Research Period Research Articles

ПРОДУКТИВНОСТЬ ПАРОЗАНИМАЮЩИХ КУЛЬТУР И РОЛЬ ПАРОВ В ЗАСУШЛИВЫХ УСЛОВИЯХ СТЕПНОЙ ЗОНЫ ЮЖНОГО УРАЛА

The purpose of the study is to establish the influence of meteorological factors, the content of productive moisture and macroelements in the soil on the productivity of fallow crops in a system of six-field crop rotations on two agricultural backgrounds in the conditions of the steppe zone of the Southern Urals. Long-term studies were carried out from 1993 to 2022 in the Orenburg Region. Location coordinates of the stationary experiment site are: 51.775125 latitude and 55.306547° v.d. Sudanese grass of summer sowing, peas and oats were used as fallow crops. The objects of study (Sudan grass and pea-oat mixture) were cultivated on two agricultural backgrounds: fertilized with N40P80K40 and without the use of mineral fertilezers. The content of macroelements in the soil was determined by the ionometric method according to Tyurin (N-NO3), according to Machigin (mobile phosphorus), according to Maslova (exchangeable potassium). The green mass of fallow crops was taken into account by cutting 1 m2 from the plots. The value of indicators of air temperature and precipitation as a whole for the 30-year period of research (in years of different humidification) and in very dry years (HTC according to Selyaninov < 0.4 units) is considered. As a result of research, it was established that the growing season of very dry years was warmer by 6.4 ± 8.7 % with an average air temperature of 20.4 ± 1.7 °C. In the spring, the content of productive moisture in the fallow field variants was 44.7–46.4 mm in the 0–30 layer, 145.0–152.8 mm in the meter layer, and 213.0–225.9 mm in the one-and-a-half-meter layer. In the occupied soil-protective fallow, by autumn there is an increase in nitrate nitrogen (on average for 1993–2022) on an unfertilized background by 65.7 % (+4.4 mg), on a fertilized background by 24.1 % (+2.1 mg). In the green manure fallow, there is a slight (+0.7 mg) increase in the N-NO3 content by autumn and amounted to 10.1 %. The average yield of green mass of Sudanese grass over the years of research was 15.15 t/ha on a fertilized background, and 13.85 t/ha on an unfertilized background. Our experience revealed a high (r = 0.76) relationship between the yield of green mass of Sudanese grass on two backgrounds of soil nutrition with the productive moisture content of a one-and-a-half-meter layer of soil in conjunction with the amount of precipitation in two summer months (July and August).

Comparative analysis of clinical characteristics and outcomes between carbapenem-resistant and carbapenem-sensitive Klebsiella pneumoniae infections: insights from a tertiary hospital in Northern China

BackgroundTo compare the risk factors, clinical outcomes, and mortality rates between carbapenem-resistant Klebsiella pneumoniae (CRKP) and carbapenem-sensitive Klebsiella pneumoniae (CSKP) infections.MethodsA retrospective cohort study was conducted on patients with Klebsiella pneumoniae infections admitted to a tertiary hospital in Zhangjiakou, China. The research period is from January 2021 to December 2022. Data were analyzed using SPSS 24.0 and R. Univariate analysis identified potential risk factors for CRKP infections using appropriate statistical methods, followed by multivariable logistic regression to determine independent risk factors. Mortality rates between CRKP and CSKP groups were compared using chi-square tests, and survival curves were generated with the Kaplan–Meier method.ResultsThe study included 283 patients, with 104 (36.7%) infected by CRKP and 179 (63.3%) by CSKP. CRKP patients had significantly higher body temperature, white blood cell counts, and inflammatory markers, while showing lower diastolic blood pressure and oxygen saturation (p < 0.05). CRKP infections were predominantly found in the ICU (49%) and mainly isolated from sputum (59%). Independent risk factors for CRKP included elevated C-reactive protein (OR = 1.02) and solid tumors (OR = 18.186). CRKP patients experienced longer hospital stays (25 days vs. 12 days for CSKP), longer ICU stays (13 days vs. 7 days), and higher 30-day mortality (23.1% vs. 17.9%, p = 0.012). The deceased group had elevated procalcitonin and creatinine levels, longer prothrombin time, and a greater need for mechanical ventilation compared to survivors (p < 0.05).ConclusionPatients with CRKP infections had higher mortality rates and longer hospital stays than those with CSKP infections. Previous hospitalization, hospitalization in an ICU, and mechanical ventilation were independent risk factors for CRKP infection.

Spatio-Temporal Dynamic Impacts of Land Use/Cover Change on Eco-Environment Quality in Li River Basin, China

Clarifying the spatio-temporal evolution characteristics of eco-environment quality (EEQ) under land use/cover change (LUCC) and its coordinated relationship is of great importance for formulating reliable environmental protection strategies and measures to promote regional sustainable development. Most studies have emphasized the importance of LUCC for regional ecological quality. However, deeply unraveling the complex interrelationships between them remains a significant challenge, particularly in ecologically fragile regions like the Li River Basin. Therefore, based on the historical land use data and the remote sensing ecological index (RSEI) of the Li River Basin from 1990 to 2020, we analyzed the spatio-temporal evolution characteristics of EEQ and LUCC, and explored the influences and non-linear effects between them by using the bivariate spatial autocorrelation and XGBoost model. The key findings are as follows: (1) Land use/cover (LUC) in the Li River Basin was predominantly characterized by forestland and cropland, which together accounted for approximately 97% of the region. The interconversion between forestland and cropland represented the primary form of regional LUCC, while built-up land demonstrated a growth trend by encroaching on cropland. (2) The EEQ exhibited a volatile upward trend within the research period, with an average RSEI value of 0.5891, indicating a generally favorable ecological condition. (3) A significant negative spatial correlation was observed between land use intensity (LUI) and the RSEI, characterized by H–L, L–H, and non-significant clusters. (4) There was a distinct non-linear relationship that existed between LUCC and the RSEI, underscoring that appropriately regulating regional land use scale can help maintain ecological balance. These findings provide a scientific basis for optimizing land spatial management models and formulating policies to improve ecological environment quality, while also offering a new framework and reference for further ecological research on EEQ influencing factors and driving mechanisms.

How Can Digital Economy Accessibility Accelerate Urban Land Green Transformation in China? Evidence from Threshold and Intermediary Effects

The digital economy is a new economic form that has a significant impact on urban land green use efficiency (ULGUE). With the provincial panel data between 2013 and 2021, this paper empirically tests how the digital economy development level (DEDL) promotes the improvement of ULFUE in China. The key findings include the following: (1) There were significant spatial differences for the ULGUE and DEDL of China. For China’s ULGUE, China shows an ascent after an initial decline trend from 2013 to 2017, but a decline trend after 2017. China’s DEDL took on a rising tendency during the research period. In 2021, China’s DEDL increased by 143.8% compared with that in 2013. (2) The digital economy can obviously promote the ULGUE, but the promotion effect is affected by the urbanization level; with improvements in urbanization level, the impact of that may strengthen. (3) Technological innovation demonstrates a complete intermediary effect between the digital economy and ULGUE; the mediation transmission mechanism of technological innovation is evident. These results have been verified by robustness tests, proving their stability and reliability. The research results will provide new insights into the high-quality utilization of urban land resources.

Pengaruh Struktur Modal, Kebijakan Deviden dan Liuiditas Terhadap Harga Saham Dimoderasi oleh Ukuran Perusahaan

This study investigates the impact of capital structure, dividend policy, and liquidity on stock prices, with company size functioning as a moderating variable for companies listed on the Indonesia Stock Exchange.The research method used is descriptive with a quantitative approach. Data collection was conducted using purposive sampling with data from 10 companies that consistently appeared on the IDX 30 list during the research period. Based on the research results, it can be concluded that capital structure, dividend policy, and liquidity have a significan

Implementasi Faktor-faktor yang Mempengaruhi Nilai Perusahaan

This study aims to determine empirical evidence of factors that influence firm value. The dependent variable of this research is firm value. Meanwhile, the independent variables of this research are profitability, leverage, capital structure, firm growth, and firm size. This research is quantitative research using secondary data. The sample in this research is non-cyclical consumer sector companies listed on the Indonesia Stock Exchange (BEI) for the 2019-2023 period. The sampling technique used a purposive sampling method and there were 143 samples that met the criteria during the 5 research periods. The data analysis technique used in this research is a multiple linear regression analysis technique using SPSS 25. The results of this research show that profitability and capital structure have an effect on firm value, while leverage, firm growth, and firm size have no effect on firm value.

Development of research on HIV-associated neurocognitive disorder and emerging trends: a visualization analysis via CiteSpace

BackgroundIn the combination antiretroviral therapy era, HIV-associated neurocognitive disorder (HAND) is still widespread among HIV-infected individuals. However, there is no effective treatment for HAND, and the exact pathogenic mechanism of HAND remains unknown. This paper aims to provide a reference for further exploration in the field of HAND research.MethodsWe used CiteSpace software to collect 3057 articles related to HAND in the Web of Science Core Collection for comprehensive analysis. Betweenness centrality, count, and burst values were used as indicators in the visualization analysis, aiming to predict future new directions and cutting-edge trends.ResultsThe last decade has been the peak period of HAND research, with the most prominent contributions by authors, countries, and institutions being Grant, Igor (135), the USA (2211), and the University of California System (758), respectively. The most frequently cited article is “HIV-associated neurocognitive disorders persist in the area of potent antiretroviral therapy: CHARTER Study.” The hotspots in this field are “neurocognitive impairment,” “central nervous system,” “cerebrospinal fluid,” “HIV-1 tat,” “SIV,” “inflammation,” “infection,” and “pathogenesis.” The current research direction of HAND is focused on exploring the pathogenic mechanism underlying HIV-associated neurocognitive impairment and potential therapeutic targets.ConclusionThis study provides a bibliometric visualization of HAND-related literature to gain insight into the development and frontiers of this research field. The study also provides scholars with detailed references and identifies future research directions to better promote the development of this field of research.

Analysis of Clinical Pharmacsology Research Publication in Doping and Anti-Doping: A Scientometric Study

The importance of medical professionals like clinical pharmacologists in the field of sport medicine lies in their expertise in doping and anti-doping. There is a need to identify the expertise globally and understand the pattern of research being done in this area. This helps for future collaborative and combined policies, irrespective of any borders. The purpose of this study was to conduct a scientometric examination of bibliographic facts linked to clinical pharmacology in doping and antidoping, and data from PubMed was retrieved between January 2012 and January 2021. This study looked at scientometric approaches such as frequency distribution, percentage analysis, relative growth rate and doubling time, and level of collaboration. During the research period, we acquired a total of 65 articles, and a maximum of 13 (20%) were contributed in the year 2021. The relative growth rate is declining, and the doubling time was increasing between 2014 and 2021. This will be the first scientometric analysis done on the topic to best of our knowledge, and this study will act as a document for further research on the topic.

Cash Holding in Indonesia

This paper has objective to explore determinant of Cash Holding in Emerging Market. Variable is used to determine cash holding which is Gross Profit Margin, Accounts Receivable and Account Payable, Return on Assets, Debt to Equity Ratio, Interest Rate and COVID-19. This paper used panel data model to estimate relationship among variable. Research period is from 2016 to 2023 and 15 Companies in retail industry. The results found that coefficient of correlation among variable is below of 0.5, Gross Profit Margin, Accounts Receivable and Account Payable, ROA and DER and COVID-19 significantly affect cash holding.

Analisis Permintaan Uang dan Penawaran Uang serta Implikasinya Terhadap Kebijakan Moneter

Bank Indonesia sets the main objectives of monetary policy to achieve stability in the value of the rupiah, maintain payment system stability, and maintain financial system stability, in order to support economic growth. The aim of this research is to analyze the influence of GDP on the demand for money, the influence of the BI-Rate on both the demand for money and the supply of money, as well as the influence of inflation, the exchange rate and the statutory reserve requirement (GWM) on the supply of money, and the implications for monetary policy. Research period 2010-2023. The data analysis method is the Two Stage Least Square (2SLS) simultaneous equation model. The results obtained are that GDP has a significant positive effect on the demand for money, BI-Rate has a significant negative effect on both the demand for money and the supply of money, inflation has a significant negative effect on the supply of money, and the exchange rate and GWM are proven to have a significant positive effect on the supply of money.

Analisis Penerapan Green Accounting dan Corporate Social Responsibility Terhadap Nilai Perusahaan Melalui Kemampulabaan

The stakeholders expect that the firm's value will increase supported by increased profitability. This study aims to examine the impact of green accounting and corporate social responsibility on firm value with profitability as an intervening variable. This study uses quantitative methods with SPSS data analysis, involving 57 samples. The sample are basic material sector companies listed on the Indonesia Stock Exchange, with a research period from 2021 to 2023. The results show that only the direct relationship between profitability and firm value has a positive impact on corporate social responsibility, while the direct relationship between green accounting and corporate social responsibility does not impact firm value. The results also show that the relationship between green accounting and corporate social responsibility on firm value with the mediating variable of profitability does not an impact. This study also gives opportunities for further study of other factors that may affect the relationship between green accounting, corporate social responsibility, firm value, and profitability.

Persistensi laba dalam perspektif keagenan

This study aims to empirically examine the effect of operating cash flow volatility, debt to asset ratio (DAR), and the size of accruals on earnings persistence in healthcare sector companies listed on the Indonesia Stock Exchange. This is a quantitative study using secondary data. The sampling technique used is purposive sampling, resulting in a sample of 11 companies over a research period of 5 years, producing a total of 55 research data points. The data analysis technique used is multiple linear regression with Jamovi software. The partial results of the study show that operating cash flow volatility and the size of accruals have a significant effect on earnings persistence, while the debt to asset ratio (DAR) does not have a significant effect on earnings persistence. Simultaneously, operating cash flow volatility, debt to asset ratio, and the size of accruals together have a significant effect on earnings persistence.

Quantifying the human wellbeing of the national wetland park: gross ecosystem product accounting of Shandong Mata Lake National Wetland Park

National wetland parks, characterized by robust ecological functions, distinctive natural landscapes, and abundant cultural resources significantly enhance human wellbeing, serve as crucial providers of ecosystem products, and exert substantial influence on local socioeconomic development and ecological conservation. There is an urgent need to carry out the Gross Ecosystem Product (GEP) accounting and monetize the value of ecosystem products. Taking the Shandong Mata Lake National Wetland Park (SMTNWP) in China as the example, and considering the characteristics of wetland parks, this research constructed the GEP accounting index system comprising 11 secondary subjects from the perspectives of regulation and socio-cultural functions. Taking the year 2021 as the research period, the monetary value was assessed based on biophysical value accounting, and the GEP level was determined. The results showed that the GEP of SMTNWP in 2021 is CNY 74.8317 million, with a unit area GEP of 73,200 CNY/hm2. Regulating ecosystem products constitute the core component of GEP, facilitating the sustainable development of wetland conservation and restoration, as well as eco-cultural tourism. Moving forward, efforts in wetland protection, restoration and maintenance should be sustained, and the platforms for promotion, education and scientific research should be proactively established. The research results can offer support and references for the establishment of unified accounting subjects and systems for similar ecosystems and national wetland parks, and translate the human wellbeing of national wetland parks into visual monetization, providing theoretical basis for the government to realize the value of ecosystem products, and further promoting the conversion of ecological value into economic benefits.

ВЛИЯНИЕ ПРЕДШЕСТВЕННИКОВ НА УРОЖАЙНОСТЬ ЯРОВОЙ ПШЕНИЦЫ В РЕСПУБЛИКЕ ТЫВА

The purpose of research is to study the influence of predecessors on increasing the yield and grain quality of spring wheat in arid steppe conditions. Research was carried out since 2002 in the experimental fields of the Tuva Research Institute of Agriculture on dark chestnut medium loamy soils with a humus content of 3.37 %. In the arid conditions of the dry steppe of the Republic of Tyva, the advantage of pure fallow was noted in comparison with repeated crops. Thus, the yield of spring wheat above 2.00 t/ha in pure fallow was 26.7 %, and in re-seeding only 6.7 %. The yield of spring wheat from 0.51 to 1.00 t/ha in pure fallow was noted only once, and in re-croppings five times during the entire research period. Sowing spring wheat in pure fallow over all years of research showed an increase in wheat yield on average 1.4 times compared to repeated sowings. It was revealed that in the conditions of the steppe zone of the republic it is advisable to cultivate spring wheat after such predecessors as peas, potatoes and green manure, which provide an increase in wheat yield by 1.24–2.08 t/ha compared to its continuous cultivation. It is noted that the use of mineral fertilizer changes the effect of predecessors, transferring the worst predecessors to the category of the best. Thus, applying mineral fertilizer to repeated crops of wheat can increase the yield of spring wheat by 12.5 %. The highest productivity of spring wheat from the use of mineral fertilizer is observed in pure fallow, where the increase was 16.9 %.

Pengaruh Intellectual Capital, Good Corporate Governance, Dan Ukuran Perusahaan Terhadap Kinerja Keuangan Perusahaan

This study aims to analyze the impact of Intellectual Capital, Good Corporate Governance, and Firm Size on Financial Performance of banking companies listed on the Indonesia Stock Exchange during the period of 2021-2022. The research uses a quantitative approach with data analysis conducted using SPSS for Windows 27. The population includes all banking companies listed on the IDX, with a sample selected using purposive sampling technique. The results of the simultaneous test show that all independent variables have a significant impact on financial performance, measured by Return On Asset (ROA) (significance value of 0.004). Partially, Intellectual Capital and Firm Size have a significant effect on financial performance, while Good Corporate Governance does not have a significant impact. This study has limitations in using only three factors and suggests adding more variables and extending the observation period in future research.

Analysis Of Factors Determining Factors Of Financial Performance In Tourism Industry Companies In Indonesia

Since the Covid-19 pandemic, tourism industry companies have experienced losses to bankruptcy. However, in 2022, after the reopening of entertainment and tourism locations, the financial performance of the tourism industry has begun to improve until now. But not all tourism industry companies feel the same way, in fact they are still experiencing losses until now. This can be seen from the value of the company's financial performance as proxied by ROA which is still below the average company health standard of 5.98%. Therefore, the purpose of this study is to analyze the determining factors that influence the financial performance of the tourism industry, namely lavarege, firm size or capital structure. The number of research populations is 30 companies, then reduced using purposive sampling to 24 companies with a 4-year research period (2020-2023). This study uses panel data linear regression analysis which is tested using Eviews 14 software. Then, the researcher also conducted a bankruptcy risk analysis on each company. The results of the study indicate that leverage and firm size are determining factors for financial performance, while capital structure is not a determining factor for financial performance in tourism sector companies listed on the IDX in 2020-2023. Then, the results of the determination coefficient show that the research variables used (leverage, firm size and capital structure) have an influence of only 32.3%. And based on the results of the bankruptcy risk analysis, 4 companies were found to be in the "Financial Distress" category, namely PT Citra Putra Realty Tbk, PT Dafam Property Indonesia Tbk, PT Hotel Fitra International Tbk and PT Pembangunan Graha Lestari Indah Tbk.

Insights into youth nutritional status in Serbia: assessing prevalence and trend in the context of social determinants

BackgroundThe study aimed to assess the prevalence and distribution of different levels of nutritional status among young people, to examine its association with social determinants of health, and to analyse its trend over time.MethodThe research was a secondary analysis of the data from four national health surveys of the Serbian population. The research sample included 11,243 respondents, aged 15 to 29, both genders. A multivariate logistic regression model was applied to examine the association between socio-demographic characteristics, lifestyle, health status, and the level of respondents’ nutritional status. The trend analysis of the levels of nutritional status by the research years was done using multiple linear regression in adjusted models.ResultsA total of 63.3% of respondents had body mass index (BMI) in the normal weight range, 11.7% were underweight, 18.5% were pre-obese, and 6.2% were obese. The average BMI of the study participants was 23.01 ± 6.01. The female respondents were more frequently underweight, and the male respondents were pre-obese and obese. Different factors were associated with different nutritional status levels - for underweight: female gender (OR: 5.29), age 15–19 (OR: 0.06), being married/ in a relationship (OR: 0.69), living in Belgrade region (OR: 1.35), presence of chronic diseases (OR: 0.56), consumption of psychoactive substances (OR:0.56) and non-smoking (OR: 0.70); for pre-obesity: female gender (OR: 0.38), ages 15–19 (OR:0.36) and 20–24 (OR:0.65), being married/ in a relationship (OR: 1.39), having high wealth index (OR:1.30) and non-smoking status (OR:1.32); for obesity: female gender (OR: 0.36), ages 15–19 (OR:0.35) and 20–24 (OR:0.51), being married/ in a relationship (OR:2.31) and primary education level (OR:2.17). The trend analysis of nutritional status level in the research period showed an increase in the average value of the BMI of the respondents in the entire sample, as well as the prevalence of obesity, while the prevalence of underweight and pre-obesity decreased.ConclusionThe research provided insight into the specific factors associated with and trends of levels of nutritional status of the young, leading to the conclusion that preventive and interventional public health programs and strategies must be fully adapted to their specific needs.

Analisis Pengaruh Leverage, Likuiditas, Struktur Modal, Earning Per Share dan Profitabilitas Terhadap Nilai Perusahaan

This study aims to analyze the influence of leverage, liquidity, capital structure, earnings per share (EPS), and profitability on company value in the food and beverages subsector companies listed on the Indonesia Stock Exchange (IDX) from 2018 to 2022. Using a quantitative approach and secondary data, the analysis was conducted using multiple regression to examine the relationship between these variables and company value measured by the Price to Book Value (PBV) ratio. The results show that leverage, liquidity, capital structure, and EPS do not have a significant impact on company value, while profitability positively influences company value. The limitations of this study include a limited sample and the fact that the variables used explain only 17% of the variation in company value. Future research is suggested to extend the research period, use a more diverse sample, and add other independent variables such as LDER, GPM, and NPM..

Determinasi Faktor-Faktor yang Mempengaruhi Nilai Perusahaan

This study aims to identify the factors affecting firm value in food and beverage manufacturing companies listed on the Indonesia Stock Exchange (IDX) during the period of 2021-2023. The research is quantitative, using statistical analysis and secondary data derived from financial statements. The dependent variable is firm value, measured using Price to Book Value (PBV), while the independent variables include investment decisions (Price Earnings Ratio/PER), financing decisions (Debt to Equity Ratio/DER), dividend policy (Dividend Payout Ratio/DPR), and profitability (Return on Equity/ROE). The analysis method employed is multiple linear regression, preceded by classical assumption testing. The results reveal that investment decisions and profitability have a positive effect on firm value, while financing decisions and dividend policy do not significantly affect firm value. The study is limited by a small sample size and a short research period.

The Influence of Environmental, Social, and Governance (ESG) on Company Performance

This research aims to determine the effect of environmental, social, and governance (ESG) disclosure on company profitability, especially in infrastructure sector companies listed on the Indonesia Stock Exchange. The population used was 62 companies. The sampling technique used the Purposive Sampling method, so that a sample of 27 companies was obtained that met the research criteria. This study is a quantitative study with the type of data source being secondary data obtained from the company's financial statements and annual reports. The analysis method used is multiple linear regression using SPSS version 25 software. Data testing was carried out using descriptive statistical analysis, classical assumption tests, multiple regression analysis tests, coefficients of determination and t-tests. The independent variables used are environmental, social, and governance (ESG) while the dependent variable is profitability which is proxied by Return On Asset (ROA). The results of the study indicate that environmental, social, and governance (ESG) disclosure has a positive and significant effect on profitability. In addition, based on the determination coefficient test (R2), environmental, social, and governance are able to explain their effect on profitability by 74.2% of the dependent variable. Based on the research results, it was concluded that ESG has a positive effect on company performance. Suggestions that can be given for further research are to add variables that are not included in this study that are considered to affect environmental, social and governance (ESG) disclosure and to increase the research period to obtain accurate results.