bluuebunny/crossref_metadata_2025 huggingface dataset:
YOLO-ECG: multi-stage ECG arrhythmia classification using deep learning based YOLO network for portable monitoring
Authors: Jenifer L. , Radhika S.
Published: December 2023

Cardiovascular disease is the leading cause of death and more than half million people were died around the world. However, cardiovascular health monitoring is crucial for effective heart disease diagnosis and management. In this paper, a novel deep learning-based YOLO-ECG model is proposed to ECG arrhythmia classification method for portable monitoring. Initially, the ECG signals are gathered using 12-lead electrodes in the real time and these signals are denoised using two-dimensional stationary wavelet transform (2D-SWT). In SWT, zeros are inserted between filter taps rather than decimal points to eliminate repetitions and increase robustness. The denoised ECG signals are fed into the deep learning-based YOLO network with Gaussian error linear unit (GELU) activation function for detecting the ECG abnormalities of arrythmia. ECG waveforms are analyzed for the local fractal dimension at each sample point before heartbeat waveforms are extracted within a set length window. A squeeze and excitation attention (SEAN) module is introduced in the YOLO network for selecting size of 1D convolution kernel, and the dimension is preserved during local cross-channel interactions, decrease network complexity and enhance model efficiency. The classification findings demonstrate that the proposed YOLO-ECG model performs better by ECG recordings from the MIT-BIH arrhythmia dataset. From the experimental analysis, the proposed YOLO-ECG model yields the overall accuracy of 99.16% for efficient classification of arrythmia ECG signals.
Risdiplam Real World Data – Looking Beyond Motor Neurons and Motor Function Measures
Authors: Sitas Barbara , Hancevic Mirea , Bilic Katarina , Bilic Hrvoje , Bilic Ervina
Published: December 2023

Background:

Risdiplam is an orally administered treatment for spinal muscular atrophy which leads to an improvement in motor function as measured by functional motor scales compared with placebo. Although risdiplam has been registered since 2020, real-world data in adults is still scarce. There have been no new safety signals so far, with some results pointing that risdiplam may be effective

Objective:

The objective was to present real-world data of 31 adult patients with spinal muscular atrophy type 2 and type 3 treated with risdiplam in the Republic of Croatia

Methods:

Treatment effects were assessed with motor function tests and patient reported outcome measures, including Individualized Neuromuscular Quality of Life questionnaire, and Jaw Functional Limitation Scale. Side effects, as well as subjective improvements and symptoms, were noted.

Results:

Majority of patients did not report any side effects. During treatment, we have observed clinically meaningful improvements in some patients, with stabilization of motor functions in the remaining patients. The majority of patients with bulbar function impairment experienced bulbar function improvement, all patients reported an increased quality of life with treatment. An unexpected observed treatment effect was weight gain in a third of all patients with some patients reporting an increase in appetite and subjective improvement in digestion.

Conclusions:

Risdiplam treatment was well tolerated with subjective and objective positive outcomes registered as measured by functional motor scales and patient-reported outcomes. Since risdiplam is administered orally and acts as a systemic therapy for a multisystemic disorder, effects in systems other than neuromuscular can be expected and should be monitored. Due to systemic nature of the disease patients need multidisciplinary monitoring.
The influence of late prematurity on the encephalopathy exam of infants with neonatal encephalopathy
Authors: Kodidhi A. , Riley M. , Vesoulis Z.
Published: December 2023

BACKGROUND:

Late preterm (LPT) infants are increasingly treated for hypoxic-ischemic encephalopathy (HIE). However, neurodevelopmental differences of LPT infants may independently influence the neurologic exam and confound care.

METHODS:

Perinatal and outcome characteristics were extracted along with the worst autonomic and state/neuromuscular/reflex Sarnat components in a cross-section of infants with moderate/severe HIE. Infants were classified as late preterm (LPT, 34–36 weeks) or term (>36 weeks).

RESULTS:

250 infants were identified, 55 were late preterm. LPT infants had lower mean gestational age and birthweight and greater length of stay (LOS). LPT infants had higher median scores for the Moro and respiratory autonomic components, but no difference in total score.

CONCLUSIONS:

LPT infants had increased LOS, worse Moro reflex, and respiratory status, but no clinically or statistically significant differences in total Sarnat scores. Although it is important to note the impact of immaturity on the exam, it is unlikely to independently alter management.
Hypothermia on admission and its association with neonatal mortality and morbidity in neonatal intensive care unit
Authors: Mostafa M.A. , AbdelHaie O.M. , Abdelmegiud S.A. , Lasheen B.K.M. , Zakaria R.M.
Published: December 2023

BACKGROUND:

Neonatal hypothermia is a drop in the newborn’s core temperature less than 36.5°C. It is crucial in neonatal morbidity and mortality, particularly in preterm infants. This research aimed to assess the incidence and risk factors of neonatal hypothermia and its effect on neonatal mortality and short-term morbidity during Neonatal Intensive Care Unit (NICU) admission.

METHODS:

This observational study was conducted on all neonates admitted to the NICU at Benha University Hospital. The core temperature was measured on admission for all admitted neonates and were followed up to assess the impact of hypothermia on short-term outcomes and mortality.

RESULTS:

A total of 323 neonates were admitted to the NICU throughout the research period. Thirty-five cases were excluded due to congenital anomalies or missing or late admission temperature recordings. The study included 288 neonates whose mean gestational age was 34.6±3.4 weeks, and their mean birth weight was 2.35±0.9 kg. Two-thirds (66%) of the neonates had core temperatures indicating hypothermia (axillary temperature of less than 36.5°C), one-third (33%) were normothermic, and only three (1%) were hyperthermic. Neonates with hypothermia had statistically lower gestational age, higher frequency of multiple births, prolonged need for respiratory support, higher rates of pulmonary hemorrhage, sepsis, intraventricular hemorrhage (IVH), and necrotizing enterocolitis, longer hospital stay, and mortality.

CONCLUSIONS:

There is a high incidence of neonatal hypothermia at NICU admission. Lower gestational age, increased multiples, lower APGAR score, lower birth weight, and lack of antenatal steroids were significantly associated with hypothermia at NICU admission. Hypothermia was found to be a significant factor contributing to increased mortality and morbidity rates in affected neonates.
On security of GIS systems with N-tier architecture and family of graph based ciphers
Authors: Ustimenko Vasyl O. , Pustovit Oleksandr S.
Published: December 2023

Discovery of q-regular tree description in terms of an infinite system of quadratic equations over finite field Fq had an impact on Computer Science, theory of graph based cryptographic algorithms in particular. It stimulates the development of new graph based stream ciphers. It turns out that such encryption instruments can be efficiently used in GIS protection systems which use N-Tier Architecture. We observe known encryption algorithms based on the approximations of regular tree, their modifications defined over arithmetical rings and implementations of these ciphers. Additionally new more secure graph based ciphers suitable for GIS protection will be presented.Algorithms are constructed using vertices of bipartite regular graphs D(n,K) defined by a finite commutative ring K with a unit and a non-trivial multiplicative group K*. The partition of such graphs are n-dimensional affine spaces over the ring K. A walk of even length determines the transformation of the transition from the initial to the last vertex from one of the partitions of the graph. Therefore, the affine space Kn can be considered as a space of plaintexts, and walking on the graph is a password that defines the encryption transformation.With certain restrictions on the password the effect when different passwords with K*)2s, s <[(n+5)/2]/2 correspond to different ciphertexts of the selected plaintext with Kn can be achieved.In 2005, such an algorithm in the case of the finite field F127 was implemented for the GIS protection. Since then, the properties of encryption algorithms using D(n, K) graphs (execution speed, mixing properties, degree and density of the polynomial encryption transform) have been thoroughly investigated.The complexity of linearization attacks was evaluated and modifications of these algorithms with the resistance to linearization attacks were found. It turned out that together with D(n, K) graphs, other algebraic graphs with similar properties, such as A(n, K) graphs, can be effectively used.The article considers several solutions to the problem of protecting the geological information system from possible cyberattacks using stream ciphers based on graphs. They have significant advantages compared to the implemented earlier systems.
An analysis of the influence of the biofilm heterogeneity on the effectiveness of organic pollution removal in bioreactors
Authors: Oliynyk Oleksandr Y. , Telyma Sergiy V. , Kalugin Yuriy I. , Oliynyk Yevheniy O.
Published: December 2023

A mathematical model of biological purification of wastewater from organic pollutants in the conditions of an aeration tank with a fixed biocenosis (biofilm of microorganisms) is presented. At the same time the peculiarities of the formation and modeling of a complex heterogeneous stratified structure of a biofilm with variable processes and parameters along its thickness are considered and taken into account on in particular the processes of mass transfer and concentration of microorganisms. It shown that the treatment processes in heterogeneous stratified biofilm are designated by the effective diffusion coefficient which is depended on the pollutions concentration. Owing to that the pollutions concentration is changing of along the biofilm thickness and increase from the surface to the biofilm bottom the decreasing of the effective diffusion coefficient is observed. On the base of the provided experimental investigations the change of the effective diffusion parameter along the biofilm thickness may be specified according to linear law. The quantity criteria of the first and zero order kinetic and Monod equation were used in the practical calculations. Ascertain that the substrate removal have a place on the early part of the biofilm which amounts to 20–25% from the its full thickness. On the base of the created biofilm model of the heterogeneous-stratified structure the comparative analysis and valuation of the different investigations of the pollutions removal during the treatment processes at using of the homogeneous and heterogeneous structure of the biofilm were treated. It was designated that the pollutions removal effectiveness depends on the biofilm features. So at the some main parameters the homogeneous and stratified biofilms indicate almost the same microbial activity and the difference depends on the effective diffusion coefficient on the biofilm output. In the dependence on the hydrodynamic conditions of the treatment processes the homogeneous biofilm activity may be lower, higher or similar one of the stratified biofilm. Heterogeneous biofilm has the lower activity near the biofilm bottom at the high values of the effectiveness coefficient than the homogeneous one at the average values of this coefficient and the substrate against of the which the microorganisms growth is depended on to penetrate more in depth in stratified biofilm than in homogeneous one.
Determinant of Vaccination Status among Children Under Five years in Mattu Town, Oromia Regional State, Ethiopia
Authors: A D , Dugasa Dabala Jabessa , Tadesse Ayele , Zeleke Abate Tadesse
Published: December 2023

BACKGROUND: vaccination prevents 2-3 million deaths from diphtheria, tetanus, and measles. The research conducted in Ethiopia showed that only 50% of under-five year-old-children fully complete their vaccination. Therefore, this study aimed to assess vaccination status and associated factors among under-five year-old-children in Mattu town.

METHODS: The structured questionnaires were used to collect data from 118 children in the study area. To assess the determinant factors of vaccination status among children under-five year, the Chi-square test of association and Binary logistic regression were used, and data was analyzed using SPSS 20.

RESULTS: Of a total of 118 children, only 68 (57.6%) completed the vaccination, and 50(42.4%) of them did not complete their vaccination. The result from logistic regression revealed that vaccination status children under-five year was significantly related to the marital status mother’s (Widowed: p-value: 0.007; CI:1.701, 28.818), educational status of the household head (illiterate: p-value: 0.032; CI:0.024, 0.848), monthly income of the household (income>154.9 USD: p-value: 0.024; CI: 1.322, 48.460), and residence area of the household (Urban: p-value: 0. 015; CI: 1.297, 10.981).

CONCLUSIONS: The findings of this study showed that marital status, educational status, income, and residence were the major factors associated with incomplete vaccination status among under-five age children. Therefore, there is urgent need to fill the immunization gap in the area through vaccination campaigns by health offices and public health education and by extension workers.
The Consumption of Iceberg Lettuce May Reduce The Adhesion of Dietary Fat to The Mucus Surface of The Stomach Barrier Lining Decreasing The Risk of Triggering Acute Gastroesophageal Reflux
Authors: Hurr Thomas
Published: December 2023

Iceberg lettuce (IL) leaves contain surface epicuticular waxes that can adsorb significant quantities of dietary fat per unit weight. Fats such as olive oil, butter, lamb fat and lard readily adsorb onto IL with soft solid fats contained in lamb fat and lard, showing strong adhesion and more resistance to removal on rinsing in a water stream. Dishwashing detergents containing surfactants prevent the adsorption of both liquid and solid fats to the lettuce leaf surface, unless at very low concentrations, highlighting their significant influence on surface properties. Based on the adhesion of fats to the IL leaf surface, it is proposed the consumption of IL could reduce acute gastroesophageal reflux (GER) and the development of gastroesophageal reflux disease (GERD). In diets containing fat, the adhesion to IL reduces the amount of fat available to adhere to the mucus surface of the stomach barrier lining, protecting the lining and reducing access by trigger foods to underlying surfaces that could potentially initiate GER.
РАЦІОНАЛЬНЕ ПРОЕКТУВАННЯ КОМПОЗИТНОГО КУЛЯБАЛОНУ З ПОЛІМЕРНИМ ЛЕЙНЕРОМ
Authors: Івановський В. С. , Івановська О. В. , Буркун С. В.
Published: December 2023

The analysis of existing composite cylinders made by winding reinforcing materials on a polymer binder is carried out. The analysis showed that the design methods and manufacturing technology of cylindrical metal composite and composite cylinders are well developed, and the design and manufacturing technology of spherical balloon is based on an empirical approach. This is due to the fact that such cylinders are wound with a multiple family of layers in which reinforcing materials are laid at different angles to the axis of the cylinder. At the same time, the composite layer being created represents a statically indeterminate system, and it is impossible to design the thickness values of the reinforcing material in the layers without involving deformation equations.The paper presents a method of designing a composite balloon with a polyethylene liner on the example of a specific design. The method consists in preliminary calculation of the thickness values of the reinforcing material of the spiral and annular layers for a cylindrical cylinder with a cylindrical part of zero length. Since it is impossible to wind a cylindrical layer on the surface of the ball, we distribute the resulting thickness of the annular layer evenly into multi-zone layers. At the next stage, we calculate the relative deformation of the reinforcing material in each layer in the direction of reinforcement and compare it with the permissible one, taking into account the safety factor. In those layers where the deformation is greater than the permissible one, we increase the thickness, and again we find the relative deformation. The calculation is repeated until the permissible relative deformation is reached in all layers. It should be noted that this technique makes it possible to obtain a design of a cylinder of minimal mass and can be used for the design of cylindrical metal-composite and composite cylinders with multi-zone winding of spiral layers
Priests of Kulazhyntsi village of the second half of the 18th century
Authors:   Poltava V.G. Korolenko National Pedagogical University, Dmytrenko Vitalii
Published: December 2023

The purpose of the research is to analyze the demographic aspects of the life of the parish priests of the village of Kulazhyntsi in the 18th century. The research methodology is based on an anthropological approach with using historical-genetic, historical-comparative and quantitative methods. The scientifi c novelty is that for the fi rst time the parish priests of the village of Kulazhyntsi in the 18th century became the object of an analysis aimed to fi nd out the main demographic characteristics of their life activities. Conclusions. During the 18th century Kyrylo Anisimov and Mykhayilo Verbovskyi were priests of St. Michael’s Church in the village of Kulazhyntsi. Th ere were from 354 to 828 believers in the priesthood. So, on average, there were 635 people per pastor. From the end of the 1760s, the regular staff list of the parish met the of- fi cial requirements for the clergy of the parish church and included a priest, a deacon, a psalmist and a sexton. Priests were ordained to the parish aft er the age of 26, apparently closer to the age of thirty, which corresponds to the established canonical norms. Th e priests lived for more than 66 years, therefore, they reached the milestone of old age, which is marked in early modern socie- ty as sixty years of age. Mykhaylo Verbovsky happened to be the son-in-law of Kyrylo Anisimov, which was a typical phenomenon in the Pyriatyn protopopy of that time. Reverend Kyrylo’s fam- ily structure was nuclear, and rev. Mykhaylo’s one was extended, because unmarried children of the deceased Kyrylo lived in it. Th e average size of a priest’s family in Kulazhyntsi was 8.8 peop- le. This indicator is higher than the average population of priestly families of the protopopy. The families were dominated by women. Th ere were twice as many children as adults. Father Mykhaylo fi rst became a father at the age of 26, and the last child was born when he was 41. In total, there were 8 children in his family, who were born once every two years.
The battle of Sydoriv, july 25, 1920: the forgotten victory of the UPR Army
Authors:   Kamyanets-Podilskіy National Ivan Ogііеnko  University, Zavalniuk Olexandr , Oliinyk Serhiy ,   Kamyanets-Podilskіy National Ivan Ogііеnko  University
Published: December 2023

The history of the Armed Forces of our country is fi lled with many heroic pages that testify to the indomitability of the Ukrainian spirit, the high military skill of commanders and ordinary soldiers, their courage, bravery, and willingness to sacrifi ce themselves for the sake of national interests. Th e battle with the Red Army, which took place near Sydoriv in Eastern Halychyna on July 25, 1920, has not yet become the subject of special research by domestic his- torians. The purpose of the article is to fi nd out based on mobilized sources and historiography, the prerequisites, course, and results of the battle of the Army of the Ukrainian People’s Republic with the Red Army on July 25, 1920, under Sydoriv, its signifi cance for the continuation of the Polish-Ukrainian-Soviet confrontation. Th e research methodology is based on the principles of historicism and objectivity. Th e use of such methods as analysis, synthesis, as well as problem- chronological, systematic, descriptive, statistical, and comparative methods, made it possible to fulfi ll the set goal. Th e scientifi c novelty of the research lies in the holistic, objective coverage of the prerequisites, course, and results of the mentioned battle, and its infl uence on the further development of the Polish-Ukrainian-Soviet war in the summer of 1920 in Pryzbruchchia. Conclusions. The military and political situation in June–July 1920 was not favorable for the Army of the Ukrainian People’s Republic; it was preceded by a long-forced retreat together with its Polish ally, under the blows of the overwhelming forces of the Red Army, to new defen- sive lines on the Zbruch River. Constant clashes exhausted the Ukrainian army, which followed the tactics of active defense. From time to time there were threats of a breakthrough of the front by the enemy, which had to be eliminated. The successful implementation of the idea was the victorious battle of the 3rd Iron Division and the Separate Cavalry Division with the advancing “Red” units on July 25, 1920, near Sydoriv, in which the enemy was completely defeated. Th e Ukrainians demonstrated the high military skill of their commanders, courage, heroism, and mature military training of ordinary soldiers. The counter-battle brilliantly conducted by the cavalrymen with the prevailing enemy cavalry, which in military aff airs is considered one of the most diffi cult types of combat, and the evasive maneuver that led to the encirclement and defeat of the enemy should be considered one of the brightest pages in the history of the Ukrainian army and the national military art of the modern era.
Combat reserves of the State border service of Ukraine in combat operations in Donbas (spring – summer 2014
Authors:   State Border Guard Service of Ukraine named after Bogdan Khmelnytskyi, Kabachinsky Mykola , Ananin Oleh ,   Main Development Program Monitoring Center (Offi ce of Reforms) of the State Border Service of Ukraine
Published: December 2023

The study aim to analysis of the historical experience of the participation of com- bat reserves of the State Border Guard Service of Ukraine in the hostilities in the Ukrainian Donbas in the spring and summer of 2014. Research methodology is based on the principles of historicism, objectivity, comprehensive analysis, and the modern conceptual and categori- cal apparatus used by military history in describing the process of armed struggle. Th e histori- cal and systematic method, as well as the methods of analysis and synthesis, are used. The scientifi c novelty lies in an attempt to systematically study the history of the participation of the combat reserves of the Border Guard Service in the hostilities conducted by the Ukrainian Defense Forces in the Luhansk and Donetsk regions in the spring and summer of 2014 during the counteraction to Russian aggression. Conclusions. The combat reserves of the State Border Guard Service were formed as freelance units with the main goal of strengthening the border guard units that guarded the Ukrainian-Russian state border in the eastern regions of Ukraine. Their service and combat activities in the spring and summer of 2014 can be divided into two stages, each of which diff ered in the socio-political situation and the intensity of hostilities. As the hostilities clearly demonstrated, due to the lack of regular missile and artillery weapons and the necessary amount of armored vehicles, the border guards’ combat reserves were able to fi ght only sabotage and reconnaissance groups and some illegal armed groups of local pro-Russian collabo- rators. As for confronting the regular units of the Russian armed forces by conducting full-scale combat operations against them, the border guards were predictably unprepared.
The historical policy of the Russian orthodox church on Ukraine as a component of the neoimperial Geopolitics of Russia
Authors:   National Institute of Strategic Studies, Lozovyі Vitalii
Published: December 2023

The purpose of the study is to identify and analyze the main historical narratives of the Russian Orthodox Church (ROC), to fi nd out the interpretations of Ukrainian history as the ideological basis of Russian geopolitics of the integration of the post-Soviet space and the incorporation of Ukraine, to show the use of the historical policy of the ROC as an argument for the legitimization of the war against Ukraine. Th e methodological foundation of the research is the principles of objectivity, historicism, systematicity, and comprehensiveness. The methods of analysis and synthesis as well as problem-chronological, historical-genetic, and historical- comparative methods have been used. Th e scientifi c novelty lies in the fact that, for the fi rst time, the article examines the problem of the Russian Orthodox Church’s use of historical policy to form an ideological basis for the implementation of the neo-imperial geopolitical doctrine of the absorption of Ukraine by Russia. Conclusions. Th e ideologues of the original “Russian civilization” and “Russian world” are used as the theoretical foundation of Russian foreign policy towards Ukraine and as a rationale for the current geopolitical confrontation with the Western world. Th e historical policy of the Russian Orthodox Church is based on the promotion of the interconnected concepts of “Holy Rus”, “historical Rus”, and “historical Russia”, which imply the large civilizational space of the “Russian world”, of which Ukraine is an integral part. Th e importance of Ukraine in the historiosophical constructions of the Russian Orthodox Church is determined by the fact that the origins of Russian Orthodox spirituality and statehood are connected with the territory of modern Ukraine. Therefore, together with the Kremlin, the Russian Orthodox Church implements the neo-imperial geopolitical project of “the Russkiy Mir (“the Russian World”), aimed at restoring the Russian superpower and integrating the post-So- viet space”. Its ideological foundation is the historical-religious concept of “Holy Russia”, which implies the absorption of Ukraine by Russia. The claims of the Russian Orthodox Church about the entry of Ukraine into “historical Rus” and, accordingly, into “historical Russia”, the statements about one people, one faith, and a common state, insisting on the canonicality of the Russian Orthodox Church over the terri- tory of Ukraine – all these are the basis of the justifi cation that denies the separate identity of Ukrainians, the legitimacy of the autocephaly of the Orthodox Church of Ukraine, the right to the existence of the Ukrainian state and gives reasons to assert that the common past determines the common future. These arguments have become the rationale for Russian geopolitical expan- sion and aggression against Ukraine.
Constructive solution of window frames and the use of glass in middle and late Byzantine temple architecture
Authors:   Taras Shevchenko National University of Kyiv, Kolomiiets Oleksandra
Published: December 2023

The purpose of the article is to investigate the constructive solutions of windows, window frames, production and use of glass (including stained glass) in temple buildings of the Middle and Late Byzantine periods on the basis of preserved, described in sources and found ar- tifacts. Th e research methodology is based on the principles of historicism, comparative analysis, induction and deduction. An interdisciplinary methodology is used – approaches of global history, which are based on data, fi rst of all, obtained from archaeological, geographical and chemical research, as well as a comparative method and a method of analysis. The scientifi c novelty is due to the need for a thorough study of all aspects of the temple architecture of Byzantium, since today there is a great need for the restoration/reconstruction of the monuments of Roman civilization, both from the point of view of the development of tourism in the region, and for the preservation of material cultural heritage for posterity. Conclusions. The development of window glass production technology actively infl uenced its shape, size and quality. Accordingly, the direction and degree of natural lighting in the Byzantine temple depended on this. Th e shape of the windows (as well as their size) diff ered by location in diff erent parts of a particular temple (gallery walls, dome drums, apses, stair towers, etc.). The traditional types of Byzantine windows, which were found in both temple and palace architecture, are arched, round and semi-round (as well as single, double and triple). Based on the preserved window openings, it can be understood that the glass was made of a small size. For the production of window glass, workshops-ergasterias were used, where glassware was made. Th e main raw material for glass making is silica, i.e. sand, and additional impurities are potash or sodium soda. They could also add lime, ground shells and oxides of various metals to colour the glass. In the Middle and Late Byzantine period, window glass is a very rare fi nd. Th e most common form of window glass was rounded oculi, or “crown glass.” Th e typical design of a Byzantine window consisted of a lattice frame “transene” (plaster, marble, wood or lead) and inserted into it 2 or 3 rows of paired small, round, fl at glasses of the oculi type. Both ordinary col- oured and stained glass were used in Byzantine architecture.
Representation of the tragedy of Babyn Yar in nationwide Historiography and published sources (1991-2022)
Authors:   M. S. Hrushevsky Institute of Ukrainian Archeography and Source Studies NAS of Ukraine, Mykhailiuk Maryna
Published: December 2023

The purpose of the research is to highlight and analyze the source base, scientifi c works of domestic historians published during the period of independence of Ukraine (1991- 2022). The research methodology is based on the principles of scientifi city, objectivity, and his- toricism. Problem-chronological, search, analytical methods, as well as the method of generali- zation and systematization of the material are applied. The scientifi c novelty of the article lies in the analysis of the work of domestic researchers studying the history of Babi Yar. Conclusions. A brief historiographic review, which does not pretend to be an absolutely exhaustive selection of works, demonstrates the main directions of scientifi c research: local history (study of the history of the area and places of executions), archival (publication of German and Soviet archival docu- ments), oral history (analysis and publication of interviews), ego-documentary (publication of memoirs), statistical (counting victims), commemorative (commemoration of the Holocaust). All directions continue to develop, therefore it is too early to put an end to the research of the history of Babi Yar. The biggest «stumbling block» remains the statistical and commemorative areas, as there are still discussions among Ukrainian Holocaust and World War II researchers about the number of Jewish victims of Babi Yar, the politics of commemoration. The former «Babi Yar» tract remains a «battlefi eld» between supporters of the state and private concept of Holocaust memorialization. Among the prospects for further research, which have not yet found serious scientifi c implementation in the form of separately published books, it is possible to single out the analysis of the memories and testimonies of former representatives of the occupation structures about the shootings and burning of corpses in Babi Yar; materials of post-war trials in the case of Nazi criminals, especially those of them who were directly involved in destruction actions in occupied Kyiv.
Increased Productivity of Packing Machines Through Implementation of Total Productive Maintenance Using the Overall Equipment Effectiveness Method Case Study of PT. GFPJ
Authors: Saputra Ferry Adhi , Riza Rady Mohammad
Published: December 2023

In the world's manufacturing industry, increasing productivity is very important in fulfilling domestic and international markets as well as maintaining customer confidence. The company is trying to increase productivity in production. The fact that the packing machine is in an inefficient condition and the management is trying to implement it. in Total Productive Maintenance (TPM) to maximize the effectiveness of machine facilities in the industry. Then corrective actions are tested using the Overall Equipment Effectiveness (OEE) method, which is the calculation method used in this OEE value is determined by availability, performance and quality. The low OEE value of the packing machine at PT. GFPJ results from the availability value of = 60% for the results of the performance value of = 100% and the value of quality = 93%, it can be concluded that the OEE value obtained on the machine packing is 59.86%, while the international OEE standard is 87%, so it needs improvement. The factor that becomes a priority for improvement is the performance or performance of the machine in producing concrete, because the performance value is the lowest value of the three factors that affect the OEE value.
Pengaruh Biomassa dan Waktu Fermentasi Mikroalga Alami dengan Penambahan Kotoran Sapi untuk Produksi Biogas
Authors: Irfandanny Dheo , Hendrasarie Novirina
Published: December 2023

Biogas is one of the alternative energy sources that has become increasingly popular. Several studies have found that microalgae are effective in producing biogas. This research aims to explore the potential of natural microalgae as an alternative energy source for biogas production. The study was conducted by utilizing microalgae naturally present in bozzem water and drainage. The reactor used in this study is an Anaerobic stirred-tank reactor. The addition of cow manure is used as a supplementary substrate to enhance nutrient levels during the fermentation process. Various fermentation times and biomass concentrations were applied to determine the optimal reactor conditions for biogas production. Natural microalgae from the drainage and bozzem water have an impact on biogas production. The produced biogas was analyzed to determine CH4 (methane) and CO2 (carbon dioxide) concentrations. The best results in this study were obtained from drainage microalgae, which produced biogas with CH4 concentration of 50.17% and CO2 concentration of 40.14% at a biomass concentration of 40%. Meanwhile, bozzem microalgae produced biogas with CH4 concentration of 32.28% and CO2 concentration of 25.02% at a biomass concentration of 30%.
Usulan Perbaikan Tata Letak Fasilitas Pada Area Produksi Menggunakan Metode From to Chart (Studi Kasus: PT. Ibrahim Bin Manrapi)
Authors: Rifdhani Muhammad Ivan Yudha , Hidayat Hidayat , Rizqi Akhmad Wasiur
Published: December 2023

An industry, both in the help and assembling areas, unquestionably has a few offices to help its creation cycle. Office design connects with the area, format, floor plan, equipment, and exercises related with the work environment. Different sorts of data from research led by finishing direct discernments and assessments made by areas on organizations taking part in the assembling of woven sarong materials at PT. Ibrahim Bin Manrapi which is situated on Jl. Malik Ibrahim Gresik, 24-26. in view of the discoveries of the examination of PT. In terms of format prior to design planning, PT. Ibrahim Bin Manrapi 's container is that there are still many areas that are not utilized to their full potential, and there are still many distances between offices that must be expanded as much as possible. From the technique for making the stream before the platform, there is a material conveyance distance of 102 m. Given the effect of information the board from the issues seen by PT. Ibrahim Bin Manrapi saw a lack in the plan so the gathering cycle went poorly and the conveyed item couldn't be anticipated to be great. This course of action should be possible by arranging the arrangement of the assembling office utilizing the From To Chart (FTC) procedure to restrict forward and backward during the assembling cooperation (Backtracking).
Noise Level of Factory Area Department IB PT Petrokimia Gresik Using Noise Mapping Method and Niosh
Authors: Ramadhani Surya Rizki , Widyaningrum Dzakiyah
Published: December 2023

Noise is a problem in the industrial sector, this resulted in many cases of hearing loss due to noise in industrial areas. PT Petrokimia Gresik has implemented noise control and started implementing several elements/components of the Hearing Conservation Program (HCP)/Hearing Conservation Program (PKP) to control noise. However, the PKP special program has not been implemented systematically, only a few elements/components have been implemented. The research objective was to determine the mapping and noise level in the factory area in the IB department of PT Petrokimia Gresik using the Noise Mapping and Niosh methods. Based on the results of measurements in the field, there are 11 highest noise points which are above the noise level quality standard of Regulation Number Per.13/Men/X/2011 before control is carried out. The highest noise point is 106 dB at point 10. Based on noise level measurements, the length of exposure recommended by NIOSH varies, and depends on the measurement results obtained the longest exposure time allowed at point 10 is 34.2 minutes. This measurement point is closest to the noise source, so workers are required to use PPE in the form of ear plugs, ear muffs and safety hats. The PPE can reduce the amount of acoustic energy on the hearing mechanism of workers at PT Petrokimia Gresik.
Analisis Kualitas FAME Menggunakan Metode Seven Tools dan FMEA Pada Departemen Laboratorium (Studi Kasus: PT. XYZ)
Authors: Muzakki Sayyid Atho' , Salim Dahda Said
Published: December 2023

PT. XYZ is an industry that processes palm oil into oil to manufacture Fatty Acid Methyl Ester. Fatty Acid Methyl Ester (FAME) or commonly known as Biodiesel. This study aims to identify and analyze the factors that cause FAME products not to comply with standard specifications which can then be given proposals for improvement and resolution related to product quality defects. The incidence of defects that exceed the quality specification limit for FAME in moisture content parameters is 30.83%, soap content 3.33%, total glycerol 5% for 1 month. The solution method used uses seven tools and FMEA. With the use of the seven tools method, it is known that defective quality parameters are still within reasonable thresholds, and some of the factors that influence them are people, machines, methods, and raw materials. From the FMEA method, it is known that the material that must be repaired first with a value of RPN 320.
Kinerja Simpang Tak Bersinyal Pada Persimpangan Jl. Damang Batu – Jl. Pilau Kota Palangka Raya
Authors: Lukas Rexy , Elvina Ina , Riani Desi
Published: December 2023

An intersection refers to a designated area on the road network where traffic on vehicles sourced from several directions meets. The intersection of Damang Batu Road - Pilau Road is located in the urban area of Palangka Raya. This intersection is a very important traffic meeting point as it must facilitate rapid movement throughout the area. Analyzing the performance of the intersection is an important factor in identifying the most effective strategies to improve its efficiency. This study was conducted with the aim of analysing the intersection performance and obtaining alternatives to optimise the intersection performance. This research uses observational methodology, where data collection is carried out in a field situation. After all the data both primary and secondary are collected, the data will be analysed using the MKJI 1997. According to the results, under current conditions it has shown good results. The capacity value is 2434 smp/hour. And the degree of saturation is 0.51. Meanwhile, the intersection delay is 10.779 sec/smp. And the upper limit for queuing opportunities is 25%, the lower limit is 11%. So that the service level at that intersection falls into category B, indicating a good level of service.
Usulan Peningkatan Kualitas Produk Urea dengan Metode Six Sigma Pada PT. XYZ
Authors: Ferdiansyah Bayu , Rizqi Akhmad Wasiur , Negoro Yanuar Pandu
Published: December 2023

PT. XYZ is a manufacturing company that produces urea fertilizer. The quality of urea fertilizer is influenced by three main parameters, namely H2O content, Biuret, and color. Based on known secondary data in the form of product defect history, in September 2023 product defects will be 12.9%. This research was conducted using the Six Sigma method with the aim of improving overall quality so as to prevent losses in company productivity. The research results show that in the defect category the H2O parameter has a DPMO value of 225834.7 with a sigma value of 2.25, for the biuret parameter it has a sigma value of 2.83 with a DPMO of 91216.7, and for the color parameter it is known that the DPMO value is 562700 or a sigma value of 1.34. then a root cause analysis is carried out using a fishbone diagram to obtain suggestions for improvement. Suggestions for improving Urea Fertilizer products for CTQ H2O include providing training/certification, coordinating with the Utilities section regarding steam, determining the right sampling point, and optimizing vacuum performance. For CTQ Biuret, namely providing training/certification, changing the tonnage in the urea process, paying attention to residence time and controlling the valve to work properly. For CTQ Color, namely providing training/certification, routinely cleaning dye spray filters, determining the right sampling point and routine pump maintenance.
Actor Relations in the Change of Shape and Space in the Rumah Gadang of Balai Kaliki Traditional Village
Authors: Putri Azani Zalika , Ekomadyo Agus S. , Triharini Meirina
Published: December 2023

Rumah Gadang is a traditional building that represents the cultural identity of Minangkabau Tribe in West Sumatera. This traditional building is a cultural heritage that must be preserved. However, preservation led to many changes in the form and space of traditional buildings. Rumah Gadang which is located in Kampung Adat Balai Kaliki, Payakumbuh City West Sumatera has a level of change in minor and major. That matter could happen because of differences in the network of actor relations in each building. The factor of actor relations has an impact to change the preservation of traditional buildings, thus providing a new perspective on the preservation of traditional buildings. Therefore, this research aims to observe the changes that occur in the Rumah Gadang located in Kampung Adat Balai Kaliki through actor network’s perspective. Completion of this research using a qualitative methodology with Actor Network Theory (ANT) method by examining changes that occur in Rumah Gadang holistically, which is through a study the relations between the actors involved in that building to discorver the factors that cause the changes. This research find that the relation of actors involved in each Rumah Gadang determines the quantity of building changes. The result is charted using sosiotechnogram to know the strong actors in actor relations from each Rumah Gadang. Therefore, this research could be the basis for appropriate practices of preserving Rumah Gadang traditional building.
Review of Revolutionary Ireland, 1916-2016: Historical Facts and Social Transformations Re-assessed, by Constanza del Río and José Carregal (eds.)
Authors: Armie Madalina
Published: December 2023

Review of Revolutionary Ireland, 1916-2016: Historical Facts and Social Transformations Re-assessed, by Constanza del Río and José Carregal (eds.) (Brighton, UK: Edward Everett Root Publishers Co. Ltd., 2020), 234 pp., ISBN: 9781911204800, £75.00 (hardback)
Review of An Introduction to the Geopolitics of Conflict, Nationalism, and Reconciliation in Ireland, by Kara E. Dempsey
Authors: Jorge Charlie
Published: December 2023

Review of An Introduction to the Geopolitics of Conflict, Nationalism, and Reconciliation in Ireland, by Kara E. Dempsey (London and New York: Routledge, 2022), 204 pp., ISBN: 978-0-367-69266-7, £38.99 (paperback)
'A Third Country': Irish Border Communities
Authors: Daly Mary E.
Published: December 2023

Inserting a border where one did not previously exist transforms the mental and physical map of individuals and communities. Those who live along the Irish Border regard themselves as distinct from the rest of Northern Ireland or Ireland – ‘a third country’, that is neglected, and distinct from both Belfast and Dublin. This paper explores the neglect and belated ‘discovery’ of the problems facing border areas: the local impact of partition on population and the economy, the image of the border as a zone of violence and lawlessness, and the importance of the parish and community identities, together with the question of sectarianism.
Official interest in the border (apart from security matters), only emerged in 1983 when the Economic and Social Committee of the EEC issued a report on Irish Border Areas highlighting the serious socio-economic problems. Since the 1990s border communities, both north and south, have benefited significantly from an array of programmes funded by the EU, the British and Irish governments and international donors. Most of the practical difficulties of life along the border, such as customs and security posts, were removed during the 1990s, with the introduction of the EU Single Market and the end of paramilitary violence. This has enabled some restoration of traditional cross-border networks. Britain’s decision to leave the EU threatened to restore these administrative barriers, but concerted efforts by the Irish government and the strong support from the EU ensured that this was avoided.
Although the Irish border has practically disappeared on the ground, legacies remain. Over the past century it has reconfigured community and personal identities, and it remains a potent political symbol for both nationalists and unionists.
The IRA and the Partition of Ireland
Authors: English Richard
Published: December 2023

The Irish Republican Army (IRA) has been the most aggressively hostile opponent of the border that was established in Ireland during the 1920s. This article focuses on the fact that the IRA’s own violence emerged from a substantial, evolving and complex politics. It suggests that close consideration of that politics, of associated IRA violence and of the long-term implications of both, represents a necessary part of understanding the Irish border and its associated and important histories. Three case studies are considered: Ernie O’Malley (1897–1957); Peadar O’Donnell (1893–1986); the Provisional IRA (1969–2005). The article argues that the paradoxical outcomes of these three significant IRA case studies point towards the need for greater honesty about the actual effects of non-state political violence; it also argues for an empathetic approach to understanding those with whom one instinctively disagrees, if the political history of the Irish border and its legacies is to be properly understood.