bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated analysis of drilling tool wear
Authors:   Insitute of Earth Sciences, Belgorod State University, Belgorod, Pelipenko N. A. , Baklanov R. R. ,   Insitute of Earth Sciences, Belgorod State University, Belgorod, Protsuk I. S. ,   Insitute of Earth Sciences, Belgorod State University, Belgorod
Published: December 2020

The integrated analysis of wear of drilling tools is performed. The wear pattern is analyzed versus the build of the acting faces of drilling tools. It is found that a cooling lubricant containing a surface active substance (SAS) has influence on the axial load of the tool and on the drilling capacity. The correlation between wear and current roughness of acting faces of tools is revealed. The additive technology developed and validated for feeding cooling lubricants enables higher competitive capability of allmetal tool owing special grooves made in the drill body by 3D printing to ensure SAS inlet to the rock–drilling tool contact. The comparative study of wear of tools under vibro-percussive loading with regard to the loading condition is carried out. We studied three tools made of steel grades 65S2VA, 5KHNM and of hard alloy VK-8. An attempt is made to utilize hidden capacities of spring steel in manufacture of tool capable to operate under superposition of vibrations. For such rocks as sandstone, limestone, shale, iron ore, clay, etc., having strength categories from IV to X on the Protodyakonov scale, it is possible to use tools made of spring or structural steel, which enables considerable reduction in the cost of drilling. Structural steels used to manufacture drilling tools for hard rock drilling under superposition of vibrations sometimes can efficiently replace expensive tools made of hard alloys. Another beneficial factor is high brittle fracture resistance of instrument steels as against hard-alloy tools. The study reveals the dependence of tool durability on the tool geometry. Preliminary observations show that geometry is an essential factor for tools made of structural and instrumental steels. It is suggested that wear of instrumental steel tool insignificantly differs from hard-alloy wear. In some cases, well-hardened instrumental steel successively competes with hard alloy.
Influence of power fluid temperature in hydraulics on operating efficiency of hydraulic mining excavators
Authors:   College of Mining, National University of Science and Technology—MISIS, Moscow, Russia, Krivenko A. E. , Khanh Zhang Kuok ,   College of Mining, National University of Science and Technology—MISIS, Moscow, Russia
Published: December 2020

The Republic of Vietnam has great mineral resources. Open pit mines use hydraulic excavators. In hot climate, the excavators lose capacity, and the number of the hydraulics failures grows. To identify the causes of unstable operation of the hydraulics, the authors analyze the capacity reduction factors, namely, hydraulic pump leaks. The test subject is pump HPV95 for Komatsu hydraulic excavators. The axial-piston pump leaks take place in clearances of control and injection gears, and only have mutable and cyclic behavior in the piston and cylinder clearances. This has an adverse effect on uniformity of the pump flow and on stability of the injection pressure. Generally, leaks can be evaluated from the Reynolds equation of fluid flow rate in the ring clearance. The input data are the design variables of axial-piston pump HPV95 and power fluid temperature range of Komatsu hydraulic mining excavators operated in open pit mining in the south in the Republic of Vietnam. Matlab-based Simulink modeling shows that with increasing temperature of power fluid, leaks in the injection gear grow nonlinearly in the absolute value and so does the surging amplitude in the pump flow. As a consequence, the pressure fluctuations and vibrations in the hydraulic gear elevate. The modeling also exhibits higher surge and reduced net capacity of the hydraulics with rising temperature of power fluid. These changes are caused by reduction in the flow friction in the ring channel between the piston and block of cylinders. Thus, the power fluid cooling system engineering subject to hydraulics capacity, operating conditions and cooling methods is highly critical for the efficient operation of hydraulic mining excavators.
Modern approaches to sectorial education in geology and mining via museum activities and digital technologies
Authors:   Vernadsky State Geological Museum of Russian Academy of Sciences, Moscow, Russia, Malyshev Yu. N. , Titova A. V. ,   Vernadsky State Geological Museum of Russian Academy of Sciences, Moscow, Russia
Published: December 2020

Development of innovative methods and approaches in education is an important task for the educational system in the era of digitalization. The goal of this article is to present the experience of interaction between Vernadsky State Geological Museum of Russian Academy of Sciences and the educational community based on digital technologies. The work under consideration targets implementation of museum facilities and methods for education in the field of Earth sciences using state-of-art technologies. It results in a new quality of communication environment within the continuous education system applied as for education as such so for career guidance in mining and geology. The paper presents examples of innovative techniques and methods such as scientific and educational projects and programs, on-line video lectures, teleconferences with universities being conducted by leading scientists of Russian Academy of Sciences, businessmen, and politicians, schoolchildren’s ‘Young Geologists Club’ and participation of its members in various contests both in off- and on-line modes. The accumulated experience demonstrates success of the digital technologies’ use and their integration into the educational environment. The study was carried out under R&D Project No. 0140-2019-0006.
Disparate Projects, Coherent Practices: Constructing New Urbanism through the Charter Awards
Authors: Trudeau Dan
Published: December 2020

The Congress for the New Urbanism’s (CNU) annual Charter Awards offers a rich set of documents with which to understand the discursive construction of the New Urbanism movement in the world. Every year, since 2001, developers and designers submit work representing their plans and projects to CNU for consideration of an award. In each case, a collection of urban design practitioners with expertise in New Urbanism comes together as jurors to evaluate the submissions. A handful of projects are recognized with an award and profiled in the Charter Awards booklet. This booklet offers a snapshot of what the movement’s awards program jurors in a given year see as its exemplary work and most innovative accomplishments. Using a framework for understanding the discursive labor that design award programs perform, I examine two decades worth of Charter Awards and analyze narratives and messages presented therein concerning how New Urbanism exists in the world. I advance three claims through this analysis. First, the Charter Awards as a text discursively constructs disparate projects and plans as part of a singular movement. Second, the Charter Awards narrate New Urbanism as a worldwide movement that transcends particularities of place, culture, and history. Finally, CNU uses the Charter Awards to effectively claim universal relevance to urban development despite the particularities of places and the divergence of development contexts.
Possibilities of palliative chemotherapy in patients with locally advanced and metastatic pancreatic cancer
Authors: Moskvicheva L. I. , Bolotina L. V.
Published: December 2020

Currently, pancreatic cancer remains one of the most unfavorable tumor pathologies, characterized by pronounced difficulties in diagnostics and treatment, a significant impact on the ability to work and quality of life of patients, and low indicators of patient life expectancy. Features of the development of malignant neoplasms of this localization contribute to limiting the possibility of performing radical surgery, and therefore a special role in the treatment of patients with pancreatic cancer is assigned to chemotherapy. Specific systemic drug therapy for this pathology is the most important and, in the majority of cases, mandatory element of treatment. It can be carried out in a neoadjuvant, adjuvant and independent mode, include mono- or multi- component schemes, and be combined with other types of systemic or local antitumor effects. The choice of chemotherapy regimen depends primarily on the General somatic status of the patient and is determined by the potential toxicity of a particular combination of cytostatics. This review of the literature demonstrates the effectiveness of various chemotherapy regimens in patients with stage III–IV pancreatic cancer in the first and second lines, describes the frequency of adverse reactions to treatment and their nature, and mentions ways to reduce the toxicity of multicomponent drug therapy regimens. This review is based on the analysis of scientific sources of the Internet resource "National Center for Biotechnological Information".
Qualitative and quantitative characteristics of different types of tumor microvessels depending on the histological type of cervical cancer
Authors: Senchukova M. A. , Makarova E. V. , Shurygina E. I. , Volchenko N. N.
Published: December 2020

Purpose of the study.To give a qualitative and quantitative assessment of different types of tumor microvessels depending on the histological type of cervical cancer (CC).

Material and methods.The tumor samples from 76 patients with CC stage I–IIA who received the surgical treatment on the first phase were the object of study. The immunohistochemical study was performed using antibodies to CD34 and podoplanin. Statistical analysis of the data was performed using the Statistica 6.0 software.

Results.In CC, the following types of tumor microvessels have been identified: normal microvessels, dilated capillaries (DCs) with a normal endothelial lining, DCs with a weak expression of CD34, DCs of contact type, capillaries in the solid component of tumor, the atypical dilated capillaries (ADCs), the structures with partial endothelial lining and the lymphatic capillaries in lymphoid and polymorphic cell infiltrates. It was found that DCs with a mild expression of CD34 (p=0.0005), DCs of contact type (p=0.000005), and capillaries in the solid component of tumor (p=0.006) were correlated with the prognosis in early CC. The detection frequency of this tumor microvessels was lower in more prognostically favorable squamous non-keratinizing CC, while in the prognostically unfavorable squamous cell keratinizing CC and adenocarcinoma of the cervix uteri, the higher DCs values with a mild expression of CD34 (р=0,004 and р=0.005, respectively) and DC of contact type (p=0.02 and p=0.14, respectively) were typical.

Conclusion.We consider it is expedient to further study the relationship of different types of tumor microvessels with clinical and morphological characteristics and prognosis of cervical cancer.
Mechanical Properties of Joints Made in Steel S1300QL Using Various Welding Methods
Authors: Łomozik Mirosław
Published: December 2020

The article presents applications of high-strength quenched steels in various industrial sectors and the chronological development of various grades of the aforesaid steels. The research-related tests involved flat butt joints made in 7 mm thick steel grade S1300QL, welded using the following methods: TIG, A-TIG, MAG involving the use of a hard flux-cored surfacing wire, MAG method involving the use of a solid wire, T.I.M.E. method involving the use of a solid wire, laser welding method without the use of the filler metal, hybrid (HLAW) method involving the use of a metallic flux-cored wire, electron beam welding without using the filler metal. The research also involved the performance of the mechanical properties of the welded joints made in quenched steel S1300QL using various welding methods. The joints made using the laser welding method, hybrid welding method and the electron beam welding method were characterised by tensile strength higher than the minimum yield point of steel S1300QL, amounting to 1300 MPa. In turn, the tensile strength of the joints made in steel S1300QL using arc welding methods was lower than the minimum yield point of the steel. All of the test joints were subjected to non-destructive digital radiographic tests. The tests concerning the mechanical properties of the joints with respect to various welding methods were subjected to comparative analysis. The research work finished with the formulation of concluding remarks concerning the mechanical properties of the joints.
Innovative Robotic System for MAG Welding with Two Filler Metal Wire Feeders
Authors: Nowak Mirosław , Wiśniewski Daniel , Czeladziński Łukasz
Published: December 2020

The article describes an innovative robotic MAG method for the welding for ship elements. The method involves the use of two wire feeders and one torch, making it possible to weld two different steel grades. In addition, the robot application is equipped with an off-line programming DTPS system (Desk Top Programming & Simulation System) as well as an arc sensor, a gas nozzle touch sensor and a laser touch sensor featuring a seam finding function. The system is also provided with a welding parameter monitoring and archiving system.
O SISTEMA DO COMPLEXO TEMÁTICO COMO ALTERNATIVA PEDAGÓGICA PARA ESCOLAS DE ASSENTAMENTOS RURAIS
Authors: Oliveira Danielle Arena de , Machado Vitor
Published: December 2020

O tema central deste artigo é a Educação do Campo, em especial aquela desenvolvida nos assentamentos de reforma agrária no Brasil. Seu objetivo é demonstrar que a implantação do Sistema do Complexo Temático nas escolas desses assentamentos pode ser considerada uma importante alternativa pedagógica, que prioriza o estudo da realidade por meio de uma formação teórico-prática, a qual tem a auto-organização dos alunos e o trabalho como princípio educativo. Para tanto foi realizada uma pesquisa bibliográfica, fundamentada em autores que se dedicaram ao estudo dos complexos temáticos. Por meio da análise desses estudos é possível considerar que o Sistema do Complexo Temático pode contribuir para avanços consideráveis ao desenvolvimento do processo de ensino e aprendizagem das escolas do campo, a partir da perspectiva do trabalho, oportunizando aos alunos pobres da zona rural um aprendizado por meio de situações concretas.
Placental Polypus
Authors: Ginzburg M.
Published: December 2020

Dr. Doran dwells on the question of tumors originating from particles of sequential tissue that are long retained in the uterus or F. tube.
A case of primary tube cancer
Authors: Feinberg B.
Published: December 2020

Investigation of a 45-year-old, married O para, behind the anteverted and attached uterus, found a tuberous, 2 elastic tumor, the size of a child's head, which filled the entire small pelvis.
Ergotinol as a substitute for ergotine
Authors: Weber F.
Published: December 2020

Gottshalk in 1892 proposed at a gynecological congress in Brussels a new drug secalis cornuti, prepared by Dr. Vossvinkel and named ergotinol by him.
About vaginostricture in prolapse
Authors: Weber F.
Published: December 2020

In 1893, Freund, Jr. described a new method for uterine prolapse surgery, in which the vagina is narrowed by means of several silver wire ligatures applied in a ring-like manner under the vaginal mucosa.
On the guiding principles in the choice of methods for restoring the broken integrity of the pelvic floor and abdominal wall
Authors: Ott Dm.
Published: December 2020

Mm. Yy! In embarking on the flattering and at the same time responsible duty of delivering a speech at the annual meeting, which is imputed by society to its elected representatives, I believe that the most appropriate topic for such speeches should be considered questions of principle, widely affecting one or another department of our specialty. Having outlined it comprehensively, the speaker's task is mainly reduced to comparing what is already firmly in the sense of scientific and practical with the side of the matter that, while still being controversial and open, awaits resolution and needs development or reform. Naturally, the broader the theme is, the more difficult it is to give it perfect lighting. Being fully aware of this position, I nevertheless outlined in my today's speech the question of "the guiding principles in the choice of methods for restoring the broken integrity of the pelvic floor and abdominal wall." Choosing such a question as a topic for my speech, I was guided by the following considerations: firstly, in essence, being, so to speak, general, it should be of interest to all those taking part in the meeting, especially since this issue is important not only for its purely scientific interest , but it also affects the practical aspects of life, with which the gynecologist has to meet at every step; in 2, those purely scientific foundations, not only clinical, but anatomical and physiological, which must inevitably be taken as the basis of practical conclusions and conclusions, are too ignored and the whole issue from the principled side is not covered to the extent that it is absolutely necessary for the success of practical conclusions: positions and conclusions based on hasty empirical conclusions are accepted too easily and are not sufficiently supported not only by scientific data, but represent large gaps in the sense of further clinical observations. In 3, I was guided by the desire to present in the system the rich material that is at my disposal in the Imperial Clinical Institutes, Midwife and V. Kn. Elena Pavlovna, mainly in the sense of the results achieved, especially since at different times I myself, as well as my assistants in clinical activities, have had occasion in recent years to speak to you with reports on individual particulars of the issue I have raised today.
The Surgical Anatomy of the Internal iliac Artery in Woman and a more radical Operation for malignant Disease of the uterus
Authors: Ginzburg M.
Published: December 2020

In the first half of his article, prof. Pryor describes the ramifications of art. il icae internae, based on research by Quain, Jastschinsky Kelly, Clark and their own works. 15 figures (two of them on the topography of the pelvis with painted and injected vessels) illustrate the text. For the impossibility of reproducing the drawings here, I will confine myself to indicating the original.
For the treatment of ovarian tumors during pregnancy, childbirth and the postpartum period
Authors: Khazan S. Yu.
Published: December 2020

All authors agree that in order to prevent complications that may arise, an ovarian tumor diagnosed during pregnancy should be removed immediately, because on the one hand, pregnancy does not worsen the prognosis of the operation, and on the other hand, abortion is observed only in a small number of cases (20-22%)
To the question of the content of microorganisms in human milk and to the etiology of the breast
Authors: Khazan S. Yu.
Published: December 2020

The author undertook a study of milk not only of puerperas, but also of pregnant women and children; in addition, he drew attention to the presence of microorganisms in the nipple area, as well as whether this person was already fed or not.
Surgical treatment of a cancerous uterus
Authors: Gubarev A. P.
Published: December 2020

Surgical treatment of any malignant neoplasm can make sense only when the possibility of relapses is taken into account and everything that can be achieved by art to eliminate them or prevent them. This is a principle that modern surgery persistently applies in the development of surgical methods for removing neoplasms, no matter in whatever area it develops. The greatest development in this direction has recently undergone surgery for breast cancer. At present, there can no longer be any question of removing, in addition to the neoplasm, only enlarged and infiltrated or suspicious glands, it is not enough even to remove healthy glands: in the form in which the details of this operation were developed by prof. Kocher), Watson Cheyne) and others, the removal of all tissue in the armpit and in the circumference of the musculi pectoralis majoris is a condition, the need for which can hardly be discussed. In a word, the removal of those tissues in which relapses develop more easily and most often is a rule adopted by modern surgery. Therefore, the principles that guide modern gynecology in the surgical treatment of uterine cancer seem to be completely random and poorly understood: in many cases, not the tissues that are most dangerous in the sense of relapse are removed, namely those in which relapses appear only as a rarity, or an exception and which more than others resist him.
Study of visual functions with multifocal versus monofocal intraocular lenses after phacoemulsification in patients with age-related cataract
Authors: Gupta Garima , Anand Neebha , Khurana Ashok Kumar , Gupta Jaya
Published: December 2020

Early visual rehabilitation and targeting emmetropia using small incisions and foldable IOLs is the main objective of modern cataract surgery, the so termed ‘refractive cataract surgery’. This current single-center prospective study assessed the clinical outcomes and thus patient satisfaction of multifocal IOLs over monofocal IOLs.

To study visual functions with a refractive –diffractive type multifocal versus monofocal intraocular lenses after phacoemulsification in patients with age related cataract.

40 patients undergoing phacoemulsification for decreased vision due to age related cataract were randomly divided into 2 groups. Patients in group 1 underwent multifocal IOL [refractive –diffractive type] implantation and patients in group 2 underwent confocal IOL implantation. Postoperatively, patients were followed up for 90 days and assessed for unaided visual acuity for distance, intermediate and near vision, contrast sensitivity using Pelli-robson chart.

At the end of the study, uncorrected visual acuity for distance (UDVA) was 6/9 in 65% patients in group 1 while 50% had uncorrected visual acuity of 6/9 in group 2. Uncorrected intermediate visual acuity (UIVA) in group 1 was N10 or better in 55% patients while in group 2, 75% patients had N24. Uncorrected near visual acuity (UNVA) in group 1 was N6 in 35% patients and N8 in 35% while in group 2, 75% patients had N18 vision, A paramount statistical difference was seen in the two groups.(p=0.001). The mean contrast sensitivity in group 1 was 2.04+/-0.23 and group 2 was 2.20+/-0.07(although statistically significant but within normal limits). None of the patients in any group had any significant complaint of glare or haloes.

Mutifocal IOLs decrease the spectacle dependence of patients without compromising the subjective visual functions
Relaciones frías en la guerra fría: Hungría y Nicaragua
Authors: Szente-Varga Mónika
Published: December 2020

Con base en los documentos resguardados en el Archivo Nacional de Hungría, el ensayo examina los aspectos políticos y económicos de las relaciones húngaro-nicaragüenses entre 1979 y 1990, dentro del marco de la guerra fría. Para la Unión Soviética, la importancia de América Latina se derivaba de su cercanía a Estados Unidos, contando así con una relevancia geoestratégica y política. En cambio, el principal atractivo de la región para Hungría fue el aspecto comercial. Hubo por tanto discrepancias entre las metas soviéticas y las húngaras. Naturalmente, Hungría se ajustó a las demandas de Moscú, pero tratando de sacrificar lo menos posible sus intereses nacionales. Esto contribuyó a crear una gran diferencia entre las expectativas nicaragüenses y la disposición húngara en la práctica. Si bien el ensayo subraya el rápido e indudable desarrollo de los contactos bilaterales, intenta al mismo tiempo eliminar el mito de las relaciones perfectas.
Modernización de centrales hidroeléctricas en América Latina y el Caribe: Identificación y priorización de necesidades de inversión
Authors: Ubierna María , Alberti Juan , Alarcón Arturo D.
Published: December 2020

La energía hidroeléctrica es la fuente de energía renovable más utilizada en el mundo, y en América Latina y el Caribe (ALC) abastece casi el 50% de la demanda de electricidad. Las proyecciones actuales identifican que la capacidad hidroeléctrica instalada aún seguirá creciendo para atender a la demanda eléctrica futura. Este crecimiento debe considerar la rehabilitación del parque existente, y no solamente el desarrollo de nuevos proyectos. Considerando que una parte importante del parque hidroeléctrico latinoamericano se desarrolló hace más de dos décadas, es de vital importancia identificar las necesidades de modernización de las centrales hidroeléctricas de la región. La mayor ventaja de la rehabilitación es que muchos de los impactos ambientales y sociales ya han sido mitigados, además de ser, en general, inversiones de alta rentabilidad. Este aspecto es de mucha relevancia, debido a la necesidad de respaldo de generación firme en los sistemas existentes y en aquellos que están incorporando energía renovable intermitente, considerando además los desafíos presentes para el desarrollo de nuevas centrales hidroeléctricas, particularmente con grandes embalses. El presente estudio identificó el potencial de modernización en términos de número de plantas y capacidad instalada, por región y país, considerando centrales de más de 10 MW y más de 20 años de antigüedad, y estimó la inversión necesaria. Para los cerca de 113 GW analizados en este estudio, los resultados muestran que se requiere una inversión de aproximadamente USD 32.952 millones en modernización, sólo considerando instalaciones eléctricas y electromecánicas, foco de este trabajo. Es evidente que, para atender una inversión de esta magnitud en la región, es necesaria una acción inmediata y coordinada por todos los actores, tanto públicos como privados, lo que implica un rol activo de los reguladores y entidades de planificación, habida cuenta de las restricciones fiscales que pueden surgir por las políticas desarrolladas para atender las consecuencias del COVID19.
Empirical Analysis on the Influence of Business Environment on Foreign Direct Investment Inflow Based on the Panel Data on 26 Countries
Authors: Wang Jiang , Li Zhendong , Sun Xueying
Published: December 2020

With the intensification of global competition and development of investment theories, foreign direct investment (FDI) is no longer solely affected by economic factors. Many noneconomic factors, such as policies and institution, now play an important role in FDI inflow. As a composite indicator, business environment has attracted a growing attention from investors. From theoretical and empirical perspectives, this paper quantifies and qualifies the influence of business environment over the FDI under different conditions. The impact mechanism of business environment on the FDI was refined by decomposing business environment into multiple subfactors, and considering various factors of different economies, such as natural resources (NR), technological resources (TR), and political stability (PS). An empirical analysis was conducted on the panel data of 26 countries in 2005-2018. The results show that: the host country can attract more FDI inflow by improving business environment, NR, TR, and PS; excessively high NR and TR, to a certain extent, suppress the promotion effect of business environment on FDI; four subfactors of business environment, namely, the protection of small and medium investor (PI), cross-border trade (CT), electricity supply (ES), and insolvency (IN), have relatively high promotion effects on FDI inflow. The research results enrich the theories on FDI and business environment, and provide a reference for the design of innovative polices.
Farmers’ Willingness as Well as Its Compensation Strategy to Prevent and Control Agricultural Non-Point Source Pollution in Water Source Areas-Based on a Comparative Analysis of Pesticide and Fertilizer Inputs
Authors: Lin Jie , Pan Jianlin
Published: December 2020

This paper took the voluntary pesticide and fertilizer reduction ratios of the farmers as the substitute variables for farmers' willingness to prevent and control the agricultural non-point source pollution. Then, the paper adopted an improved double-bounded dichotomous choice (DBDC) to obtain farmers’ voluntary pesticide and fertilizer reduction ratios and the corresponding compensation attitudes of the farmers. The research found that, in contrast to fertilizers, pesticides are a stronger output-related factor for farmers, and any reduction in pesticides would cause great output fluctuations. After the influencing factors of the farmers’ compensation attitude towards pesticide and fertilizer reduction were subject to ordinal regression analysis, the main influencing factors of farmers’ compensation attitude towards fertilizer and pesticide reduction were obtained respectively, which had further proved that for farmers, compared with pesticides, the risk of fertilizer reduction is lower, and their attitudes are quite different, but as long as the compensation is sufficient, they are willing to take more stringent measures.
A Prospective Comparative Study to Evaluate the Effect of Alpha Blocker on Ureteric Orifice for Ease of Ureteroscopy in Patients of Ureteric Calculus and BPH
Authors: N Imdad Ali , Sankhe Paresh , T.H.S. Ravishankar , Gangadharaiah Jayaprakasha
Published: December 2020

BACKGROUND The selective alpha-blockers are widely used in the clinical treatment for ureteral stones as MET (Medical Expulsive Therapy). American Urological Association and European Association of Urology, strongly recommend that patients with ureteral stones be alpha-blockers to promote stone passage. Due to the physiological effect of alpha-blockers on the ureter, researchers hypothesized that the use of alphablockers before ureteroscopy may help during the Ureteroscopic procedures, making it easier and safer. One critical step in doing ureteroscopy is directing scope into vesicoureteral junction as most of the time its non-dilated and this is place injury and later stricture chances are high which lead to failure of treatment.3 But in literature, there is a discrepancy with this hypothesis as some studies have failed to demonstrate the benefits of technical ease and lower complication rate with alpha-blocker being used in the preoperative period. METHODS We conducted a cross sectional study in the department of urology from January 2019 to January 2020. 30 patients of ureteric calculus on alpha-blocker therapy and 30 patients of BPH on alpha-blocker ± 5 alpha reductase therapy were included for study. During URSL (Ureteroscopic Lithotripsy) we used 6 / 7.5 fr URS (Ureterorenoscope), ease of admitting URS in vesicoureteral junction noted. The need for ureteral dilator for admitting URS, presence of mucosal injury, and bleeding or false passage noted as difficulty in instrumentation. And documentation of finding done in excel. RESULTS Out of 60 patients, 24 (40 %) patients didn’t need dilatation of ureteric orifice and Ureteroscopy was done easily among which 8 (33.33 %) were BPH patient and 16 (66.66 %) were ureteric calculus patient this difference is statistically significant with p-value 0.010. 36 (60 %) patients needed dilatation of ureteric orifice to facilitate URS of which 22 (61.11 %) patients were from the BPH group and 14 (38.88 %) are ureteric calculus group. The study shows a statistically significant difference with p-value 0.029. CONCLUSIONS Our study demonstrates that alpha-blockers failed to show a statistically significant difference in relaxation of the ureteric orifice in non-ureteric calculus patients. Further large group, multi-centric studies are required to find a definitive role for alpha blockers prior to URS. KEYWORDS BPH, Silodosin, Ureteroscopy, Ureteric Orifice, Alpha Blocker, Alpha 1a, Medical Expulsion Therapy
Características de las Empresas de Base Tecnológica de Origen Universitario en México
Authors: Garcí­a Martí­nez Julio , Ramí­rez Erazo Abril , Cruz Delgado Daniela
Published: December 2020

Las empresas de base tecnológica se han convertido en un tema relevante para los gobiernos y las universidades que buscan impulsar el desarrollo a través del emprendimiento y la innovación. Sin embargo, aún quedan algunas dudas sobre las mejores condiciones para impulsar este tipo de empresas, por ello, el objetivo de esta investigación fue caracterizar a las empresas de base tecnológica de origen universitario (EBT-U) en México enfocándose en algunas variables calificadas como crí­ticas para su emergencia. El alcance de la investigación es descriptivo con una muestra que pertenece a incubadoras de las principales universidades del paí­s y de diversos estados de la república. Principales hallazgos: el 45% de las EBT-U fueron formadas por emprendedores de nivel licenciatura, el 89% contaba con experiencia laboral, el 54% de los emprendedores estudió en el área de ingenierí­a, 68% dijo desconocer la polí­tica de propiedad intelectual de la universidad, el 52% cuenta con propiedad intelectual y sólo el 23% recibió financiamiento adicional al propio, de amigos y familiares.
Psycho-Semantic Reconstruction of Psychological Risk Readiness Perceptions by the National Guard of Ukraine Servicemen
Authors:   Doctor of Science in Psychology, Professor, Head of Research Center, National Academy of National Guard of Ukraine, Kharkiv, Ukraine, PRYKHODKO Ihor , YURIEVA Nataliia ,   PhD in Psychology, Senior Researcher of the Research Center, National Academy of National Guard of Ukraine, Kharkiv, Ukraine; ORCID ID 0000-0002-1543-3744, LYMAN Anastasiia ,   Researcher of Research Center, National Academy of the National Guard of Ukraine, Kharkiv, Ukraine; ORCID ID 0000-0001-5484-3378, BAYDA Maksim ,   Senior Researcher of Research Center, National Academy of the National Guard of Ukraine, Kharkiv, Ukraine, BLOSHCHYNSKYI Ihor ,   Doctor of pedagogical sciences, professor, Head of the Foreign Languages Department, Bohdan Khmelnytskyi National Academy of the State Border Guard Service of Ukraine, Khmelnytskyi, Ukraine http://orcid.org/0000-0003-1925-9621, KUZINA Viktoriia ,   PhD in Psychology, Lecturer of the Department of General Military Disciplines, Ukrainian Military Medical Academy, Kyiv, Ukraine; ORCID ID 0000-0002-9059-1611
Published: December 2020

The article presents the results of a study of the views of military servicemen of the National Guard of Ukraine on psychological readiness to take risks. To achieve the goal of the study, the authors used the psycho-semantic method. The methods of the specialized semantic differential are chosen by the psychological tool of the psycho-semantic method. The semantic differential has been has made it possible to evaluate the subjective aspects of the meaning of the concept of “psychological readiness for risk” associated with the meaning, stereotypes, social attitudes. Officers represent a soldier who is psychologically prepared for the risk, as follows. This person is trying to achieve a successful result under any circumstances, independent from management or subordinates, relying only on his own strength, showing determination and self-confidence, professionally trained, observant and emotionally stable. Contract servicemen believe that a psychologically prepared for the risk of a soldier can make quick and deliberate decisions, has lots of stamina and strong-willed person, honest and patriotic. This soldier acts deliberately and carefully, not allowing his actions to harm others. Servicemen of military conscription think that a soldier who is psychologically prepared for risk is resistant to extreme factors. He has a principle, he is reliable, outgoing person, always ready to offer the help of his comrades and people around him. This soldier is satisfied with his profession and proud that serves just in the National Guard of Ukraine.
Emotional Intelligence of Employees of Risky Professions: Theoretical and Empirical Discourse of the Research
Authors:   Lviv Polytechnic National University, Ukraine, ANDRUSHKO Yaryna , STETSENKO Iryna ,   Academy of the State Penitentiary Service, Ukraine, AVERINA Kateryna ,   Bogdan Khmelnitsky Melitopol State Pedagogical University, Ukraine, ALIEKSIEIENKO Tetiana ,   Institute of Problems on National Academy of Educational Sciences of Ukraine, MARCHAK Tetiana ,   Podilsky Special Education and Rehabilitation Socio-Economic College, Ukraine, DOROFEY Svitlana ,   Kamianets-Podilskyi Ivan Ohiienko National University, Ukraine
Published: December 2020

A professional, working in dangerous conditions, requires a high level of steadfastness to stress, caution, and responsibility. The goal of the research is aimed at theoretical and empirical disclosing of the essence of emotional intelligence in employees of risky professions. Emotional intelligence is seen as a leading personal competence and ability. The structural components of emotional intelligence are analyzed in detail from the points of view of well-known foreign and domestic psychologists. The integrative indicators of emotional intelligence have been empirically revealed in rescue workers and patrol officers. In our study participated 1000 respondents with the same length of service in 4 years, in particular: firefighters (n = 500); patrol officers (n = 500). The psycho-diagnostic tools included: Hall test, Russian version of the test of emotional intelligence of J. Meyer, P. Salovey, D.Caruso MSCEIT-V2.0 in the adapted version of O. Sergiienko, I. Vetrova and the method of studying the professional identity of L. Schneider. The respondents showed a low level of development of emotional intelligence. However, the differences were also revealed, in particular, it is more clearly for firefighters to understand their own emotions, but for law enforcement officers the practical use of emotions is in priority. At the same time, the common problem is inability to manage own emotional experiences.
Quantitative-Qualitative Analysis the Theory of Mind in Patients with Psychotic Disorder
Authors:   University of Ss. Cyril and Methodius in Trnava, Slovakia, DOKTOROVÁ Dominika
Published: December 2020

The theory of mind deficit, as the ability to attribute mental states to others, could explain some of the symptoms of patients with psychotic disorder. The poor estimate of the mental states of other people could explain paranoid thinking, some variations in speech, peculiarities in behavior and other symptoms found in patients with this diagnosis. The aim of the research is to describe the theory of mind in psychiatric patients, as schizophrenia can be seen as a disorder of mental states. The research sample consisted of 30 patients diagnosed with schizophrenia or schizoaffective disorder. Data are obtained via questionnaire method and evaluated quantitatively and qualitatively. For research, we have used non-standardized mind-based verbal tasks. Based on frequency tables, psychiatric patients most failed in the theory of mind in dimensions - metaphors (60%) and mental states (50%). The other variables scored better while 30% of probands failed in the theory of mind of the 1st order, 26.7% of probands failed in the theory of second order, 16.7% in emotional states and 23.3% of all psychiatric patients in physical properties. Subsequently, we focused on the qualitative evaluation of individual areas. We found out, that patients scored the worst in the theory of mind tasks that refer to the mental states of others.
The State of the Art in Smart Grid Domain: A Network Modeling Approach
Authors:   COMSATS University Islamabad, Pakistan, AKRAM Waseem , NOOR Saba ,   Lahore Garrison University, Lahore, Pakistan, MANZOOR Awais ,   COMSATS University Islamabad, Pakistan
Published: December 2020

. Scientometric analysis is a useful tool to perform a comprehensive bibliographic review. It allows not only to understand the key areas of research but also provide visual representation of each entity involve in the research. In this study, we provide a detailed statistical as well as visual analysis of agent-based smart grid research by adopting complex network-based analytical approach. The study covers all scientific literature available online in Web of Science database. We are interested in identification of key papers, authors, and journals. Furthermore, we also investigate core countries, institutions, and categories.
Research on the Training Mode of Product Design Talents Based on the Mode of Sino Foreign Cooperation in Running Schools
Authors: Chen Weixiao
Published: December 2020

As an application-oriented major with strong practicality, product design specialty is oriented to cultivate compound senior professional and technical talents with solid scientific and technological foundation and artistic innovation ability, and pays attention to the system technology of efficiency and benefit research. Practice teaching occupies a large proportion for the traditional "inculcation" theoretical teaching mode has been unable to meet the needs of talents in the rapid changing of the market. At present, under the mode of Sino foreign cooperation in running schools, the effective integration of international talent outlook, quality views and high-quality education resources at home and abroad has greatly improved the quality and level of training for product design talents. This paper focuses on the issues related to the training mode of product design talents under the mode of Sino foreign cooperation in running schools.
Research on the Design of Interdisciplinary Simulation Comprehensive Training Teaching System of Economics and Management from the Perspective of New Finance and Economics
Authors: Fan Qingzhu , Zhao Ziwei
Published: December 2020

In the new financial era, the realization of teaching objectives must be based on the integration and development of different majors. Therefore, for any professional practical courses, we should not confine our vision to this major, but should focus on the whole economic management specialty. Based on this, we designs a set of comprehensive simulation training teaching system. The system can build a three-dimensional talent training mode, cultivate innovative and applied talents.
Exploration on Reform of Electronic Technology Course Design
Authors: Guo Ying
Published: December 2020

Electronic technology course is one of the compulsory courses for students majoring in electricity, which occupies an important teaching position in the whole teaching system. At the same time, the teaching of this course has very high requirements for students' hand-on ability and practical ability. Especially in the context of teaching reform in higher vocational colleges, it is required that the professional talents to be trained must be innovative, practical and applied. Based on this, the teaching of electronic technology course must also be reformed and innovated, actively meet the needs of education and teaching reform, and improve the overall quality and efficiency of teaching. This paper introduces the current situation of electronic technology course design in colleges and universities in China, and analyzes the problems existing in the course implementation. In view of the innovation and practice of this course, some reform suggestions are put forward.
Study on the Application of Chinese Traditional Graphics in the Design of Chinatown Guide System
Authors: Su Yushan
Published: December 2020

The overseas Chinatown is the main social and consumption place of local Chinese, the tourist attraction of domestic tourists, and also popular among the local foreigners. Chinatown has the remarkable characteristics of cultural complexity and functional diversity. As a medium of environmental information and human communication, the guide system is particularly significant under the complex urban environment of Chinatown. This paper takes Chinese traditional graphics as the starting point to explore the combination of modern design and Chinese traditional concepts in the guide system, aiming to build a modern urban oriented guide system combined of Chinese cultural characteristics and western culture.
Practice and Exploration of Entrepreneurship Education System to Promote College Students' Employment and Entrepreneurship
Authors: Zhang Yuli
Published: December 2020

In recent years, the society and colleges and universities pay more and more attention to the development of entrepreneurship education. Entrepreneurship education greatly promotes the development of college Students' employment and entrepreneurship. It is the deepening and development of quality education and innovation education, and is also an important way for higher education to meet the needs of current education development and realize its own reform and development. Therefore, this paper analyzes the necessity of entrepreneurship education, studies the actual situation of college Students' employment and entrepreneurship, and analyzes the existing problems, as well as explores the effective countermeasures based on the reminder function of college students' entrepreneurship and employment in the new period.
The Status Quo of Chinese Medicine Education in Higher Vocational Colleges and Practice and Application of the Training Model of "Teacher Leading Apprentice" Tutorial System
Authors: Zhou Kai , Wang Ming
Published: December 2020

“Teacher succession” has always been a traditional way of inheritance of Chinese medicine. Through the succession of teachers, the valuable experience accumulated by previous generations of doctors in long-term clinical practice can be passed on from generation to generation. The advantage of this inheritance model is that it can carry out practice to the greatest extent, learn theory in practice, and better combine theory with practice, which is more in line with the characteristics of Chinese medicine education.
Problems Encountered in the Efficient Organization of Teaching in Art Colleges and Universities
Authors: Chen Yang
Published: December 2020

Today there is a need to discuss the problem of effective provision and intensification of the educational process of the music university, which is relevant for music-educational theory and performing practice. To this end, the conditions and content of the teaching of the students-instrumentalists of the music university were analyzed adequately to the requirements of the educational standard in order to understand the specifics of the relationship and interaction between the competencies and their elements on the formed activities - performing and musical-educational. This analysis helped to identify contradictions and shortcomings in the students' mastery of the basics of musical and educational theory and practice. At the same time, it is stated that the process of successful professional development of students-performers of the music university should be accompanied by the formation of a sustainable interest in the object of musical and educational activity, needs to it as a support for further improvement of performance skills.
Practice and Thinking of Mixed Teaching Based on MOOC Class
Authors: Luo Meng
Published: December 2020

MOOC, which refers to a large-scale open online course, is an "Internet + education" online course model emerging from the information society. The MOOC is different from the traditional curriculum model. It is not only for dozens of students, it is for thousands of students regardless of nationality or region. In recent years, in China, the MOOC course has received great attention. Through the analysis of Coursera's data, the number of registered users in China has increased sharply every year, far exceeding other countries in the world. In many higher education institutions in China, the study of the MOOC teaching model has become one of the key points of the teaching reform. The mixed teaching based on the MOOC has begun to be used in college English, ideology and politics, biochemistry, engineering, nursing, etc. In professional courses. This article discusses the mixed teaching practice based on MOOC. By analyzing the difference between mixed teaching and traditional teaching, it points out the key points and difficulties of mixed teaching in practice.