Present Time Research Articles

SOCIALIZATION MODELS OF WASTE MANAGEMENT IN RURAL COMMUNITIES (A CASE STUDY OF THE COMMUNITY OF CILELES JATINANGOR)

Waste is basically materials intentionally or unintentionally discarded as the product of human activities or natural processes. The handling and management of waste are increasingly more complex and complicated as its volume, types, and composition are more and more complex. Optimizing waste management needs an active role of the community to reduce, sort, and recycle the waste. However, the participation of the community in waste management often presents a complex challenge because it involves cultural, social, and economic factors. The community empowerment was conducted in Cileles Village, Jatinangor. Its proximate location to the center of education and economy gives Cileles Village the potential for the development of sustainable waste management. However, up to the present time, waste management in the village still faces some obstacles, such as the lack of infrastructure and the lack of the community’s motivation for sorting their waste. The result of this community service activity indicates that the community has a positive perception of waste and an awareness of waste management. However, the perception has not materialized in the community's daily behavior in managing their waste. For this reason, Socialization models of waste management have been carried out with participation, behavior change, and collaboration models.

Analysis of Extracranial Cerebrovascular Injuries: Clinical Predictors of Management and Outcomes

Optimal management of traumatic extracranial cerebrovascular injuries (ECVIs) remains undefined. We sought to evaluate the factors that influence management and neurologic outcomes (stroke and brain death) following traumatic ECVI. A retrospective review of a single level 1 trauma center's prospectively maintained data registry of patients older than 18years of age with a diagnosis of ECVI was performed from 2013 to 2019. Injuries limited to the external carotid artery were excluded. Patient demographics, type of injury, timing of presentation, Biffl Classification of Cerebrovascular Injury Grade, Injury Severity Score (ISS), and Abbreviated Injury Scale were documented. Ultimate treatments (medical management and procedural interventions) and brain-related outcomes (stroke and brain death) were recorded. ECVIs were identified in 96 patients. The primary mechanism of injury was blunt trauma (89.5% vs. 10.5%, blunt versus penetrating), with 70 cases (66%) of vertebral artery injury and 37 cases of carotid artery injury. Treatments included vascular intervention (6.5%) and medical management (93.5%). Overall outcomes included ipsilateral ischemic stroke (29%) and brain death (6.5%). In the carotid group, vascular intervention was associated with higher Biffl grades (mean Biffl 3.17 vs. 2.23; P=0.087) and decreased incidence of brain death (0% vs. 19%, P=0.006), with no difference seen in ISS scores. Brain death was associated with higher ISS scores (40.29 vs. 24.17, P=0.01), lower glascow coma score on arrival (3.57 vs. 10.63, P<0.001), and increased rates of ischemic stroke (71% vs. 30%, P=0.025). In the vertebral group, neither Biffl grade nor ISS were associated with treatment or outcomes. Regarding the timing of stroke in ECVI, there was no significant difference in the time from presentation to cerebral infarction between the carotid and vertebral artery groups (24.7hr vs. 21.20hr, P=0.739). After this window, 98% of the ECVI cases demonstrated no further aneurysmal degeneration or new neurological deficits beyond the early time period (mean follow-up 9.7months). Blunt cerebrovascular injuries should be viewed distinctly in the carotid and vertebral territories. In cases of injury to the carotid artery, Biffl grade and ISS score are associated with surgical intervention and neurologic events, respectively; vertebral artery injuries did not share this association. Neurologic deficits were detected in a similar time frame between the carotid artery and the vertebral artery injury groups and both groups had rare late neurologic events.

Violência doméstica e sofrimento psíquico: narrativas de mulheres catadoras de resíduos sólidos

The objective was to analyze the interface between domestic violence and psychological distress from the perspective of women waste pickers. This is a qualitative study with a social constructionist approach conducted with 20 women waste pickers, residents of the Federal District, Brazil. Semi-structured interviews, as an instrument for data collection, and Association of Ideas maps were used to analyze the speech contents. The contents extracted from the collected narratives are divided into three thematic categories: violence producing psychological suffering, resources to deal with violence, and work and psychological suffering among women who work with solid waste. At work, personal memories of the suffering lived and experienced in the present time in the workplace were noticed. In the view of the women, aid resources are scarce, even with the knowledge of the legal resource. However, there were signs of self-knowledge of the right to life, respect and the worth of being a woman. Strategies of resistance with psychosocial, legal, and protection services of women are needed in order to proactively support the reduction of their vulnerabilities and facilitate the expansion of their capacities to address the causes of violence, and to produce networks of care, support, and prevention that include their children.

Alcohol-related emergency department presentations and hospital admissions around the time of minimum unit pricing in Ireland

BackgroundMinimum unit pricing (MUP) was recently introduced in Ireland to reduce alcohol-related harms. The size of the impact of alcohol on hospital emergency departments (EDs) in Ireland is poorly understood due to inconsistent alcohol screening and documentation. AimsWe sought to systematically characterise the volume, timing, and nature of alcohol-related presentations and admissions to a busy urban ED in Dublin, Ireland. MethodPatients presenting to the ED were assessed by a dedicated clinician during selected time periods before (Nov–Dec 2021) and after (Feb–Apr 2022) the introduction of MUP. A total of 725 interviews were conducted over 168 h in the ED. FindingsAlcohol consumption was a factor in 19.4% of ED presentations and in 17.3% of hospital admissions across the entire study period. A reduction in overall alcohol-related ED presentations was noted in the period following MUP, although it is not possible to conclude a direct effect. ConclusionAlcohol-related harm places a significant strain on EDs and hospitals, and the impact of MUP on hospital burden in Ireland merits further evaluation. Effective measures at local and population levels are urgently required to address this burden.

시간관이 외상 후 성장에 미치는 영향에서 스트레스 대처전략의 매개효과

Objectives In the present study, we examined the mediating effects of the three stress coping strategies(seeking social support, problem-solving coping, and avoidance coping) in the relationship between the five factors of the time perspectives(past-positive time perspective(PP), past negative time-perspective(PN), present hedonistic time perspective(PH), present fatalistic time perspective(PF), future time perspective(F) and PTG in (under) grad-uate students with trauma.&#x0D; Methods The self-report questionnaires including Traumatic Events Questionnaire, Zimbardo Time perspective Inventory(ZTPI), Coping Strategy Indicator(CSI), Posttraumatic Growth Inventory(PTGI) were administered to 303 undergraduate and graduate students(215 women and 88 men).&#x0D; Results First, the coping strategy of seeking social support mediated the relationship between past-positive, past-negative, present hedonistic time perspective and PTG respectively. Second, problem-solving coping strat-egy showed significant mediating effects between all time perspectives except for the present hedonistic time perspective and PTG. Finally, there were no significant mediating effects of avoidance coping strategy in the rela-tionship between time perspectives and PTG.&#x0D; Conclusions The results of the present study suggest that the role of seeking social support and problem-solving coping strategies is important in the effect of time perspective on post-traumatic growth, and it should be the fo-cus of clinical intervention.

Legal aspects of artificial intelligence in the employment process

The introduction of artificial intelligence in all domains of life is the most transformative process in recent history. It is also a highly dynamic process, and due to the pace of technological development, a very limited legal framework is available to address issues of human rights, ethics, transparency, privacy, safety and accountability. During the last few years, artificial intelligence started to reshape employment processes. Positive aspects of the introduction of AI in the employment process are efficiency and quality in job matching, digitalisation and acceleration of the process, ability to process large data and match job seekers to available vacancy announcements, the alleviation of administrative burdens of employees of employment agencies and giving them strategic and innovative roles. All these are indispensable in present times when demographic challenges in European countries are leading to increased labour migrations and require changes in the recruitment process. The paper explores the current challenges of AI, i.e. how to achieve human-centred values and fairness of AI use during the employment process, preventing algorithmic bias and discriminatory application of AI tools. In order to harness the maximum benefits of AI, we need to develop a regulatory framework that would be enforceable, inclusive and adaptive (OECD), particularly knowing that most AI solutions are privately owned and developed for commercial purposes.

SPECTRAL DYNAMIC STIFFNESS METHOD FOR THE FLUTTER PROBLEM OF COMBINED PLATES

At present time, the spectral dynamic stiffness method is being actively developed as an alternative to the finite element method for vibration and stability problems of composite structures from beams, rods, plates and shells. This approach, based on exact solutions of governing differential equations, makes it possible to more effectively study the problem in the medium and high frequency ranges, and gives analytical expressions for natural modes. It is proposed to use the advantages of this method to study the problems of dynamic stability and flutter of an orthotropic composite plate in a supersonic gas flow. Using the linear approximation of piston theory, solution of the problem is investigated according to the Galerkin method on the basis of the eigenforms of a composite plate in vacuum. According to this approach the boundary value problem is reduced to a homogeneous infinite linear algebraic system of equations with coefficients are depending from physical-mechanical and geometrical parameters of the problem. The frequency parameter is included in the system linearly, that allows us to reduce eigenproblem for infinite system to the problem of determining the eigenvalues and vectors of a matrix. The convergence of the Galerkin method depending on the number of basis functions is studied numerically. It is shown that the first 16 eigenforms provide the good convergence of the method. Examples of numerical implementation are given, obtained solution allow us to study the dependence of the critical velocity from the properties of the material and geometry of the combined plate.

ضمانات حماية حقوق الأقليات في القانون الدولي العام

Individuals belonging to minorities, regardless of their religious, ethnic, racial or national affiliations, are among the groups most vulnerable to discrimination and persecution. in spite of this difference is not considered a source of weakness of national unity among the individuals of the state. However, we are witnessing at the present time, despite the development in rights and freedoms, many forms of assault and persecution of the rights of this community. This called for the need to adopt international rules that protect the rights of minorities in particular, in addition to those that guarantee human rights and public freedoms. Perhaps the legislation of legal rules, whether international or national, would be a futile act unless it is accompanied by real guarantees that guarantee the application of these rules. Through this study, we will show the concept of minorities, the nature of international rules pertaining to their rights, and the extent of the effectiveness of international mechanisms in achieving the purpose for which these rules were established.

Angiosarcoma of the scalp successfully treated with Nivolumab—A case report

AbstractAngiosarcomas are rare, aggressive tumours with a propensity for the head and neck region. Surgery is the mainstay of treatment of localised angiosarcoma, but in unresectable or metastatic disease, the treatment is much more challenging. Traditionally, chemotherapy (Paclitaxel in particular) has been the treatment of choice. Evidence from case reports and small trials shows that PD1 inhibitors have activity against angiosarcomas, despite the lack of a large clinical trial data demonstrating definitive efficacy. The present case exemplifies the susceptibility of this malignancy to anti‐PD1 agents. We report a 77‐year‐old male patient with an advanced, multifocal angiosarcoma of the frontotemporal and malar region. The patient was pretreated using the association of Propranolol and Endoxan and then Paclitaxel. Because of the lack of efficacy, the patient was started on Nivolumab as the third line of therapy. After five cycles of immunotherapy, an excellent response was achieved, with complete remission of the cutaneous lesions as well as a partial remission of the hepatic nodules. The duration of response is currently 14 months, the patient being still alive at the present time. This case suggests that immune checkpoint inhibitors may represent a viable therapeutic option that needs further exploration for the treatment of locally advanced, unresectable or metastatic cases of cutaneous angiosarcoma.

Symbolic Connotations in the Works of the Artist Eugene Delacroix

The use of symbols is considered an important part of visual expression since ancient civilizations till the present time, and detecting the significance of these symbols is a communication means between the artwork and the recipient. The current study aims to detect the clarification of the concept of symbolic connotations, and to detect their importance in the works of the artist Eugene Delacroix, through description and technical analysis, and trying to monitor the technical aspects of these connotations and using them in forming the artwork; This shows the importance of the study in trying to benefit the scholars in the field of visual arts and the analysis of artworks in particular. The study used the descriptive analytical approach for detecting and analyzing these connotations to reach results related to the research objectives. The research sample consisted of paintings of the artist's works during the period (1822-1837 AD), where the works were sorted according to the specified time period, taking into account the stages and transformations in the artistic style. The artworks were chosen as a purposive sample; The number of artworks reached (4), they represent two important stages for the artist: the European stage, and the Arab Maghreb stage. The study reached several results, the most prominent of which are: the association of formative formulations in Delacroix's works according to the two artistic stages that he lived in Europe and Morocco. Also, the artist used in some of his works various symbolic connotations; the most important of which are: the conventional, explanatory and aesthetic connotations, which are among the direct symbolic connotations; The artist also used indirect symbolic connotations such as suggestive and probable connotations, and all these connotations have implicit meanings. Following the results of the study, the current study reached a set of recommendations, the most important of which are supporting the studies and researches associated to analyzing symbolic connotations in the local artworks

Ideas and Thoughts on Islamic Education from Fazlur Rahman's Perspective

Education is an integral part of human life. Even in the present time, education has become an immensely vital necessity. Fazlur Rahman, a modern Muslim scholar, endeavored to connect Islamic education with the modern context. Despite being renowned as an expert on the Quran, he also paid attention to other aspects such as Islamic education. This commitment is reflected in various books he authored, including works that delve into educational topics. The research method employed in this piece is literature review. This paper discusses Islamic education. Based on Fazlur Rahman's perspective on education, two models originate from his ideas. First, a critical and creative Islamic education. Second, an Islamic education that upholds high moral standards.

Type II odontoid fractures in the elderly presenting to the emergency department: an assessment of factors affecting in-hospital mortality and discharge to skilled nursing facilities

BACKGROUND CONTEXTType II odontoid fractures (OF) are among the most common cervical spine injuries in the geriatric population. However, there is a paucity of literature regarding their epidemiology. Additionally, the optimal management of these injuries remains controversial, and no study has evaluated the short-term outcomes of geriatric patients presenting to emergency departments (ED). PURPOSEThis study aims to document the epidemiology of geriatric patients presenting to EDs with type II OFs and determine whether surgical management was associated with early adverse outcomes such as in-hospital mortality and discharge to skilled nursing facilities (SNF). STUDY DESIGNThis is a retrospective cohort study. PATIENT SAMPLEData was used from the 2016–2020 Nationwide Emergency Department Sample. Patient encounters corresponding to type II OFs were identified. Patients younger than 65 at the time of presentation to the ED and those with concomitant spinal pathology were excluded. OUTCOME MEASURESThe association between the surgical management of geriatric type II OFs and outcomes such as in-hospital mortality and discharge to SNFs. METHODSPatient, fracture, and surgical management characteristics were recorded. A propensity score matched cohort was constructed to reduce differences in age, comorbidities, and injury severity between patients undergoing operative and nonoperative management. Additionally, to develop a positive control for the analysis of geriatric patients with type II OFs and no other concomitant spinal pathology, a cohort of patients that had been excluded due to the presence of a concomitant spinal cord injury (SCI) was also constructed. Multivariate regressions were then performed on both the matched and unmatched cohorts to ascertain the associations between surgical treatment and in-hospital mortality, inpatient length of stay, encounter charges, and discharge to SNFs. RESULTSA total of 11,325 encounters were included. The mean total charge per encounter was $60,221. 634 (5.6%) patients passed away during their encounters. In total, 1,005 (8.9%) patients were managed surgically. Surgical management of type II OFs was associated with a 316% increase in visit charge (95% CI: 291%–341%, p<.001), increased inpatient length of stay (IRR: 2.87, 95% CI: 2.62–3.12, p<.001), and increased likelihood of discharge to SNFs (OR=2.62, 95% CI: 2.26–3.05, p<.001), but decreased in-hospital mortality (OR=0.32, CI: 0.21-0.45, p<.001). The propensity score matched cohort consisted of 2,010 patients, matching each of the 1,005 that underwent surgery to 1,005 that did not. These cohorts were well balanced across age (78.24 vs 77.91 years), Elixhauser Comorbidity Index (3.68 vs 3.71), and Injury Severity Score (30.15 vs 28.93). This matching did not meaningfully alter the associations determined between surgical management and in-hospital mortality (OR=0.34, CI=0.21–0.55, p<.001) or SNF discharge (OR=2.59, CI=2.13–3.16, p<.001). Lastly, the positive control cohort of patients with concurrent SCI had higher rates of SNF discharge (50.0% vs 42.6%, p<.001), surgical management (32.3% vs 9.7%, p<.001), and in-hospital mortality (28.9% vs 5.6%, p<.001). CONCLUSIONSThis study lends insight into the epidemiology of geriatric type II OFs and quantifies risk factors influencing adverse outcomes. Patient informed consent should include a discussion of the protective association between definitive surgical management and in-hospital mortality against potential operative morbidity, increased lengths of hospital stay, and increased likelihood of discharge to SNFs. This information may impact patient treatment selection and decision making.

The Subjection of the Creature to the Futility of Idolatry: The Scope and Application of Romans 8:19–22

Abstract What Paul has to say in Rom 8:19–22 about the subjection of ἡ κτίσις to futility, its bondage to corruption, and its groaning in pain is usually read as a statement about the general condition of creation, ruined by the sin of Adam as indicated in Rom 5:12, which, along with believers in Jesus, yearns for final restoration. The argument put forward here will be that the conceptual frame for the passage is furnished not by the story of the fall but by the more focused and characteristically Hellenistic-Jewish polemic against “Greek” idolatry developed in Rom 1:19–23. What troubles Paul as a pious Jew in the Mediterranean world is the subjection of the material of creation—wood, stone, gold, silver—to futile religious practices that result in the corruption of life. The whole of creation groans in solidarity with the abused “creature,” but in the “present time” there is also a groaning community that bears confident witness to the approaching end of the impious pagan order.

INTERRELATION OF TEMPORAL FOCUS, SUBJECTIVE AGE AND SUBJECTIVE WELL-BEING OF PEOPLE IN RETIREMENT

Aim: Theoretical substantiation and empirical confi rmation of the interrelation between the components of a person’s psychological time at the retirement period of life and subjective well-being. Methodology: Theoreti-cal analysis of the literature on the research topic, psychodiagnostic method, methods of mathematical statistics. For Interrelation of Temporal Focus, Subjective Age and Subjective Well-Being of People in Retirement 57data collection, the following methods were used: “Temporal Focus Scale” by A. Shipp, “Age-of-me” by B. Barak and “Life Satisfaction Scale” by E. Diener. The study was conducted in 2022, during the work 223 pensioners were interviewed, living in Chelyabinsk and the Chelyabinsk region. Results: In the course of the study, a number of interrelations between components of the psychological life time (temporal focus and subjective age) and the sub-jective well-being of pensioners were found. Association between physical and cognitive-emotional components of subjective age with subjective well-being confi rms that people who think that they look and feel younger thantheir chronological age are more satisfi ed with their life in retirement. A correlation between subjective well-being and a focus on the present was found, that is evidence that a person who is deeply involved in the processes taking place in the present, who is not inclined to “get stuck” in memories and is not absorbed by worries about the future feels more prosperous. It has been established the existence of the correlation between the intellectual component of subjective age (“assessment of the age” of one’s own interests and hobbies in comparing with the interests of people of a certain age) and the focus on the present and future time. Research implications: The study contributes to the understanding of the relationship between the subjective perception of life in retirement and the feeling of life satisfaction. The results provide a basis for further research into the role of psychological life span in success-ful post-retirement secondary socialization.

Paediatric Cushing syndrome: a prospective, multisite, observational cohort study

Paediatric endogenous Cushing syndrome is a rare condition with variable signs and symptoms of presentation. We studied a large cohort of paediatric patients with endogenous Cushing syndrome with the aim of describing anthropometric, clinical, and biochemical characteristics as well as associated complications and outcomes to aid diagnosis, treatment, and management. In this prospective, multisite cohort study, we studied children and adolescents (≤18 years at time of presentation) with a diagnosis of Cushing syndrome. Patients had either received their initial diagnosis and evaluation at the Eunice Kennedy Shriver National Institute of Child Health and Human Development (Bethesda, MD, USA) or been referred from other centres in the USA or outside the USA. We collected participants' clinical, biochemical, and imaging findings and recorded their post-operative course until their latest appointment. Of 342 paediatric patients with a diagnosis of Cushing syndrome, 193 (56%) were female and 149 (44%) male. 261 (76%) patients had corticotroph pituitary neuroendocrine tumours (Cushing disease), 74 (22%) had adrenal-associated Cushing syndrome, and seven (2%) had ectopic Cushing syndrome. Patients were diagnosed at a median of 2 years (IQR 1·0-3·0) after the first concerning sign or symptom, and patients with adrenal-associated Cushing syndrome were the youngest at diagnosis (median 10·4 years [IQR 7·4-13·6] vs 13·0 years [10·5-15·3] for Cushing disease vs 13·4 years [11·0-13·7] for ectopic Cushing syndrome; p<0·0001). Body-mass index z-scores did not differ between the diagnostic groups (1·90 [1·19-2·34] for adrenal-associated Cushing syndrome vs 2·18 [1·60-2·56] for Cushing disease vs 2·22 [1·42-2·35] for ectopic Cushing syndrome; p=0·26). Baseline biochemical screening for cortisol and adrenocorticotropin at diagnosis showed overlapping results between subtypes, and especially between Cushing disease and ectopic Cushing syndrome. However, patients with ectopic Cushing syndrome had higher urinary free cortisol (fold change in median cortisol concentration from upper limit of normal: 15·5 [IQR 12·7-18·0]) than patients with adrenal-associated Cushing syndrome (1·5 [0·6-5·7]) or Cushing disease (3·9 [2·3-6·9]; p<0·0001). Common complications of endogenous Cushing syndrome were hypertension (147 [52%] of 281 patients), hyperglycaemia (78 [30%] of 260 patients), elevated alanine transaminase (145 [64%] of 227 patients), and dyslipidaemia (105 [48%] of 219 patients). Long-term recurrence was noted in at least 16 (8%) of 195 patients with Cushing disease. This extensive description of a unique cohort of paediatric patients with Cushing syndrome has the potential to inform diagnostic workup, preventative actions, and follow-up of children with this rare endocrine condition. Intramural Research Program, Eunice Kennedy Shriver National Institute of Child Health & Human Development, National Institutes of Health.

A study of acromegaly-associated headache with somatostatin analgesia.

To characterise somatostatin analogue responsive headache in acromegaly, hitherto not systematically documented in a significant cohort. Using the UK pituitary network, we have clinically characterised a cohort of 18 patients suffering from acromegaly-related headache with a clear response to somatostatin analogues. The majority of patients had chronic migraine (78%) as defined by the International Headache Society diagnostic criteria. Headache was present at the time of acromegaly presentation and clearly associated temporally with disease activity in all cases. Short-acting somatostatin analogues uniquely resolved pain within minutes and the mean duration of analgesia was 1-6 hours. Patients on long-acting analogues required less short-acting injections (mean 3.7 vs. 10.4 injections per day, p=0.005). 94% used somatostatin analogues to control ongoing headache pain. All patients presented with macroadenoma, most had incomplete resection (94%) and headache was ipsilateral to remnant tissue (94%). Although biochemical control was achieved in 78% of patients, headache remained in 71% of them. Patients selected for this study had ongoing headache post-treatment (mean duration 16 years after diagnosis); only 4 patients reached headache remission 26 years (mean, range 14-33) after the diagnosis. Headache in acromegaly patients can be persistent, severe, unrelieved by surgery, long-lasting and uncoupled from biochemical control. We show here that long-acting analogues allow a decrease in the number of short-acting analogue injections for headache relief. Further studies are needed to understand the mechanisms, markers and tumour tissue characteristics of acromegaly-related headache. Until then, this publication serves to provide the clinical characteristics as a reference point for further study.

Family Saga as a Genre of World Literature

This article questions the reasons for the interest in the genre of saga, and discusses the peculiarities of its construction depending on the time and place of its origin, starting with the oral tradition. This genre is defined firstly by describing the life of no less than three families during a considerable span of history of a country, it also includes precise environmental details, such as dress and behavior, and exact dates of events against which the life of the heroes flows. Yet there are some differences in the choice of the narrator (whether it is the heroes themselves, or an objective observer of the events), the way of presenting time and space, ways of communication, etc. These differences are analyzed in the examples of four novels representing four literary traditions. The specifics of Russian literary tradition are also emphasized.

Kant and “tabula Russia”

The article offers an attempt to understand the present state of Kant’s legacy in Russia on the threshold of the Tercentenary. An explanans is found in the metaphors of “tabula rasa” and “unplowed virgin soil,” first used by Leibniz in relation to Russia in his letters and memoranda addressed to tsar Peter I and other members of the Russian elite, which became the country’s “absolute metaphors to live by” up to present time. Several known and unknown episodes from the history of the reception of Kantian ideas, his followers in Russia, and the transformation of the urban environment of Kant’s life in Königsberg, as it was becoming Kaliningrad, are presented through the prism of this metaphor. Without hoping to make specific recommendations of any use from such metaphorical grounds, this study aims to emphasize the depth, interconnectedness, and basic, metaphysical tension of the relationship between Europe and Russia, which cannot be terminated at will by either side, or by a third party. In a situation where the sides are doomed to dialog, Kant, appropriated by Russia as its “subject,” occupies the unique position of mediator of philosophical understanding and peaceful action.

Влияние формы тороидальной задней поверхности на углы режущего клина и механические напряжения вдоль режущей кромки сверла

Introduction. Drilling holes with standard tolerance varying from IT8 to IT12 is widely used in industrial production. However, at present time, there are neither comprehensive studies, nor scientifically justified recommendations for the rational choice of the geometry of the cutting part of drills with a toroidal flank surface. Therefore, the computer-aided design (CAD) of new drill designs with a toroidal flank surface and finite element modeling (FEM) of the stressed state of its cutting part are important tasks. The purpose of the work is reducing both the range of change in the rake angle and the wedge angle of the cutting wedge along the cutting edge from the periphery to the center and the equivalent stresses in the cutting wedge. In this paper we investigate changes in the rake and wedge angles of the cutting wedge depending on the radius of the generatrix line of the toroidal flank surface as well as changes in equivalent stresses in the cutting wedge, which depend on changes in the radius of the generatrix line of the toroidal flank surface. The research methods include the fundamentals of the theory of cutting, CAD methods, and the FEM, which was applied in this work to new drill designs. Results and discussion. It is found that the range of changes in the rake angle and the wedge angle of the cutting wedge of the drill decreases compared to the standard design with decreasing radius of the generatrix line of the flank surface. A CAD system for drills with a toroidal flank surface is developed. As a result, the range of changes in the rake angle along the cutting edge decreased by 86 % for a drill with a minimum radius of the generatrix line of the toroidal surface compared to that with the conical flank surface, the range of the wedge angle of the cutting wedge decreased by 56 %, and the maximum equivalent stresses decreased by 2.13 times. It is also important to note that in this case, the wedge angle is close to constant for half of the drill tooth. These indicators exceed those for existing designs of the twist drills that indicate the key achievement of this paper.

Was there a better time to be a mother? Past and present times of socio-cultural fear of crime in Turkiye

Was there a better time to be a mother? Past and present times of socio-cultural fear of crime in Turkiye