bluuebunny/crossref_metadata_2025_split huggingface dataset:
PROPAGANTION, ECOLOGICAL-BIOLOGICAL FEATURES, SIGNIFICANCE OF RED FESCUE (FESTUCA RUBRA L., POACEAE)
Authors: Mytsyk L. P. 
Published: February 2020

It is shown that red fescue form (Festuca rubra var. genuina Gr. et Godr.) is the long root-curtin cereal and a perfect «builder» of turf couver. This type contains more mezophytes than another types, though there are forms from gigrophytes to mezokserofit. In Ukraine it’s the common type of meadow herbage which can be find in forest, foreststeppe zone, in Carpathians. In the steppe zone it is mostly adventitious.
Original never described before property of Festuca rubra var. genuina Gr. et Godr. is the optional ortotrophnyh ( vertical growth). This phenomenon contributes to the formation of vertical orientation turf (registered in shading conditions and increased air humidity). Support and the basis for this are the Tree trunks and rocks are herewith its support.
Festuca rubra is one of the most applicable plants for making of high quality lawns and antierosion sod cover in the steppe zone including the industrial pollution conditions, in the zone of spraying by sea spray as well as for growing of “roll turf”.
Ecological-biological properties of Festuca rubra give the big possibilities for improvement of its range, the most closely adapted to the specific conditions of habitat in the steppe zone and introduction of high-performance seed here.
Seed quality indeces of Tilia under environment pollution conditions caused by Prydniprovska TPP emissions, Dnipro city
Authors: Gritsay Z. V. , Iusypiva T. I. , Tryfonov M. O. 
Published: February 2020

The problem of full seed is one of the major issues of reproductive biology of plants. The gap between potential and real seed production, which is constantly observed in nature, becomes dramatically evident in terms of the extreme growth terms. This issue became relevantin connection with the growth of environmental pollution caused by technogenic influence. This paper discusses the research results obtained while analysing the effect that emissions, produced by Prydniprovska TPP (Dnipro, Ukraine), have on Tilia genus seed quality indices. The research objects were Tilia platyphyllos Scop., T. europaea L. and T. cordata Mill. The samples were taken in October of 2016 in the two sites of the monitoring coverage: the test area was the tree plantation adjacent to the Prydniprovska TPP (the main toxic substanceswere NOx, SO2, CO, solid impurities) in the city of Dnipro, Ukraine; the reference area was the Botanical Garden of Oles’ Honchar Dnipropetrovsk National University.In terms of the industrial site, there is the decrease of seed viability in all the examined representatives of Tilia genus. Moreover, the indices of the seed fullness and 1,000 seed weight went down in the two species (T. cordata and T. platyphyllos). The research demonstrated the difference in the sensitivity of the reproductive systems of the research objects to technogenic exposure. Thus, T. cordata seeds appear to be the most vulnerable, while the seeds of T. platyphyllos and T. europaea remain the most tolerant to it. Recommendations are suggested to use the species of Tilia genus in planting of greenery in the inductrial zonez of the steppe Pryniprovya.
Heavy metals as indicators of dynamics of the circulation of substances on recultivated lands of the Western Donbass
Authors: Zverkovsky V. M. , Shamray M. V. 
Published: February 2020

The biological cycle of matter in artificial plantations of forest rehabilitation sites of the Western Donets Basin was studied.
The content and patterns of microelements’ migration in plants, tree waste, litter and soils are determined. Manganese, copper, lead, chromium, nickel and titanium were under investigation.
The dependence between the microelements content in tree waste, litter and soil and their main physicochemical characteristics as well as the correspondence of forest growing conditions to the optimal limits of the elements’ content in soil for plants normal development are characterized.
The factors influencing the trace elements content in the fill-up reclaiming layer are analyzed.
The reasons for the wide variation range of the microelements content in the leaves of experimental trees, and the possibility of using different ground types and plantation patterns are explained. It makes possible to estimate the importance of the biological stage of rehabilitation for the preventing technogenic influence on the environment.
The formation of herbage covers in Scots Pine plantations on recultivated lands of Semenivsko-Golovkivskiy lignite open-cut
Authors: Masiuk O. M. , Lisovets O. I. 
Published: February 2020

The studies were conducted in the 20-year-old plantations of Pinus sylvestris L. cultivated on recultivated lands of Semenivsko-Golovkivskiy lignite open-cut. The sample areas are located within five types of edaphic variety of technosol that determines the specificity of forest growth conditions and development of forest plantations on man-made slope of 5-8º. Type 1 is located on a plateau. The edaphotope is represented by sandy loam solid with mechanical impurities of rippled clays (0-85 cm) in the upper layer, and sand one deeper. Type 2 is located on the upper third of the slope. The edaphotope is represented by 0-20 cm of loessial clay loam, 20 cm and deeper there is a medium clay. Type 3 is located on the middle third of the slope. The top layer of 0-10 cm consists of humus; heavy loam is 10 cm and deeper. Type 4 is located on the lower third of the slope. The edaphotope is represented by light and medium clays of different colors; below 130 cm brown coal is found throughout the profile. Type 5 is located in the valley line. Edaphotope is presented by the mixture of heavy clay loams, red-brown and coal clay; below 120 cm throughout the profile there is the formation of brown coal. Humidification conditions are atmospheric.
The research results have shown that the formation of grass stand in the Scots Pine plantations depends on number of factors, such as topography, humidification conditions and availability of nutrients, planting density, lighting conditions, etc. The grass stand, formed in the pine plantations is dominated by perennials (78-93 %). Climate morphs are represented by hemicryptophytes (63-79 %). Among heliomorphs, it is observed fragmented dominance of species, partly demanding to light (scioheliophyte) over light-demanding ones that is connected with the increase of density of planting. Mesotrophic group of plants dominates among trophomorphs. Depending on the edaphic conditions, the role of oligotrophic and megatrophic species is growing. The vast number of species among cenomorphs on all plots are the plants that belong to different groups of stepants and ruderants. Most species are pollinated by insects (69 – 79 %) and are spread by the spreading diaspore with elastic stalks by shocks (42 – 53 %).
Summarizing the research results, it should be noted that, in addition to the influence of woody vegetation on the lower tiers of biogeocenoses, edaphic conditions are of great importance for their formation, as well as elements of the landscape, both created initially and formed as a result of the gradual fragmentary subsidence of the territory of the dump. These factors regulate the ratio of different groups of biomorphs, climamorphs, trophomorphs, hygromorphs, heliomorphs and cenomorphs in the grass stand. Climatic conditions, influence of surrounding phytocenoses of undisturbed lands set the direction of succession on the way of formation of zonal grassy group.
Conformal radiotherapy in combination with cetuximab for stage Т1–2 tongue cancer with N1–2b regional metastases detected after preventive lymphadenectomy
Authors: Sikorsky D. V. , Kanishcheva N. V. , Podvyaznikov S. O. , Skamnitsky D. V. , Smetanina S. V. , Ermolaeva A. M. , Bazanov K. V. , Pakhomov S. R. 
Published: February 2020

The study objective is to analyze the experience of conformal radiotherapy in combination with cetuximab for cervical lymph node (LN) metastasis in patients with early-stage tongue cancer who had undergone multicomponent surgeries.Materials and methods. This retrospective study included 48 patients with primary squamous cell carcinoma of the tongue (Т1–2) that were treated in Nizhny Novgorod Regional Clinical Oncology Dispensary between 2012 and 2019. The experimental group comprised 25 patients who underwent hemiglossectomy with simultaneous preventive cervical lymph node dissection. The control group was composed of 23 patients who underwent hemiglossectomy alone due to the presence of concomitant somatic pathology. Before surgery, none of the patients had any signs of metastatic lesions in the cervical LNs according to the results of clinical and instrumental examinations. After surgery, 100 % of patients from the experimental group were found to have N1–2b cervical LN metastases at histological examination. Patients from the control group developed clinical signs of cervical LN metastasis within a year after operation. All patients underwent radiotherapy. The experimental group was divided into two subgroups: patients from subgroup 1 (n = 11) received cetuximab due to disease progression, whereas patients from subgroup 2 (n = 14) received cisplatin. Participants from the control group received no chemotherapy due to their concomitant somatic disorders and because regional metastasis was not confirmed.Results. In the control group, the time between surgery and patient’s death varied between 8 and 14 months. Patients from subgroups 1 and 2 survived for 12–60 months and 8–48 months respectively. So far, 9 patients from subgroup 1 and 6 patients from subgroup 2 are alive. Among them, 8 participants from subgroup 1 and 4 participants from subgroup 2 have no signs of disease progression. Three patients from subgroup 2 died of cardiovascular diseases (they had no cancer progression within 3 months after the completion of chemotherapy).Conclusion. Preventive lymph node dissection in patients with stage Т1–2 tongue cancer enables early detection of subclinical N1–2b metastases and ensures timely initiation of therapy. Our experience confirmed safety of cetuximab plus radiotherapy used to improve disease control and increase patient’s survival.
Epidemiology of ophthalmooncology among the adult population of the Nizhny Novgorod Region
Authors: Golovanova M. A. , Saakyan S. V. , Denisenko A. N. 
Published: February 2020

The study objective is to estimate the prevalence of different tumors of the visual organ among the adult population of the Nizhny Novgorod Region.Materials and methods. Epidemiological study was conducted on the basis of a retrospective analysis of medical documents of 1601 patients over 18 years of age, both sexes and different age groups receiving treatment and diagnostic measures in the period from 2008 to 2017.Results. It was found that the share of benign tumors accounted for 64.08 %, and malignant – 35.92 %. The most common tumors of the eyelids, epithelial benign diseases account for 25.23 %. Among tumors of the uveal tract (21.17 %) malignant neoplasms in the choroid are 10.68 %.Conclusion. In the structure of oncopathology of the population of the Nizhny Novgorod Region, eyelid tumors are common, most of which are of epithelial origin. Among the neoplasms of the uveal tract malignant neoplasms of the choroid prevail.
Implementation of database using python flask framework
Authors: Chauhan Nidhi , Singh Mandeep , Verma Ayushi , Parasher Aashwaath , Budhiraja Gaurav 
Published: February 2020

This paper is aimed at development of a college database management system that can be used in any educational institution. Python flask framework is used to implement this application, that can be accessed throughout the institution or by any specific department of the institution. This system offers different features to the students and the members of the staff which includes attendance and marks of the students that can be accessed by both student and staff but can be only updated by staff of particular department . Students as well as staffs have separate logins that can be accessed by them easily . The system also includes a library management system which works in real time,a micro transport management system and a training and placement management system.Library management system keeps track of the books issued and also calculates the fine generated for delay in book returning and transport system maintains the record of each student i.e bus number ,route of that bus etc . A separate system for analysing the placement record of the college is also present . This system is developed to maintain and facilitate easy access to information to every member associated with this system. For this the users must be registered with the system after which they can access their accounts as well as modify data as per the permissions given to them.
Python flask framework is the technology that we have used to develop the college management system. Flask is a web framework written in python. It can be classified into microframework because it does not require any particular tolls or libraries. However flask supports extension that can add application features . For frontend we have used HTML,CSS and javascript whereas for backend we have used python flask and mysql.This system helps college and universities to save time , money and resources.
The trend of software cost estimation in Ethiopia Case study : Addis Ababa
Authors: Nega Asebe Teka 
Published: February 2020

For a different item, you can purchase it. There are different costs to purchase that you can analysis the benefit and loses, even if on the software it has different approaches to analysis their wages, the developer company can get their analysis by the different methods. There are a lot of software cost estimation methods are appearing in different years but still, those methods have their own drawback on making a correct effort and scheduling estimation, here in the paper Today there are different software cost estimation methods that the software company uses from the requirement to implementation phase. Corrected cost estimation supports us to complete the project on planned times and budgets. This paper is mainly presenting the current situations of cost estimation on software placed in Addis Abebas different software compony
Comparing Different Positions of the Spinal Needle Tip, During Spinal Anesthesia of the Pilonidal Sinus Surgery
Authors: Güneş Dilara , Konur Hüseyin , OZYAPRAK Buket , Erkan Gönül 
Published: February 2020

Aim: Spinal anesthesia is usually the anesthetic method of choice in pilonidal sinus surgery, which is mostly performed as an outpatient operation. Spinal anesthesia is administered via injection of local anesthetic agents into subarachnoid space. Throughout history, spinal needles have undergone changes and have greatly reduced in thickness. In this study, we aimed to compare the effects of caudal or cranially oriented spinal needle tips on anesthesia in patients undergoing pilonidal sinus surgery.
Materials and Methods: This study was performed prospectively with 60 patients who underwent pilonidal sinus surgery with spinal anesthesia at Medeniyet University Göztepe Training and Research Hospital between 01.03.2013 - 30.11.2013. Patients were randomly divided into two groups based on the direction of the spinal needle tip. 25 G Quincke tipped spinal needles were oriented caudally in Group A (n=30) and cranially in Group B (n=30). Two groups were compared in terms of anesthesia duration, hemodynamic parameters, and postoperative data.
Results: No difference was found in comparison of the demographic data of the two groups. Intraoperative mean arterial pressure and heart rate were significantly lower in both groups compared to baseline values. The incidences of postoperative headache, time until mobilization (min) were significantly high and time until first micturition (min) was significantly low in Group B.
Discussion: The data obtained from our study showed that cranial or caudal orientation of the spinal needle tips may have varying intraoperative and postoperative effects. We believe that further randomized controlled studies with larger sample sizes should be conducted to clarify the subject.
Investigation of the Academic Motivations of the Students Studying Through Distance Education System in Terms of Some Variables / a Case Study of Sakarya University
Authors: Omeroglu Engin , KELESOGLU Fikri 
Published: February 2020

Motivation is one of the important elements for the sustainability of a behaviour. One condition of learning is that it leaves a permanent mark. One of the main references that will ensure this permanence in distance education is the academic performance of individuals. In this research, the students' academic motivations regarding online courses (virtual classes), who study through distance education system in some departments of Sakarya University were examined according to some variables, and the reasons for the low attendance rates in online courses (virtual classes) were investigated. The universe of the research consisted of students who studied at Sakarya University through distance education system while the study sample consisted of 660 students selected by random sampling method. Questionnaires and scales were delivered to the sample group via email. In the research, the "Academic Motivation Scale", adapted to Turkey by Karagüven (2012) and the questionnaire prepared by the researchers, asking about some demographic data were used, and the data obtained were analyzed with SPSS software. In this context, the results obtained from the research are as follows: It was observed that there was a significant difference between the lower dimensions of academic motivation levels and the gender, age, marital and employment status variables of the students who continued their education through online courses by distance education method at Sakarya University. It was found that there were no significant differences between some sub-dimensions of academic motivation and variables. At the end of the study, recommendations for gender, age, marital status and employment status were developed.
the Relation of common ABL kinase domain mutations with resistance to Tyrosine Kinase Inhibiters in patients with Chronic Myeloid Leukemia in Middle Euphrates of Iraq
Authors: Mahdi Al- Musawi Mohammed Sadeq , Raheem Raheem Mahdy , Mahdi Liwaa Hussein , Al-Yasiri Israa Ketab 
Published: February 2020

Background : Chronic myeloid leukemia (CML) is a hematopoietic stem cell disease, associated with a reciprocal translocation between chromosomes 9 and chromosome 22, lead to the formation of the BCR-ABL fusion gene (Philadelphia chromosome). This fusion gene is believed to play golden role in the initial development of CML with constitutive tyrosine kinase activation.
Successful use of tyrosine kinase inhibiters (TKIs) play a role in improve survival and increase prevalence of CML, but un fortunately mutations in the BCR-ABL kinase domain may cause, or contribute to increase, resistance to TKIs in CML patients. .
Objective: This study was designed to assess the association of five most common BCR-ABL kinase domain mutations (T315I, M351T, E255K, M244V and E255V) with resistance state of CML patients on TKIs in Iraqi Middle Euphrates region.
Patients and methods: A retrospective case-control study in which 85 patients with chronic myeloid leukemia in chronic phase (45 patients as cases group and 40 patient as control group) were selected from three hemato-oncology centers in middle Euphrates in Iraq during the period from January 2016 till October 2016 out of a total of 240 CML patients ( 108 male and 132 female) who were registered during this period in these three centers and all patients on TKI (Imatinib and Nilotinib). Venous blood sampling done for BCR-ABL kinase domain mutations screening.
Results: four patients from cases group (4/45) were carriers of one of five selected ABL kinase domain mutations and no one of control group. T315I mutation was detected in 3/45 (6.6 %) of resistant patients, with a significant risk association to develop resistance to TKI therapy (odd ratio and C. I. ) (6.67, 0.3340 -133.2255). E255V was detected in 1/45 ( 2.2 %) and also had significant risk association to develop resistance to TKIs( odd ratio, C.I.) (2.73, 0.1081 -68.9424). No one of these mutation had significance correlation with demographic or hematological features. M351T, E255K and M244V were not detected in any one of our study groups CML patients.
Conclusions: T315I and E255V among five ABL kinas domain mutations were detected in our CML patients with resistance to TKIs. All of them may play a role in development variable degree of resistance to first and second generation TKIs weather primary or secondary.T315I mutation is most common mutation within BCR-ABL domain kinase gene.
Opodatkowanie paliw i energii elektrycznej na statkach a kwestia ochrony środowiska
Authors: Mirek Ireneusz 
Published: February 2020

Emisje pochodzące ze statków prowadzą do zanieczyszczania powietrza substancjami szkodliwymi. Aby ograniczyć zanieczyszczenie, podejmuje się wiele działań na gruncie prawa transportowego i prawa ochrony środowiska. W prawie podatkowym Unii Europejskiej z reguły przewiduje się jednak zwolnienia z podatku zarówno w odniesieniu do paliw żeglugowych, jak i energii elektrycznej produkowanej na pokładzie statków, co nie jest korzystne ze względów środowiskowych.
Niektóre państwa członkowskie – wyjątkowo – stosują jednak obniżoną stawkę podatku akcyzowego od energii elektrycznej dostarczanej bezpośrednio na statki zacumowane w portach (energia elektryczna pobierana z lądu). Obniżenie stawek stwarza ekonomiczną zachętę do wykorzystania energii elektrycznej pobieranej z lądu w celu ograniczenia zanieczyszczenia powietrza w miastach portowych i polepszenia jakości powietrza z korzyścią dla zdrowia mieszkańców