bluuebunny/crossref_metadata_2025 huggingface dataset:
Egg and Spoon
Authors: Bendon Helen
Published: January 2020

A looped video exploring stillness within domestic spaces, Egg and Spoon uses a couple's repetitive race to depict the complexities of human relationships and the tension between psychological and narrative stasis.
Dorothy Carrington
Authors: Myer Clive
Published: January 2020

This film challenges how documentaries portray reality. It explores the dreams of Corsican "Mazzari" and the life of writer Dorothy Carrington to blur the lines between filmmaker, subject, and cultural myth. By questioning Carrington's own background and biases, the film argues documentaries can't simply depict objective truth, but are shaped by the filmmaker's cultural lens.
Hubbub
Authors: Tarrant Patrick
Published: January 2020

This film documents audience reactions to "Band in a Bubble" – a three-week event where a band lived and recorded in a transparent studio – as part of a larger exploration of how documentarians can represent a culture where audiences actively engage with and influence the media they consume.
The Switch
Authors: Williams Michelle
Published: January 2020

"The Switch" by artist Michelle Williams explores the tension between documentary filmmaking and the subjective experience. While filming a spiritualist séance, Williams wrestles with the camera's role in shaping the narrative and the audience's perception of reality. The final work blurs the line between documentation and artistic manipulation, leaving viewers to question what they "see."
Rehearsing Reality
Authors: Simoes Nina
Published: January 2020

A "docufragmentary" exploring and the Theatre of the Oppressed’s practices at the point of interaction with peasants of Brazil’s Landless Movement, exploring how these drama techniques really work and in what circumstances and conditions they are applied.
Mirror Mirror
Authors: Moffat Zem
Published: January 2020

Mirror Mirror is a 58min single-screen narrative film that explores whether the two ideas that ‘gender is drag’ and that ‘documentary film is a drag of reality’ can mutually inform and comment upon each other.
White Body
Authors: Parker Kayla
Published: January 2020

Stop-motion animation of a small white doll: the figure grows from a ball of modelling clay, is cut and sewn shut, and then buried and ‘reborn’, among a nest of white granulated sugar and the dark stain of slut’s wool - the fluffy dust that collects under furniture and along skirting boards.
265 Looping Snapshots
Authors: Casini Silvia
Published: January 2020

The video 265 Looping Snapshots engages with Magnetic Resonance Imaging (MRI), a scientific technique that generates images of the body (and particularly, the brain) for scientific and medical purposes.
On The Border
Authors: Thynne Lizzie
Published: January 2020

Lizzie Thynne’s evocative biography, On The Border is a complex multi-layered work portraying place, absence and subjectivities – merging biography and autobiography in its exploration of the life of author’s mother, Lea through the family archive.
U Know Them by Their Fruit
Authors: Magness Shannon
Published: January 2020

Shannon Magness’s challenging documentary, U Know Them By Their Fruit, explores her ambivalent relationship with her right-wing cousin, Jay – who passionately believes that only white men should be allowed to vote in the USA. The film and accompanying research statement explore the problem of representing the extreme familial ‘other’. Drawing on – and troubling – Michael Renov’s concept of domestic enthnography, Magness subtly explores the intersubjective relationship between Jay and herself. Viewed in the context of current political developments, such as the UK backlash in the aftermath of the Woolwich killing and the epidemic of racist attacks in Greece, Magness’s film walks a tightrope between tolerance and abhorrence, sometimes agreeing with Jay’s anti-US government stance, but always aiming for an unfinalised representation of both filmmaker and documentary subject.
In Search of Pleasures Past
Authors: Roberts Les
Published: January 2020

Les Roberts and Ryan Shand’s In Search of Pleasures Past, is a nostalgic oral history project which documents amateur filmmakers’ reflections on the reception of two films about New Brighton, a seaside resort on the Wirral. The film operates on more than one level, on the one hand it is a paean to the past – both the forgotten pleasure park celebrated in the first film, Fair Play (1966) but long gone by the second, Pleasures Past (1974) – and a eulogy to the residual medium of Super 8mm film on which they are both recorded. On the other hand, it is a meditation on amateur filmmaking and its role in the local community, documenting the research process of the AHRC Mapping the City in Film project, University of Liverpool, from which the film arose. The mix of interviews with the cine club members and sequences of their footage from the original films enables a thought-provoking dialogue between past and present, “this is a film about a film. It is also about a place, its decline and the poignancy of memory”.
Unseen Women
Authors: Mairs Jolene
Published: January 2020

Jolene Mairs’ Unseen Women: Stories from Amargh Gaol, is a powerful film which documents women’s prison memories from all sides of the conflict in Northern Ireland. Part of the Prison Memories Archive project, headed up by Cahal McLaughlin, the film stitches together the audio-video histories of women involved with Armagh Gaol during the Troubles, including a former prison officer, a loyalist and republican inmates and the Open University tutors who visited them. The filmmaking process, documented in the accompanying research statement, offers an ethical alternative to traditional documentary practices, where participants are given editorial control as opposed to relinquishing ownership to the production company. The film uses the technique of located memory gathering, recording the on-screen participants reminiscing whilst walking around the derelict prison, without the prompt of a formal interview. Unlike some conventional documentaries, the film does not resort to illustrative cutaways, allowing the women’s testimonies to butt up against each other, thus presenting their disparate perspectives in the same physical space, allowing their voices to be heard and asking us to navigate the uncomfortable past and its reconciliation.
Stone Street
Authors: Kydd Elspeth
Published: January 2020

Stone Street, by the late Elspeth Kydd, is a compelling auto-ethnographic documentary which examines the Trinidadian diaspora through the lens of her family home in the eponymous Stone Street, Port of Spain. The film offers a moving autobiographic portrait of the Cherrie family and its branches in the US, UK and Canada, mixing home-movie Super 8 footage, photographs, musical recordings and interviews with a lyrical first-person narration. This absorbing film questions the very notion of ‘home’, moving beyond a simple record of family life to become a layered exploration of identity, history, race, representation, place and belonging. Stone Street premiered at Trinidad & Tobago Film Festival, 2012 where it won the award for Cultural Diversity. We are honoured to publish the film here in memory of Elspeth who died prematurely, shortly after completing Stone Street, in April 2013. We are also indebted to Yoram Allon and Tom Cabot at Wallflower Press and editor Alisa Lebow for allowing us to reprint Elspeth’s reflective essay ‘Looking for Home in Home Movies’ in lieu of a research statement.
A Simple Proof for a Forbidden Subposet Problem
Authors: Martin Ryan R. , Methuku Abhishek , Uzzell Andrew , Walker Shanise
Published: January 2020

The poset $Y_{k, 2}$ consists of $k+2$ distinct elements  $x_1$, $x_2$, \dots, $x_{k}$, $y_1$, $y_2$, such that $x_1 \le x_2 \le \cdots \le x_{k} \le y_1$, $y_2$. The poset $Y'_{k, 2}$ is the dual poset of $Y_{k, 2}$. The sum of the $k$ largest binomial coefficients of order $n$ is denoted by $\Sigma(n,k)$. Let $\mathrm{La}^{\sharp}(n,\{Y_{k, 2}, Y'_{k, 2}\})$ be the size of the largest family $\mathcal{F} \subset 2^{[n]}$ that contains neither $Y_{k,2}$ nor $Y'_{k,2}$ as an induced subposet. Methuku and Tompkins proved that $\mathrm{La}^{\sharp}(n, \{Y_{2,2}, Y'_{2,2}\}) = \Sigma(n,2)$ for $n \ge 3$ and conjectured the generalization that if $k \ge 2$ is an integer and $n \ge k+1$, then $\mathrm{La}^{\sharp}(n, \{Y_{k,2}, Y'_{k,2}\}) = \Sigma(n,k)$. On the other hand, it is known that $\mathrm{La}^{\sharp}(n, Y_{k,2})$ and $\mathrm{La}^{\sharp}(n, Y'_{k,2})$ are both strictly greater than $\Sigma(n,k)$. In this paper, we introduce a simple approach, motivated by discharging, to prove this conjecture.
MAT-free Reflection Arrangements
Authors: Cuntz Michael , Mücksch Paul
Published: January 2020

We introduce the class of MAT-free hyperplane arrangements which is based on the Multiple Addition Theorem by Abe, Barakat,  Cuntz, Hoge, and Terao. We also investigate the closely related class of MAT2-free arrangements based on a recent generalization of the Multiple Addition Theorem by Abe and Terao. We give classifications of the irreducible complex reflection arrangements which are MAT-free respectively MAT2-free. Furthermore, we ask some questions concerning relations to other classes of free arrangements.
Asymptotic Enumeration of Orientations of a Graph as a Function of the Out-Degree Sequence
Authors: Isaev Mikhail , Iyer Tejas , McKay Brendan D
Published: January 2020

We prove an asymptotic formula for the number of orientations with given out-degree (score) sequence for a graph $G$. The graph $G$ is assumed to have average degrees at least $n^{1/3 + \epsilon}$ for some $\epsilon > 0$, and to have strong mixing properties, while the maximum imbalance (out-degree minus in-degree) of the orientation should be not too large. Our enumeration results have applications to the study of subdigraph occurrences in random orientations with given imbalance sequence. As one step of our calculation, we obtain new bounds for the maximum likelihood estimators for the Bradley-Terry model of paired comparisons.
From Old West to Cosmopolitan: Changing Narratives of Oklahoma City Tourist Guidebooks
Authors: Payne Adam A.
Published: January 2020

This article seeks to bridge the gap in scholarship between entrepreneurial urbanism and the understanding of place image as presented through tourist guidebooks. Tourist guidebooks have long been used to sell regions and attractions to prospective tourists. Narratives in these guides
often shift to reflect the changing economics, politics, and culture of a region or city. More recently, the rise of entrepreneurial urbanism has been one of those factors that have impacted tourist guidebooks. The (re)construction of a place image through entrepreneurial policies results
in the promotion of a select package of facilities or highlighting specific attributes associated with that place. This article illustrates how entrepreneurial urban projects and policies can directly shape a city's tourist promotions. I use Oklahoma City as a case study to explore these impacts
and examine more than 30 years of tourist guidebooks to understand the changing narratives of the city in light of entrepreneurial urban policies. More specifically, I show that Oklahoma City officials shifted tourist narratives from overt Old West constructs to constructs rooted in cosmopolitanism
in light of entrepreneurial agendas, like the Metropolitan Area Projects and business improvement districts.
Increasing the efficiency of budget investment of entrepreneurial activity in Ukraine
Authors: Vatamaniuk-Zelinska Uliana
Published: January 2020

Purpose. The aim of the article is identification of budget investment trends in Ukraine and development of recommendations for increasing the efficiency of capital investments as the main form of budget investments in the development of domestic entrepreneurship.

Methodology of research. The results of the study are based on the use of abstract and logical analysis (to determine the essence of capital investments as the main form of budget investment in the development of domestic entrepreneurship in Ukraine) and statistical analysis (to study the dynamics of budget investment from state and local budgets). Theoretical and methodological basis of the study is the key provisions, principles and methods of modern economic theory, finance and economics.

Findings. It is established that in order to increase the efficiency of capital investments as the main form of budget investments in the development of domestic entrepreneurship, there is a need to apply transparency of evaluation and competitive selection of investment projects and programs for the development of territories aimed at activating and stimulating entrepreneurial activity in priority areas. The use of step-by-step financing of budget investments from the budget of development of local budgets is substantiated, provided that medium-term and therefore strategic expenditure planning is implemented. It is proposed to reimburse interest rates on loans for entrepreneurs who implement priority development projects of the territories, creating new jobs in accordance with the strategy of modernization of the system of social support for the population, which will allow to increase the efficiency of budget investment at the level of all regions of our country.

Originality. Recommendations for increasing the efficiency of capital investments as the main form of budget investment in the development of domestic entrepreneurship by establishing the lease of land as the difference between the actual rent and the amount of a single tax from the entrepreneurs of group IV are developed.

Practical value. The results of the conducted study can be used by domestic enterprises and local governments to stimulate the development of entrepreneurial activity. This will increase the financial and economic efficiency of local budget revenues from agricultural land operations, either at the lower rent level or at the lower single tax rate.

Key words: capital investments; budget investments; budget; financing; strategic planning; entrepreneurship.
Аdvertising of tourist directions of the Ternopil region
Authors: Danylenko-Kulchytska Viktoriia
Published: January 2020

Purpose. The aim of the article is to analyze the changes that have occurred in modern advertising and to find the best ways of advertising the tourism product of Ternopil region.

Methodology of research. General and special methods are used in the course of the research, in particular: systematic analysis – to reveal the essence of basic categories; methods of analysis and synthesis – in substantiated the process of finding the best ways to advertise types of tourism; methods of observation and generalization – when considering the changing role of advertising in the modern world.

Findings. The characteristic features of modern advertising in the sphere of tourism are considered. Changes in approaches to the advertising process that are taking place in the market are analyzed. The transformation of the advertising consumer himself and the transition of his role from secondary to the main one in initiating the advertising process are analyzed. The ways of promotion of different types of tourism of Ternopil region are offered.

Originality. It has been proven that modern advertising has undergone a significant transformation, namely the transition from marketing the advertised product to providing information services about it. It has been established that the consumer of advertising himself has undergone the change. He initiates the advertising process, actively seeking the information he needs. The methods of advertising the tourist product of Ternopil region in terms of its types are offered.

Practical value. The obtained results of the study can be used by tourism organizations of Ternopil region in choosing the method of promotion of their services, which will contribute to the constant growth of the number of clients and, accordingly, the successful functioning of the tourist organization in the market.

Key words: tourist product; advertising; advertising process; tourist opportunities; types of tourism; advertising means; consumer of advertising; advertising media; advertisers.
Innovative potential of the region: dominant characteristics
Authors: Leshchukh Iryna
Published: January 2020

Purpose. The purpose of the article is to summarize theoretical approaches to determining the nature, structure and sources of innovative potential of a region.

Methodology of research. The following methods are used during the study: systemic and dialectical – to study the dominant characteristics of the region's innovation potential; comparison and synthesis – to study approaches to interpreting the term "innovation potential"; graphic – for a visual representation of the results of the study.

Findings. The approaches to the interpretation of the above category are summarized based on the study of scientific literature devoted to the problem of innovation potential, as well as three main approaches to the interpretation of innovative potential: resource (most common), target and approach by which innovative potential is considered as a measure of ability / result oriented).

It is suggested that the innovative potential of a region means first and foremost the opportunities, and second, the resources and organizational capabilities that enable the creation and implementation of innovations to achieve sustainable development of the region and the country as a whole. At the same time, an important aspect of increasing the innovation potential of the region is, among other things, the institutional capacity of the state to stimulate and support the development of innovation processes.

It is proposed to consider financial and investment, material and technical (industrial), research, market, information, intellectual-personnel and marketing potentials as components of the region's innovation potential.

Originality. The paradigm of innovation potential of the region has been developed, which, unlike the existing ones, provides for: 1) systematization of preconditions for formation and factors of influence on development and enhancement of innovation potential; 2) establishment of functions and sources of innovative potential; 3) determination of components of innovative potential with indication of their quantitative measuring instruments and methods of measurement.

Practical value. The obtained results of the research will be the basis for the development of the author's methodology for complex evaluation of innovative potential of Ukrainian regions.
Key words: innovations; innovative development; innovative potential of the region; region; innovative activity; spatial development; regional economy.
Reforming the armed forces of the country and military-patriotic education as a strategic advantage in the economic rivalry of countries in the global economy
Authors: Honak Ihor
Published: January 2020

Purpose. The aim of the article is to study the features of mutual influence of expenditures of the Ukrainian state budget on national defence, youth and sports on the gross domestic product of Ukraine in the conditions of aggravation of economic rivalry in the global economy.

Methodology of research. The following methods are used during the research: generalization of information and literature sources – to formulate proposals on the progressive development of the Ukrainian economy and quality of its labour resources, on the cohesion of the society and its psychological and physical health through the implementation of expenditures of the Ukrainian state budget for national defence and youth and sports; regression and correlation analysis – to analyse the mutual impact of GDP and expenditures of the Ukrainian state budget on national defence, youth and sports.

Findings. Methods for educating young people are proposed in order to provide an educated and physically healthy workforce for the national economy and defence and security. The influence of arms exports and military equipment on the economy of Ukraine is analysed. The need to carry out some reforms of the Armed Forces of Ukraine in order to increase the country's defence capability and ensure economic prosperity is substantiated. The correlation between the growth of gross domestic product and expenditures of the State Budget of Ukraine through the Ministry of Defence and the Ministry of Youth and Sports, which is linear, is established. Suggestions are made to reform other specific aspects of the state mechanism in order to increase the country's defence capability and ensure the following economic growth.

Originality. The article provides suggestions for reforming youth policy and the national defence sphere to ensure economic growth and strengthen the country's defence capability.

Correlation between the growth of gross domestic product and expenditures of the State Budget of Ukraine through the Ministry of Defence has been established (increase of expenditures on the Ministry of Defence by 1 billion hryvnias has a direct impact on GDP growth in the amount of 29.884 billion hryvnias) and the Ministry of Youth and Sports (growth spending on the Ministry of Youth and Sports by UAH 1 million influences GDP growth by UAH 1.045 billion), which is close.

Practical value. The practical significance of the obtained results is the possibility of studying the mutual influence of the expenditures of the Ukrainian state budget, spent on national defence, youth and sports, on the gross domestic product of Ukraine in the conditions of aggravation of economic rivalry in the global economy.

Key words: national security; arms and military equipment exports; military-patriotic education of youth; reform; economic growth; unemployment; employment; gross domestic product.
Organizational and economic approaches to technological updating of agricultural enterprises
Authors: Svynous Ivan , Havryk Olesia , Byba Valentyna
Published: January 2020

Purpose. The aim of the article is the development of theoretical approaches and practical recommendations for substantiation of instruments for improving the reproductive processes of land by agricultural enterprises. Methodology of research. Abstract and logical, computational, constructive and optimization methods are used to solve these problems, in particular in substantiation of directions of improvement of reproductive processes of agricultural lands and formation of rational organizational and economic conditions for reproduction of elements of MTB of agricultural enterprises. Findings. It has been proved that the No-Till farming system is effective in reproducing the fertility of land resources, which is not plowed, and the surface of the earth is covered with a layer of specially crushed plant residues - mulch residues (mulch). The main advantages of using zero tillage include: saving resources - fuel, labour, time, reducing depreciation costs; reducing the complexity of the technological process; restoration and preservation of the fertile soil layer - reduction or complete prevention of soil erosion; moisture accumulation in the soil, which is especially important in the conditions of the Steppe zone, and, accordingly, a noticeable decrease in the dependence of the crop on weather conditions; increasing crop yields due to the above factors. Originality. The scientific approach to the reproduction of land resources in agricultural enterprises is proposed, which is based on a set of organizational and economic instruments of socially responsible conduct of activity, in particular: the motivation of agricultural producers to introduce organic fertilizers, the introduction of the No-till system, the development of organic production, which will enhance the agricultural production. Practical value. The necessity of improvement of the program of state support of organic producers is proved on the basis of forecasting: compensation of costs for development of systems of management of organic production of agricultural production, costs in the transition period to organic production, partial compensation of costs for the use of organic fertilizers, costs for the use of plant protection products, costs for expertise organic products. It is now important to ensure that agro-technical measures are taken to restore the fertility of land resources through co-financing by agricultural enterprises, united territorial communities and the state. An effective factor, although indirectly influencing the increase in fertility of agricultural land, is the dissemination of knowledge about modern resource-saving technologies that can be provided through advisory services. Key words: material and technical base; agricultural enterprise; fertility; organic production; agricultural lands.
Using Ultrasonic Sensors to Develop a Wireless Level Control in Reservoirs with Liquid Chemical Products
Authors: Bucur Gabriela , Moise Adrian-George , Popescu Cristina
Published: January 2020

The purpose of this paper is to show the research results for improving the quality of a level control system by using an ultrasonic level sensor. By using an ultrasonic sensor in a liquid level control loop, the authors wanted to experiment the use of this new class of sensors, which are working without contact with the liquid surface or volume. In industry, using this type of transducer is becoming more and more useful, having large scale applications, from dangerous liquids reservoirs level monitoring, to waste water level monitoring in treatment plants, and to level control systems for a wide class chemical products. The research also demonstrated the efficiency of the system remote control by using a dual-loop PID controller.
Severe Modifications of Biological Markers in Late Neonatal Sepsis in a Very Low Birth Weight Due to Candida lusitaniae
Authors: Nastase Leonard , Radulescu Luiza , Luminos Monica Luminita , Merisescu Maria Madalina , Jugulete Gheorghita , Stoicescu Silvia Maria
Published: January 2020

Neonatal sepsis is a major cause of neonatal mortality and morbidity in preterm, very low birth weight infants. Coagulase-negative staphylococcus and Candida spp. are among the most common causes of single infections and coinfections in neonates. Candida lusitaniae is rarely reported as an opportunistic pathogen in very low birth weight neonates. Early diagnosis and appropriate antifungal therapy can prevent morbidity and mortality in preterms especially in coinfections. Necrotizing enterocolitis is one of the most catastrophic gastrointestinal emergencies in premature infants in the intensive care neonatal unit, especially in preterm infants. Currently, the pathogenesis of necrotizing enterocolitis is believed to have multifactorial causes. We present the case of a very low birth weight preterm who developed necrotizing enterocolitis and sepsis caused by a coinfection of Coagulase-negative Staphylococcus and Candida lusitaniae.
Vehicles Emissions Under Different Driving Conditions in Urban Areas
Authors: Coman Gelu , Burciu Mugurel Salvadore , Baroiu Nicusor
Published: January 2020

The road traffic is one of the main sources of atmospheric pollution in urban areas. This study aims to identify the emissions level for different driving regimes of diesel-powered vehicles that run into urban areas. The study has been performed in laboratory conditions and simulates various driving modes. This paper investigates the effects of vehicle speed, fuel consumption, acceleration, vehicle load on gaseous pollutant emissions (NOx, CO2, CO). The different pollution levels with smoke are also analyzed between idling regimes (maximum opacity index for fast acceleration between minimum and maximum speed) and different loads. The paper states some recommendations concerning the optimal operating regimes of the cars in urban areas, based on the conclusions on the measured levels of pollution.
Variation of the Chemical Composition of Thymus Vulgaris Essential Oils by Phenological Stages
Authors: Moisa Cristian , Lupitu Andreea , Pop Georgeta , Chambre Dorina Rodica , Copolovici Lucian , Cioca Gabriela , Bungau Simona , Copolovici Dana Maria
Published: January 2020

Thymus vulgaris essential oil is one of the most common oils used mainly in food industry but it could also have applications in medicine and pharmacy. The chemical composition of this essential oil depends on the plant material harvesting time, phenomenological stages, meteorological conditions and growing area of plants. In our study, four different Thymus vulgaris L. var. Donne Valley essential oils have been extracted and characterised. The essential oils have been extracted from plants before and after flowering in two different years. There is an important difference between the chemical composition of oils obtained from plants harvested before and after flowering. Thymol and carvacrol have been found as the major components, but the percentage depends on the phenological stages of the plants and the year of harvesting. Furthermore, the composition of the minor components changed.
Targeting Matrix Metalloproteinases in Atherosclerosis and Cardiovascular Dysfunction
Authors: Dima-Cozma Lucia Corina , Cozma Sebastian , Hinganu Delia , Ghiciuc Cristina Mihaela , Mitu Florin
Published: January 2020

Matrix metalloproteinases (MMPs) are the primary mediators of extracellular remodeling and their properties are useful in diagnostic evaluation and treatment. They are zinc-dependent proteases. MMPs have been involved in the mechanisms of atherosclerosis in various arterial areas, ischemic heart disease and myocardial infarction, atrial fibrillation and aortic aneurysms. Recently, MMP9 has been implicated in dyslipidemia and cholesterol synthesis by the liver. Increased MMP expression and activity has been associated with neointimal arterial lesions and migration of smooth muscle cells after arterial balloon dilation, while MMP inhibition decreases smooth muscle cell migration in vivo and in vitro.
2-Alkylimino-4-(2-Hydroxyaryl)-1,3-Dithiols Derivatives
Authors: Sarbu Laura Gabriela , Lungu Catalin Neculai , Sandu Ion
Published: January 2020

Novel 2-alkylimino-4-(2-hydroxyaryl)-1,3-dithiols have been synthesized by the reaction of the corresponding 4-(2-hydroxyaryl)-2-(N,N-dialkylamino)-1,3-dithiol-2-ylium salts with primary alkyl amines. The imines were obtained as a 1:1 mixture of syn/anti isomers. These derivatives were characterized by NMR and MS spectrometry, UV-Vis and IR spectroscopy.
Antimicrobial Activity and Cytotoxic Effect on Gingival Cells of Silver Nanoparticles Obtained by Biosynthesis
Authors: Andor Bogdan , Tischer (Tucuina) Alina Andreea , Berceanu-Vaduva Delia , Lazureanu Voichita , Cheveresan Adelina , Poenaru Marioara
Published: January 2020

The emergence and development of biofilm is steadily increasing and its currently used prevention and control schemes are free of unwanted effects. Silver nanoparticles obtained through biosynthesis represent an area of interest in the biofilm approach. In the present study, silver nanoparticles were obtained by using the aqueous extract of rosemary leaves which were subsequently tested for antimicrobial activity and for the influence regarding viability of healthy gingival cells. Experiments have shown a significant antimicrobial activity on E. coli, S. aureus, P. aeruginosa and C. albicans. The viability of keratinocytes and gingival fibroblasts was influenced by higher concentrations of test compound (10 and 25 �g/mL).
Dexamethasone-Chemical Structure and Mechanisms of Action in Prophylaxis of Postoperative Side Effects
Authors: Ciobotaru Oana Roxana , Lupu Mary-Nicoleta , Rebegea Laura , Ciobotaru Octavian Catalin , Duca Oana Monica , Tatu Alin Laurentiu , Voinescu Carina Doina , Stoleriu Gabriela , Earar Kamel , Miulescu Magdalena
Published: January 2020

Dexamethasone is a synthetic glucocorticoid used for its anti-inflammatory and analgesic effect. In addition to these therapeutic indications, it is also recommended for nausea and vomiting treatment which may occur during the postoperative period, with impact on postoperative evolution, regarding the evolution of wound healing and length of stay (LOS), with a reflection on the costs of hospital admission. Therefore, their prevention is very important for both patients� comfort and a good recovery.
Drug Use, a Valid Indicator of Effective Implementation of Medical Protocols
Authors: Tantu Monica Marilena , Man George Mihail , Rogozea Liliana , Paunescu Alina , Plesa Cristina Florentina , Nemes Roxana Maria , Nicolae Camelia , Bisoc Alina
Published: January 2020

The effectiveness of pharmacological therapies is supported and guaranteed by medical protocols, which are the result of long-lasting experiments and scientific research, of course adapted to the level of competence and functional capacity of the healthcare provider. Besides pharmacological effectiveness, the therapeutic regimens should be evaluated from the point of view of economic efficiency, by assessing the financial impact of drug consumption, in correlation with other indicators specific to medical management. A retrospective comparative study of drug used in a surgical section with a capacity of 25 beds, from a county hospital is described. Study objective was to identify the relationship of influence and determination between costs with drugs and other economic and financial indicators and the use of services; objectively evaluate the effectiveness of the protocols used to limit the development of antibiotic resistance, avoiding polypharmacy and improving costs related to drug use, but especially to determine the existence of deviations from these and generating causes. The implementation of medical protocols has led to a decrease in drug costs. Tracking drug use is an effective tool to increase the quality of medical services by avoiding polypharmacy, therapeutic errors and preventing the development of antibiotic resistance. All these aspects are supported by the implementation of medical protocols and, thus, drug use can be appreciated as a valid indicator of their effectiveness and efficiency.
Criteria for Cesarean Section-an Imperative and Emergent Necessity in Romanian Obstetrics
Authors: Dimitriu Mihai , Socea Bogdan , Ples Liana , Gheorghiu Diana-Claudia , Gheorghiu Nicolae , Neacsu Adrian , Cirstoveanu Catalin-Gabriel , Bacalbasa Nicolae , Furau Cristian George , Furau Gheorghe Oto , Banacu Mihail , Ionescu Cringu Antoniu
Published: January 2020

The cesarean section rate in Romania is among the top three in Europe and that it is among the top ranked in the world. Robson classification is a particularly useful tool for all factors involved in obstetrics. In our study, 840 cesarean births from 2018 were classified according to Robson Classification. Thus, the patients analyzed in the present study have in common an almost obvious trait: the indication for caesarean is, in mostly analyzed cases, not very clear. In fact, much of the cesareans studied are nothing but cesarean performed at the request of the patient. We believe that the urgent implementation of Robson Classification in maternity hospitals in Romania is not only necessary, but also extremely urgent, being a practical tool in determining the causes of certain obstetrical practices and customs.
Melatonin and Hyaluronic Acid in Periodontal Disease
Authors: Cristache Corina Marilena , Totu Eugenia Eftimie , Cristache Gheorghe , Nechifor Aurelia Cristina , Pintilie Ingrid Ioana
Published: January 2020

The aim of the present paper was to highlight the individual effects of melatonin (MEL) and hyaluronic acid (HA) on periodontal structures and repair mechanism and to investigate a possible synergic effect and if each component of the proposed mixture (MEL-HA) would maintain their specific characteristics, when using booth active principles, for a topical application. A comprehensive review of the recent literature focusing on the role of MEL and HA in periodontal therapy, as well as on the use of both active compounds and possible synergic effect, have been conducted. An experimental investigation, using the FT-IR analysis, both the individual spectra of each component and the complex matrix obtained was performed. The experimental data obtained from our study proved that no structural changes occurred at the level of the functional groups of the components. Therefore, it is expected that the obtained formulation to be highly efficient for the treatment of periodontal disease, as it would combine the specific local action of MEL and HA.
Experimental Study and Kinetic Modeling of Laminar Flame Propagation in Premixed Stoichiometric n-butane-air Mixture
Authors: Giurcan Venera , Mitu Maria , Razus Domnina , Oancea Dumitru
Published: January 2020

The laminar burning velocities and propagation speeds of stoichiometric n-butane-air mixture were obtained for outwardly propagating spherical flames by measurements of pressure rise during the early stage of propagation in a spherical vessel. The experiments were carried out at various initial pressures within 0.3 and 1.2 bar, and various initial temperatures within 298 and 423 K. The experimental laminar burning velocities were compared with those provided by the detailed kinetic modelling based on Warnatz mechanism for combustion of C1-C4 hydrocarbons, using INSFLA package. The baric and thermal coefficients of laminar burning velocities, calculated from their dependence on initial temperature and pressure, were compared with coefficients characteristic for other fuel-air mixtures. The overall activation parameters (reaction order and activation energy) are reported and discussed in comparison with similar data characteristic for alkane-air flames.
The Study of Biochemistry on Myorelaxation of Manducatory Muscles by Influence of Botulinic Toxine in the Context of Oral Rehabilitation in SDSS Patients
Authors: Checherita Laura Elisabeta , Stamatin Ovidiu , Constantinescu Aurora , Carausu Elena Mihaela , Bulancea Bogdan Petru , Lupu Iulian Costin , Manuc Daniela
Published: January 2020

Hypertonias, observed at stomatognatique level, pathologic expressions of striated musculature may have the opportunity of a large palette of therapeutical ways, so clasics as drugs therapy, and so well the modern therapy injection with botulinic toxin, type A Dysport. The choice upon the type of myorelaxation treatment proper to each case depends upon the severity of manifestations at muscular level, frequently a mixed therapy being the option of choice, based on the superposition of different treatment means. The use of botulinic toxin in the treatment of stomatognatic system dysfunctions is without the morphological impact quickly installed therapeutic effect and it has only short term effects.
Carboxyhemoglobin Detection in the Periorificial Tissues as an Accurate Method for Identifying the Gunshot Entrance Wound
Authors: Muresan Camelia-Oana , Zavoi Roxana , Ciocan Veronica , Dumache Raluca , Parvanescu Ramona , Enache Alexandra
Published: January 2020

One of the main objectives of the forensic expertise in gunshot injuries is establishing the direction of the shooting. The first step of the process is represented by studying the macroscopic differences in the morphology of the entrance and exit wounds, which in most cases suffice for the differential diagnosis between entrance and exit wound. In some cases, making the difference by using morphology alone is not possible, because the two wounds may present common or peculiar features. In these cases, analytical investigations can help in solving this important aspect of the case investigation. The detection of carboxyhemoglobin (COHb) in the perilesional tissues is one of the differentiation criteria between entry and exit wound. In some cases of short range shooting included in our study group, we determined the COHb concentration in blood sampled from the entrance wound. COHb values ranged between 10% and 60%. Given the known chemical stability of COHb, its determination can also prove useful in the examination of putrefied bodies, where the morphology of the gunshot wounds is more or less altered, depending on the stage of putrefaction.
Biochemical, Pharmacological, and Therapeutic Effects of Triple Antihypertensive Therapy with Amlodipine, Valsartan and Hydrochlorothiazide in Elderly Hypertensive Patients with Calcium Phosphate Nephrolithiasis
Authors: Cipu Dan Simion , Cipu Daniela , Berceanu Vaduva Delia , Berceanu Vaduva Marcel , Dumitrascu Victor , Radulescu Matilda , Velimirovici Dana
Published: January 2020

Antihypertensives are widely prescribed in the geriatric population and could influence kidney stone risk but many aspects are still unknown. Thiazides are used to control lithogenic factors and recurrences in patients with calcium lithiasis. The aim of our study was to evaluate the relationship between essential arterial hypertension and stone disease, by studying the pharmaco-therapeutic effects of a fixed-dose combination of amlodipine + valsartan + hydrochlorothiazide (Aml + Val + HCTZ) 10/320/25 mg, on the urinary stone risk in a study group of hypertensive geriatric patients. A longitudinal, randomized, three years follow-up clinical and experimental study was conducted during June 1, 2014 - July 31, 2017. A number of 60 eligible geriatric patients, treated only with a fixed-dose combination of Aml + Val + HCTZ 10/320/25 mg, as a single-tablet, were enrolled in the study. All the patients were stone formers, with more than three episodes of crystalluria in the last two years. The patient�s age ranged between 55 and 65 years. Exclusion criteria: patients with heart failure, kidney chronic diseases, use of drugs known to affect renal function, patients with multi-morbidities. All patients had similar blood pressure values, and tension was well controlled throughout the whole study period. In the elderly patients, the treatment with 25 mg/day of hydrochlorothiazide (from the combination of Aml + Val + HCTZ 10/320/25 mg) has a beneficial and prolonged efficacy in treatment of recurrences in patients with calcium oxalate and phosphate lithiasis Our study reveals that in the elderly patients with hypertension and nephrolithiasis as a comorbidity, thiazides - 25 mg/day of hydrochlorothiazide (from the combination of Aml + Val + HCTZ 10/320/25 mg) has a beneficial effect in order to control lithogenic factors and recurrences in patients with calcium phosphate lithiasis.
Mathematical Model for Reducing the Concentration of a Chemical Substance Applicable in the Procedures of Plasmatic Treatment
Authors: Gindac Ciprian Mihai , Bedreag Ovidiu Horea , Nussbaum Laura Alexandra , Micu Serbu Iulia Bianca , Folescu Roxana , Grigoras Mirela , Hogea Lavinia Maria , Simu Mihaela Adriana , Lupu Viorel , Boanca Mihaela , Sandesc Dorel
Published: January 2020

The objective was to study the correlation between the mathematical form of a chemical that we want to lower its initial concentration by the regressive method and the purging of the body�s toxic present chemicals that need to be eliminated. We developed a chemical model, by which, to a given volume, with a certain (X - concentration %) dissolved substance in a container, the initial solvent, without solvit, is added (concentration 0%) with an equal rhythm to the one that is lost from the used container. The solution that will be lost will contain less and less concentrations of solvit, compared to the initial value X%. At the same time, the concentration of our chemical model will decrease. We applied a regressive mathematical formula to this model in order to calculate the concentration in the container in each moment. At the same time, we conducted treatment sessions in patients in which certain substances need to be eliminated, a procedure that complies with the described chemical model. We have demonstrated that at the same volume of 0% solvit wash, the substance purging with X% concentration is more effective, if the procedure starts with an initial loss of concentrated substance, with ulterior volume replacement. Laboratory data confirms the mathematical model in patients who started the procedure with plasma loss. The developed chemical model demonstrates that the initial loss of substance, hastens the decrease of the initial concentration, especially as the loss is higher at the beginning of the procedure if we use the same replacement volume without the substance in the initial solution. This model can be applied in plasma treatment methods in order to study the patient�s safety and the amount of plasma the patient can lose at the beginning.
The Influence of Nitric Oxid Donors Nebivolol and S-Nitrosoglutathion of the Oxidatives Stress and Liver Function in Rats
Authors: Buca Beatrice Rozalina , Mititelu-Tartau Liliana , Filip Cristiana , Filip Nina , Rezus Ciprian , Iancu Cristina , Rezus Elena , Pinzariu Alin Constantin , Pasca Sorin Aurelian , Lupusoru Catalina Elena , Lupusoru Raoul Vasile
Published: January 2020

We aimed to investigate the influence of two nitric oxide donors on the oxidative stress and the liver function in rats with experimental-induced acute paw inflammation.The experiment was carried out on white male Wistar rats (200-250 g), randomly assigned into 4 groups of 5 animals each, which received the substances intraperitoneal, as follows: group 1 (Control) saline solution 0.1 ml/100 g body weight; group 2 (IND) indomethacin 150 mg/kg body weight (kbw); groups 3 (NEB) and 4 (GSNO) nebivolol 1 mg/kbw, respectively S-nitroso-glutathione 1 mg/kbw. Carrageenan-induced rat�s paw edema test was used for the generation of acute inflammation. The activity of liver enzymes and of some antioxidant parameters was evaluated before the carrageenan injection, after 24 hours and 3 days. The experimental protocol was approved by the University�s Ethic Committee on Research and Ethical Issues.The administration of indomethacin, nebivolol and S-nitroso-glutathione appears to decrease the oxidative stress after 24 h in rats with experimental-induced acute paw inflammation. The nitric oxide donors nebivolol and S-nitroso-glutathione produced moderate functional and structural liver disturbances in rats with acute inflammation.
Inflamatory Chemistry and Organic Surgery in the Maxilar Compression
Authors: Mihai Constantin , Budacu Cristian Constantin , Danila Vlad , Palade Dragos Octavian , Debita Mihaela , Dinu Ciprian , Ciofu Mihai Liviu , Balan Mihail
Published: January 2020

The morphology and physiology of odonto-periodontal units, muscles, temporomandibular joints, maxillary bones, ligaments are in a constant balance, even if all these components are subject to continuous transformation. Affecting a systemic element will attract imbalances to other levels, and the therapeutic solution will require knowledge and understanding of the ensemble. A complete dental exam must allow identification of all factors responsible or likely to cause imbalance in the stomatognat system. The maxillary compression is an abnormality characterized by a transversal developmental deficiency in the upper jaw and / or the mandibular, showing morpho-functional changes that denote a complex disruption in the development of the dento-maxillary apparatus. The common modification of all the fractured cases is the insufficient development in a transversal sense, dental arcades (mono - or bimaxilar), along with facial and maxillary bone changes, disturbances of inter - maxillary or occlusion blocking, functional deficits and disturbances. The strictly mandibular compression situation is very rare and addresses cases by affecting growth at the condylian level. The study includes 27 cases with jaw compression and benefited from orthognat surgery in the Maxillofacial Surgery Clinic between 2015 - 2018. If untreated, the abnormality determines the appearance of many cavities especially in the front teeth, difficulty in performing dental hygiene will lead to chronic marginal periodontitis, the occurrence of abnormal contact between teeth with joint pain, decreased chewing field. The jaw compression is revealed by multiple facial and oral signs, as well as by functional changes. Orthognatic surgery is the only effective treatment for many patients in jaw compression.