bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of the potential for sustainable development of rural areas of Siberia
Authors: Petukhova M. S. , Orlova N. V.
Published: July 2024

An attempt has been made to assess the potential for sustainable development of rural areas of the Siberian Federal District in order to identify promising areas for their strategic development. As the main hypothesis, it is assumed that the sustainability of rural areas is achieved exclusively with the uniform availability of the economic, social and environmental potential of the territory. It is determined that the integral stability indicator is a combination of all three types of potential. The article proposes a system of indicators reflecting the economic, social and environmental potential of rural areas, and tests the developed methodology on the example of the subjects of the Siberian Federal District. As a result of calculations, the highest indicator of rural sustainability was identified in the Altai and Krasnoyarsk Territories and the Novosibirsk region. An ideal uniform stability model is not observed in any of the subjects of the Siberian Federal District. The Altai, Krasnoyarsk Territories and Irkutsk Region are the closest to it. The authors have proposed promising directions for improving the sustainability of rural areas in Siberia, including: 1) support for the acquisition and introduction of modern technologies into production that increase labor productivity; 2) implementation of comprehensive rural improvement projects involving private companies on a parity basis; 3) support for the transition of agricultural producers to an organic type of production; 4) support for social innovation projects in rural areas.
Control of quality and safety of microgreens white mustard
Authors: Burmistrov E. A. , Ivonina M. V. , Naumova N. L.
Published: July 2024

When growing microgreens, edible young, tender sprouts are obtained from the seeds of various types of vegetables, field crops, aromatic herbs and wild plants. White mustard (Sinapis alba) is a promising agricultural crop with a wide range of applications. Today, one of the interesting directions is its use for the production of microgreens.

   The purpose of the research was to control the quality and safety of white mustard microgreens sold in retail stores and white mustard grown in laboratory conditions.

   Studied: labeling, organoleptic characteristics, nutritional value, safety and price category of microgreens. A violation of the labeling requirements regarding the completeness of the information contained on the packaging when selling white mustard microgreens of the FAZA trademark and seeds for its cultivation of the Green Corner trademark in retail sales was revealed. Manufacturers of these products are recommended to bring the labeling details into compliance with the standards of TR CU 022/2011 and GOST R 51074-2003. Control of the quality and safety of microgreens in commercial circulation and microgreens grown in laboratory conditions, in both cases showed their compliance with the requirements of the Veterinary and Sanitary Examination Rules, SanPiN 2.3.2.1078-2001 and TR CU 021/2011. In a comparative aspect, microgreens obtained independently have a lower price indicator (1.8 times), exceed commercial microgreens in terms of dry matter content (2.7 times), contain less nitrates (2 times) and cesium radionuclide – 137 (30 times). The competitor sample, in turn, contains more microelements - Fe (27.3%), Cu (900%), Zn (24.1%), Mn (50%) - against the background of a lower toxicant load. tami Cd (by 10.3%) and Ni. Consumption of 100 g of the studied samples of white mustard microgreens can satisfy 27 - 28% of the recommended Mg intake for an adult.
Application of probiotic preparation Vetom 3.22 in disease of girl cross with herpes virus type 2 (CyHV-2)
Authors: Morozko A. V. , Utkin Ya. A. , Vyalkova E. A. , Interesova E. A.
Published: July 2024

The effect of the probiotic drug Vetom 3.22 on the body of silver crucian carp when used as a feed additive against the background of an acute course of the cyprinid herpes virus type 2 (CyHV-2) was shown. Diagnosis of this disease before the manifestation of characteristic clinical signs is difficult, and specific treatment has not been developed, so therapy that supports immunity is used. The physiological state of goldfish during the experiment was assessed based on the results of hematological analysis. Individuals not infected with the specified virus were selected as a control group. Research results have shown that Vetom 3.22 has a beneficial effect on the fish body: the immune response to the disease with cyprinid herpes virus type 2 (CyHV-2) is increased by improving the process of leukopoiesis, metabolism is stimulated by an increase in the number of red blood cells. The drug can be successfully used as a biologically active additive to feed, including as an adjunct in the treatment of fish for diseases for which no drug measures have been developed. However, it should be taken into account that the drug Vetom 3.22 is not a therapeutic agent, therefore, in case of serious fish diseases, in addition to it, the use of specialized drugs is required. The results obtained can be used to prepare practical recommendations on measures to combat acute disease in aquaculture.
Analysis of development trends in agriculter of the Republic of Sakha (Yakutia): challenges and opportunities
Authors: Kuznetsova I. G. , Val O. M.
Published: July 2024

The study is devoted to the application of SWOT-analysis method for studying rural areas in the Republic of Sakha (Yakutia). The SWOT-analysis method is one of the most widely used tools for studying and assessing rural areas. Analyzing the strengths of agriculture helps to identify and study its advantages and disadvantages. The analysis of weaknesses helps to identify such factors as unfavorable climatic conditions, lack of qualified personnel, underdeveloped infrastructure and lack of developed transport infrastructure. The strengths of agriculture in the Republic of Sakha (Yakutia) include unique natural resources, availability of ecologically clean territory, tourism opportunities and original way of life and culture. The threats include deterioration of the environmental situation, demographic problems, climate change, etc. To overcome threats in the Republic of Sakha (Yakutia) it is necessary to develop comprehensive strategies and programs that will take into account the peculiarities of the region and purposefully address these problems. It is also important to ensure effective management and coordination between different stakeholders, for which “windows of opportunity” have been identified.
Deep brain stimulation in Latin America in comparison with the US and Europe in a real-world population: indications, demographics, techniques, technology, and adverse events
Authors: Lopez Rios Adriana Lucia , Piedimonte Fabián , Arango Gabriel J. , Teixeira Manoel J. , Arellano-Reynoso Alfonso , Del Carmen César Griselda , Carmona Hans , Ciampi de Andrade Daniel , Aníbal Restrepo-Bravo Carlos , Gloria Escobar Jose Miguel , Xiong Hui , Martínez Ricardo , Weaver Todd
Published: July 2024

OBJECTIVE

The aim of this study was to provide geographic comparisons of deep brain stimulation (DBS) procedures in Latin America with the US and Europe regarding primary indications, demographic information, clinical and device-related adverse events, technology used, and patient outcomes using the Medtronic Product Surveillance Registry data as of July 31, 2021.

METHODS

Two thousand nine hundred twelve patients were enrolled in the registry (2782 received DBS and 1580 are currently active). Fourteen countries contributed 44,100 years of device experience to the registry. DBS centers in Latin America are located in Colombia (n = 3), Argentina (n = 1), Brazil (n = 1), and Mexico (n = 1). Fisher’s exact test was used to compare the difference in proportions of categorical variables between regions. The Wilcoxon signed-rank test was used for the EQ-5D index score change from baseline to follow-up.

RESULTS

The most common indication for DBS was Parkinson’s disease across all regions. In Latin America, dystonia was the second most common indication, compared to essential tremor in other regions. There was a striking finding with respect to age—patients were an average of 10 years younger at DBS implantation in Latin America. This difference was most likely due to the greater number of patients with dystonia receiving the device implants. The intraoperative techniques were quite similar, showing the same level of quality and covering the main principles of the surgeries with some variations in the brand of frames, planning software, and microrecording systems. Rechargeable batteries were significantly more common in Latin America (72.37%) than in the US (6.44%) and Europe (9.9%). Staging of the DBS procedure differed, with only 11.84% in Latin America staging the procedure compared with 97.58% and 34.86% in the US and Europe, respectively. The EQ-5D score showed significant improvements in all regions during the first 6–12 months (p < 0.0001). However, the 24-month follow-up only showed an improvement in the scale for Latin America (p < 0.0001).

CONCLUSIONS

DBS was performed in Latin America with similar indications, techniques, and technology as in the US and Europe. Important differences were found, with Latin America implementing more regular use of rechargeable devices, including younger patients at the time of surgery, and showing more sustained quality of life improvements at 24 months of follow-up. The authors hypothesize that these disparities stem from differences in resources among regions. However, more studies are needed to standardize DBS practice across the world to improve patients’ quality of life and provide high-quality care.
Derivation of the Quebec Brain Injury Categories for complicated mild traumatic brain injuries
Authors: Tourigny Jean-Nicolas , Boucher Valérie , Dubucs Xavier , Malo Christian , Mercier Éric , Chauny Jean-Marc , Clark Gregory , Blanchard Pierre-Gilles , Carmichael Pierre-Hugues , Gariépy Jean-Luc , D’Astous Myreille , Émond Marcel
Published: July 2024

OBJECTIVE

Approximately 10% of patients with mild traumatic brain injury (TBI) present with intracranial bleeding, and only 3.5% eventually require neurosurgical intervention, which often necessitates interhospital transfer. Better guidelines and recommendations are needed to manage complicated mild TBI in the emergency department (ED). The main objective of this study was to derive a clinical decision rule, the Quebec Brain Injury Categories (QueBIC), to predict the risk of adverse outcomes for complicated mild TBI in the ED. The secondary objective was to compare the QueBIC’s performance with those of other existing guidelines.

METHODS

The authors conducted a retrospective multicenter cohort study in 3 level I trauma centers. Consecutive patients with complicated mild TBI (Glasgow Coma Scale [GCS] score 13–15) who were aged ≥ 16 years were included. The primary outcome was a combination of neurosurgical intervention, mild TBI–related death, and clinical deterioration. Statistical analyses included set covering machine analyses.

RESULTS

In total, 477 patients were included in the study. The mean age was 62.9 years, and 68.1% were male. The algorithm classified patients into three risk categories (low, moderate, and high risk). The high-risk group (128 patients) (subdural hemorrhage [SDH] width > 7 mm or any midline shift) presented a sensitivity of 84% (95% CI 71%–93%) and a specificity of 80% (95% CI 76%–84%) to detect neurosurgical intervention and mild TBI–related death, leaving 8 undetected cases. Patients in the moderate-risk group (169 patients) had at least 1 variable: SDH width > 4 mm, initial GCS score ≤ 14, > 1 intraparenchymal hemorrhage, or intraparenchymal hemorrhage width > 4 mm. The combined QueBIC high- and moderate-risk category had a sensitivity of 100% (95% CI 63%–100%) and a specificity of 53% (95% CI 47%–58%) to detect mild TBI–related death or neurosurgical intervention. The sensitivity and specificity values for clinical deterioration when no death or neurosurgical intervention occurred were 81% (95% CI 64%–93%) and 44% (95% CI 39%–49%), respectively. The remaining 180 patients (37.7%) did not meet any high-risk or moderate-risk criteria and were considered low risk. None had neurosurgical intervention or mild TBI–related death. Only 6 (3.3%) low-risk patients showed clinical deterioration.

CONCLUSIONS

QueBIC is a safe and effective tool to guide the management of patients presenting to the ED with complicated mild TBI. It accurately identifies patients at low risk for specialized neurotrauma or neurosurgical care. Further validation is required before its use in EDs.
An analysis of potentially avoidable neurosurgical transfers to a tertiary-care level I trauma center
Authors: Marks Clifford M. , Burke Ryan C. , Stippler Martina , Rosen Carlo L.
Published: July 2024

OBJECTIVE

Previous studies of neurosurgical transfers indicate that substantial numbers of patients may not need to be transferred, suggesting an opportunity to provide more patient-centered care by treating patients in their communities, while probably saving thousands of dollars in transport and duplicative workup. This study of neurosurgical transfers, the largest to date, aimed to better characterize how often transfers were potentially avoidable and which patient factors might affect whether transfer is needed.

METHODS

This was a retrospective cohort study of neurosurgical transfers to an urban, tertiary-care, level I trauma center between October 1, 2017, and October 1, 2022. Prior to data analysis, the authors devised criteria to differentiate necessary neurosurgical transfers from potentially avoidable ones. A transfer was considered necessary if 1) the patient went to the operating room within 12 hours of arrival at the emergency department (ED); 2) a neurological MRI study was conducted in the ED; 3) the patient was admitted to the ICU from the ED; or 4) the patient was admitted to either neurology or a surgical service (including neurosurgery). Transfers not meeting any of the above criteria were deemed potentially avoidable. Patient and clinical characteristics, including diagnostic groupings from Clinical Classification Software categories, were collected retrospectively via electronic health record data abstraction and stratified by whether the transfer was necessary or potentially avoidable. Statistical differences were assessed with a chi-square test.

RESULTS

A total of 5113 neurosurgical transfers were included in the study, of which 1701 (33.3%) were classified as potentially avoidable. Four percent of all transferred patients went to the operating room within 12 hours of reaching the receiving ED, 23.4% were admitted to the ICU from the ED, 26.6% had a neurological MRI study performed in the ED, and 54.4% were admitted to a surgical service or to neurology. Potentially avoidable transfers had a higher proportion of traumatic brain injury, headache, and syncope (p < 0.0001), as well as of spondylopathies/spondyloarthropathies (p = 0.0402), whereas patients needing transfer had a higher proportion of acute hemorrhagic cerebrovascular disease and cerebral infarction (p < 0.0001).

CONCLUSIONS

This study demonstrates that a large number of neurosurgical transfers can probably be treated in their home hospitals and highlights that the vast majority of patients transferred for neurosurgical conditions do not receive emergency neurosurgery. Further research is needed to better guide transferring and receiving facilities in reducing the burden of excessive transfers.
The impact of the Woven EndoBridge device on the treatment of anterior circulation wide-neck bifurcation aneurysms: a single-center experience
Authors: El Naamani Kareem , Momin Arbaz A. , Mouchtouris Nikolaos , Hunt Adam , Lawall Charles L. , Ghanem Marc , Koorie Morena Paula , El-Hajj Jad , Vinjamuri Shreya , Alhussein Abdulaziz , AlHussein Ruyof , Tjoumakaris Stavropoula I. , Gooch M. Reid , Rosenwasser Robert H. , Jabbour Pascal M.
Published: July 2024

OBJECTIVE

The paucity of literature comparing Woven EndoBridge (WEB) embolization to microsurgical clipping for anterior circulation wide-neck bifurcation aneurysms (WNBAs) underscores the need for further investigation into the optimal management of this patient subpopulation. The objective of this study was to compare the rate of endovascular and microsurgical treatment of WNBAs before and after the introduction of the WEB device. In addition, the authors performed a comparison of demographics, aneurysm characteristics, and treatment outcomes in patients before and after the introduction of the WEB device.

METHODS

This study was a retrospective review of the usage rate of different treatment modalities for WNBAs before and after the WEB device was approved by the US FDA on September 27, 2018.

RESULTS

The study cohort comprised 235 patients with anterior circulation WNBAs treated at the authors’ institution, including 127 aneurysms treated pre-WEB and 108 treated post-WEB. Generally, the rate of endovascular treatment of anterior circulation WNBAs was significantly higher post-WEB (86.1% vs 46.5%, p < 0.001), while the rate of clipping was significantly lower (13.9% vs 53.5%, p < 0.001). During follow-up, the rate of adequate aneurysm occlusion (Raymond-Roy occlusion classification [RROC] grades 1 and 2) was nonsignificantly higher in the post-WEB cohort (83.9% vs 78.5%, p = 0.34), while the rate of RROC grade 3 was nonsignificantly higher in the pre-WEB cohort (21.5% vs 16.1%, p = 0.34). Additionally, and although nonsignificant, the rates of recurrence (pre-WEB 25.3% vs post-WEB 14.9%, p = 0.12) and retreatment (pre-WEB 22.8% vs post-WEB 14.9%, p = 0.22) were higher in the pre-WEB cohort. Recurrence was assessed before retreatment.

CONCLUSIONS

After the introduction of the WEB device, the rate of endovascular treatment of WNBAs increased while the rate of microsurgical clipping decreased. It is essential for neurointerventionalists to become familiar with the indications, advantages, and shortcomings of all these different techniques to be able to match the right patient with the right technique to produce the best outcome.
In-hospital outcomes following surgery versus conservative therapy in elderly patients with C2 fractures: a propensity score–matched analysis
Authors: Jiang Sam H. , Wang Ryan K. , Sadeh Morteza , Almadidy Zayed , Mehta Ankit I. , Chaudhry Nauman S.
Published: July 2024

OBJECTIVE

Second cervical vertebrae (C2) fractures are a common traumatic spinal injury in the elderly population. Surgical fusion and nonoperative bracing are two primary treatments for cervical instability, but the former is often withheld in the elderly due to concerns for poor postoperative outcomes arising from patient frailty. This study sought to evaluate the in-hospital differences in mortality, outcomes, and discharge disposition in elderly patients with C2 fractures undergoing surgical intervention compared with conservative therapy.

METHODS

The National Trauma Data Bank was queried from 2017 to 2019 for all patients aged ≥ 65 years with C2 fractures undergoing either surgical stabilization or conservative therapy. Propensity score matching was performed using k-nearest neighbors with replacement based on patient demographics, comorbidities, insurance type, injury severity, and fracture type. Group differences were compared using Student t-tests and Pearson’s chi-square tests with Benjamini-Hochberg multiple comparisons correction. Subgroup analyses were performed in the 65–74, 75–79, and 80+ year age subgroups.

RESULTS

Six thousand forty-nine patients were identified, of whom 2156 underwent surgery and 3893 received conservative treatment. Following matching, the surgery group had significantly lower mortality rates (5.52% vs 9.6%, p < 0.001), a longer mean hospital length of stay (LOS; 12.64 vs 7.49 days p < 0.001), and slightly higher rates of several complications (< 3% difference), as well as lower rates of discharge home (14.56% vs 23.52%, p < 0.001) and to hospice (1.07% vs 2.09%, p = 0.02) and a higher rate of discharge to intermediate care (68.83% vs 48.28%, p < 0.001). Similar trends in mortality and LOS were noted in all 3 subgroups.

CONCLUSIONS

In elderly patients with C2 fractures, surgical stabilization confers a small survival advantage with a slightly higher in-hospital complication rate compared to conservative therapy. The increased rate of discharge to rehabilitation may represent better long-term prognosis following surgery. The increased risk of short-term complications is present but relatively small, thus surgery should not be withheld in patients with good long-term prognosis.
Sleep-disordered breathing in children with Chiari type I malformation
Authors: Jarrell Matthew , Caudill Caroline , Haji Faizal , Leon Tofey , Rozzelle Curtis J. , Maddox Mary Halsey , Rocque Brandon G.
Published: July 2024

OBJECTIVE

The objective was to identify clinical and radiological factors associated with sleep-disordered breathing (SDB) in children with Chiari type I malformation (CIM) and to evaluate the efficacy of foramen magnum decompression (FMD) in resolving SDB.

METHODS

A retrospective chart review was conducted for all children evaluated for CIM at a single institution from 2002 to 2022, identifying all children who had undergone nocturnal polysomnography (PSG). Apnea-hypopnea index (AHI) score, sleep apnea type (obstructive, central, mixed, and unspecified), clinical manifestations, and radiological measurements were recorded. SDB was considered present when officially diagnosed in the PSG report. Logistic regression was performed to identify factors correlating with the presence of SDB. For children with SDB who underwent FMD, the Wilcoxon signed-rank test was used to assess AHI improvement.

RESULTS

Of the 997 children referred for CIM, 310 completed PSG. SDB was diagnosed in 147 patients (overall prevalence 14.7%, 95% CI 12.7%–17.1%; prevalence among children with PSG 47.4%, 95% CI 41.9%–53%). Specific SDB diagnosis consisted of 33% of patients with central sleep apnea, 27% with obstructive sleep apnea, 9% mixed, and 31% unspecified. Lower cranial nerve (CN) dysfunction (OR 3.891, p = 0.009), tonsillar position (OR 1.049, p = 0.017), Chiari type 1.5 malformation (OR 1.862, p = 0.044), and BMI (OR 1.039, p = 0.036) were significantly associated with presence of SDB. Of the 310 patients who underwent PSG, 47 were originally categorized as asymptomatic: 27 (57%) of these asymptomatic patients were diagnosed with SDB on PSG. Of children diagnosed with SDB, 34 completed PSG before and after FMD. Median AHI score decreased from 6.5 preoperatively to 1.8 postoperatively, with a median (IQR) difference of −2.3 (−11.9 to 0.1) (p = 0.001). Twelve (35%) had resolution of SDB.

CONCLUSIONS

The authors’ findings suggest that the prevalence of SDB in children with CIM is high (15%–47%). Furthermore, lower CN dysfunction, Chiari type 1.5, lower tonsillar position, and higher BMI may be risk factors. Notably, SDB can be present even in the absence of clinical symptoms. This study also demonstrates that surgical intervention has the potential to reduce the severity of SDB. These results could help clinicians identify CIM patients at risk for SDB and those who may benefit from surgical decompression.
Contextual Ambiguity Framework for Enhanced Sentiment Analysis
Authors: Yadav Pinky , Kashyap Indu , Bhati Bhoopesh
Published: July 2024

Negation is a universal linguistic phenomenon that affects the performance of Natural Language Processing (NLP) applications, especially opinion mining data. Many words exists in sentences that have multiple interpretations or sentiments depending on how they are placed with respect to the negation word in the sentence. A cutting-edge framework is designed to tackle the nuanced challenge of detecting contextual ambiguity through negation in sentiment analysis. The approach uniquely combines advanced natural language processing techniques with deep linguistic insights, enabling the accurate interpretation of sentiment in complex sentences where negation plays a key role. The framework identifies negation cues and their scope, then assesses their impact on sentiment, considering contextual dependencies and word semantics. The model's innovation lies in context-sensitive algorithms that adeptly handle different sentence structures and idiomatic expressions, a notable advancement over traditional sentiment analysis tools. Particularly effective in interpreting sarcastic or ironic statements, the framework significantly outperforms existing models in accuracy, especially in negation-heavy contexts. This advancement enhances sentiment analysis applications like social media monitoring and customer feedback analysis, offering a more nuanced understanding of public opinion.
Injection Moulded Part Analysis by Alignment of Simulated and Referent Part Geometry
Authors: Godec Damir , Panđa Filip , Tujmer Mislav
Published: July 2024

Warpage of the injection moulded parts is one of the most common defects after demoulding, which is intensively present in thin-walled moulded parts or parts with non-uniform wall thickness. The level of the warpage can be reduced by optimizing the mould tempering system in the phase of mould design, by optimizing the injection moulding parameters and recently by optimizing the shape of the mould cavity elements geometry – so-called inverse contouring. Computer simulation of injection moulding process can show the level of moulded part warpage after ejection from the mould, but it will not allow detailed measuring of critical moulded part measures deviations. Detailed analysis and prediction of the critical moulded part dimensions can be performed by aligning of the deformed moulded part design obtained with computer simulation, with moulded part reference CAD geometry. This paper shows the main steps and an example of the geometry aligning process for a specific thermoplastic part.
A Maturity Model to Determine the Degree of Utilization of Machine Learning in Production Planning and Control Processes
Authors: Hartl Jakob , Bock Jürgen
Published: July 2024

The presented work introduces a maturity model for evaluating Machine Learning implementations, with a primary focus on Production Planning and Control processes, as well as broader organizational and technical aspects in companies. This model emerges as a response to the research gap identified in the analysis of 14 existing maturity models, which served as foundational bases for the development of this novel approach. By examining success factors and obstacles at different maturity levels, categorized according to defined dimensions and overarching design fields, this model can serve as a catalyst for bridging the research gap between models demanded in practice and the scholary exploration of topics related to Machine Learning in corporate processes. Notably, the structured design of this maturity model ensures accessibility for small and medium sized enterprises (SMEs).
De la variación tipológica a la variación intralingüística (y viceversa): el caso de los familectos
Authors: Benítez Burraco Antonio ,   Universidad de Sevilla, Felíu-Arquiola Elena ,   Universidad de Jaén
Published: July 2024

Los estudios de tipología sociolingüística sugieren que diversos factores sociopolíticos podrían explicar parte de los rasgos estructurales de las lenguas y, en particular, en qué dominios resultan más complejas o más simples. Así, las lenguas habladas por sociedades cerradas (denominadas esotéricas) presentan una fonología y una morfología más compleja y una menor transparencia semántica, mientras que las usadas por sociedades abiertas (o exotéricas) manifiestan una mayor complejidad sintáctica y un mayor grado de composicionalidad semántica. En este artículo se defiende la utilidad de considerar este tipo de trabajos para una mejor comprensión de la variación intralingüística, el objeto principal de interés de la sociolingüística (sobre todo, la variacionista). En concreto, se propone extender el ámbito de aplicación de los conceptos esotérico y exotérico al estudio de la variación social del español. Para ilustrar un programa de análisis de este tipo se discute el caso de los familectos, esto es, las variedades de la lengua asociadas a las unidades familiares. Se propone un protocolo de análisis de estas variedades, que incluye una lista de rasgos estructurales de interés definidos a partir de la hipótesis de que los familectos pueden describirse e interpretarse satisfactoriamente en términos de usos esotéricos de la lengua estándar, con características distintivas que los diferencian hasta cierto punto de otras variedades del vernáculo, en particular, del español oral informal.
Pengaruh Lab Matematika Virtual Terhadap Hasil Belajar Matematika Siswa SDN 80 Parepare
Authors: Denny Kurniawan  , Nurhaedah P
Published: July 2024

This study aims to determine that the use of the Lab Matematika Virtual application has a positive effect on mathematics learning outcomes for grade V students of UPTD SD Negeri 80 Parepare. This type of research is a quasi-experiment without a control class which is carried out in one group. The variables studied in this study were the mathematics learning outcomes of class V students of UPTD SD Negeri 80 Parepare as the dependent variable and learning by using the Lab Matematika Virtual application as the independent variable.
 The population of this research is all students of class V UPTD SD Negeri 80 Parepare for the academic year 2021/2022. Sampling was done by saturation sampling, the sample of this research is all students of class V. The instruments used in this research are learning outcomes tests and student response questionnaires that have been validated. Based on descriptive statistical analysis, the average value of mathematics learning outcomes before learning using the Lab Matematika Virtual application is 10 and the average value of mathematics learning outcomes after learning using the Lab Matematika Virtual application is 65,71. So it can be concluded that the use of the Lab Matematika Virtual application has a positive effect on mathematics learning outcomes in class V students of UPTD SD Negeri 80 Parepare.
Study of the composition of the KCl – AlCl3 – ZrCl4 – HfCl4 melt in relation to extractive rectification of zirconium and hafnium chlorides
Authors: Panfilov A. V. , Korobkov A. V. , Buzmakov V. V. , Tereshinb V. V. , Ivshina A. A. , Abramov A. V. , Danilov D. A. , Chukin A. V. , Polovov I. B.
Published: July 2024

In 2021, Chepetsk Mechanical Plant SC put into operation the production of a zirconium sponge of nuclear purity for the production of nuclear fuel components. The purification of zirconium from hafnium is carried out by extractive rectification in a KCl–AlCl3 melt. The experience of the plant operation has shown that the elemental analysis of the melt for the content of K, Al, Zr, Hf is not enough to determine its operational properties.
During the operation of the plant at various points of the technological scheme, the composition of the melt KCl–AlCl3–ZrCl4–HfCl4 was studied by a complex of independent methods using specially developed methods.
The content of the phases ZrCl4, K2ZrCl6 and AlCl3 against the background of the matrix phase KAlCl4 was studied in frozen melts by X-ray diffractometry. The regularities of changes in the content of ZrCl4, AlCl3 and K2ZrCl6 according to the technological scheme of the installation are established.
The content of the X-ray amorphous component, which contains up to 1.5 wt% aluminum and up to 3.5 wt% zirconium, has been established in frozen melts. By the method of reducing melting in the presence of carbon in frozen melts, the oxygen content of up to 1.8 wt% was determined, which is part of the X-ray amorphous component, presumably consisting of AlOCl and ZrOCl2.
A method for determining the AlCl3/KCl ratio based on the difference in the physicochemical properties of the melt components has been developed. Based on the results obtained, the melt composition was adjusted during the operation of the zirconium and hafnium chloride separation unit at ChMP JSC.
Kajian Yuridis Asset Recycling BUMN (Studi Kasus Asset Recycling PT Hutama Karya (Persero)
Authors: Adha Gantara Witon , Sadino  , Lutfi Anas
Published: July 2024

Cita-cita pemerintah dalam hal pengembangan Infrastruktur di Indonesia mengalami tantangan besar. Pengembangan infrastruktur memiliki visi utama yaitu pembangunan nasional yang bertujuan mewujudkan pertumbuhan ekonomi yang berkelanjutan dan inklusif. Data The Global Competitiveness Report tahun 2019 menyatakan bahwa daya saing infrastruktur Indonesia masih tertinggal jauh dari negara-negara lain di dunia. Pemerintah Indonesia melakukan trobosan untuk percepatan perkembangan infrastruktur didaerah Sumatera melalui Pembangunan Jalan Tol Trans Sumatera (“JTTS”). Dalam hal ini PT Hutama Karya (Persero) (“PTHK”) melalui Peraturan Presiden Nomor 117 Tahun 2015 tentang Perubahan Atas Peraturan Presiden Nomor 100 Tahun 2014 tentang Percepatan Pembangunan Jalan Tol di Sumatera ditunjuk oleh Pemerintah untuk melakukan pengusahaan jalan tol 24 Ruas Jalan Tol JTTS tsersebut yang dinilai layak ekonomi namun secara keseluruhan tidak layak finansial. Dalam ruas jalan tol yang sudah terbangun dan teroperasikan PTHK menghadapi resiko negative cashflow akibat rendahnya volume Lalulintas Harian (“LHR”). Hal ini mendorong aksi korporasi berupa Asset Recycling atas ruas terbangun dan yang sudah beroperasi untuk melanjutkan konstruksi ruas-ruas selanjutnya. Bagaimana ketetapan hukum PTHK sebagai badan usaha yang melakukan pengusahaan jalan tol yang layak ekonomi namun tidak layak finansial? serta bagaimana hukum Indonesia mengatur Asset Recycling BUMN?
PENGARUH LITERASI KEUANGAN DAN INOVASI DIGITAL TERHADAP KINERJA UMKM
Authors: Widiastuti C Tri , Universari Nuria - , Emaya Kurniawat -
Published: July 2024

Pelaku UMKM tidak dapat dipisahkan dari isu perkembangan ekonomi digital yang berperan penting dalam menentukan tingkat keberhasilan UMKM. Target riset ini untuk menganalisis bagaimana literasi keuangan dan inovasi digital mempengaruhi kinerja keuangan UMKM. Riset ini mengaplikasikan teknik kuantitatif untuk menilai variabel bebas literasi keuangan (X1) dan inovasi digital (X2) atas variabel terikat kinerja UMKM (Y). Populasi UMKM Kuliner di Kecamatan Semarang Barat. Pengambilan sampel dilakukan secara purposive sampling. Pendekatan penghimpunan data dengan kuesioner diukur menggunakan skala likert. Metode penelaah menggunakan Partial Least Squares (PLS) melalui aplikasi SmartPLS 3.0. Literasi keuangan dan inovasi digital, menurut temuan penelitian, memberikan dampak positif dan signifikan terhadap kinerja UMKM. R square variabel kinerja UMKM sebanyak 0,606. Artinya variabel laten literasi keuangan dan inovasi digital dapat menjelaskan 60,6% variasi kinerja UMKM. Dan selebihnya 39,4% diterangkan oleh komponen yang tidak dikaji dalam riset ini. Implikasinya, pelaku UMKM mampu memperluas akses, meningkatkan pemodalan dan kinerja UMKM sehingga usahanya terus tumbuh dan berkelanjutan.MSME players cannot be isolated from the issue of digital economic development, which is critical in defining MSMEs' level of success. Investigating the effects of digital innovation and financial literacy on MSMEs' financial performance is the goal of this study. The independent variables financial literacy (X1) and digital innovation (X2) on the dependent variable MSME performance (Y) are assessed using quantitative methodologies in this study. Culinary MSMEs populate the West Semarang District. Purposive sampling was used to collect data. A Likert scale was used to assess the data-gathering strategy with a questionnaire. The review approach employs the SmartPLS 3.0 program and Partial Least Squares (PLS). Financial literacy and digital innovation, according to research findings, have a favorable and significant impact on MSME success. The R-square value for the MSME performance variable is 0.606. That is, 60.6% of the variance in MSME performance can be explained by the latent variables of financial literacy and digital innovation. The remaining 39.4% is explained by variables not examined in this study. The implication is that MSME players can broaden access, raise finance, and improve MSME performance, allowing their firms to develop and be sustainable.
Pengelolaan Sampah dalam Sudut Pandang Administrasi Publik pada Kabupaten Tabalong
Authors: Ifansyah Muhammad Noor
Published: July 2024

Permasalahan sampah di Indonesia terus menjadi persoalan yang belum dapat sepenuhnya diatasi. Pertumbuhan timbulan sampah di Indonesia selama tiga tahun terakhir 2020-2023 terus mengalami peningkatan yaitu berjumlah sebesar 37.370.425 Ton/thn . Dalam ranah global pengelolaan sampah merupakan kerangka Tujuan Pembangunan Berkelanjutan Perserikatan Bangsa-Bangsa. Berdasarkan beberapa penelitian terdahulu menunjukkan bahwa pengelolaan sampah erat kaitannya dengan pencapaian beberapa tujuan pembangunan berkelanjutan. Penelitian ini bertujuan mengetahui pengelolaan sampah dalam sudut pandang administrasi publik dilihat dari kontek good governance. Penelitian ini didesain menggunakan studi pustaka yang secara teoritis, studi pustaka. Analisis dilakukan dengan menggunakan konsep triangulasi data dari berbagai sumber pustaka yang ditemukan dengan mengacu pada pemikiran model analisis interaktif yang dikembangkan oleh (Miles, Matthew B. Huberman, A Michael. Saldana, 2014). Hasil analisis kemudian dijadikan rangkuman yang dapat ditarik kesimpulan tentang topik penelitian. Kebijakan pengelolaan sampah yang telah ada di Kabupaten Tabalong sangatlah penting dalam menjamin berlangsungnya pengelolaan sampah yang berkelanjutan. Sehingga dengan adanya kebijakan yang mengatur tentang pengelolaan sampah memainkan peran penting dalam upaya memerangi timbulan sampah yang terus bertambah. Di Nola et al., dalam penelitiannya menyarankan model pendekatan dinamis dalam pembuatan kebijakan pengelolaan sampah berkelanjutan. Bahkan Manaf, et al. menekankan pada restrukturisasi lembaga dan penyusunan kebijakan baru perlu dibuat dalam rangka membangun sistem pengelolaan sampah yang holistik, terintegrasi dan hemat biaya. Pada pengelolaan sampah pada Kabupaten Tabalong Pemerintah Kabupaten Tabalong melimpahkan kegiatan persampahan pada Dinas Lingkungan Hidup yang kemudian melibatkan masyarakat sebagai pelaku utama kegiatan. Sampah yang telah dipilah tidak akan memiliki nilai apabila pengepul tidak bersedia membeli. Sehingga guna memberikan jaminan keberlangsungan sirkulasi penjualan pilah sampah, Dinas Lingkungan Hidup terus memberikan pendampingan dan bekerjasama dengan pengepul. Sehingga sangat penting bagi masyarakat mengetahui kegiatan pengelolaan sampah yang telah dilakukan dan akan meningkatkan partisipasi masyarakat.
Penyelesaian Konflik Pemilihan Umum Di Republik Afrika Tengah Oleh Dewan Keamanan Pbb Melalui Minusca Tahun 2020-2021
Authors: Martin Ali
Published: July 2024

Penelitian ini menganalisis tentang konflik dan resolusi konflik oleh organisasi internasional yaitu Dewan Keamanan United Nations yang terjadi di Republik Afrika Tengah ketika diadakan Pemilihan Umum di tahun 2020-2021, dengan lembaga misi perdamaiannya MINUSCA (Multidimentional Integrated Stabilization Mission in The Central African Republic). Tujuan yang hendak dicapai dalam penelitian ini adalah untuk mengetahui peran apa saja yang dilakukan MINUSCA ketika konflik di Afrika Tengah tersebut terjadi. Dalam menguraikan permasalahan yang terjadi, penulis menggunakan metode penelitian Kualitatif Eksplanatif yang menjelaskan apa dibalik kejadian tersebut serta resolusi konflik yang terjadi di Republik Afrika Tengah, dengan metode pengumpulan data sekunder dan data primer melalui wawancara kepada salah satu anggota satgas KIZI G-37 MINUSCA Indonesia yang bertugas disana, dari beberapa sumber literatur, jurnal, media sosial, berita dan buku. Pada penelitian ini, penulis menemukan beberapa alasan Dewan Keamanan PBB mengirimkan pasukan MINUSCA di Republik Afrika Tengah, salah satunya yaitu untuk melaksanakan tugas dan fungsinya sebagai organisasi keamanan dan perdamaian internasional.
UTILIZATION OF CINNAMON BARK (CINNAMOMUM BURMANNI) EXTRACT AS A NATURAL INHIBITOR FOR THE CONTROL OF CORROSION RATE IN IRON METAL
Authors: Sembiring Aggryppyne Keyne Oberta , Putra Anak Agung Bawa , Ratnayani Oka
Published: July 2024

Iron is a metal that is very susceptible to corrosion. Corrosion of iron can occur due to reaction with the surrounding environment, causing damage to ferrous metal. The use of organic inhibitors such as cinnamon bark is considered to be able to suppress the corrosion rate, because in the inhibitor there are tannin compounds that are able to form complex compounds with Fe(III) on the metal surface. Bark consists of an tannins, makes this cinnamon bark capable of being an organic inhibitor. The purpose of this riset was to determine the effect of inhibitor concentration and variation of corrosive media on the corrosion rate, and to determine whether cinnamon bark extract had the potential to be used as an inhibitor. The method used is weight loss in which iron is immersed in various corrosive media for 48 hours without the addition of inhibitors and with the addition of inhibitors of 10; 20; 30; 40; 50; 60; 70; 80; 90; and 100 ppm. The highest corrosion rate without the addition of inhibitors occurred in iron immersed in salt media (NaCl 3.5%) of 53.5371 mpy, and the lowest corrosion rate occurred in iron immersed in neutral media (aquadest) of 15.6342 mpy. The corrosion rate also decreases with the increase in the concentration of the added inhibitor. In other words, this cinnamon bark extract has the potential to be used as an organic inhibitor.
ANALYSIS OF STUDENTS’ CREATIVE THINKING ABILITIES IN SOLVING PROBLEMS IN CHEMICAL BONDING MATERIAL FOR CLASS X SMA IN THE TOGEAN ISLAND
Authors: Pulukadang Sri Hastuti Virgianti , Indasari Indasari , Afadil  , Mustapa Kasmudin
Published: July 2024

Creative Thinking is the ability possessed by someone to think continuously and consistently in producing everything that is creative and original. This study aims to analyze students' creative thinking skills in solving problems in chemical bonding material for class X high school in the Togean Islands, namely taking place in two schools, namely SMA Negeri 1 Togean and SMA Negeri 1 Una- Una. The method used in this research is descriptive. The sample in this study was students of class X mipa SMA Negeri 1 Togean totaling 21 students consisting of 10 boys and 11 girls and for SMA Negeri 1 Una-Una totaling 19 student consisting of 13 boys and 6 girls. The data collection instrument used a practice test of essay questions in the form of a description of students' creative thinking abilities on chemical bonding material as many as 8 items. The result obtained for SMA Negeri 1 Togean, the fluency indicator is 76.66% in the high category, the Flexibility indicator is 60.47% in the medium category, the Originality indicator is 45.71% in the low category and the Elaboration indicator is 31.90% in the very low and for SMA Negeri 1 Una-Una the Fluency indicator is 66.31% with the medium category, the Flexibility indicator is 76.31% with the high, the Originality indicator is 52.10% with the low category and the Elaboration indicator is 35.78% with very low category. The result of the average creative thinking ability of students for SMA Negeri 1 Togean is 53.68% is in the low category, and SMA Negeri 1 Una-Una is 57.63% and is in the low category. Based on the result of the study it can be concluded that students' creative thinking abilities are in the low category, one of the reasons is due to the laziness factor of each student in participating in ongoing learning which triggers students not to think creatively, especially in chemical bonding material
SYNTHESIS AND CHARACTERIZATION OF MONTMORILLONITE/TiO2 COMPOSITES AS A PHOTOCATALYST IN REDUCING BOD AND COD OF DOMESTIC WASTEWATER
Authors: Hayati Ismi , Bawa Putra Anak Agung , Sutha Negara I Made
Published: July 2024

The development of hotels in Bali is increasing every year, this is directly proportional to the number of tourists and the waste generated. Hotel liquid waste has the potential to pollute the environment if there is no pre-disposal treatment. This study aims to obtain the best MMT/TiO2 composite that acts as an adsorbent and photocatalytic in reducing BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) levels of domestic wastewater. Composite synthesis was carried out by combining the top-down method, ball milling, and sonication. The ball milling method is used to produce montmorillonite, which has a smaller size, with a ball mass to sample mass ratio of 2:1 at a speed of 250 rpm. Variations in milling times of 0, 2, 4, and 6 hours were applied to determine the effect of milling time. The sonication method was used to obtain a smaller TiO2 particle size by exposing it to ultrasonic waves for 30 minutes. Calsination of the composite was carried out at a temperature of 400 Â°C. The results of composite characterization using the PSA (Particle Size Analyzer) showed that the composite did not meet the nanoparticle requirements because it had a particle size > 100 nm with a PI value > 0.5, which was still classified as polydispersity. NMT 6 has the best PI value of 0.65, which is then used to determine the optimum composite time to reduce BOD and COD levels. The optimum irradiation time obtained from composites in degrading waste is 90 minutes, which can reduce BOD levels by 78.53% and COD levels by 69%. The ability of composites NMT-6 to reduce BOD and COD levels is greater than that of montmorillonite and TiO2.
MANUFACTURING VIRGIN COCONUT OIL (VCO) THROUGH THE SALT METHOD
Authors: Silalahi Lora , Daniel Gilbert
Published: July 2024

This research aims to determine the effect of adding CaCl2 salt on the yield results. Old coconuts taken are 12 months old. 12 coconuts are grated to produce 600 kg of grated coconut and then filtered to produce 1200 mL of coconut milk. Add 2 grams, 4 grams and 6 grams of CaCl2 to each coconut milk and stir for 10 minutes. Coconut milk is heated at 100°C for 120 minutes using a hotplate. Then coconut oil was produced and an organoleptic test was carried out with the results of a typical coconut aroma, clear color and tasteless taste of the coconut oil. Then to produce the best yield it is 23.20% and the optimum water content is 2 grams with a concentration of 0.17%. The higher the CaCl2 level, the greater the yield of VCO produced and the water content produced will be of good quality. The best quality VCO is VCO that does not use contaminated or old coconut, has a distinctive coconut aroma and fresh taste, does not contain odor or taste. which is unusual and the color is relatively clear and clear. Meanwhile, poor quality VCO means using chemicals or excessive heating during extraction, it doesn't smell fresh or tastes strange, the color is cloudy or too dark and contains additives or other additives that shouldn't be there.
USE OF BENTONITE-CHITOSAN MIXTURE AS AN AMMONIUM SULFATE CARRIER IN MANUFACTURING SLOW RELEASE FERTILIZER
Authors: Tobing Marta , Suarya P. , Prayikaputri P. U
Published: July 2024

Nitrogen is a nutrient that is needed for the process plant growth, but nitrogen is easily carried away by water and evaporates, it causes farmers to fertilize excessively. This cause environmental pollution. The aim of this research is to make slow release fertilizer (SRF) with a bentonite-chitosan-ammonium sulfate formula to increase fertilization efficiency. Mixing was using the liquid-liquid method where 50 mL of 20% (NH4)SO4 was mixed with 20% bentonite-1% chitosan in a ratio of 10:0; 10:20; 20:20; 30:20; 40:20; 50:20. The highest total nitrogen content was obtained in SRF with a bentonite-chitosan ratio of 0:50 (3.94%) which was tested using the Kjeldahl method. Comparison of release tests on SRF and pure fertilizer was carried out every day for 6 days, SRF increased slowly, namely from 0.07%; 0.18%; 0.27%; 0.6%; 0.42%; 0.5%while in 20% (NH4)SO4 fertilizer there was a release of 0.07%; 0.18%; 0.27%; 0.6%; 0.42%; 0.5%%. Nitrogen release in SRF is slower than in ammonium sulfate fertilizer