersebut, cluster dua terdapat 19 kecamatan dengan indikator rawan angin kencang sedang pada setiap kecamatan, dan cluster ketiga terdapat 56 kecamatan dengan indikator rawan bencana angin kencang rendah. Sedangakan pada tahun 2021 cluster pertama terdapat 3 kecamatan dengan indikator rawan angin kencang tinggi pada setiap kecamatan tersebut, cluster dua terdapat 10 kecamatan dengan indikator rawan angin kencang sedang pada setiap kecamatan, dan cluster ketiga terdapat 65 kecamatan dengan indikator rawan bencana angin kencang rendah.
Implementasi Analisis Clustering K-Medoids dalam Pengelompokan Bayi Lahir, Gizi Buruk, dan BBLR Berdasarkan Kecamatan Di Kabupaten Sleman Tahun 2020
Authors: Kartika Anggraini Bianda Shafira , Abdullah Ahmad Dzikrullah
Published: April 2024

Petunjuk penulisan naskah ini dibuat untuk mempermudah Kesehatan ibu pada masa kehamilan merupakan suatu faktor penting akan kesehatan pertumbuhan anak. Ibu yang memiliki masalah saat masa kehamilan seperti kekurangan gizi atau berat badan ibu kurang akan memiliki risiko bayi lahir dengan berat badan yang kurang (BBLR), dan jika tidak memperhatikan asupan nutrisi, lingkungan yang bersih, dan pola asuh yang baik akan memiliki risiko tinggi untuk mengalami gizi buruk. Upaya dalam mencegah bertambahnya kasus BBLR dan gizi buruk tentunya sangat diperlukan. Pengelompokan kecamatan berdasarkan jumlah bayi lahir, gizi buruk, dan BBLR ini memiliki tujuan untuk mempermudah Badan Perencanaan Pembangunan Daerah Kabupaten Sleman dalam memberikan penanganan yang sesuai dengan kelompoknya. Dengan menggunakan penerapan Clustering K-Medoids, pada pengelompokan ini terbentuk menjadi 3 cluster. Cluster 1 merupakan cluster yang memiliki jumlah bayi lahir dan BBLR rendah, kemudian gizi buruk yang sedang, cluster 2 memiliki jumlah bayi lahir dan BBLR sedang, kemudian gizi buruk yang tinggi, dan cluster 3 memiliki jumlah bayi lahir dan BBLR tinggi, kemudian jumlah gizi buruk yang rendah.
Assessing Ride Motion Discomfort Measurement Formulas
Authors: Klauder, Jr Louis T
Published: April 2024

This article is about a framework for determining the degree of realism of any given 1 passenger ride motion discomfort measurement formula. After providing some context and reviewing 2 evidence of deficiency in currently popular ride motion discomfort measurement formulas, the article 3 outlines the research program that needs to be carried out in order to establish such a framework. 4 The research begins with gathering recordings of uncomfortable ride motion episodes encountered in 5 a chosen type of passenger transport service. It then has test subjects compare the episodes via a ride 6 motion simulator and adjust their amplitudes pair wise until they cause equal discomfort. It explains 7 how to take the pair wise amplitude adjustments and determine amplitude adjustments that bring all 8 of the motion episode recordings to a common level of discomfort so that they form a normalized set. 9 Then, the lower the scatter of the scores assigned by any given discomfort measurement formula to 10 the members of that set, the more realistic that formula will be for the chosen service.
The Impact of Climate Change Transition Innovations on the Default Risk
Authors: Huang Yujun , Huang Zhihao , Zhang Shuaishuai
Published: April 2024

In the process of climate change mitigation and adaptation, the focus on climate risk driven by transition innovations has received widespread attention from governments, regulators, and investors. Based on the identification of low-carbon patents through the Green and Low-carbon Technology Inventory in China, this study constructs low-carbon innovation measurements of listed firms in China from 2015 to 2021. Then, an empirical model is used to investigate the impact and mechanism of climate transition innovations on the default risk. The baseline regression model shows that low-carbon innovations can mitigate the default risk of listed firms. Moreover, our findings are supported by instrumental variable regressions that use the time costs of innovation. Finally, the mediation effect demonstrates that investor attention, total factor productivity, and technology spillovers are paths through which transition innovations can affect the default risk. This study reveals that low-carbon technological advances have a positive effect on climate transition risks.
Illuminating Intercellular Autophagy: A Comprehensive Review of Cell Non-Autonomous Autophagy
Authors: Selarka Karan , Shravage Bhupendra V.
Published: April 2024

Macro-autophagy (autophagy hereafter) is an evolutionarily conserved cellular process that has long been recognized as an intracellular mechanism for maintaining cellular homeostasis. It involves the formation of a membraned structure called the autophagosome, which carries cargo that includes toxic protein aggregates and dysfunctional organelles to the lysosome for degradation and recycling. Autophagy is primarily considered and studied as a cell-autonomous mechanism. However, recent studies have illuminated an underappreciated facet of autophagy, i.e., non-autonomously regulated autophagy. Non- autonomously regulated autophagy involves the degradation of autophagic components, including organelles, cargo, and signaling molecules, and is induced in neighboring cells by signals from primary adjacent or distant cells/tissues/organs. This review provides insight into the complex molecular mechanisms governing non-autonomously regulated autophagy, highlighting the dynamic interplay between cells within tissue/organ or distinct cell types in different tissues/organs. Emphasis is placed on modes of intercellular communication that include secreted molecules, including microRNAs, and their regulatory roles in orchestrating this phenomenon. Furthermore, we explore the multidimensional roles of non-autonomously regulated autophagy in various physiological contexts, spanning tissue development and aging, as well as its importance in diverse pathological conditions, including cancer and neurodegeneration. By studying the complexities of non-autonomously regulated autophagy, we hope to gain insights into the sophisticated intercellular dynamics within multicellular organisms, including mammals. These studies will uncover novel avenues for therapeutic intervention to modulate intercellular autophagic pathways in altered human physiology.
Process Intensification for Enhanced Fluoride Removal and Recovery As Calcium Fluoride Using Fluidized Bed Reactor
Authors: Sinharoy Arindam , Lee Ga-Young , Chung Chong Min
Published: April 2024

This study explored the feasibility of fluoride removal from simulated semiconductor industry wastewater and its recovery as calcium fluoride using fluidized bed crystallization. The continuous reactor showed best performance (>90% fluoride removal and >95% crystallization efficiency) at a calcium to fluoride ratio of 0.6 within first 40 days of continuous operation. The resulting particle size increased by more than double during this time along with a 36% increase in the seed bed height indicating deposition of CaF2 onto the silica seed. The SEM-EDX analysis showed the size and shape of the crystals formed along with high amount of Ca-F ions presence. The purity of the CaF2 crystals were determined to be 91.1% though ICP-OES analysis. Following the continuous experiment, different process improvement strategies are explored. The addition of excess amount of calcium resulted in an additional 6% fluoride removal, however, compared to this single stage process, a two-stage approach was found to be better strategy to achieve a low effluent fluoride concentration. The fluoride removal reached 94% with this two-stage approach under optimum condition of 4 + 1 h HRT combinations and a [Ca2+]/[F-] ratio of 0.55 and 0.7 for the two reactors, respectively. CFD simulation showed the impact of inlet diameter, bottom-angle shape and width and height ratio of the reactor on mixing inside reactor and possibility of further improvement in reactor performance by optimizing the FBR configuration.
Near-Infrared Spectroscopy-Based Machine Learning Models as a Simple and Fast Tool for the Prediction of Gestational Diabetes Mellitus at Different Stages of Pregnancy
Authors: Mennickent Daniela , Romero-Albornoz Lucas , Gutiérrez-Vega Sebastián , Aguayo Claudio , Marini Federico , Guzmán-Gutiérrez Enrique , Araya Juan
Published: April 2024

Gestational diabetes mellitus (GDM) is a hyperglycemia state that is typically diagnosed by an oral glucose tolerance test (OGTT), which is unpleasant, time-consuming, poorly reproducible, and tardy. The machine learning (ML) predictive models that have been proposed to improve GDM diagnosis are usually based on instrumental methods that take hours to get a result. Near-infrared (NIR) spectroscopy, a simple, fast and low-cost analytical technique has never been assessed for the prediction of GDM. This study aims to develop ML predictive models for GDM based on NIR spectroscopy, and to evaluate their potential as early detection or alternative screening tools according to their predictive power and time of analysis.

Serum samples from the first (before GDM diagnosis) and the second (at the time of GDM diagnosis) trimester of pregnancy were analyzed by NIR spectroscopy. Four spectral ranges were considered, and 80 pretreatments were tested for each. NIR data-based models were built with single- and multi-block ML techniques. Every model was subjected to double cross-validation. The best first and second trimester models got areas under the receiver operating characteristic curve of 0.5768 ± 0.0635 and 0.8836 ± 0.0259, respectively.

This is the first study reporting NIR spectroscopy-based methods for the prediction of GDM. The developed methods allow to predict GDM from 10 µL of serum in only 32 minutes. They are simple and fast, and have a great potential to be applied in clinical practice, especially as alternative screening tools to the OGTT at the time of GDM diagnosis.
A Comparison of Laminectomy and Hemilaminectomy Approaches for Resection of Spinal Schwannomas and Meningiomas
Authors: Lisi Serena Vittoria , Cappella Fabiola , Aiudi Denis , Di Rienzo Alessandro , Bianchi Elena , Chiapponi Mario , Mattioli Andrea , Dobran Mauro
Published: April 2024

Background: Spinal schwannomas and meningiomas are the most common spinal cord benign tumors in adults and total excision is the goal of the treatment. The traditional surgical approach is performed by total laminectomy, but recently unilateral hemilaminectomy has been recognized as a valuable surgical alternative.
We report the clinical results of patients affected by spinal schwannoma and meningioma in whom total laminectomy or unilateral hemilaminectomy were performed.
Material and Methods: A retrospective study of patients who underwent resection of spinal meningioma or schwannoma by laminectomy or unilateral hemilaminectomy approaches in our Institute from January 2013 to January 2023 was made. The baseline data of these patients, operative approach and postoperative outcome were compared.
Results: The study was performed on 41 patients with mean age of 62.5 ±14.6 years. Our series included 24 (59%) cases of schwannomas and 17 (41%) cases of meningiomas, with a prevalent location in the thoracic spine. The average schwannomas volume was 3,6 ±2,7 cm3, whereas the average meningiomas volume was 1.1 ±0.5 cm3. Total excision was achieved in all cases. Operative time of schwannomas was longer (p=0.001) respect to meningiomas with higher intra-operative blood loss (p=0.000). Total laminectomy approach was performed in 24 out of 41 patients (59%) and unilateral hemilaminectomy approach in 17 out of 41 (41%) patients. Unilateral hemilaminectomy was associated with shorter postoperative bed rest (p=0.003), shorter hospitalization (p=0.028) and lower postoperative pain (p=0.02) respect to total laminectomy.
Conclusions: Both spinal schwannomas and spinal meningiomas in various size can be safely and effectively treated with unilateral hemilaminectomy approach. This approach grants more advantages compared with standard total laminectomy, including shorter postoperative bed rest, shorter hospitalization and reduced postoperative pain.
JAK/STAT Inhibition Normalizes Lipid Composition in 3D Human Epidermal Equivalents Challenged with Th2 Cytokines
Authors: Flori Enrica , Cavallo Alessia , Mosca Sarah , Kovacs Daniela , Cota Carlo , Zaccarini Marco , Nardo Anna Di , Bottillo Grazia , Maiellaro Miriam , Camera Emanuela , Cardinali Giorgia
Published: April 2024

Atopic dermatitis (AD) is a chronic inflammatory disorder presenting a dysregulated immune response and derangement of the epidermal barrier lipids. The Th2-type cytokines interleukin IL-4 and IL-13 play a prominent role in AD by activating the Janus Kinase/Signal Transduction and Activator of Transcription (JAK/STAT) intracellular signal axis. This study aimed to investigate the role of JAK/STAT in the lipid perturbations induced by Th2 signaling in 3D-epidermal equivalents. We used tofacitinib, a low-molecular-mass JAK inhibitor, to screen for the JAK/STAT-mediated deregulation of lipid metabolism. Th2 cytokines decreased the expression of elongases 1, 3, and 4, and serine-palmitoyl-transferase and increased that of sphingolipid delta(4)-desaturase, and carbonic anhydrase 2. Th2 cytokines inhibited the synthesis of palmitate and caused a depletion of triglycerides. This depletion was associated with altered PC profiles and fatty acid (FA) metabolism. Overall, the ceramide profiles were minimally affected. Except for most sphingolipids and very long chain FAs, the effects of Th2 on lipid pathways were reversed by co-treatment with tofacitinib. An increase in the mRNA levels of CPT1A and ACAT1, reduced by tofacitinib, suggests that Th2 cytokines promote FA beta-oxidation. In conclusion, pharmacological inhibition of JAK/STAT activation prevents the lipid disruption caused by halted homeostasis of FA metabolism.