bluuebunny/crossref_metadata_2025 huggingface dataset:
Validação de constructo e experiência de uso de um simulador de artroscopia de ombro de baixo custo
Authors: Dau Leonardo , Almeida Paula Adamo , Kulcheski Alynson Larocca , Milcent Paul Andre , Filho Edmar Stieven
Published: October 2023

Objetivo Validar o modelo de baixo custo para treinamento em artroscopia e analisar a aceitação e utilidade do simulador desenvolvido no ensino e treinamento médico.

Método Dez acadêmicos do curso de medicina, dez residentes do terceiro ano em ortopedia e dez cirurgiões de ombro realizaram tarefas pré determinadas em um simulador de ombro duas vezes. Os parâmetros utilizados foram o tempo para completar as tarefas, quantidade de olhares para as mãos, escore de GOALS (Global Operative Assessment of Laparoscopic Skills) e comparados entre os grupos e intragrupos. Uma escala de Likert adaptada foi aplicada abordando as impressões dos indivíduos acerca do simulador e de sua aplicabilidade.

Resultados Na comparação intergrupos, os cirurgiões de ombro tiveram melhores escores e tempos que os demais grupos. Quando as tarefas foram repetidas, o grupo de cirurgiões, teve uma melhora de 59% no tempo (p < 0,05), assim como no grupo de acadêmicos. No escore de GOALS os cirurgiões de ombro apresentaram escores consistentemente melhores que os demais grupos. E quando avaliamos a evolução do primeiro para o segundo teste, o grupo de cirurgiões e o grupo de acadêmicos tiveram melhora estatisticamente significante (p < 0,05). No quesito de lookdowns houve diminuição em todos os grupos. Houve consenso em que o simulador é útil no treinamento.

Conclusão O simulador desenvolvido permitiu a diferenciação entre indivíduos com diferentes níveis de treinamento em cirurgia artroscópica. Foi aceito por 100% dos participantes como uma ferramenta útil no treinamento cirúrgico artroscópico do ombro.
Caracterização da membrana induzida pela técnica de Masquelet em modelo murino de defeito ósseo segmentar
Authors: Guimarães João Antonio Matheus , Scorza Breno Jorge Braga , Machado Jamila Alessandra Perini , Cavalcanti Amanda dos Santos , Duarte Maria Eugênia Leite
Published: October 2023

Objetivo Reproduzir em modelo animal a técnica cirúrgica de Masquelet utilizada no tratamento de defeitos ósseos críticos e analisar as características da membrana formada em torno do cimento ósseo.

Métodos Um defeito crítico de 10mm foi realizado na diáfise femoral de 21 ratos Sprague-Dawley. Após a ressecção da porção central da diáfise o defeito foi estabilizado com fio de Kirschner introduzido pelo canal medular e com a interposição de espaçador de cimento ósseo. Após 2, 4, e 6 semanas do procedimento cirúrgico os animais foram eutanasiados e avaliados em radiografias do membro posterior quanto ao tamanho do defeito, o alinhamento e a estabilidade da osteossíntese. As membranas formadas em torno do espaçador foram submetidas a análise histológica para avaliação da espessura, da maturação do tecido conjuntivo e da densidade vascular.

Resultados Ao longo do tempo as membranas inicialmente constituídas por tecido conjuntivo frouxo foram substituídas por membranas representadas por tecido conjuntivo denso, rico em fibras colágenas espessas. Com seis semanas a espessura das membranas foi maior (565 ± 208μm) do que com quatro (186,9 ± 70,21μm, p = 0,0002) e duas semanas (252,2 ± 55,1μm, p = 0,001). Todas as membranas do tempo inicial apresentaram focos de diferenciação osteogênica que reduziram progressivamente ao longo do tempo.

Conclusão Além da função estrutural e protetora da membrana, suas características biológicas intrínsecas podem contribuir ativamente para a regeneração óssea. A atividade biológica atribuída pela presença de focos de osteogênese confere à membrana potencial de osteoindução que favorece as condições locais para a integração do enxerto ósseo.
Assessment of Learning Style Preferences of Saudi Nursing Students
Authors: Mariano Maria E.M. , Woodman Alexander , AlNaam Yaser , Al-Jamea Lamiaa H. , Al-Ansari Rehab Y. , Quiambao Jenifer V.
Published: October 2023

Objective In line with global trends, growing number of educational institutions in Saudi Arabia are developing their curricula based on the feedback and suggestions from their students to help improve the quality of teaching. This study aims to assess the differences in learning style preferences among female nursing students of Saudi Arabia.

Methods This cross-sectional study included 124 female nursing students who were asked to answer the culturally adapted Arabic version of visual, aural/auditory, read/write, and kinesthetic (VARK) survey. Data were analyzed with SPSS, version 23. The Wilks' lambda or multivariate analysis (MANOVA) was used to determine the relationship between the participants' learning preferences, sociodemographic characteristics, and year of study.

Results Nursing students who had visual learning preferences had a significantly different learning style as compared to those who preferred aural and kinesthetic learning (p < 0.001). On the contrary, there was not enough evidence to conclude that the same was true for students who preferred to read/write.

Conclusions Further research is required to explore the relationship between learning style preferences and learning outcomes with the inclusion of a larger sample size and representatives of two genders, males and females. The findings of the current research provide the foundation for adaptive learning by identifying the individual preferences in learning among the nursing students.
Precoce ou tardio? O protocolo de reabilitação mais adequado para lesão na região ‘terra de ninguém’: Metanálise com análise sequencial de ensaios – Tendências de 20 anos
Authors: Setiawan Celleen Rei , Karna Made Bramantya
Published: October 2023

Objetivo O objetivo deste estudo é analisar vários protocolos de reabilitação e determinar quais métodos produzem um melhor resultado.

Métodos Os relatórios dos bancos de dados foram pesquisados entre 1990 e 2020, usando PubMed, banco de dados da biblioteca Cochrane, Ovid, Medline e vários outros ensaios publicados. Uma análise estatística foi feita a partir do Review Manager e Trial Sequential Analysis (TSA).

Resultado A taxa média de re-ruptura é de 3,3% (n = 8) no protocolo combinado, e até 8% (n = 48) no protocolo de Movimento Ativo Controlado (MAC). As metanálises não encontraram diferença significativa entre Kleinert vs MAC na taxa de re-ruptura. Também não há diferença significativa entre Duran e MAC na taxa de re-ruptura. Na Trial Sequential Analysis (TSA), a curva z não cruza ambos os limites sequenciais de ensaio, será necessário um ensaio adicional com amostra maior. A TSA de contratura em flexão MAC vs Kleinert indicou que o protocolo MAC pode ser superior ao Kleinert para reduzir a incidência de contratura em flexão. Para a faixa de contratura média em flexão de 6,6% (n = 18) no MAC a 23,6% (n = 76) no protocolo Kleinert.

Conclusão A metanálise atual propôs que a técnica combinada resultará em menor incidência de re-ruptura e melhor resultado funcional em lesões da zona flexora II do que outras técnicas. O método MAC também resulta em menos contratura em flexão do que outros. No entanto, serão necessárias mais metanálises com estudos com amostras maiores para confirmar a conclusão desta revisão.
Ligamento meniscotibial medial do joelho: Uma dissecção passo a passo
Authors: Neto Jonatas Brito de Alencar , Cardoso Alexia Barros , Munhoz Gerônimo de Souza , Neto Luiz Holanda Pinto , Clazzer Renata , Ariel de Lima Diego
Published: October 2023

Objetivo Considerável atenção tem sido dada aos ligamentos meniscotibiais (LMT), também conhecidos como ligamentos coronários, especialmente depois que a iniciativa “Salve o Menisco” ganhou importância entre os cirurgiões de joelho. Tecnicamente desafiadores, o diagnóstico e o tratamento da lesão em rampa são importantes nos LMTs. Esses ligamentos foram descobertos há muito tempo, mas sua contribuição para a estabilidade do joelho foi recentemente estudada e ainda carece de informações. Assim, o objetivo deste estudo foi descrever passo a passo uma técnica de dissecção medial do LMT que é eficiente, reprodutível e que possa levar a novas pesquisas.

Métodos Foram utilizados 20 joelhos de cadáveres frescos, sem preferência por sexo ou idade. Os joelhos foram dissecados com a mesma técnica padronizada por nossa equipe. Cada etapa da dissecação foi gravada digitalmente.

Resultados O LMT medial foi encontrado em todos os 20 joelhos estudados com a técnica supracitada. Em nossa amostra, o LMT medial apresentou comprimento médio de 70,0 ± 13,4 mm e largura de 32,25 ± 3,09 mm, além de espessura de 35,3 ± 2,7 mm e peso de 0,672 ± 0,134 g. Em todos os casos, a origem do LMT medial era proximal e profunda em relação ao LMT profundo na tíbia.

Conclusão Descrevemos uma técnica de dissecção simples do LMT medial que é eficaz, reprodutível e permite a identificação do ligamento em toda a extensão medial do joelho.
Housing prices and household consumption: a threshold effect model analysis in central and western China
Authors: Zheng Huazhu , Qian Jiao , Liu Guihuan , Wu Yongjiao , Delang Claudio O. , He Hongming
Published: October 2023

The relationship between housing prices (HP) and household non-housing consumption (CON) is a key topic worldwide. By developing a panel threshold model and utilizing data from 18 provinces in central and western China from 2005 to 2020, this study investigates the impact of housing prices on household non-housing consumption given housing credit constraints. The results show that (1) housing credit constraints play a single threshold role in the impact of housing prices on household non-housing consumption; (2) the elasticity of housing price fluctuation on household non-housing consumption was negative in the western region during the entire sample period, and the elasticity of housing price fluctuation on household non-housing consumption decreased when housing credit constraints exceeded its threshold value; (3) the effects of housing price fluctuation on household non-housing consumption in the central region changed from negative to positive when housing credit constraints exceeded its threshold value. These outcomes implies that housing credit constraints are not a factor driving a low household non-housing consumption rate in the studied regions. Importantly, our findings suggest that unaffordable housing prices and homeownership linked to better public education resources in combination were a key factor leading to a low non-housing consumption rate in the studied regions. The main contribution of this paper is to supplement the current academic research on low levels of consumption in underdeveloped regions of China and the impact of housing prices on consumption.
Wine, Tourism and Translation
Authors: Castellano Martínez José María
Published: October 2023

This chapter aims to analyse the promotional tourist texts
motivated by wine consumption focused on tourists. These texts, considered
as communicating units in translation, acquire a special value when the
framework of meanings and images are developed in tourist contexts such as
the enotourism –a context in another context–. According to this, we study
the Turespaña brochure “Wine routes around Spain” (Rutas del vino
por España) and its linguistics versions in four different
languages (French, English, German and Spanish). Once the peripherical and
the core texts of the document have been analysed, we point out the most
relevant translatological divergences among the linguistic versions, paying
special attention to the translation techniques that can be appreciated by
comparing the texts. To conclude, this work outlines how the enotourist
texts can be considered of a certain degree of specialization because of the
context where it is inscribed in terms of communication and translation.
Agro-legal documents
Authors: López Ingrid Cobos
Published: October 2023

Textual hybridity has been approached from different perspectives
and studied by authors from different disciplines. In this sense, if we
focus on the perspectives that understand textual hybridity as the
confluence of different disciplines in a single text, the multidisciplinary
nature of the text itself is revealed, providing it with a new dimension and
study on which many researchers focus nowadays. For example, in the field of
Translation, most of the research papers focus on medical-legal texts, which
have the characteristics of both disciplines –Medicine and Law–. In the
present work, we intend to study the confluence of Law and Agri-food in
agro-legal genres in the wine sector as studied in the research project
WeinApp. Therefore, we will concentrate on and analyse the European
Decisions about Wine.
Word composition and specialized translation (German-Spanish)
Authors: Almansa Isidoro Ramírez
Published: October 2023

This work focuses on the translation of vitiviniculture
terminology and its translation from German into Spanish. To do this, we
first address the two main word composition processes in German: compounding
and derivation. Then, we compile a text corpus with vitivinicultural terms
in the German language. This corpus is composed of texts which represent
several degrees of specialization. Later on, we extract the vitiviniculture
terminology from the text and examine if any word composition process was
used to create the term. Finally, we analyse the different units within the
term, and from this analysis, we propose the translation of the term into
Spanish.
Welfare Considerations of Brachycephalic Ocular Syndrome in Dogs
Authors: Nutbrown-Hughes David
Published: October 2023

Small brachycephalic dog breeds have had a recent period of popularity. Brachycephalic Ocular Syndrome (BOS) is a term used to describe the many ocular problems these breeds suffer from, largely as a result of their conformation. The exact presentation of BOS is often breed dependent but corneal health is often poor in the affected animals. When treating corneal disease in these breeds, attention must be given to correcting the underlying causes, the eyelids, cornea and tear film need to be thought of as one entity. Medial canthoplasty is the usual surgical treatment to improve facial conformation, but support of the tear film and correction of aggravating factors such as ectopic cilia and distichiasis may be required. As well as the treatment of individual cases, the development of guidelines and potential legislation to encourage the breeding of dogs with less extreme conformation is desirable. Public information plays an important role in educating the public on the problems associated with these breeds so they can think carefully before purchasing one and should they do so, what care they require.

Information

© The Author 2023
Developing system arrays for new experimental approach in nuclear astrophysics
Authors: Guardo G.L. , Lattuada D. , Petruse T. ,   ASFIN & ELISSA collaborations
Published: October 2023

The advent of facilities providing high-intensity and high-resolution gamma ray beams and/or ultra-short and high-repetition laser pulses can potentially open a new path of astrophysical research. Indeed, a pencil size gamma beams with tunable energies from few keV up to tens MeV will offer distinctive chances to conduct precise measurements of small cross sections (on the scale of μb or even smaller) pertaining to nuclear reactions in the field of astrophysics. Consequently, it provides essential data for modeling astrophysical S-factors crucial to stellar evolution. On the other hand, the possibility to mimic the stellar conditions by laser-matter interaction generating a controlled laboratory plasma with thermodynamical status not too different from stellar conditions will open the way for the study of nuclear reactions of utmost importance for nuclear astrophysics.

For photonuclear reactions with astrophysical significance, as photodissociations occur at photon energies slightly above particle emission thresholds due to typical stellar temperatures, the resulting fragments possess low energies spanning from a few hundred keV to a few MeV. Consequently, detectors with low thresholds become imperative in such cases. Also, in the case of laser-induced reactions, in order to detect the fusion products and to measure the laser-accelerated ion distribution a proper system of detection is needed. Depending on the available exit channels of the nuclear reaction of interest, both charged particles and neutrons are foreseen.

Here, we present the Asfin’s efforts on developing new detectors arrays suitable for the experimental requirements in these challenging measurements. Indeed, an experimental campaign is ongoing in order to test the feasibility of excitation functions and angular distributions determinations using versatile silicon strip arrays (namely LHASA and/or ELISSA). Moreover, extensive studies and simulations will be presented regarding the developing of a dedicated detection system comprising a cryogenically cooled supersonic nozzle, an appropriate interaction chamber, an array of neutron and charged particle detectors and two compact ion spectrometers for performing systematic study of laser-induced nuclear fusion reactions.
Heavy
Ξc/b
and
Ξc/b′
baryons in the quark model
Authors: Ortiz-Pacheco E. , Bijker R.
Published: October 2023

We present a study of the low-lying

Ξ

c
/
b

and

Ξ

c
/
b

′

baryon states based on masses, strong and radiative decays. In a harmonic oscillator quark model analysis it is found that the majority of the detected states can be interpreted as S- and P-wave excitations.
Optimization of BeO formation parameters for the measurement of 10Be by AMS.
Authors: Romero L. R. , Ramírez-Martínez C. J. , Méndez-García C. G. , Padilla S. , Solís C. , Huerta H.
Published: October 2023

10Be has been widely studied over the last few years. The sensitivity offered by the Accelerator Mass Spectrometry technique (AMS) expands the efficient detection of 10Be by 4-5 orders of magnitude. The chemical species most used in the measurement of 10Be by AMS is beryllium oxide (BeO), which has been shown to offer the best conditions for measurements. In this work, several parameters in the BeO formation have been analyzed. The results show the efficiency of the protocol used but suggest that using Ag instead of Nb as a conductor could improve the measurement conditions.
Description of the low-mass meson-like spectrum in non-perturbative QCD
Authors: Yépez-Martínez Tochtli , Hess Peter O. , Civitarese Osvaldo
Published: October 2023

In this work we shall explore the identification and use of effective degrees of freedom, for the description of the non-perturbative regime of QCD. The starting Hamiltonian is the effective Coulomb plus linear potential. In order to build the spectrum of effective quark degrees of freedom, starting from arbitrary chosen quark masses, we shall pre-diagonalized the Hamiltonian. Then, we shall include quark-pair correlations and treat them by applying Bogoliubov transformations. The resulting quasiparticle excitations are then used to construct non-interacting two quasi-quark states with energies up to 2 GeV, which are compared to the observed meson-like states in the same energy domain.
Muon energy reconstruction for applications in neutrino astronomy in the DUNE far detector
Authors: Singh Jaydip ,   the DUNE collaboration
Published: October 2023

DUNE (Deep Underground Neutrino Experiment) is a proposed long-baseline neutrino oscillation experiment located in the United States. The main physics objectives of DUNE are to measure neutrino oscillations and interactions, search for nucleon decay, observe supernova neutrino bursts and beyond Standard Model (BSM) effects. The DUNE far detector will be located 4850 feet underground at the Sanford Underground Research Facility in Lead, South Dakota. It will house the world's largest liquid-argon time projection chambers (TPC). The DUNE far detector can detect high-energy leptons that arise from interactions of cosmogenic neutrinos and search for neutrinos originating from the decay of weakly-interactive massive particles (WIMPs) annihilations occurring inside the Sun. Selecting upward-going muons reduces the background from cosmic-ray muons. The muon energy is estimated from the electromagnetic showers accompanying the muon, a technique that allows energy reconstruction up to a few hundred TeV.
Ecosystem vulnerability to extreme climate in coastal areas of China
Authors: Xia Xu , Shirong Qiao , Honglei Jiang , Tong Zhang
Published: October 2023

Climate change has far-reaching impacts on ecosystems and the frequency and intensity of extreme global climate events have been increasing over the past century; therefore, assessing ecosystem vulnerability to extreme climate change is critical for sustainable and adaptive ecosystem management. As a climatically sensitive region, coastal China is currently experiencing significant environmental changes. To identify how extreme climate affects ecosystem vulnerability, we calculated and analyzed the spatiotemporal variation in extreme climates, net primary productivity (NPP), and spatial characteristics of ecosystem vulnerability to extreme climate change, and discussed the response characteristics of different ecosystems to extreme climate events based on meteorological data and NPP (1986–2015). The results demonstrated that (1) coastal China has become increasingly warmer over the last thirty decades but the precipitation trend is different in the north and south: precipitation increased in the south and decreased in the north. (2) NPP is rising overall, with the forest ecosystem growing the fastest, particularly since 2010. (3) The ecosystem vulnerability of coastal areas in China is mainly classified as mild or non-vulnerable. However, there were apparent differences in the vulnerability of different ecosystems, with dry land and shrub ecosystems having the highest mean vulnerability. (4) The effects of extreme climates on the vulnerability of different ecosystems and ecosystems in different habitats vary. Overall, rising extreme temperatures can significantly increase the ecosystem vulnerability in the coastal areas of China. The paddy field ecosystem was more influenced by extreme temperatures than other ecosystems, with the southern paddy field ecosystem more influenced than the northern paddy field ecosystem. Our study advances the understanding of vegetation dynamics and their driving mechanisms and provides support for scientifically informed ecological management practices in coastal China.
Atmospheric elemental carbon pollution and its regional health disparities in China
Authors: Hang Yun , Meng Xia , Xi Yuzhi , Zhang Danlu , Lin Xiuran , Liang Fengchao , Tian Hezhong , Li Tiantian , Wang Tijian , Cao Junji , Fu Qingyan , Dey Sagnik , Li Shenshen , Huang Kan , Kan Haidong , Shi Xiaoming , Liu Yang
Published: October 2023

Previous studies have reported that atmospheric elemental carbon (EC) may pose potentially elevated toxicity when compared to total ambient fine particulate matter (PM2.5). However, most research on EC has been conducted in the US and Europe, whereas China experiences significantly higher EC pollution levels. Investigating the health impact of EC exposure in China presents considerable challenges due to the absence of a monitoring network to document long-term EC levels. Despite extensive studies on total PM2.5 in China over the past decade and a significant decrease in its concentration, changes in EC levels and the associated mortality burden remain largely unknown. In our study, we employed a combination of satellite remote sensing, available ground observations, machine learning techniques, and atmospheric big data to predict ground EC concentrations across China for the period 2005–2018, achieving a spatial resolution of 10 km. Our findings reveal that the national average annual mean EC concentration has remained relatively stable since 2005, even as total PM2.5 levels have substantially decreased. Furthermore, we calculated the all-cause non-accidental deaths attributed to long-term EC exposure in China using baseline mortality data and pooled mortality risk from a cohort study. This analysis unveiled significant regional disparities in the mortality burden resulting from long-term EC exposure in China. These variations can be attributed to varying levels of effectiveness in EC regulations across different regions. Specifically, our study highlights that these regulations have been effective in mitigating EC-related health risks in first-tier cities. However, in regions characterized by a highconcentration of coal-power plants and industrial facilities, additional efforts are necessary to control emissions. This observation underscores the importance of tailoring environmental policies and interventions to address the specific challenges posed by varying emission sources and regional contexts.
Soil-structure interaction of Huge RC Box Culvert under High Embankment
Authors: Sukamta Davy , Rahardjo P P , Alexander Nick , Wijaya M
Published: October 2023

Two huge RC concrete box culverts are constructed underneath the Dhoho Kediri airport runway embankment. These multi-cell culverts serve as the main infrastructure facilitating the diversion of two crossing rivers and several irrigation channels, and one of them is under 24-meter-high fill, penetrating the slope at a skewed angle and creating huge unbalanced soil pressure. The seismic design loads for underground structures are characterized in terms of the deformations and strains imposed on the structure by the surrounding soil. Soil-structure interaction plays an important role in defining static and seismic loads. Finite element method with dynamic time history analysis considering three selected and modified ground motions has been performed for the seismic design of the RC box culverts, in addition to the racking deformation method. A comparison of both methods is presented.
Mapping landslide events at Cameron Highlands, Malaysia in relation to land use, rainfall and elevation using Geographical Information System
Authors: Abidin R Zainal , Mahamud M A , Abdullah J , Mohd Kasim M Z , Yusof M F , Arif Zainol M R R Mohd
Published: October 2023

The Cameron Highlands as the name implies is subjected to high landslide vulnerability due to its geographical location in a hilly area. The principal factors contributing to the landslide events in Cameron Highlands have been identified as heavy rainfall and substantial land use changes, which include infrastructural development and agricultural practices. Thus, there is a need to map the landslide events that occurred in Cameron Highlands using Geographical Information Systems concerning rainfall, land use and elevation. The relevant data were collected from the Department of Irrigation and Drainage Malaysia, the Department of Town and Country Planning Malaysia, and the Public Works Department Malaysia. Based on the findings, with the average annual rainfall exceeding 2,687mm, massive agricultural activities on hilly terrain and infrastructure development along the main road, confirmed the occurrence of landslide events in Cameron Highlands. In addition, most of the landslide events occur at an elevation of more than 1,800m above sea level. By knowing the respective locations of previous landslide events, local authorities will be able to take earlier precautions in mitigating and planning future development related to agricultural activities and infrastructure besides providing early warning and useful information to the public at large.
Effects of Prior Footprints on the Bearing Capacity of Spudcan Foundations: A Case Study
Authors: Hendriyawan  , Anggara Vebrian , Tami Denny , Hamdhan Indra Noer , Rildova  , Bakti Farid P.
Published: October 2023

A jack-up rig is a self-elevating offshore drilling platform designed for mobile operations in the marine environment. The rig is supported by 3 or 4 legs, with spudcan foundations at the end. These spudcan provide the necessary stability and load-bearing capacity for rig foundation during drilling operations. The mobile rig sometimes revisits sites where prior installation, operation, and extraction activities have resulted in identifiable footprints on the seabed. The penetration of spudcan close to, or partially overlapping, footprints shall be carefully considered because the spudcan-footprint interaction may cause a change in the ultimate vertical bearing capacity (Fv). ISO 19905-1:2016 states that the interaction between a spudcan and a footprint is expected to be minimal when the edge-to-edge distance exceeds one spudcan diameter. This paper presents the effect of existing footprints on the vertical bearing capacity of a spudcan with various spacing variations from 0.5B to 1.75B, where B is the diameter of the spudcan. A 3D finite element method (3D FEM) is employed as the primary analysis tool in analyzing the effects of footprints on layered clay soil. The 3D FEM analysis is conducted because the analytical approach outlined in ISO 19905-1:2016 does not consider the influence of the footprint on the spudcan capacity. The analysis results show that bearing capacity may reduce by more than 50% when the center-to-center distance is less than 1B. Whereas, for distances greater than 1.5B, the influence of the footprint is relatively insignificant, only reducing less than 10% of the ultimate capacity of the spudcan.
Scale-Up Soybean Crude Urease Calcite Precipitation (SCU-CP) Method for Sandy Soil Improvement
Authors: Oktafiani P G , Putra H , Erizal  , Sutoyo
Published: October 2023

Loose sandy soils tend to have low shear strength; thus, improving the mechanical properties is necessary to enhance the bond of soil grains. Adding an additive that will form a bonding agent, i.e., calcite, within the soil to increase the strength of the soil is a relatively novel technique. Soybean Crude Urease Calcite Precipitation (SCU-CP) is a soil improvement method that utilizes soybeans as a catalyst for calcite formation in the reaction of urea and CaCl2. This study aims to evaluate the efficacy of SCU-CP in the large-scale application in terms of the distribution of calcite and its impact on the behavior of the California Bearing Ratio. A soil sample made with a 1-m acrylic mold with a 5cm diameter and a drum test with a height and diameters of 50 cm and 60 cm, respectively. The results in a percentage distribution of material vertically on a 1-m acrylic mold and horizontally on a 60 cm diameter drum with an even distribution. The average percent spread is 3.96% in the mold and 7.19% in the drum-test even distribution of strength, where the average CBR result is 1.40 on the seventh day. This study concluded that the SCU-CP method with the pouring technique has a promising approach for real-field application.
Growth of different moringa variety as rehabilitation plant material on marginal land
Authors: Hadid A , Toknok B , Wardah  , Syakur A
Published: October 2023

Moringa plants are able to adapt to extreme dry conditions and on low-fertility soils, so it is very conditional to be planted on marginal land rehabilitation. However, the main obstacle in the development is the availability of plant material that is ready for planting in large quantities. The objective of this study is to assess the growth of various varieties of moringa seedlings in various conditions of the growing environment so that they may be even more adaptive on marginal lands. The study was conducted on community-owned land in Pangi Village, North Parigi District, Parigi Moutong Regency, using a factorial randomized block design (RBD), which consists of three factors, namely variation in variety, variations in growing medium and variations in shading intensity. The results showed that there was an interaction between treatments on the observed parameters of plant height and number of leaves. The best on moringa seedling height is the rough yellow stems which is seeded on beach sandy soil under shading intensity of 75%. Whiles the parameters of the number of leaves of moringa seedlings that are able to form the most leaves are green gray stem varieties on beach sandy soils under shading intensity of 25%.
Influence of toposequence on soil quality of sugarcane plantation area in Bombana Regency, Indonesia
Authors: Herniyanti A , Suleman D , Namriah  , Ginting S , Alam S , Yusuf D N , Resman
Published: October 2023

The intensive land use across the toposequence of sugarcane plantation has the potential to reduce soil quality, particularly due to the hazardous effect of erosion. Therefore, it is necessary to periodically evaluate the physical and chemical properties of the soil. The study was performed on Inceptisols in a sugarcane plantation area and aimed to investigate the effect of topography on soil quality. The soils sample were taken across the physiographic position (i.e., upper, middle, and bottom) of the study area. Nine soil samples were collected at 0-20cm depth, then composited into three samples according to the toposequence and analyzed using standard procedures. Among all the soil properties, texture, pH, organic-C, total-N, available P, and K were varied along the toposequence. It was observed a moderate soil quality index (SQI) at the bottom and upper of study site with a value of 0.54 and 0.44, respectively. Meanwhile, the low SQI was noted at middle (0.36). In the present study, the most crucial factors determining the variation in SQI were the soil texture, organic-C, and soil pH. The finding suggests the need of appropriate land use strategies and sustainable soil management practices to improve soil conditions in sugarcane plantation areas.
Application of liquid micro compound fertilizer to increase yield and agronomic feasibility of sweet corn
Authors: Arifin Zainal , Aisyawati Lina , Anggraeni Listy , Krismawati Amik , Baswarsiati  , Purbiati Titiek
Published: October 2023

The objective of the research was to determine the appropriate dosage of liquid micro-compound fertilizer on crop yield and agronomic feasibility of sweet corn. This research was carried out in Mojokerto District on DS 2021, using of plot 4 m x 5 m with 10 treatments, using RBD, repeated 4 times. The treatment of liquid micro compound fertilizer (LMC), namely A. 0 kg.ha−1 Urea + 0 kg.ha−1 ZA + 0 kg.ha−1 NPK + 0 l.ha−1 LMC (control), B. 200 kg/ha Urea + 100 kg.ha−1 ZA + 275 kg.ha−1 NPK + 0 l.ha−1 LMC (standard), C. 200 kg.ha−1 Urea + 100 kg.ha−1 ZA + 275 kg.ha−1 NPK + 5 l.ha−1 LMC, D. 200 kg.ha−1 Urea + 100 kg.ha−1 ZA + 275 kg.ha−1 NPK + 10 l.ha−1 LMC, E. 200 kg.ha−1 Urea + 100 kg.ha−1 ZA + 275 kg.ha−1 NPK+15 l.ha−1 LMC, F. 200 kg.ha−1 Urea + 100 kg.ha−1 ZA + 275 kg.ha−1 NPK + 20 l.ha−1 LMC, G. 150 kg.ha−1 Urea + 75 kg.ha−1 ZA + 200 kg.ha−1 NPK+5 l.ha−1 LMC, H. 150 kg.ha−1 Urea+75 kg.ha−1 ZA+200 kg.ha−1 NPK+10 l.ha−1 LMC, I. 150 kg.ha−1 Urea + 75 kg.ha−1 ZA + 200 kg.ha−1 NPK + 15 l.ha−1 LMC, and J. 150 kg.ha−1 Urea + 75 kg.ha−1 ZA + 200 kg.ha−1 NPK + 20 l.ha−1 LMC. The results showed the application of 5 l.ha−1 LMC fertilizer combined with Urea 200 kg.ha−1 + ZA 100 kg.ha−1 + NPK 275 kg.ha−1 (treatment C) obtained the highest cob cornhusks weight of 13.66 t.ha−1 with RAE 120% and R/C ratio 3.13.
Effectiveness of multiple culture of arbuscular mycorrhizal fungi (AMF) from the rhizosphere of cocoa on host plant Pueraria javanica
Authors: Lapanjang I , Zakaria E , Edy N , Barus HN
Published: October 2023

The utilization of single Arbuscular Mycorrhizal Fungi (AMF) is constrained by the propagation of the single spore and usually depends on the host plant. This study aims to examine the effectiveness of single culture propagation of several genera of AMF from the rhizosphere of cocoa and the concentration of NPK on the host Pueraria javanica. The study was designed with a completely randomized design with two factors. The first factor was the genus FMA which consisted of Acaulospora sp1 (M1), Acaulospora sp2 (M2), Glomus sp1 (M3), Glomus sp2 (M4), Glomus sp3 (M5). The second factor was that the concentration of liquid fertilizer was five levels: control (P0), 0.5g/l water (P1), 1.0g/l water (P2), 1.5g/l water (P3), 2.0g/l water (P4), and repeated four times. Parameters observed: root infection, spore number, main stem length, root length. The study showed that the highest number of spores resulted from the interaction of Acaulospora sp1 with 0.5g/l NPK. The most extended stem and root lengths were produced at 1.0g/l NPK with Acaulospora sp2, 27.40 cm, and 2.0 g NPK fertilizer with Acaulospora sp2, which had a root length of 8.8 cm. The highest colonization rate was found in plants not given NPK and infected with Glomus sp1. This study showed that the Pueraria Javanica plant is a suitable plant to be used as a host plant for the development of spore types Acaulospora and Glomous in single culture.
The application of several bioameliorant formulations to increase soil nutrient concentration and yields maize-soybeans intercropping flexible to climate change in suboptimal land North Lombok, Indonesia
Authors: Astiko W , Ernawati N M L , Silawibawa I P
Published: October 2023

Many maize and soybean plants are planted with an intercropping system on suboptimal land in North Lombok. However, this plant is sensitive to climate change, drought stress, and soil fertility. This study is aimed at determining the increased soil nutrient concentrations and yields in several applications of bioameliorant in maize and soybean intercropping on suboptimal land in North Lombok. A randomized block design was utilized for the experiment, and the five treatments for the bioameliorant formulation were F0: without bioameliorant, Formulas F1 and F2 for bioameliorants contain 10% compost, 10% cattle manure, 10% rice husk charcoal, and 70% mycorrhizal biofertilizer, 55% mycorrhizal biofertilizer plus 15% compost plus 15% cattle manure plus 15% charcoal husk, F3: bioameliorant composition comprising 40% mycorrhizal biofertilizer, 20% compost, 20% cattle manure, and 20% rice husk charcoal, 25% compost, 25% cattle manure, 25% rice husk charcoal, and 25% mycorrhizal biofertilizer make up the bioameliorant composition F4. The results showed that the number of mycorrhizal spores in the soil, the percentage of infected roots, the yield of maize and soybean intercropping, and the concentration of N, P, and K nutrients can all be increased by the bioameliorant formulation of 25% compost + 25% cattle manure + 25% rice husk charcoal + 25% mycorrhizal biofertilizer.
Shallot growth and production responses to application of microorganisms based-biostimulant and NPK fertilizer combinations on acid soil
Authors: Yuniarti E , Noviyanti E , Radiastuti N , Kosasih J , Aminah S , Suryadi Y , Susilowati DN
Published: October 2023

Shallot plants require attention because the demand for this high-value commodity is increasing, especially as Indonesia expands its cultivation over a large area of land. This study aimed to assess the potential of microorganism-based biostimulant formula doses and NPK combinations in promoting shallot growth and production in acidic soil. The experiment used an RCD with four treatments: P=control; P1=standard NPK (600 kg· ha1 urea, 250 kg·ha1 SP-36, and 175 kg·ha1 KCl); P2=3 ml L1 biostimulant + 3/4 standard NPK; and P3=5 ml L1 biostimulant + 3/4 standard NPK with four replications. The observed parameters were plant height, number of leaves and bulbs, as well as bulb fresh and bulb dry weights. The results showed that all treatments gave significantly different effects on all observed parameters. Treatment of P1, P2 and P3 showed a higher bulb’s number and dry weight than control. The P3 is an optimal treatment with a bulb number of 10.0 ± 2.2 per clump. This biostimulant formula is an eco-friendly, renewable, and promising technology for improving the growth and production of shallots in acidic soil.
Tropic soil properties and productivity of Shallot Lembah Palu variety
Authors: Thaha A R , Somba B E , Anshar M , Sartika D , Sukmawati St
Published: October 2023

This study aims to utilize data from soil analysis as a basis for plant nutrient management to increase the productivity of shallots of the palu valley variety. The first phase of the research was carried out using the survey method at 7 main locations of shallot development of the palu valley variety. The second phase of the study is a field experiment using a 2-factor factorial experiment. The first factor is the dose of chicken manure 10 tons ha−1 (O1) and 15 tons ha−1 (O2) while the second factor is 48 kg S ha−1 (H1), 72 kg S ha−1(H2), 100 kg KCl ha−1 (H3), and 200 kg KCl ha−1 (H4). The results showed that the dominant soil properties affecting low productivity were soil texture dominated by sand and dust fractions at all sites ranging from 64-89%, soil clay content ranging from 11-36%. Soil C-organic content is very low to low (0.67-1.79%), N-total soil is very low to low (0.04-0.16%). Available K2O (Morgan) levels are generally low (4.29-10.12 ppm) except for Tanamodindi and Poboya. The results of field experiments showed that the application of organic matter equivalent to 15 tons of ha−1 resulted in a fresh tuber weight of 10.94 tons ha−1 (O2), markedly higher than that of giving 10 tons of ha−1 which results in a fresh tuber weight of 9.67 tons ha−1 (O1). The use of KCl fertilizer at a dose of 200 kg ha−1 resulted in a fresh tuber weight of 12.35 tons ha−1 (H4), markedly higher than 100 kg KCl ha−1 (H3). 72 kg S ha−1 (H2) and 48 kg KCl ha−1 (H1).
Improvement of growth and yield of several varieties of soybean following paddy rice using Rhizobium biofertilizer with reduced NPK doses
Authors: Wangiyana W , Arianti D F , Ngawit I K
Published: October 2023

In paddy fields, soybean is generally planted following harvest of paddy rice crops, and the average yield achieved by farmers is still low. This study aimed to examine the effect of applying Rhizobium biofertilizer with reduced NPK fertilizer dose on growth and yield of soybean grown following flooded rice crop. The experiment, conducted on farmers’ paddy fields in East Lombok (Indonesia) from August to November 2020 was arranged according to Randomized Block Design, with two treatment factors, namely soybean varieties (Anjasmoro, Grobogan, Biosoy-2) and biofertilizers (P0= without biofertilizer, P1= 50% NPK dose + Rhizobium biofertilizer). The results showed that application of Rhizobium biofertilizer did not significantly increase growth and yield of soybean except for weight of 100 grains, but the significant interaction effect on trifoliate number, pod number, unfilled pod number, weight of 100 grains, harvest index, and grain yield indicated that grain yields of Grobogan (2.03 tons/ha) and Biosoy-2 (2.31 tons/ha) were significantly higher with biofertilizer application while that of Anjasmoro variety (2.83 tons/ha) was higher under recommended NPK fertilization doses. It was concluded that the NPK fertilizer dose can be reduced by 50% of the recommended dose if it is accompanied by application of Rhizobium biofertilizer.
Allocation of working time for integrated Bali cattle farmers in oil palm plantations, North Konawe Regency, Indonesia
Authors: Sani L O A , Hadini H A , Zuhri M , Munadi L O M , Kurniawan W , Tawai A
Published: October 2023

The study aimed to determine the characteristics of farmers and to calculate the allocation of family work time in the management of an integrated Bali cattle business in oil palm plantations to be carried out in October-December 2022 in Wiwirano District, North Konawe Regency, Southeast Sulawesi. The research location was determined intentionally, and the respondents were determined by accidental sampling by taking 15 respondents in each village so that 60 respondents were obtained. The results of the survey and identification show that the characteristics of farmer-breeders in Wiwirano District, North Konawe Regency, are generally dominated by productive age (83%), a low education level (50%), main job as a farmer (98%), experience in farming livestock (57%), experience in oil palm plantations >20 years (73%), and the number of family dependents is 4-6 people (68%). The average time spent on family labor in the Bali cattle business is 3.65 HOK (11%), while the average time spent on family labor in the oil palm plantation business is 30.6 HOK (89%).
Marketing of coconut farming in Central Sulawesi Province
Authors: Rauf R. A. , Sulaeman  , Howara D. , Erny  , Damayanti L. , Malik S.R.
Published: October 2023

Coconut is a plantation crop that has high economic value. Central Sulawesi is a producer of coconut plants in Indonesia, this can be seen from the area and production, and the plants are spread in every district within the province of Central Sulawesi. This study aims to determine the channels, margins, and marketing efficiency of coconut farming in Central Sulawesi Province. The research locations were determined purposively, namely Parigi Moutong and Tojo Una-una Regency. The study’s sample size was 244 people. The result of the research shows that there are two types of coconut marketing channels in Central Sulawesi. The marketing margin on channel I at the collector is IDR 300 per item and from collector to wholesalers, has a marketing margin of IDR 400 per item. The marketing margin on channel II at wholesalers is IDR 400 per item and from wholesalers to the industry, the marketing margin is IDR 500 per item. The farmer share on channel I is 70.29% while on channel II is 70.06%. Coconut marketing efficiency in Central Sulawesi on channels I and II is 21.25% and 26.00%, respectively.
The implementation of the sustainable tobacco program (STP) in Virginia Tobacco Farming in Lombok Island
Authors: Sukardi L , Dipokusumo Bambang , Idris Muhamad Husni
Published: October 2023

The objective of this study was to determine the understanding and the implementation of the principles and standards of the Sustainable Tobacco Program by Virginia Tobacco farmers in Lombok Island. The research was conducted in East Lombok District (Keruak and Sikur subdistrict) and Central Lombok District (Praya Timur and Kopang Subdistrict). The target group of this study were assisted farmers and independent farmers with a total sample of 40 people. Data collection was carried out using the following techniques: interviews, field observations; and (3) in-depth interviews. The results of the study were: (1) There were still 27.50% of farmers involving children under 18 years old in Virginia tobacco farming activities, but none were under 10 years old (elementary school age); (2) All farmers know and apply the principle of forced labor, no workers may work under pressure/threats; (3) Farmers’ understanding and awareness of a safe working environment is very good; (4) Farmers’ attitudes and fair treatment to workers are very well implemented; (5) Farmers are aware of and provide freedom for workers to joint workers’ association; (6) Farmers agree that the income earned by workers must be able to meet basic needs; and (7) all farmers are aware of labor regulations.
Income analysis of community in the essential ecosystem area of Masakambing Island
Authors: Antriyandarti Ernoiz
Published: October 2023

Masakambing Island, located in Masalembu sub-district, Sumenep district, is designated as an Essential Ecosystem Area (EEA). The island is habitats to a surviving wild individual of the abbotti subspecies of the yellow-crested cockatoo (Cacatua sulphurea). EEA is an area of important ecosystem value outside of a conservation area that ecologically supports the continuity of life through efforts to conserve biodiversity for the welfare of society and the quality of human life. This study aims to analyze the income of the people in the Essential Ecosystem Area of Masakambing Island. The primary data collected was analyzed using Ordinary Least Square (OLS). The results showed that income was influenced by side jobs income, education, marital status, and household assets. The welfare of the people of Masakambing Island is low compared to those of other sub-districts in the Sumenep district. Therefore, its ecosystem management requires a sustainable use approach by accommodating the ecological, social, and economic needs of the community.