bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Entrepreneurial Capability on Entrepreneurial Behavior: Focused on the Mediating Effects of Entrepreneurial Education and Entrepreneurial Experience·Experience on Entrepreneurial Activities
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Jieun
Published: August 2023

Objectives This study aimed to examine entrepreneurial capability has an impact on entrepreneurial behavior, and to confirm whether entrepreneurial education and entrepreneurial experience·experience on entrepreneurial activities have a mediating effect in the process.
Methods Entrepreneurial capability was assumed as an independent variable, entrepreneurial behavior was assumed as a dependent variable, and entrepreneurial education and entrepreneurial experience·experience on entrepreneurial activities as mediating variables. To do this, a mediation model analysis was conducted through the responses of 297 learners from 14 universities who performed the KDB entrepreneurial education program conducted by the Korea Entrepreneurship Foundation.
Results According to the analysis, entrepreneurial capability had a positive effect on entrepreneurial behavior. In addition, entrepreneurial capability was found to have a positive effect on entrepreneurial behavior, through entrepreneurial education. However, no significant mediating effect was observed between entrepreneurial capability and entrepreneurial behavior through entrepreneurial experience·experience on entrepreneurial activities.
Conclusions The results of this study support previous research by confirming the effectiveness of entrepreneurial capability in positively influencing entrepreneurial behavior. Furthermore, it is significant to examine and confirm the mediating effects of entrepreneurial education and entrepreneurial experience·experience on entrepreneurial activities on the relationship between entrepreneurial capability and entrepreneurial behavior. The identification of entrepreneurial education as a mediating variable in the process where the effects of entrepreneurial capability manifest holds academic and practical significance.
A Study on the Potential of UGC New Media Platforms for Art Education: A Case Comparison Based on Wikipedia and Bilibili
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Zhang Yunhe
Published: August 2023

Objectives The purpose of this study is to explore how art education can be achieved in user participation in editing content and comments by comparing new media platforms under the UGC model-Wikipedia and Bilibili.
Methods For this, a case comparison method was applied to Wikipedia and Bilibili, two new media sites that follow the UGC model. The two platforms were compared by carefully examining a number of factors, including media editing techniques, knowledge linkages, and media participants. To gather data and gain comprehensive insights into the Wikipedia and Bilibili platforms, this research identified and compared the similarities and differences between the two based on relevant information, including content characteristics and user interaction patterns.
Results The results of the study are as follows. First, for users, sharing their opinions about an artist or an art work or gaining art knowledge by editing text is an act of thinking about art-related content or information afterwards, which itself has the meaning of art education. Second, for the platform operator, it can expand the influence of the platform and attract more groups to participate in the activities of the platform, which is also an act of mass communication of art. Third, in today's visual information explosion, it is necessary to further consider how text editing and visual information can be better combined in the UGC platform to make more contributions to art education for the public.
Conclusions Based on the results of the analysis, the significance of the new media platforms in the UGC model- Wikipedia and Bilibili-for art education and the potential for development are illustrated. By conducting a comparative analysis, the similarities and differences between the two can be identified, allowing for a comprehensive understanding of their characteristics, benefits, and drawbacks. This can provide valuable insights for the development and utilization of art education through new media platforms.
Percepção Ambiental dos Alunos sobre o Rio Piquiri/RN
Authors: Dias José Reginaldo Nunes , Alves Sandra Maria Campos , Maia Marcio Monteiro , Chagas Márcio Marreiro das
Published: August 2023

A presente pesquisa buscou avaliar, a percepção ambiental dos alunos da EJA, da escola municipal Elza Bezerril Ribeiro, no total de 50 alunos das turmas A e B, sobre o rio Piquiri RN, que está localizada na APA Piquiri-UNA, mais especificamente na divisa dos municípios de Pedro Velho e Espírito Santo, até a sua desembocadura no rio Espinho, já no município de Canguaretama/RN.A pesquisa foi desenvolvida no período de maio a novembro de 2017.O trabalho foi dividido em três momentos: dois em sala de aula e um à campo. No primeiro momento foi aplicado um questionário, para avaliar a percepção ambiental dos alunos; no segundo momento os alunos foram ao rio Piquiri e fizeram um levantamento fotográfico, filmagens dos impactos ambientais que o rio vem sofrendo nos últimos anos, e no terceiro momento foi aplicado outro questionário, para avaliar a percepção ambiental dos alunos em relação às problemáticas ambientais do rio Piquiri. Observamos que, havia divergências em relação as questões ambientais, antes e depois da intervenção, no primeiro momento os alunos desconheciam alguns termos relacionados as questões ambientais, tais como mata ciliar, erosão, assoreamento entre outros, já no segundo momento os alunos apresentaram boa noção em relação aos conceitos de meio ambiente. Os alunos destacaram a importância de se tornarem agentes ambientais, para poder lutar pela preservação e manutenção do rio, elaborando planos e ações junto à comunidade local, que venham a mitigar os danos ambientais ocorridos no rio Piquiri.
Luz síncrotron promovendo o giro decolonial
Authors: Acioly Vitor , Morais Rodrigo , Santos Antonio
Published: August 2023

Este artigo é um recorte de uma pesquisa de doutorado de caráter qualitativo, visando, inicialmente, investigar como os cursos de formação continuada contribuem para que docentes da área de exatas transformem suas práticas de ensino, por meio da valorização dos seus saberes e das possibilidades de reflexão e aprendizagem.  Pela análise do discurso dos sujeitos participantes de um curso de formação continuada de professores, percebeu-se que, no imaginário deles, existia um local exclusivo de produção de conhecimento significativo e que esse tipo de percepção colaborava de maneira efetiva para invisibilizar contribuições científicas brasileiras. Os dados empíricos foram produzidos pela observação participante durante a Escola Sirius para Professores do Ensino Médio (ESPEM) oferecida presencialmente nos anos de 2019 e 2020, a partir de narrativas dos sujeitos participantes. Os resultados indicam uma subalternização epistemológica por meio de discursos que exaltam a produção científica de países europeus e que apagam a produção científica brasileira. As análises também indicam o papel da ESPEM na promoção de uma virada decolonial.
Comparative Genetics Using Three mtDNA Markers in Aedes aegypti (Linnaeus) Populations from Municipalities in the State of Mato Grosso, Brazil.
Authors: Mariotto Sandra , Silva Mari Rose Oliveira , Butakka Cristina Márcia de Menezes , Cerqueira Lenicy Lucas de Miranda , Miyazaki Rosina Djunko , Camolezi Giovanna Campos , Rodrigues Fabiana Aparecida Caldart
Published: August 2023

A methodological strategy for teaching in health and environment is to know the genetics of an important vector of dengue in different populations of mosquitoes. The aim of this study was to investigate the genetic variability of Aedes aegypti through molecular markers of mitochondrial DNA, COI, ND4 and ND5. Mosquitoes were collected using ovitraps to capture them at points located in four municipalities in the state of Mato Grosso. Subsequently, we amplified 169 samples with the best DNA result using primers for mitochondrial DNA (mtDNA): Cytochrome Oxidase Subunit I (COI - F and R), Nicotinamide Adenine Dinucleotide Dehydrogenase Subunit 4 (ND4 - F and R) and Nicotinamide Adenine Dehydrogenase 5 (ND5 - F and R). We used the Geneious software to build dendrograms for differentiating populations from each municipality. The interpopulational genetic distance obtained from sequence analysis showed a difference within populations through groups' formation in the ordering. Besides, we identified a difference in the interindividual genetic distance values, notably for the ND5 gene from the populations captured in the four municipalities. We recorded the smallest interindividual genetic distance within populations for populations from Chapada dos Guimarães. Extrinsic factors, including breeding habitat removal, can contribute to decreasing variability, consequently, the dendrogram showed some similarities. Scientific knowledge, laboratory teaching and genetic flow investigation stimulate actions to prevent transmitted diseases and support essential and effective measures to control and combat Ae. aegypti.
Consumer Preferences for Residential Real Estate Properties among Interested Buyers in Laguna Province, Philippines, before and during the COVID-19 Pandemic
Authors:   Asian Trade Association, Alyssa A. Relova , Jeanette Angeline B. Madamba , Dinah Pura T. Depositario , James Roldan S. Reyes
Published: August 2023

Purpose – This study assessed the consumer preferences for residential real estate properties among interested buyers in Laguna, Philippines, before and during the COVID-19 pandemic. Design/Methodology/Approach – Interested property buyers in Laguna were randomly selected and characterized based on their socio-demographic and economic characteristics, and their COVID-19 experiences were described. Consumer preferences for different aspects of housing units were examined descriptively and using McNemar’s test, changes in preferred attributes of residential units before and during the pandemic were compared. Findings – Single-detached economic housing with three bedrooms was the most preferred type of unit of interested buyers. It was found that the higher the monthly income of respondents, the higher the property value they preferred to purchase. Los Baños is the preferred municipality to live in because of its proximity to the metropolitan capital. The preferred mechanism of ownership is either rent-to-own or via a loan. Those earning a monthly income of PhP 131,484 (USD 2,708.77) to PhP 219,140 (USD 4,514.63) preferred to purchase residential property in cash. As for attributes, proximity to highways, proximity to community services, proximity to houses of family and friends, presence of swimming pool, presence of sense of community, secured and guarded community, quiet surroundings, presence of panoramic views, and pet-friendly home and community are statistically significantly different. Research Implications – Residential real estate developers should respond to various differences in consumer preferences. To continue satisfying prospective buyer demand and successfully close sales, it is vital to consider these consumer preference changes relative to residential projects.
THREE NEW BIS(ACYLHYDRAZONE) MONONUCLEAR TRANSITION METAL COMPLEXES: SYNTHESIS, CHARACTERIZATIONS AND DNA INTERACTION STUDIES
Authors: KINCAL Sultan , GÖKTÜRK Tolga , TOPKAYA Cansu , GÜP Ramazan
Published: August 2023

In recent years, studies on the design and synthesis of artificial nucleases with biological, structural and coordination properties have been increasing. With this study, mononuclear complex compounds were obtained with Cu(II), Ni(II) and Zn(II) transition metal ion salts of bis(acylhydrazone) ligand, which has the potential to show biological activity and has revolving atoms such as N and O in its structure. The characteristic structures of the obtained complex compounds were elucidated using various techniques such as FTIR, UV-Visible, 1H-NMR, TGA, elemental analysis and magnetic susceptibility. The DNA-binding activities of potential artificial metallonucleases, whose structures were elucidated, were investigated using the UV-visible absorption titration method. Additionally, their DNA-cleavge activities were analyzed using the agarose gel electrophoresis method. The DNA binding mode and cleavage mechanisms were determined as part of this study.. In line with the results obtained, it was determined that the binding mode between DNA and the complexes is a noncovalent interaction. It has been demonstrated that the compounds cleavage DNA both oxidatively and hydrolytically. It has been revealed that the radicals involved in DNA cleavage activity are H2O2, superoxide and hydroxyl radicals. It was revealed that the compound with the highest cleavage and bonding interaction was the Cu(II) complex, followed by Ni(II) and Zn(II) complexes.
Recent progress in biomimetic nanomedicines based on versatile targeting strategy for atherosclerosis therapy
Authors: Deng Yiping , Ao Zuojin , Tang Jun , Tian Ji , Zhou Xiangyu , Li Chunhong
Published: August 2023

Atherosclerosis (AS) is considered to be one of the major causes of
cardiovascular disease. Its pathological microenvironment is
characterized by increased production of reactive oxygen species, lipid
oxides, and excessive inflammatory factors, which accumulate at the
monolayer endothelial cells in the vascular wall to form AS plaques.
Therefore, intervention in the pathological microenvironment would be
beneficial in delaying AS. Researchers have designed biomimetic
nanomedicine (nanomedicine) with excellent biocompatibility and the
ability to avoid being cleared by the immune system through different
therapeutic strategies to achieve better therapeutic effects for the
characteristics of AS. Biomimetic nanomedicine can further enhance
delivery efficiency and improve treatment efficacy due to their good
biocompatibility and ability to evade clearance by the immune system.
Biomimetic nanomedicine based on therapeutic strategies such as
neutralizing inflammatory factors, ROS scavengers, lipid clearance and
integration of diagnosis and treatment are versatile approaches for
effective treatment of AS. The review firstly summarizes the targeting
therapeutic strategy of biomimetic nanomedicine for AS in recent 5
years. Biomimetic nanomedicine using cell membranes, proteins, and
extracellular vesicles as carriers have been developed for AS.
The impact of altered rainfall on flowering phenology in an annual grassland and its implications for coexistence
Authors: Dyke Mary Van , Kraft Nathan
Published: August 2023

Shifts in the timing of life history events, or phenology, have been
recorded across many taxa and biomes in response to global change. These
phenological changes are likely to have cascading effects on biotic
interactions and community structure, but untangling the realized
demographic consequences of these shifts is challenging. Focusing on an
annual grassland plant community, we examined how experimental changes
in precipitation affect flowering phenology in a community context and
explore the implications of these shifts for competitive interactions
and species coexistence. We found that changes in rainfall shift some
species flowering phenology, but sensitivity differed among neighboring
species. Four of seven species we studied started and/or peaked
flowering earlier in response to reduced water availability. The
idiosyncratic shifts in flowering phenology we observed have the
potential to alter existing temporal dynamics that may be maintaining
coexistence, such as temporal separation of resource use amongst
neighbors. We show how rainfall induced phenology changes may have
impacted competition outcomes between species pairs due to differences
in their response to reduced water availability. More research on the
effects of phenology changes on coexistence and the community level
repercussions they cause due to changes in competitive interactions is
essential for mitigating the impacts of climate change.
Do pulse-disturbance outcomes match up to microhabitats?
Authors: Root-Bernstein Meredith
Published: August 2023

Pulses, or irregular resource increases, and disturbances, or removal
and reorganization of matter, have usually been used to explain
different ecosystem level attributes, although with differing abilities
to generate accurate predictions. There is clear overlap between the
phe-nomena that the two concepts describe. Jentsch & White (2019)
introduce the concept of the “pulse-disturbance”. Both resource pulses
and disturbances can be characterized as events that transform, augment,
or reduce resources, nutrients, or biomass properties, along multiple
dimensions. These dimensions can be measured with a range of variables
repre-senting ecological processes or biodiversity outcomes. Any given
multi-dimensional pulse-disturbance event may act as a disturbance
(decreases in some variable values) and simulta-neously as a pulse
(increases in other variable values). Although the pulse-disturbance
con-cept is insightful, alone it does not generate falsifiable
predictions about outcomes. Draw-ing on the pulse-disturbance concept I
present a framework for predicting the impacts of pulse-disturbance
combinations by relating them to the concept of the microhabitat.
Micro-habitats explain fine-scale spatial patterning, biodiversity, and
are better than macroecologi-cal variables at explaining niche
coexistence. The establishment microhabitat is particularly good at
predicting adult plant distributions. I note that there is a similarity
between the mul-ti-dimensional concept of the pulse-disturbance and the
multi-dimensional description of microhabitats. I propose that
pulse-disturbances can create, and correspond to, microhabi-tats, or
overlap completely or partially with microhabitat requirements. Thus, a
predictable aspect of pulse-disturbances is the correspondence between
the microhabitats they produce, and the establishment microhabitat
requirements of species in the available pool. I propose to focus on the
prediction of indicator species, given that data on species’
establishment microhabitat requirements are not always available in
databases. To illustrate the approach, I present two case studies of
predicting plant community responses to novel or reintroduced
pulse-disturbances from central Chile.
Temporal collections to study invasion biology
Authors: Kim Amy , Kreiner Julia , Hernandez Fernando , Bock Dan , Hodgins Kathryn , Rieseberg Loren
Published: August 2023

Biological invasions represent an extraordinary opportunity to study
evolution. This is because accidental or deliberate species
introductions have taken place for centuries across large geographical
scales, in natural and anthropogenic environments. Until recently
however, the utility of invasions as evolutionary experiments has been
hampered by the limited information on the makeup of populations that
were part of earlier invasion stages. Now, developments in ancient and
historical DNA technologies, as well as the quickening pace of
digitization for millions of specimens that are housed in herbaria and
museums globally promise to help overcome this obstacle. In this review,
we first introduce the types of temporal data that can be used to study
invasions, highlighting the timescale captured by each approach, and
their respective limitations. We then discuss how ancient and historical
specimens as well as data available from prior invasion studies can be
used to answer questions on mechanisms of (mal)adaptation, rates of
evolution, or community-level changes during invasions. By bridging the
gap between contemporary and historical invasive populations, temporal
data can help us connect pattern to process in invasion science. These
data will become increasingly important if invasions are to achieve
their full potential as experiments of evolution in nature.
Pharmacokinetics of amphotericin B after accidental overdose in an adult critically ill patient treated with plasmapheresis: A case report
Authors: oers jos van , Workum Jessica , Voorzaat Bram , Jaspers Tessa
Published: August 2023

Amphotericin B is a broad-spectrum antifungal agent that is used in the
treatment of systemic fungal infections. We describe the case of a
62-year-old female patient with recent aneurysmal subarachnoid
hemorrhage who was treated for suspected ventriculitis and a fungal
coinfection. Instead of liposomal amphotericin B (L-AmB), 465 mg (5
mg/kg) amphotericin B deoxycholate (DOC) was inadvertently administered,
leading to refractory shock with multiple organ failure and requiring
mechanical ventilation. Since an overdose of amphotericin B can lead to
fatal consequences and has a half-life of 15 days, plasmapheresis was
started. The serum concentration decreased from 1.32 µg/mL to 0.62 µg/mL
before plasmapheresis, demonstrating a mean half-life of 49 hours. After
two plasmapheresis sessions, the serum concentration further dropped to
0.26 µg/mL, demonstrating a mean half-life of 17 hours. In contrast, the
third plasmapheresis session had no effect on serum concentration. The
patient made a full recovery, potentially facilitated by enhanced
amphotericin B elimination through plasmapheresis. Positive outcomes
were previously reported in two adult patients treated with
plasmapheresis. However, other reports without plasmapheresis described
fatal outcomes in adult patients, albeit with a twofold overdose
compared to the two patients successfully treated with plasmapheresis.
Moreover, plasmapheresis itself carries risks such as hypocalcemia,
metabolic alkalosis, and coagulation deficits. Consequently, the role of
plasmapheresis in amphotericin B overdose is still debated.
Threshold Voltage Extraction Using Unconventional Conductance-Voltage Method for Nano Organic/Oxide Thin Film Transistors: Comparative Study of P and N-Type Devices
Authors: Agarwal Rajesh , Krishna Illa Pream , Tej Thathamsetty Viswa , Manideep Manchikanti
Published: August 2023

Threshold voltage (V) is a crucial parameter
for the proper functioning of a transistor. In this study, we propose an
alternative method, called the conductance-voltage method, to extract
the threshold voltage. This method uses the change in drain current
(I) with applied gate voltage (V) as
the device transition from the weak accumulation to the strong
accumulation mode of operation to estimate the threshold voltage. This
method was then applied to pentacene-based and amorphous
indium-gallium-zinc-oxide (a-IGZO)-based thin-film transistors (TFTs) in
their linear region of operation using two-dimensional simulations. The
results were promising, and this new method provides a valuable tool for
optimizing the performance of Complementary Organic/Oxide TFTs for
future applications.
Gate Misalignment Effect on Electrical Characteristics and Comparison of Analog/RF Performance Parameters of Charge Plasma-Based Triple Metal Dual Gate Vertical TFET
Authors: Agarwal Rajesh , Kumbhar Rohit R. , Agarwal Harshit , Lekhi Vibhav , Nandi Upasana , wadhwa girish
Published: August 2023

During the fabrication of a double gate TFET structure, there is a high
chance of gate misalignment which may affect the sensitivity of the
sensors. In this paper, we investigated various effects of gate
misalignment and switching characteristics of charge plasma-based triple
metal double gate vertical TFET on electrical characteristics. We
observed effects on analog/RF parameters on the proposed structure such
as transconductance (g ), output conductance (g
), intrinsic gain (A ), total gate
capacitance (C ), and cut-off frequency (f
), along with threshold voltage (V )
and sub-threshold slope (SS). The work focuses on the investigation of
these parameters in three scenarios of gate misalignment: towards the
drain, towards the source, and towards the drain and source with
different probable percentages of misalignment. The results are analyzed
by considering SiO and HfO as gate
oxide materials.
The risk of recurrent preterm birth after spontaneous preterm birth between 16-28 weeks of gestation: A national observational cohort study
Authors: GILS Annabelle L. VAN , Ravelli Anita , KAMPHUIS Esme I. , KAZEMIER Brenda M. , Pajkrt Eva , Oudijk Martijn , de Marjon Boer,
Published: August 2023

Background: Previous spontaneous preterm birth (sPTB) is an
important risk factor for recurrent PTB, yet consensus on the lower
limit of PTB is lacking. This complicates the identification of patients
at risk for recurrent PTB. Objectives: To assess the risk of
recurrent preterm birth following spontaneous extreme PTB between 16
- 27 weeks and the association
with the interpregnancy interval. Design: A nationwide
retrospective cohort study. Setting: Data from the Perinatal
Registry of the Netherlands. Population: Nulliparous women with
a singleton pregnancy that ended in sPTB between 16
and 27 weeks of gestation without congenital
anomalies or antenatal death between 2010-2014 and had a subsequent
pregnancy in the 5 years following. Main outcome measures:
Recurrent preterm birth < 37 weeks. Results: 1011
women with linked pregnancies were included. The risk of PTB <
37 weeks with prior spontaneous birth between 16 -19
, 20 -23 ,
and 24 -27 weeks was
respectively 19.0%, 29.5% and 27.6%. The risk of subsequent PTB
< 24 weeks was 5.7%, 7.2% and 4.3%. A short interpregnancy
interval of 0-3 months was associated with increased odds for recurrent
PTB < 32 weeks (OR 2.3 95% CI 1.4-3.7) and PTB < 37
weeks (OR 1.8 95% CI 1.2-2.6). Conclusion: Patients with
previous sPTB from 16 weeks GA onwards are at high risk for recurrent
PTB and should be regarded as such in the consideration of preventive
measures to prevent recurrent adverse pregnancy outcomes.
Increased carriage of virulence genes mediates enhanced pathogenicity of chronic rhinosinusitis-related S. aureus strains
Authors: Salib Rami , P Simon Goldie , Lau Laurie , AS Huw Jones , Harries Philip , Walls Andrew
Published: August 2023

Background There is growing evidence to implicate
Staphylococcus aureus ( S. aureus) in the pathogenesis of
recalcitrant chronic rhinosinusitis (CRS). Our group has demonstrated
the ability of S. aureus to internalise within mast cells in
nasal polyps and this may mediate disease recalcitrance. We investigated
carriage of virulence genes in CRS-related S. aureus strains and
its influence on the bacteria’s ability to localise and survive
intracellularly. MethodsS. aureus strains isolated from
non-CRS controls (n=5), CRSsNP (n=4) and CRSwNP patients (n=4) were
sequenced using short read paired sequencing and interrogated for
carriage of virulence genes. A representative control and CRSwNP isolate
were tested for intracellular survival in the LAD2 mast cell line to
investigate phenotypic differences. Results Fifty percent of
the CRSwNP group had deletion of the hld gene which may promote small
colony variant formation or reduced enterotoxin production, and
seventy-five percent expressed virulence genes associated with invasive
disease. The CRSwNP isolate had a superior ability to localise
intracellularly at 6 and 9 hours and showed a higher burden of S.
aureus colony forming units at 24 hours. Conclusions When
compared to non-CRS controls, CRS-related S. aureus strains
demonstrate increased carriage of virulence genes. This appears to
facilitate intracellular localisation of the bacteria conferring a
survival advantage and enhancing pathogenicity. The latter may be partly
due to a reduction in enterotoxin production and the acquisition of
serine proteases splA and B and leukocidins E/D genes. This pathogenic
S. aureus phenotype may manifest clinically with disease
recalcitrance and refractoriness to antibiotics.
EVALUASI BOBOT KERING TAJUK DAN BOBOT DOMPOLAN (HEAD) BEBERAPA GENOTIPE SORGUM (Sorghum bicolor [L.] Moench) MELALUI SIDIK LINTAS (PATH ANALYSIS)
Authors: Hadi Muhammad Syamsoel , Ratu Aisyan Nur Anana , Setiawan Kukuh , Kamal Muhammad
Published: August 2023

Penelitian ini bertujuan untuk mengevaluasi bobot kering tajuk dan bobot dompolan (head), menghitung korelasi antara komponen pertumbuhan dan hasil berbagai genotipe sorgum, dan menentukan pengaruh langsung dan tidak langsung berbagai komponen pertumbuhan dan hasil terhadap bobot dompolan yang dihitung menggunakan sidik lintas pada berbagai genotipe sorgum.  Penelitian dilakukan di Desa Sukanegara, Kecamatan Tanjung Bintang, Kabupaten Lampung Selatan, Provinsi Lampung, pada April sampai November 2019.  Tujuh genotipe sorgum (Super-1, Mandau, P/I 150-21-A CYMMIT, P/F 5-193-C, P/F 10-90-A, UPCA, dan Talaga Bodas) disusun dalam Rancangan Acak Kelompok Lengkap (RAKL) dengan tiga ulangan.  Hasil penelitian menunjukkan terdapat variasi bobot kering tajuk dan bobot dompolan antargenotipe.  Genotipe Mandau dan P/F 10-90 A menghasilkan bobot kering tajuk (66,93 g dan 56,46 g) dan bobot dompolan (52,68 g dan 56,81 g) lebih tinggi dibanding genotipe lain.  Terdapat korelasi positif antara bobot kering tajuk dengan bobot dompolan (r=0,76**), serta bobot dompolan dengan bobot biji (r=0,90**).  Bobot kering tajuk memiliki nilai pengaruh langsung terhadap bobot dompolan sebesar 0,6037.  Selain itu, bobot biji memiliki pengaruh langsung terhadap bobot dompolan sebesar 0,7373.
HAMA-HAMA TANAMAN JAGUNG DAN KERAGAMAN ARTROPODA PADA PERTANAMAN JAGUNG DI KABUPATEN PESAWARAN DAN LAMPUNG SELATAN, PROVINSI LAMPUNG
Authors: Purnomo Purnomo , Ananda Ellen Aprilia , Fajar Ahmad Al , Wibowo Lestari , Lestari Puji , Swibawa I Gede
Published: August 2023

Penelitian ini bertujuan untuk mengetahui berbagai jenis hama utama yang ditemukan selama masa pertumbuhan tanaman jagung, serta keragaman artropoda yang ada pada ekosistem pertanaman jagung di Kabupaten Lampung Selatan dan Pesawaran, Provinsi Lampung. Pengamatan dilakukan di empat lokasi: dua lokasi  di Lampung Selatan  dan dua lokasi di  Pesawaran. Pada keempat lokasi tersebut cara budidaya tanaman jagungnya sama, yang berbeda adalah varietas jagung yang ditanam. Hasil pengamatan menunjukkan bahwa hama-hama utama yang menyerang tanaman jagung pada fase vegetatif dan generatif adalah Peregrinus maidis (Hemiptera: Delphacidae), Spodoptera frugiperda (Lepidoptera:Noctuidae), Ostrinia furnacalis (Lepidoptera:Crambidae), dan Helicoverpa armigera (Lepidoptera:Noctuidae). Populasi fitofag yang juga cukup tinggi adalah Leptocorisa oratorius (Hemiptera: Coreidae), meskipun serangga ini sangat jarang diklaim sebagai hama penting tanaman jagung. Di antara 5 spesies serangga fiotofag tersebut, populasi tertinggi ditempati oleh hama P. maidis yang ditemukan pada semua lahan pengamatan.  Perbedaan varietas berpengaruh terhadap populasi hama-hama pada pertanaman  jagung. Hasil penelitian juga menunjukkan bahwa di Lampung Selatan:  Way Layap (BISI-18) ditemukan 10 ordo dan 49 famili, lokasi Suka Bandung (SUMO) ditemukan 13 ordo dan 52 famili. Adapun di Pesawaran:  Sri Mulyo (Pioneer-27) ditemukan 12 ordo dan 51 famili, dan di lokasi Solehudin (BISI-321) ditemukan 12 ordo dan 49 famili. Artropoda yang ditemukan berperan sebagai hama, predator, parasitoid, polinator, dan dekomposer. Indeks keragaman artropoda tergolong dalam kategori sedang dengan nilai tertinggi di  lokasi Suka Bandung  (2,34). Indeks dominasi tertinggi di lokasi Sri Mulyo dengan nilai 0,43. Indeks kemerataan tertinggi di lokasi Suka Bandung  dan Way Layap  dengan nilai 0,59.
EKSPLORASI MIKROORGANISME PROKARIOT ASAL BONGGOL PISANG UNTUK MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN PISANG SECARA IN VITRO
Authors: Elvara Ramasta Nesya , Nurdin Muhammad , Ivayani Ivayani , Dirmawati Suskandini Ratih
Published: August 2023

Fusarium oxysporum f. sp cubense (E.F.Smith) Snyder dan Hansen (Foc) merupakan patogen yang menyebabkan penyakit layu fusarium pada tanaman pisang. Saat ini usaha pengendalian masih menggunakan pengendalian kimiawi, namun pengendalian kimiawi yang berlebihan dapat menimbulkan kerugian pada manusia dan lingkungan. Salah satu alternatif yaitu menggunakan agensi hayati yang berasal dari fermentasi bahan-bahan alami yang mengandung mikroorganisme lokal (MOL). Salah satu limbah pertanian yang dapat digunakan dalam membuat larutan MOL adalah bonggol pisang. Kandungan gizi dalam bonggol pisang dapat digunakan mikroorganisme lokal baik untuk berkembang. Penelitian ini bertujuan untuk mengetahui: (1) mengetahui beberapa karakteristik mikroorganisme prokariot yang terkandung dalam larutan MOL asal bonggol pisang, (2) mengetahui kemampuan masing-masing mikroorganisme prokariot yang terkandung dalam larutan MOL asal bonggol pisang dalam menekan pertumbuhan Foc secara in vitro, (3) mengetahui kemampuan masing-masing mikroorganisme prokariot yang terkandung dalam larutan MOL asal bonggol pisang dalam memacu pertumbuhan mentimun. Penelitian ini dilakukan di Laboratorium Hama dan Penyakit Tumbuhan Universitas Lampung untuk pengujian secara in vitro dan PT Great Giant Food Lampung Timur untuk pengambilan bonggol pisang dan sumber inokulum Foc. Metode penelitian ini terdiri dari 2 tahap yaitu eksplorasi mikroorganisme lokal dan pengujian masing-masing bakteri hasil eksplorasi mikroorganisme lokal terhadap patogen Foc. Hasil penelitian menunjukkan bahwa (1) hasil uji karakteristik didapatkan bahwa isolat BP1 dan isolat BP2 bersifat gram positif, sedangkan isolat BP3 bersifat gram negatif dan ketiga isolat tersebut tidak softrot dan tidak hipersensitif serta bersifat hipovirulen, (2) isolat BP1, BP2, dan BP3 mampu menghambat pertumbuhan patogen Foc secara in vitro, dan (3) isolat BP1, BP2, dan BP3 mampu memacu pertumbuhan panjang akar tanaman dan jumlah rambut akar pada kecambah mentimun.
RESPON TANAMAN BAWANG MERAH (Allium ascalonicum L.) KULTIVAR BIMA BREBES TERHADAP BERBAGAI JENIS BIOCHAR
Authors: Trisnaningsih Umi , Pujiana Pujiana , Saleh Ismail
Published: August 2023

Biochar adalah hasil pirolisis dari bahan organik limbah pertanian yang digunakan sebagai ameliorant tanah. Pada penelitian ini diuji biochar dari berbagai bahan yang berbeda, untuk mengetahui pengaruhnya terhadap pertumbuhan dan hasil bawang merah kultivar Bima Brebes. Percobaan dilaksanakan di Desa Palir, Kabupaten Cirebon. Metode yang digunakan dalam penelitian ini adalah metode eksperimen, rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok. Perlakuan berbagai jenis biochar yang terdiri dari 6 taraf perlakuan meliputi kontrol, biochar tempurung kelapa, biochar ampas tebu, biochar brangkasan jagung, biochar limbah bambu dan biochar jerami padi. Semua perlakuan diulang 4 kali. Variabel yang diamati meliputi tinggi tanaman, jumlah daun, jumlah anakan, volume akar, bobot umbi basah per rumpun dan per petak, serta bobot umbi kering per rumpun dan per petak. Hasil penelitian menunjukan bahwa berbagai jenis biochar berpengaruh nyata terhadap pertumbuhan dan hasil bawang merah. Bahan baku biochar yang terbaik pengaruhnya terhadap pertumbuhan dan hasil tanaman bawang merah adalah brangkasan jagung.
APLIKASI RIZOBAKTERI ASAL RIZOSFER KELAPA SAWIT TERHADAP VIGOR BENIH PADI
Authors: Mudi La , Rusmini Rusmini , Sutariati Gusti Ayu Kade , Rakian Tresjia Corina , Yusuf Mani
Published: August 2023

Tujuan penelitian ini yaitu untuk mengevaluasi berbagai isolat rizobakteri asal rizosfer kelapa sawit dalam meningkatkan vigor benih padi. Penelitian ini dilaksankan pada bulan Juni sampai Juli 2022, di Laboratorium Agronomi pada Program Studi Budidaya Tanaman Perkebunan Jurusan Perkebunan Politeknik Pertanian Negeri Samarinda. Penelitian ini menggunakan rancangan acak lengkap dengan 21 perlakuan (20 isolat rizobakteri + 1 kontrol) dengan 3 kali pengulangan sehingga diperoleh 63 unit percobaan. Variabel pengamatan pada penelitian ini yaitu daya berkecambah, indeks vigor benih, kecepatan tumbuh relatif, keserempakan tumbuh, potensi tumbuh maksimum, T50, Berat kering kecambah normal dan panjang akar. Data hasil pengamatan dianalisis menggunakan analisis ragam dan hasil analisis yang menunjukkan pengaruh nyata dilanjutkan dengan uji DMRTα=0.05. Hasil pada penelitian menunjukkan bahwa perlakuan rizobakteri asal rizosfer kelapa sawit dapat memacu viabilitas dan vigor benih padi. Perlakuan rizobakteri isolat P01 secara konsisten mampu meningkatkan viabilitas dan vigor benih padi, diikuti isolat S05, SK02 dan TA2. Hasil penelitian ini menunjukkan bahwa isolat rizobakteri asal rizosfer sawit berpotensi untuk meningkatkan pertumbuhan tanaman.
SURVEI KEPADATAN POPULASI HAMA DAN AGENSIA HAYATI PADA TANAMAN PADI SAWAH DI DESA TIRTALAGA KABUPATEN MESUJI, PROVINSI LAMPUNG
Authors: Wibowo Lestari , Safitri Khofifah Nur Indah , Nurmauli Niar , Hariri Agus M
Published: August 2023

Penelitian dilaksanakan bulan November 2021 sampai Januari 2022 bertempat di Desa Tirtalaga Kabupaten Mesuji, Provinsi Lampung yang bertujuan untuk mengetahui kepadatan populasi hama penting dan agensia hayati hama  pada tanaman padi sawah. Metode penelitian dilakukan dengan cara survei (pengamatan langsung di lapang). Pengamatan ini dilakukan pada persawahan milik Kelompok Tani Makmur, Kelompok Tani Suka Maju, Kelompok Tani Sumber Rezeki, dan Kelompok Tani Suka Jadi.  Pengamatan dilakukan sebanyak 12 kali sejak tanaman padi berumur 1 MST-12 MST. Jenis hama yang ditemukan di tanaman padi sawah adalah hama putih palsu (Cnapalocrosis medinalis), wereng batang coklat (Nilaparvata lugens), penggerek batang padi putih (Scirpophaga innotata), wereng hijau (Nephotettix viresecens), dan walang sangit (Leptocorisa oratorius). Kepadatan populasi C. medinalis pada minggu ke-1 dan 2 di semua hamparan berada di atas ambang ekonomi, sedangkan pada minggu berikutnya populasi menurun hingga di bawah ambang ekonomi. Kepadatan populasi N. lugens, S. innotata, N. virescens, dan L. oratorius pada semua hamparan berada di bawah ambang ekonomi. Agensia hayati yang ditemukan antara lain Coccinellidae, Scarabaeidae, Dytiscidae, Andrallus spinidens, Tetragnathidae, Araneidae, Lycosidae, Pipunculidae, Coenagrionidae, Gomphidae, Mymaridae, Eurytomidae, Encyrtidae, Ichneumonidae, Formicidae, Dryinidae, Braconidae, Trichogrammatidae, dan Forficulidae
PENGARUH EKSTRAK RIMPANG TEMU IRENG, DAUN KELOR DAN STREPTOMYCES SP. TERHADAP PERKECAMBAHAN SPORA PERONOSCLEROSPORA SP. DAN DAN KETERJADIAN PENYAKIT BULAI JAGUNG
Authors: Aslinda Erni , Aeny Titik Nur , Prasetyo Joko , Sudiono Sudiono , Dirmawati Suskandini Ratih
Published: August 2023

Penggunaan fungisida nabati dan agen pengendali hayati merupakan satu alternatif dalam pengendalian penyakit bulai pada tanaman jagung.  Ekstrak rimpang temu ireng, daun kelor dan bakteri Streptomyces sp. dilaporkan memiliki kandungan senyawa yang perpotensi sebagai antijamur.  Penelitian ini bertujuan untuk (1) mengetahui pengaruh ekstrak rimpang temu ireng dan daun kelor terhadap perkecambahan spora Peronosclerospora sp., intensitas penyakit bulai dan pertumbuhan tanaman jagung, dan (2) mengetahui pengaruh interaksi antara ekstrak tanaman dengan Streptomyces sp. terhadap intensitas penyakit bulai dan pertumbuhan tanaman jagung.  Penelitian ini menggunakan rancangan acak kelompok yang disusun dalam faktorial.  Faktor pertama merupakan jenis ekstrak tanaman (tanpa ekstrak, ektrak temu ireng, ekstrak daun kelor) dan faktor kedua adalah jenis isolat Srteptomyces sp. (tanpa Streptomyces, isolat I1, dan isolat i18) sehingga terdapat 9 perlakuan.  Masing-masing perlakuan diulang sebanyak 4 kali sehingga diperoleh 36 satuan percobaan.  Hasil penelitian menunjukkan bahwa ekstrak rimpang temu ireng dan daun kelor berpengaruh nyata dalam menghambat perkecambahan spora Peronosclerospora sp., memperpanjang masa inkubasi, menekan intensitas penyakit bulai dan meningkatkan pertumbuhan tanaman jagung.  Interaksi antara ekstrak tanaman dan  isolat Streptomyces sp. hanya perpengaruh nyata dalam memperpanjang masa inkubasi penyakit bulai tanaman jagung.  Ekstrak tanaman dapat menekan intensitas penyakit bulai dan pertumbuhan tanaman jagung sedangkan Streptomyces tidak berpengaruh.
Pengaruh Campuran Octane Booster pada Pertalite Terhadap Konsumsi Bahanbakar dan Emisi Gas Buang pada Honda Beat ESP 110cc
Authors: Pratama Harris Yudha , Lapisa Remon , Milana  , Wagino
Published: August 2023

Cukup banyak pengguna sepeda motor yang tidak mengetahui bahan bakar apa yang sesuai pada kendaraan yang digunakan. Perbandingan rasio kompresi dengan pemilihan bahan bakar sangatlah penting untuk mencegah dari pembakaran dini. penggunaan zat aditif octane booster sebagai campuran bahan bakar memiliki pengaruh terhadap konsumsi bahan bakar dan emisi gas buang pada sepeda motor. Penelitian ini bertujuan untuk mengetahui pengaruh pemakaian octane booster campur Pertalite terhadap konsumsi bahan bakar dan emisi gas uang pada sepeda motor Honda beat Esp 110cc tahun 2020 dengan menggunakan, metode eksperimen yang dilakukan di workshop sepeda motor Teknik Otomotif Fakultas teknik Universitas Negeri Padang. Teknik pengumpulan data pada penelitian ini dilakukan dengan cara mengumpulkan data secara langsung pada tabel penelitian dari sepeda motor Honda Beat Esp 110cc tahun 2020 dan teknik analisis data yang digunakan ialah menggunakan teknik pareto optimal. Berdasarkan hasil penelitian yang telah dilakukan dapat disimpulkan bahwa Campuran bahan bakar pertalite dengan zat aditif octane booster tidak dapat mengurangi laju konsumsi dan malah membuat laju bahan bakar meningkat dan Emisi yang dikeluarkan menurun seiring ditambahnya campuran zat aditif octane booster.  
Numerous motorcyclists do not know which gasoline is appropriate for their vehicles. It is vital to compare compression ratio with fuel selection to prevent premature combustion. The use of octane booster additives in motorcycle gasoline mixtures affects fuel consumption and exhaust emissions. This investigation employed an experimental approach in a motorcycle workshop at Padang State University's Automotive Engineering, Faculty of Engineering. The 2020 Honda Beat Esp 110cc motorcycle was used to collect data immediately in the research table, and the pareto optimal technique was utilized for data analysis. Based on the research conducted, it can be concluded that the addition of octane booster additives to pertalite fuel has no effect on the consumption rate, but rather increases the fuel rate and decreases emissions.
La pinacoteca literaria de Abraham Valdelomar y Revalorización del Artista Peruano
Authors: TAPIA  PAREDES FRANCISCA ELSA
Published: August 2023

Este artículo reproduce parcialmente la tesis:  Las obras de arte en la literatura: Indicios de identidad artístico cultural en los textos de Abraham Valdelomar y de José María Eguren. Su objetivo,  enfocar a los artistas y objetos o artefactos visuales con función estética que Valdelomar menciona profusamente en sus textos. El método indiciario fue útil para ubicar, recopilar y ordenar en listas los nombres propios de artistas y títulos de cuadros.  A esos datos nominales en soporte literario y agrupados por cuantificación se les rotuló pinacoteca literaria. Los resultados de la aplicación metódica revelan la composición de la pinacoteca literaria del Conde de Lemos: 174 artistas visuales, entre ellos los caricaturistas franceses. La lista cuantificada de catorce (14) pintores la encabeza el peruano Merino, y la integran Velázquez, Leonardo, Goya, Murillo, La Gándara, Málaga Grenet (caricaturista peruano), Rubens, Fra Angelico, Boldini,  Hogarth, Gosé y Baca Flor (peruano). Esta relación se complementa con la mención de quince(15) obras pictóricas. Entre las mencionadas destacan: La Gioconda; Venus del Espejo, Duque de Olivares, Las Hilanderas,  Los caballos de Velázquez, Los Caprichos (Goya), seis cuadros de Hogarth, un cuadrito de Raemaekers, Las tres gracias (Rubens), El Angelus. En conclusión, por la presencia de artistas peruanos entre los europeos,  esta pinacoteca literaria permite confirmar el mundonovismo o nativismo artístico moderado de Valdelomar y, por la mención de los caricaturistas (incluyendo a Goya y a Hoghart), los referentes de su vocación gráfica.
Ensino on-line emergencial num contexto de crise provocada pela covid-19: vivências de professores da educação básica em Alagoas
Authors: Santos Weider Alberto Costa , Mercado Luis Paulo Leopoldo
Published: August 2023

A pandemia de covid-19, deflagrada em março de 2020 à sociedade, constituiu-se num cenário atípico e abrupto à educação. Em virtude do isolamento e distanciamento social, a escola precisou adequar os seus processos educativos a um contexto distanciado da sua realidade metodológica, lançando-se às soluções massivas de tecnologias digitais de informação e comunicação (TDIC) ancoradas no ensino on-line emergencial (EOE). Nesse contexto, a busca por vivências dos professores em tempos de covid-19, diante dos desafios da cultura digital, revelou “nuances” sociais e de formação docente limitantes ao ideário de educação para o século 21. Nessa conjuntura, este estudo qualitativo, apoiado na teoria fundamentada de caráter descritivo, investigou como os professores da educação básica das redes pública e privada em Alagoas, nas etapas de ensino fundamental e médio, vivenciaram o EOE num cenário de crise provocada pela covid-19 em 2020, demarcando os desafios e as limitações. A pesquisa foi realizada com 237 professores, por meio de questionários semiestruturados, aplicados entre abril e julho de 2020, os quais analisaram as seguintes categorias: “equidade digital”, “recursos escassos” e “formação para a utilização das TDIC”. Por conseguinte, a investigação pôde inferir que os desafios e as limitações foram acentuados pelo anacronismo metodológico e pela condição social de estudantes e professores. Além disso, os impactos da pandemia sobre a educação podem repercutir possíveis alterações dos espaços escolares e processos educativos.
Nematicidal Properties of Chitosan Nanoformulation
Authors: Mouniga R. , Anita B. , Lakshmanan A. , Shanthi A. , Karthikeyan G.
Published: August 2023

Chitosan is the second most abundant bio-polymer available in the world, second only to cellulose. It is found in crustaceous shells, e.g., those of crabs, shrimps, prawns, and fungi, as well as insect exoskeletons. The use of nanoformulations for the management of pests and diseases is receiving increased interest with the advancement of nanotechnology. Here, chitosan nanospheres were obtained from chitosan using the ionic gelation technique. The nanoformulations obtained were characterized using a particle size analyzer, Fourier transform infrared spectroscopy, and a transmission electron microscope. The efficacy of chitosan nanospheres in suppressing the root-knot nematode Meloidogyne incognita was studied. The particle size of nanospheres formulated for this study was 380.2 nm, with a polydispersity index (PI) of 0.4 and Zeta potential of 45.7 or 50.9 mV at pH 5.2. The chitosan nanospheres were spherical and the particles did not agglomerate. FTIR spectra of the chitosan nanospheres peaked at 3334 cm−1, thereby indicating the stretching of the OH and NH group. In In-vitro studies, chitosan nanospheres showed significant nematicidal activity against M. incognita. Under pot culture conditions, chitosan nanospheres (1%- active compound chitosan) at 2ml/plant decreased the nematode population in roots or soil. Compared to the control, the number of galls was reduced by 83.68%, the number of egg masses by 83.85%, the number of adult females by 66.56%, and the number of second-stage juveniles by 73.20%. In a field experiment, application of chitosan nanospheres (1%) was followed by a 18.75% increase in fruit yield compared to the non-treated control.