bluuebunny/crossref_metadata_2025 huggingface dataset:
Undernutrition and Associated Factors Among Young Patients on Anti-retroviral Therapy in North Shoa, Oromia, Etiopia,2022. A Facility- Based Cross-sectional Study
Authors: Nigussie Fikadu , Sahlu Degemu , Gizaw Seifu
Published: July 2023

Background Undernutrition and the Human Immunodeficiency Virus (HIV) are related in a complex and harmful way and are both exceedingly prevalent throughout the world, particularly in sub-Saharan Africa. In Ethiopia, the prevalence of undernutrition ranged from 12.3–43% and the prevalence of stunting and thinness among HIV-infected adolescents were 39%) and 14% respectively. There is no study among young patients living with Human Immunodeficiency Virus and ART. Therefore, this study aims to assess the prevalence of undernutrition and its associated factor among young infected with HIV and following ART clinics at the north Shoa health facilities in Oromia, Ethiopia. Methods A facility-based cross-sectional study was conducted. A probability-proportional sampling method was used to select 387 participants and pretested, interview-administered questionnaires were used to collect the data. The information was entered into EpiData and analyzed with SPSS. A 95% confidence interval and a P-value less than 0.05 were used to identify predictor variables, and an adjusted odds ratio (AOR) was used to assess the strength of the association. Result The prevalence of stunting and thinness in the study was 37% (95% CI: 32.0,41.9) and 13.4% (95%, CI:10.3, 16.9) respectively. Being male (AOR 1.5, 95%CI: 1.0,2.4), educational level of caregiver(AOR 7.8, 95%CI: 3.5, 17.2), and having a family income ≤ 1500 ETB (AOR 7.8,95%CI:3.5,17.2) were significantly associated with stunting while being male (AOR = 2.59,95% CI: 1.25,5.40), nutritional counseling (AOR 4.05,95% CI:1.64,10.02), Skipping meal (AOR 4.97,95%CI:2.08,11.9) and educational level of caregiver (AOR 4.18,95% CI:1.82,9.60) were significantly associated with thinness. Conclusion The prevalence of stunting and thinness among HIV-infected adolescents and youth in the study area was consistent with EDHS and higher than the EDHS report respectively. Sex, skipping a meal, nutritional counseling, and family size were significantly associated with thinness and Sex, educational level of the caregiver, and family income was significantly associated with stunting.
In Search of Conceptual Clarity about the Structure of Psychopathic Traits in Children: A Network-based Proposal
Authors: López-Romero Laura , Andershed Henrik , Romero Estrella , Cervin Matti
Published: July 2023

Psychopathic traits in childhood have been revealed as potential identifiers of risk, being predictive of later forms of behavioral maladjustment. Yet, it is still under debate how psychopathic traits in children should be best conceptualized and which dimensions to use for construct definition and prediction. The present study aims to examine the structure of psychopathic traits in childhood, and its predictive value, by using a combination of traditional factor analysis and more recent network-based methods. Data on psychopathic traits, as measured by the Child Problematic Traits Inventory (CPTI), were collected in a large sample of children (n = 2,454; 48.2% girls), aged 3 to 6 at the onset of the study (Mage = 4.26; SD = 0.91), who were followed-up one and two years later using parent- and teacher-reports. Results showed that psychopathic traits measured via CPTI are best conceptualized as five latent factors encompassing grandiosity, deceitfulness, callousness, impulsivityand need of stimulation, a result that converged across informants and time. Callousness and grandiosity emerged as central traits using network analysis of parent-reports, while deceitfulness was most central using teacher-reports. Finally, callousness, impulsivity and deceitfulness emerged as the best predictors of concurrent, prospective and stable conduct problems. These results provide a refined structure of psychopathic traits in children that better accounts for the core elements of the construct. Additional theoretical and practical implications will be discussed in terms of assessment, diagnostic classification and tailored prevention/intervention.
Ferroptosis-related lncRNAs guiding osteosarcoma prognosis and immune microenvironment
Authors: Yang Mingyi , Su Yani , Xu Ke , Zheng Haishi , Yuan Qilings , Cai Yongsong , Aihaiti Yirixiati , Xu Peng
Published: July 2023

Objective: To study the ferroptosis-related LncRNAs (FRLncs) that can guide the prognosis and immune microenvironment of osteosarcoma (OS), and provide a basis for clinical decision-making of OS.
Methods: 86 OS transcriptome data and clinical data were downloaded from The Cancer Genome Atlas (TCGA) database, GSE19276 data set was downloaded from Gene Expression Omnibus (GEO) database, and ferroptosis-related genes (FRGs) list were obtained from FerrDb database. Differential FRGs related to OS were obtained by combined analysis of 86 OS transcriptome data and GSE19276 data set, and FRLncs related to OS were obtained by co-expression analysis. Univariate COX regression analysis and Lasso Cox regression analysis were used to construct the OS risk prognostic model of FRLncs. Further risk curve analysis, survival analysis, (Receiver operating characteristic curve, ROC) curve analysis and independent prognosis analysis were performed. Model validation of clinical groupings was performed to observe whether risk-prognostic models were applicable to patients in different clinical groups. Single sample Gene Set Enrichment Analysis (ssGSEA) explored differential immune cells and immune functions in risk prognostic models. Immune checkpoint differential analysis obtained immune checkpoint-related genes associated with OS prognosis.
Results: Finally, 13 FRLncs that could guide OS prognosis and immune microenvironment were obtained, including 5 high-risk FRLncs (AP000757.1, AL035530.2, AC006160.1, PRR34-AS1 and LINC01719) and 8 low-risk FRLncs (AC090559.1, AC100847.1, MIS18A-AS1, ITCH-IT1, AL031722.1, AC027575.2, AC104561.1 and NBR2). 8 types of immune cells (B cells, macrophages, neutrophils, natural killer (NK) cells, plasmacytoid dendritic cells (pDCs), helper T cells, tumor infiltrating lymphocytes (TIL) and regulatory T cells (Treg)) and 4 immune functions (APC-co-stimulation, check-point, cytolytic-activity and T cell- co-inhibition) were down-regulated in the high-risk group. In addition, we also obtained 17 immune checkpoint-related genes associated with OS prognosis, of which LGALS9, BTLA and TNFSF15 had extremely high statistical significance(P＜0.001).
Conclusion: The FRLncs that can guide OS prognosis and immune microenvironment and the immune checkpoint-related genes associated with OS prognosis found in this study provide a theoretical basis for OS survival research and clinical decision-making.
Numerical modeling of the asymmetric hot plate method considering lateral convective losses
Authors: Dia Mohameth , DIALLO Mamadou , Faye Mactar , Sambou Vincent
Published: July 2023

In this study, a numerical model of the asymmetric hot plate method was developed to determine the thermal properties of materials. The proposed model considers the convective heat loss around the device. First, a numerical calculation code is developed to determine the temperature evolution at the measurement points. This calculation code is then used to perform a reduced sensitivity study on various parameters. The Levenberg-Marquardt algorithm was used to identify the thermal properties of different materials from the thermogram. The impacts of the convection coefficient h and insulation thickness on the calculation of the estimates were studied. Finally, an experimental study was conducted using several materials. The thermal properties were compared with experimental results obtained using other measurement methods. A satisfactory agreement was obtained.
An approach to analyse the error performance of linear receivers for Multi-User Massive MIMO communication systems under Imperfect CSI
Authors: Hosany Mussawir , Rajkumarsingh Bhimsen , FOWDUR Pawan
Published: July 2023

The massive MIMO communication system for cellular networks has shown excellent performance in terms of high spectral and energy efficiencies in recent years. This achievement has been due to the assiduous research undertaken in terms of formulating mathematical expressions to compute these efficiencies. The purpose of this work is to find a generalized approach to compute the error rates of a user terminal connected to a linear receiver of a Massive MIMO system. In line with the objectives set for present and future cellular networks to achieve ultra-reliable communication systems the issue of finding bit error rates required per user terminal is evaluated for a range of BS antennas is addressed in this paper. The approach employed to tackle this issue is to consider three practical linear receivers such as Maximum Ratio Combining (MRC), Zero-Forcing (ZF), Minimum Mean Square Error (MMSE) altogether with an uncorrelated Rayleigh fading environment in the case of imperfect Channel State Information (CSI). Based on solid mathematical foundations, the approach to find the Bit Error Rate (BER) closed-form expressions which are simple to evaluate and have not been reported in literatures yet, are derived for MPSK and MQAM modulation techniques. We verified the validity of our analysis by simulating all mathematical formulations using Matlab R2018 and we showed interesting results such as the number of BS antennas required to achieve the desired BER for a specific uplink receiver and modulation scheme. The mathematical analysis presented in this work can be applied to future cellular systems to compute the distribution of error rates for a user with a given number of BS antennas and modulation scheme. Moreover, Machine Learning algorithms could be applied to the analysis presented to predict the bit error rates for any user terminal in the cellular network.
WITHDRAWN: Biosynthesis of silver nanoparticles using Actinidia deliciosa peels extract: Optimization, characterization, and catalytic activity for methylene blue dye degradation
Authors: Agha Maya Kassem , Maatouk Batoul , Mhanna Rami , El-Dakdouki Mohammad
Published: July 2023

The green synthesis of silver nanoparticles (AgNPs) was successfully achieved using Actinidia deliciosa (kiwifruit) peels aqueous extract as a bioreducing agent under optimized synthesis conditions. TEM and SEM images revealed quasi-spherical monodisperse nanoparticles 25 nm in diameter. The hydrodynamic diameter of the nanoparticles was 106 nm as determined by DLS, and the highly negative ζ-potential (-34 mV) supported its superior colloidal stability. EDX confirmed that silver is a major constituent of the nanoparticles. XRD diffractograms confirmed the crystallinity of the nanoparticles and its face-centered cubic (fcc) lattice structure. The functional groups in the plant’s phytochemicals facilitating the reduction of Ag+ ions and stabilizing the formed AgNPs were identified using FTIR. Phytochemical analysis by colorimetric assays revealed that the kiwifruit peel extract was rich in phenolic compounds. The biosynthesized AgNPs induced instant discoloration of the methylene blue dye with 1.6 mg of nanoparticles used. The degradation reaction followed second order kinetics.
Efficacy of probiotics or synbiotics in critically ill patients: A systematic review and meta- analysis
Authors: Lou Jiaqi , Cui Shengyong , Huang Neng , Jin Guoying , Chen Cui , Fan Youfen , Zhang Chun , Li Jiliang
Published: July 2023

Background
This latest systematic review and meta-analysis aim to examine the effects of probiotic and synbiotic supplementation in critically ill patients.
Methods
Relevant articles were retrieved from PubMed, Embase, the Cochrane Database, and the Web of Science. The primary output measure was the incident of vendor associated pneumonia, and the secondary outputs were diarra, Clostridium diffusion infection (CDI), incident of sepsis, incident of hospital acquired pneumonia, incident of any infection, duration of mechanical exploitation, in hospital morality, length of hospital stay, ICU morality rate, And length of ICU stay. Data were pooled and expressed as relative risk (RR) and standardized mean difference (SMD) with a 95% confidence interval (CI).
Results
Third three studies were included in this systematic review and meta-analysis, with 4065 patients who received probiotics or synbiotics (treatment group) and 3821 patients who received standard care or placebo (control group). The pooled data from all included studies demonstrated that the treatment group has significantly reduced incidence of vessel associated pneumonia (VAP) (RR = 0.80; 95% CI: 0.67–0.96; p = 0.021, I2 = 52.5%) and sepsis (RR = 0.97; 95% CI: 0.66–1.42; p = 0.032, I2 = 54.4%), As well as significantly increased duration of mechanical exploitation (SMD=-0.47; 95% CI: -0.74–0.20, p = 0.012, I2 = 63.4%), length of hospital stay (SMD=-0.33; 95% CI: -0.57–0.08, p = 0.000, I2 = 74.2%), ICU mobility (RR = 0.95; 95% CI: 0.71–1.27; p = 0.004, I2 = 62.8%), And length of ICU stay [SMD=-0.29; 95% CI: -0.58-0.01; p = 0.000, I2 = 82.3%)] than the control group There were no significant differences in diarra, CDI, incidence of hospital acquired pneumonia, and in hospital morality between the two groups.
Conclusion
Our meta-analysis showed that probiotic and synbiotic supplements are beneficial for critically ill patients as they significantly reduce the incidence of vendor associated pneumonia and sepsis, as well as the duration of mechanical exploitation, length of hospital stay, length of ICU stay, and ICU morality How, this intervention has minimal impact on diarra, CDI, incidence of hospital acquired pneumonia, and in hospital morality in critically ill patients.
Exploring transcription processes when children with and without reading and writing difﬁculties produce written text using speech recognition
Authors: Kraft Sanna , Rønneberg Vibeke , Rack John , Thurfjell Fredrik , Wengelin Åsa
Published: July 2023

The aim of this study was to investigate composition and error-correction processes, and their relationship with production rate, in children, age 10-12, with and without reading and writing difficulties using speech-to-text (STT) to write expository texts in Swedish. Measures of individual abilities: working memory, spelling ability and decoding ability, and the ability to interact with the STT tool under optimal conditions (STT success rate) were collected.

For both those with and without difficulties, neither working memory, nor spelling or decoding ability predicted burst length nor accuracy. Only a child’s STT success rate did predict accuracy during text composition. Further, none of the individual abilities predicted choice of error-correction modality (keyboard or STT) or error correction functionality. This indicates that the children’s behavior were independent of these abilities.

Furthermore, production rate was significantly predicted by both burst length and accuracy, and by working memory, but not by error-correction behaviour, nor by spelling or decoding ability. This indicates that composing text using STT is a cognitively complex process placing heavy demands on working memory. Dictating more than one word at a time and combining STT and keyboard use were identified as two useful strategies that can be taught in STT instruction.
Application of tonal audiometry methods to assess the hearing of grey seals in air and water environments
Authors: Pakhomov M. V. , Zaytsev A. A. , Litvinov Yu. V. , Troshichev A. R.
Published: July 2023

Anthropogenic noise load on the traditional habitats of marine mammals continues to increase due to the active development of the Arctic zone. The study of the hearing of Arctic seals is of great importance for the development of measures to reduce the impact of technogenic noise. During the study, a group of ten grey seals of different ages and genders has been trained to press a special key when demonstrating a pure tone sound with a frequency from the standard and extended set of frequencies recommended for pure tone audiometry. The experiments have been carried out by placing the key and the sound source in air and water (at a depth of 2 m) environment. The main indicator is the reaction time of the seal to the demonstrated stimulus. For each seal, individual audiograms for hearing in air and in water have been compiled using 32 frequencies. An analysis of the data obtained has shown that the reaction time can serve as an individual indicator in the study of the hearing of grey seals reflecting their age characteristics. According to the response time to sounds with different tone frequencies it is possible to establish biologically significant and indifferent frequencies for grey seals.
Structural features of the upper part of the section of the Gorniy Altai Uimon depression according to electrotomography data using 3D software
Authors: Kuzina Z. Ya. , Nevedrova N. N. , Sanchaa А. M.
Published: July 2023

Determining the structure of intermountain depressions in seismically active regions at different depths is important for understanding the stages of neotectonic formation of the region and seismic hazard assessment. On the territory of the Uimon depression of the Altai Mountains in different years, measurements were carried out by deep methods of electrical exploration, such as sounding by the formation of the field and vertical electrical soundings. However, to clarify the structure of the upper part of the section, where bedrock outcrops are observed on the day surface, it is necessary to use shallow methods, for example, electrical tomography (ET). The paper discusses the results of ET data interpretation using 2D and 3D inversion when studying basement outcrops in the western part of the basin. Taking into account a priori information and the obtained models, the geological structure of the object of study has been refined. Based on the results of the interpretation of the data of electrotomography using programs of two- and three-dimensional inversion, the geoelectric structure of one of the outcrops of the basement rocks on the day surface has been determined. The immersion of the studied object in the western direction towards the adjacent outcrop of rocks of the Baratal Formation of smaller sizes located in the immediate vicinity has been established. It can be assumed that these two exits are connected at a depth of 15–20 m and, most likely, are one structure.
Rockburst hazard potential assessment of rocks of the Khibiny massif deposits according to the Kaiser criterion
Authors: Kuznetcov N. N. , Kondrashov L. Yu.
Published: July 2023

The mining and geological conditions in the mines worsen due to changes in the stress-strain state of rock masses and their structural disturbance when mining goes to great depths. Under such conditions, it is necessary to assess the impact hazard of ores and rocks that make up the mined deposits. For the prompt implementation of such an assessment, it is proposed to use the Kaiser criterion consisting in the analysis of experimental data obtained on rock samples. The paper presents the results of laboratory testing of rock samples from the deposits of the Khibiny massif under uniaxial compression and tension. The values of their brittleness coefficients have been determined. The possibility of using the Kaiser criterion for a preliminary assessment of rock burst hazard potential has been shown. It has been established that spotty-trachytoid melteigite and trachytoid ijolite-melteigite have a high potential for impact hazard, while spotted apatite-nepheline ore does not have such a potential. A comparison has been made of the obtained results of rockburst hazard assessment of hard rocks from the Khibiny massif deposits according to the Kaiser criterion, as well as the criterion of the Mining Institute of the KSC RAS and the criterion of A. N. Stavrogin. It can be noted that the Kaiser criterion makes it quite easy to carry out a preliminary assessment of rock burst hazard based on the results of testing samples on standard presses. However, to increase the degree of reliability of the data obtained, they must be certified according to the criterion of the Mining Institute of the KSC RAS or the criterion of A. N. Stavrogin.
International Donor Agencies Developmental Prospects in Delta and Edo States: Conceptual Review
Authors: Enahoro Michael
Published: July 2023

The study examined the developmental prospects of international donor agencies in Delta and Edo states. Since the colonial era, some policies and programs within national development plans have been formulated to address the region's peculiarities; minority status, agitations, and perceived marginalization of the people of the Niger Delta. The study adopted the Integrated Development theoretical framework to explain the role of the selected international donor agencies in the Development of Delta and Edo States. This study adopts a qualitative research design; the researcher used descriptive analysis to examine international donor agencies' developmental prospects in Delta and Edo states. The theoretical research draws its argument from secondary data, which include journal articles, books, and internet sources, and was content analyzed about the scope of the study. The study concluded that corruption and bad governance, political and ethnic interest in developmental projects, climatic factors, poor infrastructural foundations, and expanding insecurity as critical developmental challenges affecting the survival of projects and programs in the oil-producing states.
Evaluación de sitio para la determinación de zona de vertimiento de sedimentos dragados mediante la aplicación del método Montecarlo
Authors: Galaz Felipe , Gonzalez Ariel , Quezada Matías
Published: July 2023

Entre algunas de las principales preocupaciones de los puertos se encuentra la generación y mantenimiento del calado de los sitios de atraque, los cuales requieren operaciones de dragado. El vertimiento del sedimento retirado no resulta ser una labor trivial, en relación a los efectos que pueda causar a la biota marina. Por esta razón, la localización del sitio de vertimiento requiere evitar los sectores más activos biológicamente. La elección del sitio óptimo en esta situación se convirtió en un análisis multivariable que se solucionó mediante el método Montecarlo, con el fin de obtener una respuesta más completa. En este estudio se ha propuesto un procedimiento de dragado que considera el retiro del sedimento mediante una excavadora y el traslado hacia el punto de vertimiento utilizando uno o dos gánguiles, dependiendo del caso analizado. La resolución de este problema se llevó a cabo en tres puertos localizados en la región de Valparaíso, Puerto de Ventanas, Puerto de Valparaíso y Puerto de San Antonio, que permitieron la evaluación de resultados bajo distintas características espaciales. Frente a los resultados encontrados se determinó que la aplicación de un gánguil adicional permite disminuir el riesgo en el procedimiento en una magnitud relevante. Por otro lado, a causa de la variabilidad espacial de la actividad biológica, fue más simple la selección del punto de vertimiento en ciertas locaciones, reduciendo la incertidumbre del procedimiento, como se estimó para el puerto de San Antonio.
NUMERICAL APPROACH OF THE BLADE SHAPE AND NUMBER ON THE PERFORMANCE OF MULTIPLE BLADE CLOSED TYPE IMPULSE WIND TURBINE
Authors: Sasongko Herman , Mirmanto Heru , Bangga Galih , Nugrahani Elita Fidiya , Pasaribu Johan Nicholas
Published: July 2023

An impulse turbine uses drag force on its blades to produce torque on its rotor. As fluid flows over the blades, pressure changes occur at the nozzle, which increases the fluid's velocity and reduces the static pressure at the nozzle outlet. The high-momentum fluid then impinges on the rotor blades, generating frictional force and resulting in torque production. To study the impact of blade shape and number on the turbine's performance, simulations were conducted. The results indicate that blades with an angle of 0° and 180° are optimal for creating high-pressure vortices on the concave surface of the blade. Addition-ally, more blades always result in higher torque and power out-put by increasing the active area of the blades. However, in the case of blades with an angle of 0° and 180°, 8 blades produced more torque than 12 blades with an angle of 0° and 90°. There-fore, blades with an angle of 0° and 180° are highly effective at generating drag force and producing torque.
APLIKASI PUPUK HAYATI MIKORIZA DALAM MENINGKATKAN FASE PERTUMBUHAN VEGETATIF DAN GENERATIF KACANG TANAH (Arachis hypogea L.)
Authors: Hazra Fahrizal , Istiqomah Fatimah Nur , Saputra Rafid Nanda
Published: July 2023

Peanut has long been cultivated in Indonesia and is generally grown on dry land. The continuous use of inorganic fertilizers can have a negative impact on the soil, so there is a need for environmentally friendly fertilizers such as biological fertilizers. This study aimed to elucidate the effect of mycorrhiza biofertilizer on the vegetative and generative growth of peanuts. The study was conducted in the experimental field of Cikabayan IPB with a three-factor Completely Randomized Design. The treatments tested were 1) control, 2) 100% NPK fertilizer, 3) 100% organic fertilizer, 4) 100% organic fertilizer + NPK, 5) 5 g mycorrhizae, 6) 100% NPK + mycorrhizae 5 g, 7) 100% organic fertilizer + mycorrhiza 5 g, and 8) organic fertilizer + NPK 100% + mycorrhiza 5 g. Parameters observed included plant height, number of primary branches, number of pods, pod weight, colonization or root infection, number and types of spores. The results showed that the application of NPK fertilizer + organic fertilizer + mycorrhizae 5 g could increase vegetative and generative growth in peanut plants. The treatment of NPK+ organic fertilizer + mycorrhizae 5 g (AOM) had a very high percentage of infection, which was 86.67%. The AOM treatment had a high number of spores, which was 32 spores and 3 types of spores were successfully associated, namely Acaulospora sp1, Acaulospora sp 2 and Glomus etunicatum.
MORFOLOGI DAN KLASIFIKASI TANAH PADA FORMASI WATURANDA DENGAN PENGGUNAAN LAHAN HUTAN DAN TEGALAN DI DESA LEBAKWANGI, BANJARNEGARA, JAWA TENGAH
Authors: Siwi Risang Sembodo , Nurcholis Mohammad , Virgawati Sari
Published: July 2023

Soil develops from the rocks of the Waturanda Formation in Lebakwangi Village is from sedimentary tertiary volcanic activity. The purpose of this study was to identify the soil morphology and soil classification in the Waturanda Formation with forest and dry land use according to the Soil Taxonomy 2014, World Reference Base 2015, and National Soil Classification 2016. The soil profile from the topsoil to subsoil under the forest land use was dominated by clay texture (49.04%-56.46%), with particle density 1.20-1.24 g cm-3, bulk density 1.64-1.82 g cm-3, pH (H2O) 4.05-4.68, pH (KCl) 3.42-3.55, organic C 1.47-2.29%, CEC 13.05-19.60 cmol(+) kg-1, and saturation base 24.35%-73.70%. Similarly, the soil profile under the dryland use was dominated by clay texture (37.06%-62.60%), with particle density 1.10-1.20 g cm-3, bulk density 1.58-1.75 g cm-3, pH (H2O) 4.32-4.54, pH (KCl) 3.49-3.65, organic C 0.96-1.66%, CEC 19.95-25.81 cmol(+) kg-1, and saturation base 58.35%-95.43%. Both soil profiles have an udic humidity regime and isohyperthermic soil temperature regime. Soil classification according to Soil Taxonomy, WRB, and NSC for forest land is Humic Eutrudepts, Clayic Haplic Luvisols, and Eutrict Cambisols, while for dryland use is Pachic Hapludolls, Clayic Haplic Luvisols, and Haplic Molisols.
PENINGKATAN KESUBURAN TANAH DAN HASIL PADI SAWAH MELALUI APLIKASI PUPUK ORGANIK
Authors: Mahbub Itang Ahmad , Tampubolon Gindo , Mukhsin Mukhsin , Farni Yulfita
Published: July 2023

The yield of irrigated paddy rice in Sri Agung Village has decreased. In the last four years, the increase in the addition of input units (fertilizers) has not been followed by an increase in economic yields. This study aims to analyze the effect of organic fertilizers on soil fertility, such as pH, total N, organic C, available P and available K. The research was conducted in the rice fields of Sri Agung Village. Batang Asam area, West Tanjung Jabung Regency - Jambi. The research was conducted from April to September 2020. The study used a randomized block design with six treatments and five replications. The treatments tried were: Recommended Fertilizer (R), five types of organic fertilizer with a dose of 10 t ha-1 each, namely, Petroganik+R ( P1), Compost Solid Decanter + R (P2), Chicken Manure + R (P3 ), Cow Manure +R (P4) and Industrial Waste Compost + R (P5). The results showed that organic fertilizers significantly increased available K content of paddy soil but they did not significantly increase soil pH, total N, organic C and available P. The highest yield of dry milled grain (7.52 t ha-1) was obtained at +R (P1) Petroganic treatment.
APLIKASI LUBANG RESAPAN BIOPORI BERKOMPOS DI KEBUN KOPI MENINGKATKAN JUMLAH SPORA MIKORIZA ARBUSKULA DAN KOLONI AKAR
Authors: Prosanti Dyah Ayu , Prasetya Budi , Soemarno Soemarno
Published: July 2023

Mycorrhizae is a mutualistic symbiotic relationship between fungi and plant roots, and soil characteristics influence the performance of this symbiosis. Biopore Infiltration Hole is a vertical hole into the soil with a diameter of about 10cm and at a depth of ±100 cm in the soil for air infiltration, which is helpful in reducing the occurrence of excessive air puddles. This research was conducted to determine the effect of soil properties such as pH, total N, available P, CEC and texture on the number of spores and root colonies by arbuscular mycorrhizae on the effect of biopore infiltration holes with the addition of organic matter. The results showed that the highest number of arbuscular mycorrhizae spores and root colonies was in the biopore infiltration holes with goat manure, namely 16.3 spores 100 g-1 soil and 66.22% root colonization. The arbuscular mycorrhizal genera found included Glomus, Acaulospora, Scutellospora, and Gigaspora. The number of spores and soil properties that were positively correlated were pH (r=0.45), organic C (r=0.945**), total N (r=0.716**), available P (r=0.922**), dan CEC (r=0.894**).
DINAMIKA KARBON DAN AKTIVITAS β-GLUKOSIDASE DI TOPSOIL DAN SUBSOIL LAHAN PERTANIAN MONOKULTUR NAGARI ALAHAN PANJANG SUMATERA BARAT
Authors: Murni Sri Dewi , Agustian Agustian , Harianti Mimien
Published: July 2023

This study aimed to determine the dynamics of carbon and glucosidase enzyme activity in the topsoil and subsoil of monoculture land. This research was in Nagari Alahan Panjang, West Sumatra. Soil samples were taken using a purposive random sampling method on three cropping patterns: monoculture, rotation and intercropping, and two depths of 0-15 cm and 15-30 cm. The parameters analyzed included total N, organic C, exchangeable K, Ca, Mg, and Na, glucosidase, biomass C, and respiration. Data from observations were analyzed with Pearson statistics 8 correlation. The results showed that β-glucosidase activity was positively correlated with total N and organic C, biomass C was positively correlated with exchangeable Mg, and respiration was positively correlated with N total and β-glucosidase.
PEMBUATAN DAN APLIKASI PUPUK ORGANIK CAIR (POC) SEBAGAI SUBSTITUSI NUTRISI AB MIX TERHADAP TANAMAN KANGKUNG (Ipomoea reptans) PADA HIDROPONIK WICK SYSTEM
Authors: Fitriyani Indri Hapsari , A’yun Qonita Qurrota , Djajakirana Gunawan
Published: July 2023

The price of the AB mix is relatively high, so it needed to find another alternative with a more economical price. One of the alternatives is Liquid Organic Fertilizer (LOF). This study aimed to know the quality of LOF made from banana peels and chicken egg shells, the effect of LOF on the water spinach grown in the hydroponic wick system, and the possible use of LOF as a substitute for AB mix. The experiment consisted of three stages. The first stage was the nutrient analysis of raw materials. The second stage was the production of LOF and nutrient analysis. The results of fermented fertilizers are called POC PT. The third stage was an experiment on water spinach in a hydroponic wick system. The experiment used a completely randomized design with five fertilizer treatments, namely P0 (control), P1 (AB mix nutrition), P2 (LOF PT 150%), P3 (LOF PT 100%), P4 (LOF PT 50%) in three replications. The results showed that LOF, which was fermented for three weeks, had a low nutrient content and was below the Ministry of Agriculture standard. The available N content in POC PT was low, so Ca(NO3)2 fertilizer was added to POC PT. The LOF PT treatment had higher plant growth parameter than the control treatment. Thus, the treatment of LOF PT could not substitute AB mix.
MODEL PERUBAHAN TUTUPAN LAHAN BERBASIS CA-MARKOV: STUDI KASUS KECAMATAN TERNATE UTARA, KOTA TERNATE
Authors: Achmadi Panji Nurul , Dimyati Muhammad , Manesa Masita Dwi Mandini , Rakuasa Heinrich
Published: July 2023

North Ternate Sub-district is located in the center of Ternate City, making it a sub-district that has an increasing population every year. The increase in population certainly affects the increase in built-up land, which certainly affects environmental damage, climate change and other socio-economic problems. This study aims to predict land cover change in North Ternate Sub-district in 2003, 2013, 2023 and 2032 based on CA-Markov. This research used CA-Markov method to predict land cover in 2023. The results showed that in 2003, 2013, 2023 and 2032, built-up land annually experienced an increase in area, this is certainly influenced by the increase in population, and the need for land for settlement is getting higher every year. Agricultural land, non-agricultural land and open land continue to decrease in the area due to the conversion of these types of land cover to built-up land. The results of this prediction are very useful for the government in making policies related to sustainable spatial planning in the future.
PREDIKSI KONVERSI LAHAN PERTANIAN BERBASIS ARTIFICIAL NEURAL NETWORK-CELLULAR AUTOMATA (ANN-CA) DI KAWASAN SLEMAN BARAT
Authors: Sarastika Tiara , Yusuf Susena  , Dwi Kurniawan
Published: July 2023

Analysis and prediction of land conversion using spatial-temporal data are essential for environmental monitoring and better land use planning and management. The West Sleman area has the potential to experience land use changes due to anthropogenic factors. This study aimed to determine the spatial-temporal dynamics of land use change in 2012-2022 and predict future land use change using the ANN-CA model for 20 years (2022-2042). Analyzed the spatial-temporal dynamics of land use change based on land use data derived from SPOT imagery, then predicted future land use change with the ANN-CA model using the MOLUSCE plugin on QGIS Desktop 2.18.11. The simulation results showed an accuracy of 86.66% and an overall Kappa value of 83% obtained by comparing the actual data in 2022 with the simulated data on land use change in the same year. The irrigated paddy fields decreased by 6.39% (685.22 ha) due to conversion to settlements. The area of residential buildings increased by 4.65% (498.49 ha) during 2012- 2017. Predictions of land use change in 2022-2042 show that the reduction of irrigated paddy fields will continue, and the number of residential buildings tend to increase.
PEMANFAATAN NORMALIZED GREEN RED DIFFERENCE INDEX (NGRDI) UNTUK MENDUGA KADAR N-TOTAL PADA LAHAN PADI DI KABUPATEN PAMEKASAN
Authors: Rida Zuelfiekar Akmil , Wicaksono Kurniawan Sigit
Published: July 2023

Inefficient fertilization is the cause of decreased rice production. This is due to the inappropriate use of fertilizers. The absence of information on soil nitrogen content in their area causes farmers not to apply fertilizer properly. Analysis of soil nitrogen content in Pamekasan Regency requires much time, cost, and effort. Remote sensing methods can be used to obtain information on soil nitrogen levels by reducing the number of samples used. This study aims to estimate nitrogen content in rice fields using the vegetation index in the form of NGRDI (Normalized Green Red Difference Index). This research was conducted by purposive random sampling method based on 40 land map units formed in Pamekasan Regency, laboratory analysis, statistical analysis, and making distribution maps. The results showed that there was a significant relationship between the NGRDI pixel value and the nitrogen content, with a correlation value of -0.42. The regression equation results obtained from the NGRDI value with nitrogen content are y = -0.269x + 0.139. The accuracy test was carried out by the RMSE method, and the result was 0.027. This shows that the NGRDI index can estimate soil nitrogen content in Pamekasan Regency
PENGARUH FITOREMEDIASI TANAMAN LOKAL TERHADAP KADAR TIMBAL (Pb) TANAH DI LAHAN PENIMBUNAN LIMBAH PERTAMBANGAN EMAS PT. ANTAM
Authors: Bonor Yessika Evalyana Sinaga , Wicaksono Kurniawan Sigit , Utami Sri Rahayu
Published: July 2023

Gold mining is closely related to land degradation caused by heavy metals such as lead (Pb), which are non-degradable, non-essential, and immobile. This study aims to compare soil lead levels before and after phytoremediation using local plants. Plant species consist of white teak (Gmelina arborea Roxb.) Pulai (Alstonia scholaris L.R.Br.), ganitri (Elaeocarpus ganitrus Roxb.), pine (Pinus merkusii Jungh), rasamala (Altingia excelsa N.) and puspa (Schima wallichii K.) with the planting position on the upper terrace, middle terrace and lower terrace. Soil characteristics observed were texture, spH, and lead content. The two-sample pair test (paired t-test) on the soil before and after phytoremediation had a significant effect on soil lead content (Sig. 1- tailed).
Low-load exercise program and platelet-rich plasma for intrasubstance tear in lateral elbow tendinopathy: protocol for a double-blinded randomized clinical trial
Authors:   Centro de Investigación en Medicina Ejercicio Deporte y Salud, Clínica MEDS, Santiago., Droppelmann Guillermo , Torrez Alexis ,   School of Kinesiology, Faculty of Medicine, Finis Terrae University, 7510000 Santiago, Chile., Garcia Nicolas ,   Centro de Investigación en Medicina Ejercicio Deporte y Salud, Clínica MEDS, 7691236 Santiago, Chile., Greene Cristobal ,   Centro de Investigación en Medicina Ejercicio Deporte y Salud, Clínica MEDS, 7691236 Santiago, Chile.
Published: July 2023

Background: Lateral elbow tendinopathy (LET) is one of the most common musculoskeletal conditions. Treatment includes a series of therapeutic alternatives. However, the resolution takes nearly 24 months. Platelet-rich plasma (PRP) is an effective option, especially when the tendon presents an intrasubstance tear (IST). It is unknown what type of rehabilitation plan is more effective after this treatment. Aim: To perform a study protocol of a double-blinded, randomized clinical trial to determine the efficacy of a specific low-load exercise program in patients with LET and IST treatment with PRP under US-guided Methods: A single-center, parallel-controlled, randomized, double-blinded, phase III trial was pro-posed. Patients over 18 years-old diagnosed with LET and IST treated with US-guided PRP will be selected. Two arms of treatment will be allocated with a ratio a 1:1 ratio (low-load exercise protocol vs. conventional exercise program). The principal outcome will be the reduction of the tendon tear size. Secondary outcomes will include Patient-Rated Tennis Elbow Evaluation score, visual analogue scale, and handgrip at baseline, 3, 6, and 12 months of follow-up. Statistical tests will be 2-sided t-test with an alpha level (significance level) of 0.05. Discussion: The intervention aims to significantly reduce tendon tear size and improve pain and functionality in patients with LET and IST treated with US-guided PRP. We proposed one of the first studies in the literature that considered a detailed standardized exercise protocol applied to these patients. The result could be used to speed up treatment save time and money, help evaluate guidelines, and improve patients' and athletes' quality of life.
High SLC20A1 Expression Indicates Poor Prognosis in Prostate Cancer
Authors: OKAMOTO TAIKI , ONAGA CHOTARO , MATSUOKA IZUMI , OZAKI AYAKA , MATSUDA CHIKA , KASAI TAKAHIRO , XIONG YUYUN , HARADA YOHSUKE , SATO TSUGUMICHI , NAKANO YOSHIO , MANO YASUNARI , MIYAZAKI SATORU , ISHIGURO HITOSHI , SATO KEIKO , TAMORI SHOMA , SASAKI KAZUNORI , OHNO SHIGEO , AKIMOTO KAZUNORI
Published: July 2023

Background/Aim: High expression of solute carrier family 20 member 1 (SLC20A1) indicates poor clinical outcomes for patients with breast cancer subtypes treated with endocrine therapy and radiotherapy. However, the association between SLC20A1 expression and clinical outcomes in prostate cancer remains to be determined. Materials and Methods: Open-source datasets (The Cancer Genome Atlas prostate, Stand Up to Cancer-Prostate Cancer Foundation Dream Team, and The Cancer Genome Atlas PanCancer Atlas) were downloaded and analyzed. SLC20A1 expression was analyzed in prostate cancer and normal prostate tissue. Survival analysis using Kaplan–Meier curves and Cox regression analysis were performed to examine patient prognosis, as well as the effects of endocrine therapy and radiotherapy on high SLC20A1 expression in patients with prostate cancer. Results: SLC20A1 was higher in prostate cancer than in normal prostate tissues. High SLC20A1 expression predicted poor disease-free and progression-free survival. Following endocrine therapy, no significant difference in prognosis was observed between patients with high SLC20A1 and those with low SLC20A1 expression. However, following radiotherapy, high SLC20A1 expression tended to be associated with a poor clinical outcome. Conclusion: SLC20A1 may serve as a prognostic biomarker for prostate cancer, and the recommended treatment for patients with high SLC20A1 expression is endocrine therapy.
Отклик джозефсоновского перехода на импульс тока с энергией микроволнового фотона
Authors: Ревин Л.С. , Ладейнов Д.А. , Гордеева А.В. , Панкратов А.Л.
Published: July 2023

A theoretical analysis of the efficiency of detecting photon-like pulses at frequencies of the order of 10 GHz by the Josephson junction is performed with parameters available for aluminum technology. Numerical simulation of the junction switching dynamics under the influence of a switching pulse is carried out within the framework of a linear resistive model of the Josephson junction. For comparison with simulations, the experimental data of a sample made using aluminum technology by the shadow evaporation technique are used. The times between dark counts for which the junction is sensitive to single photons are determined. Ways to increase sensitivity are considered.
Исследование вольт-амперной характеристики массивов джозефсоновских контактов из высокотемпературных сверхпроводников при импульсном облучении
Authors: Пестов Е.Е.
Published: July 2023

The current-voltage characteristic and voltage spectrum of a Josephson junction under the action of current pulses are studied within the framework of a resistive shunt model. The possibility of using Josephson junctions made of high-temperature superconductors to create a quantum synthesizer of alternating voltage has been studied.
Моделирование двухфотонных событий в сверхпроводящей полоске для различной длины тепловой связи
Authors: Щетинина Е.В. , Дрязгов М.А. , Корнеева Ю.П. , Корнеев А.А. , Тархов М.А.
Published: July 2023

The results of the study of the evolution of two hot spots formed by the simultaneous absorption of two photons are presented. The lifetime of normal domains and the maximum resistance of the superconducting strip were estimated depending on the distance between the absorbed photons. The minimum distance between the edges of the temperature distribution of hot spots, leading to the loss of thermal coupling, is 28 nm, which is consistent with experimental data. The possibility of distinguishing two-photon events for different reading schemes was evaluated.
Исследование оптически индуцированного формирования магнонных зон в структуре ЖИГ | периодический арсенид галлия
Authors: Бубликов К.В. , Шешукова С.Е. , Бегинин Е.Н. , Tapajna M. , Greguvsova D. , Крылов С.Н. , Стогний А.И. , Корчагин С. , Никитов С.А. , Садовников А.В.
Published: July 2023

The present work is devoted to the study of the optically induced formation of the band structure of a magnon crystal consisting of a ferrite microwave diode loaded with a semiconductor with periodic thickness modulation. Using the Brillouin light scattering method, it is demonstrated that an increase in the power of laser radiation illuminating the semiconductor layer leads to the formation of non-transmission bands in the spectrum of surface magnetostatic waves (PMSW) with a simultaneous increase in the central frequency of these bands. Using the finite element method, we connected the formed non-transmission bands with the Bragg resonances of the periodic structure, and also evaluated the effect of changes in the density of semiconductor electrons on the dispersion dependences and non-reciprocal properties of PMSV in such a structure.
Генерация ЭДС магнитостатическими волнами в структуре ЖИГ(111)-Pt в слабых полях подмагничивания
Authors: Никулин Ю.В. , Кожевников А.В. , Высоцкий С.Л. , Темирязев А.Г. , Селезнев М.Е. , Хивинцев Ю.В. , Филимонов Ю.А.
Published: July 2023

In a structure of an epitaxial film of yttrium iron garnet (YIG) with crystallographic orientation (111) 11.8 μm thick and a 5 nm thick platinum (Pt) film deposited on its surface, the effect of EMF generation in a platinum film during the propagation of magnetostatic waves (MSW) in the structure was studied at values of the tangential constant magnetic field H less than the saturation field H_s~65 Oe of the YIG film. The experiments were performed in a geometry where the field H was parallel to the crystallographic direction [1¯21] and to the MSW antennas, and the distances from the input antenna to the output antenna and to the Pt film were ~5 mm and ~0.5 mm, respectively. In the structure under consideration, at |H|<H_s, a stripe domain structure (SDS) was formed, which in fields |H|<H_1~5 – 7 Oe acquired a branching character in the near-surface layer. In the range of fields H_1<|H|<H_2≈40 Oe, MSW propagation was observed in the frequency band ∆F_1~ 300-550 MHz, which was accompanied by EMF generation due to the inverse spin Hall effect. In the interval H_2<|H|≤H_s, MSW propagation was observed in the frequency band ∆F_2≈ 750-1750 MHz, while the frequency interval in which the EMF signal was recorded turned out to be several times smaller due to the development of MSW parametric instability.
Исследование сжимаемости цианамидов металлов и влияния давления на их электронные свойства
Authors: Корабельников Д.В. , Федоров И.А.
Published: July 2023

Based on the density functional theory, the effect of pressure on the structure and electronic properties of crystalline metal cyanamides Zn(CN2) and NaSc(CN2)2 has been studied. The negative linear compressibility of Zn(CN2) was revealed and its correlation with microscopic changes in the atomic structure under pressure was established. It is shown that NaSc(CN2)2 has a low compressibility (0.2 TPa-1) in a direction close to that of cyanamide anions. Based on the quantum topological analysis of the electron density, interatomic interactions were studied and it was found that the Zn-N and Sc-N bonds have a partially covalent character. The band gaps of Zn(CN2) and NaSc(CN2)2 at pressures up to 1 GPa have been determined and found to correspond to the UV range of 224-271 nm.
Расчет относительных дисперсий намагниченности, теплоемкости и восприимчивости в двумерной слабо разбавленной трехкомпонентной модели Поттса
Authors: Атаева Г.Я. , Бабаев А.Б. , Муртазаев А.К.
Published: July 2023

Using the Monte Carlo method, the relative dispersions of magnetization Rm, heat capacity Rc and susceptibility Rchi are calculated for a weakly diluted three-component Potts model on a square lattice at a spin concentration p=0.90. It is revealed that the introduction of disorder in the form of non-magnetic impurities into the two-dimensional Potts model leads to non-zero values for Rm, Rc, and Rchi at the critical point. It is found that these values decrease markedly for systems with linear dimensions L>80.