bluuebunny/crossref_metadata_2025 huggingface dataset:
Using model forests as a form of balanced forestry in Ukraine
Authors: Cherchyk Larysa , Korchynska Liubov , Babenko Vitalina
Published: March 2020

The relevance of the research topic is prompted by the need to improve the practical instruments of forest management and make them in line with the principles of sustainable development. The research is aimed at facilitating the implementation of environmental, social and economic functions of forest ecosystems in a long-term perspective. The study made use of the following methods: systemic structural analysis, clustering and comparative analysis to identify groups of administrative areas that correspond to certain strategic areas of sustainable forestry. The research is based on cybernetic modeling which helps determining the strategic zones of sustainable forestry. The stages of creating model forests were defined alongside formulating economic, organizational, social and environmental aspects of forest management. The methodology envisages grouping of administrative districts on the basis of a number of factors, including the percentage of forest land, social and economic indicators prompted. The methodology was implemented when analysing official data from several administrative districts in the Zhytomyr region. Several scenarios of sustainable forestry were detailed for each group of administrative districts. Three strategic options were pursued: 1) preserving the viability of forest ecosystems in Ukraine, 2) contributing to the welfare of Ukrainians, 3) ensuring economic development of the forestry sector. It follows from the research that the model forest is a powerful form of cost-effective business interaction in the process of sustainable development that shall bring into action the conservation of nature, provision of comfortable living conditions for territorial communities as well as the most capital-productive utilization of forest resources.
Environmental factors related to community-level functional traits in limestone hill forests along an altitudinal gradient: a case study in northern Thailand
Authors: Asanok Lamthai , Kamyo Torlarp , Marod Dokrak
Published: March 2020

This study investigated the environmental factors affecting functional traits, which have been shown to be important for species assembly in diverse forest stands on limestone hills in northern Thailand. We established 54 plots of 400 m2 in three forest sites (lower, middle, and upper) established along an altitudinal gradient on a limestone hill. The functional traits were assessed and then linked to environmental factors governing forest composition. Results indicated that elevation, rocky outcroppings, and sunlight were important factors affecting functional trait diversity at the study site. Areas with high values of these three factors exhibited increased community-level leaf size, specific leaf area, and leaf thickness, all of which are associated with light-demanding species. However, in areas with low values of these three factors, we observed increased community-level wood density and maximum plant height, which are characteristic of shade-tolerant species. Elevation also positively affected functional dispersion and functional richness values, indicating a wide functional trait space in higher elevation areas, but lower areas exhibited a narrower functional trait space. We suggest that combining a trait-based approach with environmental factors can reveal patterns of species composition in limestone forests.
There’s more to alternations than the main diagonal of a 2×2 confusion matrix: Improvements of MuPDAR and other classificatory alternation studies
Authors: Gries Stefan Th. , Barbara Santa , Liebig Justus , Deshors Sandra C.
Published: March 2020

Corpus-based studies of learner language and (especially) English varieties have become more quantitative in nature and increasingly use regression-based methods and classifiers such as classification trees, random forests, etc. One recent development more widely used is the MuPDAR (Multifactorial Prediction and Deviation Analysis using Regressions) approach of Gries and Deshors (2014) and Gries and Adelman (2014). This approach attempts to improve on traditional regression- or tree-based approaches by, firstly, training a model on the reference speakers (often native speakers (NS) in learner corpus studies or British English speakers in variety studies), then, secondly, using this model to predict what such a reference speaker would produce in the situation the target speaker is in (often non-native speakers (NNS) or indigenized-variety speakers). Crucially, the third step then consists of determining whether the target speakers made a canonical choice or not and explore that variability with a second regression model or classifier.

Both regression-based modeling in general and MuPDAR in particular have led to many interesting results, but we want to propose two changes in perspective on the results they produce. First, we want to focus attention on the middle ground of the prediction space, i.e. the predictions of a regression/classifier that, essentially, are made non-confidently and translate into a statement such as ‘in this context, both/all alternants would be fine’. Second, we want to make a plug for a greater attention to misclassifications/-predictions and propose a method to identify those as well as discuss what we can learn from studying them. We exemplify our two suggestions based on a brief case study, namely the dative alternation in native and learner corpus data.
Meat quality characteristics of high dairy genetic-merit Holstein, standard dairy genetic-merit Friesian and Charolais × Holstein-Friesian steers
Authors: McGee M. , Keane M.G. , Neilan R. , Caffrey P.J. , Moloney A.P.
Published: March 2020

The increased use of Holstein genetic material in the Irish dairy herd has consequences for beef production. In all, 42 spring-born steers [14 Holsteins (HO), 14 Friesian (FR) and 14 Charolais × Holstein-Friesian (CH)] were reared to slaughter at between 26 and 37 mo of age. Carcass weight was higher and the lipid concentration of m. longissimus thoracis et lumborum was lower (P < 0.05) for CH than the dairy breeds. Overall acceptability tended to be lower (P = 0.055) while tenderness, texture and chewiness were lower (P < 0.05) for CH compared with the dairy breeds. The proportion of C16:1 in the total lipid tended to be lower (P = 0.055) for CH than the dairy breeds. Replacing male offspring of traditional “Irish” Friesian bulls with offspring from a genetically superior (from a dairy perspective) strain of Holstein bull had no commercially important impact on beef nutritional or eating quality.
Effects of Radiation and Eckert Number on MHD Flow with Heat Transfer Rate Near a Stagnation Point Over a Non-Linear Vertical Stretching Sheet
Authors: Fenuga O.J. , Hassan A.R. , Olanrewaju P.O.
Published: March 2020

This work investigates the effects of radiation and Eckert number on an MHD flow with heat transfer rate near a stagnation-point region over a nonlinear vertical stretching sheet. Using a similarity transformation, the governing equations are transformed into a system of ordinary differential equations which are solved numerically using the sixth order Runge-Kutta method with shooting technique. Tabular and graphical results are provided to examine the physical nature of the problem. Heat transfer rate at the surface decreases with radiation, Eckert number and as radiation increases, the flow temperature also increases for velocity ratio parameters ɛ <1 and ɛ >1.
The Complex Ginzburg Landau Model for an Oscillatory Convection in a Rotating Fluid Layer
Authors: Manjula S.H. , Kiran P. , Reddy P. Raj , Bhadauria B.S.
Published: March 2020

A weakly nonlinear thermal instability is investigated under rotation speed modulation. Using the perturbation analysis, a nonlinear physical model is simplified to determine the convective amplitude for oscillatory mode. A non-autonomous complex Ginzburg-Landau equation for the finite amplitude of convection is derived based on a small perturbed parameter. The effect of rotation is found either to stabilize or destabilize the system. The Nusselt number is obtained numerically to present the results of heat transfer. It is found that modulation has a significant effect on heat transport for lower values of ωf while no effect for higher values. It is also found that modulation can be used alternately to control the heat transfer in the system. Further, oscillatory mode enhances heat transfer rather than stationary mode.
An Intial-Value Technique for Self-Adjoint Singularly Perturbed Two-Point Boundary Value Problems
Authors: Padmaja P. , Aparna P. , Gorla R.S.R.
Published: March 2020

In this paper, we present an initial value technique for solving self-adjoint singularly perturbed linear boundary value problems. The original problem is reduced to its normal form and the reduced problem is converted to first order initial value problems. This replacement is significant from the computational point of view. The classical fourth order Runge-Kutta method is used to solve these initial value problems. This approach to solve singularly perturbed boundary-value problems is numerically very appealing. To demonstrate the applicability of this method, we have applied it on several linear examples with left-end boundary layer and right-end layer. From the numerical results, the method seems accurate and solutions to problems with extremely thin boundary layers are obtained.
The Effect of Magnetic Field Dependent Viscosity on Ferromagnetic Convection in a Rotating Sparsely Distributed Porous Medium - Revisited
Authors: Prakash J. , Kumar P. , Manan S. , Sharma K.R.
Published: March 2020

The effect of magnetic field dependent (MFD) viscosity on the thermal convection in a ferrofluid layer saturating a sparsely distributed porous medium has been investigated by using the Darcy-Brinkman model in the simultaneous presence of a uniform vertical magnetic field and a uniform vertical rotation. A correction is applied to the study of Vaidyanathan et al. [11] which is very important in order to predict the correct behavior of MFD viscosity. A linear stability analysis has been carried out for stationary modes and oscillatory modes separately. The critical wave number and critical Rayleigh number for the onset of instability, for the case of free boundaries, are determined numerically for sufficiently large values of the magnetic parameter M1. Numerical results are obtained and are illustrated graphically. It is shown that magnetic field dependent viscosity has a destabilizing effect on the system for the case of stationary mode and a stabilizing effect for the case of oscillatory mode, whereas magnetization has a destabilizing effect.
MHD Free Convection-Radiation Interaction in a Porous Medium - Part I: Numerical Investigation
Authors: Vasu B. , Gorla R.S.R. , Murthy P.V.S.N. , Prasad V.R. , Bég O.Anwar , Siddiqa S.
Published: March 2020

A numerical investigation of two dimensional steady magnetohydrodynamics heat and mass transfer by laminar free convection from a radiative horizontal circular cylinder in a non-Darcy porous medium is presented by taking into account the Soret/Dufour effects. The boundary layer conservation equations, which are parabolic in nature, are normalized into non-similar form and then solved numerically with the well-tested, efficient, implicit, stable Keller–Box finite-difference scheme. We use simple central difference derivatives and averages at the mid points of net rectangles to get finite difference equations with a second order truncation error. We have conducted a grid sensitivity and time calculation of the solution execution. Numerical results are obtained for the velocity, temperature and concentration distributions, as well as the local skin friction, Nusselt number and Sherwood number for several values of the parameters. The dependency of the thermophysical properties has been discussed on the parameters and shown graphically. The Darcy number accelerates the flow due to a corresponding rise in permeability of the regime and concomitant decrease in Darcian impedance. A comparative study between the previously published and present results in a limiting sense is found in an excellent agreement.
Mixed Convection on MHD Flow with Thermal Radiation, Chemical Reaction and Viscous Dissipation Embedded in a Porous Medium
Authors: Zigta B.
Published: March 2020

In this paper, a theoretical analysis has been made to study the effect of mixed convection MHD oscillatory Couette flow in a vertical parallel channel walls embedded in a porous medium in the presence of thermal radiation, chemical reaction and viscous dissipation. The channel walls are subjected to a constant suction velocity and free stream velocity is oscillating with time. The channel walls are embedded vertically in a porous medium. A magnetic field of uniform strength is applied normal to the vertical channel walls. The nonlinear and coupled partial differential equations are solved using multi parameter perturbation techniques. The effects of physical parameters, viz., the radiation absorption parameter, Prandtl number, Eckert number, dynamic viscosity, kinematic viscosity, permeability of porous medium, suction velocity, Schmidt number and chemical reaction parameter on flow variables viz., temperature, concentration and velocity profile have been studied. MATLAB code is used to analyze theoretical facts. The important results show that an increment in the radiation absorption parameter and permeability of porous medium results in an increment of the temperature profile. Moreover, an increment in the Prandtl number, Eckert number and dynamic viscosity results in a decrement of the temperature profile. An increment in suction velocity results in a decrement of the velocity profile. An increment in the Schmidt number, chemical reaction parameter and kinematic viscosity results in a decrement of the concentration profile.
Neutrophil to Lymphocyte Ratio and Thrombocyte to Lymphocyte Ratio, New Biochemical Parameters in Acute Pancreatitis
Authors: Crișu Georgiana Cătălina , Atanasiu Valeriu , Marin Flavius Ștefan , Balaban Vasile Daniel , Găman Laura , Stoian Irina , Jinga Mariana
Published: March 2020

Background. Acute pancreatitis represents an inflammatory disease with different grades of severity, ranging from mild to severe presentation. In current practice there are a lot of biomarkers used in diagnosis and prognosis of pancreatitis.

The aim of this study was to evaluate de differences between a group with acute pancreatitis and a group of healthy people regarding the neutrophil to lymphocyte ratio (NLR), thrombocyte to lymphocyte ratio (TLR), as these two could help in the evaluation of prognosis and severity of acute pancreatitis.

Method. The study had two groups: group A, included 100 patients with acute pancreatitis and group B - 30 healthy people.

Results. In the group A there were 65% male and 35 % female with a mean age of 58.07±15.10 years, in the group B there were 50% male and 50% female with a mean age of 48.06±15.47 years. The majority of the people included in both groups were from the urban provenience. We obtained an important difference between group A and group B regarding the neutrophil to lymphocyte ratio and thrombocyte to lymphocyte ratio with an important statistical significance (p<0.001).

Conclusion. Neutrophil to lymphocyte ratio and thrombocyte to lymphocyte ratio could be promising biochemical parameters in diagnosis and prognosis of acute pancreatitis.
D-Dimers, Potential Predictive Factor of Survival in Acute Ischemic Stroke in Patient with Diabetes
Authors: Pop Nicolae Ovidiu , Mohan Aurel George , Zaha Dana Carmen , Babeș Petru Aurel
Published: March 2020

Determination of plasma level of D-dimers in patient with acute ischemic stroke can be used as a potential predictor of survival and correlated with the degree of disability of the patient. This study shows a correlation between the serum level of D-dimers in the diabetic patients with acute ischemic stroke, which may result that the level of D-dimers could be a good predictor of survival in acute ischemic stroke but not a predictor of disability and prognosis.
Risk Factors for Stroke in Patients with Chronic Kidney Disease
Authors: Timofte Delia , Dragoș Dorin , Măndiţă Adina , Balcangiu-Stroescu Andra-Elena , Tănăsescu Maria-Daniela , Bălan Daniela Gabriela , Răducu Laura , Avino Adelaida , Ionescu Dorin
Published: March 2020

Stroke is a public health problem especially in developed countries, being an important cause of death and disability. The prevalence of chronic kidney disease (CKD) in the general population varies from country to country. The percentage of afflicted patients is on the rise, mainly due to the high incidence of diabetes mellitus (DM) complicated with diabetic nephropathy (DN) and of the kidney vascular diseases (hypertensive nephroangiosclerosis and ischemic nephropathy). In patients with CKD, strokes are relatively frequent, especially hemorrhagic ones, due to a host of risk factors, both modifiable and unmodifiable.

Cardiovascular complications (which may be prevented by risk factors control) are the main culprit for the relatively high mortality rate of CKD patients, frequently leading to their death before the initiation of renal replacement treatment (dialysis, kidney transplant).
Boardroom Empires?: A Study of Ownership Influence in the Swedish Press
Authors: Ohlsson Jonas
Published: March 2020

The question of how ownership impacts on the performance of the press is a perennial one. Despite the extensive attention devoted to the perceived consequences of ownership, information about what newspaper owners actually do remains limited. This article discusses an alternative path for research on media ownership. It involves the board of directors, the main agency that is expected to exercise ownership power. The article presents a study that focuses specifically on the decision-making in and around the boardrooms of three Swedish newspaper firms between 1955 and 2005. Building on analyses of board meeting minutes and interviews with board members, the study shows that the impact of ownership is established, and develops, in an intricate web of interacting forces, internal and external to the firm. It thus underlines the need for both a multi-theoretical foundation and a multi-method design in research on ownership influence in the media.
News Behind the Wall: An Analysis of the Relationship Between the Implementation of a Paywall and News Values
Authors: Kvalheim Nina
Published: March 2020

This article explores the relationship between the implementation of a paywall and the editorial content profile in a local newspaper. The premise of the article is that the content published behind the wall is the content the newspaper values the most, and the article aims to contribute to an understanding of the interplay between strategic and economic decisions regarding news production and the editorial content. The Norwegian newspaper Fædrelandsvennen and its online initiative fevennen.no serve as cases in the study, and the article asks two questions: What are the most prominent news values behind the paywall, and how do they relate to commercial strategies regarding the introduction of the wall?
Changing Magazine Journalism: Key Trends in Norwegian Women’s Magazines
Authors: Ytre-Arne Brita
Published: March 2020

This article analyses developments in Norwegian magazine journalism in the last decade, focusing on the broad and varied spectrum of magazines targeting women. The analysis is based on multiple methods and data sources, aiming to connect the production and reception of magazine journalism to the texts of magazines. This article will identify and discuss five key trends: fragmentation, digitalization, Nordic inspiration, redefinition of the political and beautification. The trends are discussed in light of public sphere theory and selected orientations in Nordic journalism research.
A Small Exclusive Circle: An Institutional Approach to Business News
Authors: Lindén Carl-Gustav
Published: March 2020

This article features a comparative study of the making of business news based upon interviews (2005 to 2010) with senior business journalists in Finland and Sweden as well as communication managers at two global telecom companies, Nokia and Ericsson. The article shows the complex and fluid dynamics of social construction. There are spans when corporate power over editorial practices is strong and other periods when business reporters and their supervisors effectively exert their control over these news processes and the construction of meaning. Communicative outcomes are not determined or predictable; rather, they are influenced by a socially grounded understanding of what is “appropriate”. This case study shows that formal rules can be of limited value when assessing social processes.
Strong and Weak Forms of Mediatization Theory: A Critical Review
Authors: Ampuja Marko , Koivisto Juha , Väliverronen Esa
Published: March 2020

During recent years, the concept of mediatization has made a strong impact on media and communication studies, and its advocates have attempted to turn it into a refined and central theoretical framework for media research. The present article distinguishes two forms of mediatization theory: a strong form based on the assumption that a ‘media logic’ increasingly determines the actions of different social institutions and groups, and a weak form that questions such a logic, though the latter form emphasizes the key role of the media in social change and singles out mediatization as a central ‘meta-process’ today. Exponents of the weak form have convincingly criticized the notion of media logic. However, the weaker version of mediatization is itself problematic, as its advocates have failed to produce a clear explanatory framework around the concept. We argue that, although the analytical status of mediatization is unclear, fascination with the concept will, in all probability, continue in the years to come, due to the promises of heightened disciplinary coherence and status that this notion has conveyed for media and communication studies.
Norwegian Media and the Cold War 1945–1991
Authors: Bastiansen Henrik G.
Published: March 2020

The theme of this article is how the Cold War influenced the media – but also how the media influenced the Cold War. In order to study this, the article connects Norwegian media to the broader international Cold War history between 1945 and 1991. The aim is to show the relevance of the Cold War for media development and of the media for research on the Cold War. The goal is to construct a tentative fundament for further research on the role of the media during the Cold War.
A Quest for Communitas: Rethinking Mediated Memory Existentially
Authors: Lagerkvist Amanda
Published: March 2020

Despite the fragmentation of audience behaviour and the pluralization of platforms within the media cultures of the digital age, cultural memory practices retain an important feature: They echo a basic existential quest for communitas. The present article compares two seemingly incomparable regimes of memory of our time: the anniversaries of 9.11 on Swedish television and web communities of commemoration of lost loved ones. It suggests through these contrasting examples that existential themes are pursued in the face of three challenges: the temporality of instantaneity, the all-pervasive networked individualism that makes memory into a matter of elective affinities, and the technological capacities that subject memory to endless revision. The article explores the existential dimension of these memory practices in line with research within the culturalist emphasis on the study of media and religion. This debate recognizes the need for a broader understanding of the mediated qualities of religion and the religious qualities of the media. The article argues that both televisual anniversaries of trauma that invite audiences to an annual return, and our new multiple and fragmented media memories compel us to conceive of our hyper-contingent, late-modern digital age as a quest for meaning, transcendence and cohesion – for what Victor Turner (1969) called existential communitas.
Considering Dispositional Moral Realism
Authors: Singh Prabhpal
Published: March 2020

My aim in this paper is to consider a series of arguments against Dispositional Moral Realism and argue that these objections are unsuccessful. I will consider arguments that try to either establish a dis-analogy between moral properties and secondary qualities or try to show that a dispositional account of moral properties fails to account for what a defensible species of moral realism must account for. I also consider criticisms from Simon Blackburn (1993), who argues that there could not be a corresponding perceptual faculty for moral properties, and David Enoch (2011), who argues that Dispositional Moral Realism does not most plausibly explain the difference between moral disagreements and disagreements of mere preference. Finally, I examine a novel criticism concerning the relationship between the diverse variety of moral properties and the range of our normative affective attitudes, arguing that the view has no problem accounting for this diversity.
Interview with Invited Speaker Michela Massimi, Philosophy as a Way of Life
Authors: West Peter , Massimi Michela
Published: March 2020

Michela Massimi is a Professor of Philosophy of Science at the University of Edinburgh and was the keynote speaker for Philosophy as a Way of Life. She is currently the PI for an ERC-funded project ʽPerspectival Realism. Science, Knowledge, and Truth from a Human Vantage Point.ʼ Massimi has extensive experience working on interdisciplinary projects and has frequently engaged in public philosophy. In this interview, she discusses the future of research in the UK post-Brexit, the challenges and rewards of interdisciplinary research, shares some thoughts on the history of philosophy and science and our relationship with it, and emphasises the importance of bringing philosophy into the public sphere. She also offers advice for early career researchers and graduate students in philosophy.
Air Mission Commander. Command and Control
Authors: Iordache Mihai
Published: March 2020

In the fight management, the military commander, who is assimilated to a leader has, most of the time, the most important role. Today, in addition to the traditional missions to defend the sovereignty, independence and territorial integrity of the state, the military forces also carry out missions according to the obligations assumed by NATO or EU membership: peacekeeping, peace enforcement, humanitarianism, post conflict reconstruction, terrorism, security and collective defense. These missions require the adoption of modern forms and methods of leadership, especially as they are largely executed outside the national territory, which provokes new cultural expectations and demands, involves ethical issues and legal advice whose value is not fully known.
Comparative Study on the Implementation of Combat Sports – Martial Arts – in the Physical Training of Military Students
Authors: Martinescu-Bădălan Fabiana
Published: March 2020

In the current context, martial arts continue to evolve and constantly develop, capturing the attention and the interest of the population of the entire world, the branch of these being diversified, offering individuals the possibility to be practiced, even by those with physical or mental disabilities. Nowadays, the large categories of armed forces of the world use martial arts as part of general physical training, with the purpose of self-defence against the enemy, discipline, improved physical and mental condition, improvement of the ability of the military to adapt to harsh conditions, as well as fighting without using weapons.
Physical and Technical Training in Firefighter’s Ladder Competition
Authors: Sopa Ioan Sabin , Pomohaci Marcel
Published: March 2020

Nowadays, firefighting is becoming more and more demanding with a lot of natural disasters and disasters caused by men, the firefighters must be very well prepared for rapid and efficient intervention, physical training has become one of the key skills that an emergency intervention employee must have. Our research paper is focused on the athletic preparation of firefighting in the ladder climbing competition. The research experimental group was formed by 10 males with age of 30 ± 3.5 years old with experience in this kind of competitions between 2 and 7 years. We highlighted the intervention plan and training and their effects on the results of our athletes and also analyze the efficiency of developing motor qualities such as strength, speed, resistance, and coordination. The results show relatively good improvements in the performance time at all 10 athletes and also in the motor qualities level. Conclusions of our research present the efficiency of training athletic skills and also the motor qualities in obtaining better results at the ladder climbing competition.
On Sign Language Toolbox Aid
Authors: Abdulhamid Mohanad , Chesebe Ndiwa
Published: March 2020

The world has been lately witnessing a landmark revolution in technology whereby more research and development is going into producing devices that are able to respond to human emotions, motions and behavior. These days, mobile phones are able to capture photos when the user is smiling or gesturing towards them. By making certain gestures, a user is able to control smart televisions and computers at the comfort of their homes, without the need of extra interface devices. The interaction between man and machines is being improved and made as natural as possible. More so, the application of hand gesture technology is finding use in making communication between people with hearing difficulties and those without, possible. This research presents the techniques that have made this possible. Most of these techniques however are in development stages. This is because of the significant challenges faced in providing this solution. First, there are over 30,000 sign language gestures which is quite a headache when trying to integrate them into a recognition system. Secondly, despite the fact that there are standard ways of making the sign language gestures, people have variations to them. Developers hence have to make allowance for these variations and in effect compromise on the accuracy of the system. This research evaluates the various algorithms developed, and tries to propose an algorithm that strikes the best balance between accuracy and allowance for variations in the sign language gestures.
Hidden Vacancy Rate as a Part of Office Market Dynamics in Selected Polish Cities
Authors: Nowak Krzysztof
Published: March 2020

The hidden vacancy rate reflects the adjustments of the market vacancy rate that may occur in the future, in the event of a change in market conditions. Its occurrence results from the fact that the current level of rented office space reflects the demand based on past levels of rent and past predictions of changes in the tenants’ demand for space during the term of the lease. Thus, the level of total, occupied office space at given moment does not result from demand based on the current market rent. This is the result of the duration of lease agreements concluded for more than one period. The hidden vacancy rate is also related to the costs of searching for office space that meets the specific criteria of tenants, removal costs and office space adaptation costs. The hidden vacancy rate cannot be observed in the market, but can be determined based on available market data.

The article presents the concept of a hidden vacancy rate. Next, the presented theory was used to determine the dynamics of the hidden vacancy rate in a narrow and broad approach in the market of modern office space in Warsaw, Krakow, Wroclaw and Poznan. The obtained results were compared to two mature office space markets in Western Europe. The study shows differences in the formation of the hidden vacancy rate on the market characterized by a relatively large total stock of available office space in relation to markets being at an earlier stage of development.
Comparison of Real Estate Management System in China and Poland
Authors: Gross Marta , Lin Chao
Published: March 2020

Real estate management systems differ all over the world. Differences arise from the different history of regions, different cultures and customs. The paper presents information about the real estate management systems in China and Poland, two extremely different countries. The authors have tried to show the differences and similarities between the countries. The research methods that were used to prepare the paper include a TOWS/SWOT analysis and a comparative analysis.
Real Estate Sector in the Face of Climate Change Adaptation in Major Polish Cities
Authors: Wieteska-Rosiak Beata
Published: March 2020

This paper aims to review subject-matter literature and analyse the development policy documents of major Polish cities addressing the issue of climate change adaptation (urban adaptation plans, Polish abbr. MPA) and concerning the real estate sector; it is also an attempt to draw conclusions and identify potential benefits and challenges that the construction sector is currently facing. The literature focuses on coastal real estate, costs, benefits and barriers in the adaptation of buildings. MPAs point to the significant role of the real estate sector in adapting to climate change. Soft and hard instruments are becoming increasingly important in MPA. These are spatial planning (building restrictions in hazardous areas, use of green roofs in investments), a system of incentives for investors to promote adaptation activities, ecological education, investments in improving the energy efficiency of buildings. Also identified are the benefits to the real estate sector, e.g. the growing importance of occupations on the real estate market, the development of innovations and increased access to cheaper services and technologies. In Polish cities, high-intensity residential areas are characterized by high sensitivity. MPAs will strengthen the resilience of the city’s technical infrastructure and public space, as well as develop blue and green infrastructure, which may translate into the increased resilience of real estate.
Methods of Analyzing Qualitative Variable Correlation on the Real Estate Market
Authors: Dmytrów Krzysztof , Gdakowicz Anna , Putek-Szeląg Ewa
Published: March 2020

Variables occurring in a real estate market are frequently presented on scales other than interval or ratio scales. Most frequently, the scale is an ordinal (for instance – onerous, unfavourable, neutral, favourable), or possibly a nominal one. That is why the use of scales intended for quantitative attributes (such as Pearson linear correlation coefficient) is not possible. The paper presents the results of employing other coefficients (Kendall’s τ

B
and Spearman’s ρ coefficients) in analyzing correlations on the real estate market.

The objective of the article is to present a method of analyzing the correlation of qualitative variables (attributes) and to present the possibility of using the obtained results in the process of real estate appraisal.
Housing Preferences in Various Stages of the Human Life Cycle
Authors: Palicki Sławomir
Published: March 2020

Customer preferences on the real estate market have been a topic of scientific research for decades. Recently, a lot of attention has been given to the issue of housing attitudes and needs of chosen groups of buyers. Among them, a particular increase in interest in real estate meeting the needs of the elderly and young buyers has been observed. However, Polish literature lacks a holistic analysis of consumer preferences through their entire lives.

The article recognizes the phenomenon of the changing preferences of potential real estate buyers depending on their current stage of life. All the age groups for a representative quota sample of Poznan citizens were asked to assess the importance of real estate cost factors. This allowed the housing attitudes of potential participants of the real estate market to be reconstructed in view of the changes in their adult lives. The conclusions drawn from the research might be useful for both academic discourse, and for practical application on the real estate market.
Heat Storage Combined with Biomass CHP under the National Support Policy. A Case Study of Estonia
Authors: Volkova Anna , Latosov Eduard , Siirde Andres
Published: March 2020

In spite of the progressions in heat storage systems for combined heat and power’ (CHP) plants performance, these innovations have not been implemented in CHP-based district heating (DH) systems in some of the countries where DH systems are still being developed. An examination of environmental and economic advantages that can be gained as a result of heat storage installation into the DH system are necessary to effectively popularise heat storage as a DH system-improvement technology. A real large-scale biomass CHP-based DH system is investigated in this case study. Scenarios for two kinds of support policies (feed-in premium for electricity generated by biomass CHP and energy-efficient biomass CHP) were analysed by changing the extent of the heat storage. The goal of this study was to assess the impact of the biomass CHP policy support instruments on the viability of integrating heat storage. Calculations demonstrate that fitting of heat storage combined with biomass CHP is less viable when all power generated by biomass CHP is subsidised.
Communication Processes in a Project Implemented by a Public Institution
Authors: Kot Mateusz
Published: March 2020

The study aims at defining communication relations between a project team, a project manger and a wider project environment within a public insitution. Invidual in-depth interviews were chosen as the research metod. On the basis of the collected material, five main issues relater to the communucation process in te studied project were specified: a hierarchical structure, professional dependence, understantind of one's mutual duties, realtions between members of the project team and communication with the steering committee. On the basis of the findings, a scheme of project management in the studied public institution was identified. Communication and organizational weaknesses have been indicated, which may be eliminated or may not occur if they are spotted eraly on.
Happy Or Not? Roots of Student Satisfaction in Class Sessions
Authors: Metzgar Matthew
Published: March 2020

Businesses and organizations are turning to fast feedback devices that measure consumercan satisfaction. These standalone devices often have four or five different smiley buttons that quickly gauge consumer sentiment. These devices are becoming popular due to the short timecommitment needed to provide feedback.This instructor has piloted the use of a smiley-face survey tool that is used at the end of eachclass session. Initial results suggest the role of the instructor may play a lesser role in student hap-piness for a given class. External factors, such as outside event or incoming GPA, appear to have a larger effect on classsatisfaction. Data from classes and sample email exchanges will be presented. This type of fast feedback system has many potential benefits and low startup costs.
The Housing of Immigrants in Romania
Authors: Burean Toma
Published: March 2020

Few migrants visit and stay in Romania. However, this situation is prone to change with Romania’s imminent joining the Schengen treaty and the critical labor force shortages. It is not a surprise that Romanian institutions are trying to prepare and train for accommodating workers coming from other regions of the world. This paper describes the current housing and status of immigrants in Romania including the perception and the living conditions of immigrants from Romania. Tentatively, I will show that overall living conditions are good but somewhat worse than the locals. Finally, I associate the living conditions to predictors identified in other studies such as income and type of activity performed in the host country. The study is exploratory and intends to reveal information on how immigrants report on their living status in Romania.
MOBILE-ASSISTED LANGUAGE LEARNING IN A UNIVERSITY CONTEXT IN VIETNAM: STUDENTS’ ATTITUDES
Authors: Tra Pham Thu
Published: March 2020

The study concerns the attitudes towards Mobile-assisted language learning (MALL) of the participants in a university. Using the mixed-method research design with survey questionnaire as the main data collection tool, the research gained some significant findings and successfully met the aims of the study. The findings from both qualitative and quantitative data reveal that the participants basically held positive attitudes towards the use of MALL inside classroom and towards MALL in general. It is suggested that MALL be adopted as a new approach in English language teaching and learning. Moreover, some measures should be taken to develop the digital literacy of both instructors and learners.
Investigation of Indoor and Outdoor Air Quality at Elementary Schools in Hanoi, Vietnam
Authors: Anh Le Hoang , Quynh Linh Vu Thi
Published: March 2020

Indoor air quality is having insufficient attention despite its importance for human health, especially for schools because children is one of the most sensitive groups to air pollution. This study focuses on monitoring the air quality inside classrooms at some elementary schools (ELS) of Hanoi with representative parameters including PM2.5, PM10, CO2, NO2, and VOCs. Simultaneously, those parameters in school yards are also monitored to provide data for comparison and evidence of the sources of indoor pollution. The results indicated that the main air quality issue in schools is particulate matters, particularly PM2.5. It also showed that schools locating near traffic roads have concentrations of 2 - 3 times higher than standards. VOCs concentration levels are high indoor and in school yards located near markets and traffic roads. CO2 and NO2 indoor concentrations are below standards in all schools. The ELS-7 has most of indoor and in yards concentrations at the highest values. Two significant factors effecting air quality of schools are traffic and activities of residential areas around them.

Keywords: Indoor air quality, School, Vietnam.
Bioaccumulation of Polycyclic Aromatic Hydrocarbons (PAHs) in Green Mussels (Perna viridis) from Cangio Area, Hochiminh City
Authors: Thi Thanh Thuy Hoang , Luu Pham Thanh , Loan Tu Thi Cam , Dong Nguyen Van , Bao Le Duy , Yen Tran Thi Hoang , Huy Do Xuan
Published: March 2020

The bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in bivalves of the coastal estuary has been investigated since they are favorable seafood. In the present study, the distribution of PAHs was determined in the green mussels (Perna viridis) from Cangio area (Ho Chi Minh City). Global comparison showed a lower PAHs accumulated in the green mussels, which ranged between 2.97 to 15.79 ng/g wet weight (ww). However, the presence of carcinogenic isomer (benzo[a]pyrene) (up to 0.15 ng/g ww) emphasizes a further monitoring program to ensure the food quality and community health.

Keywords:  Polycyclic aromatic hydrocarbons, bioaccumulation, green mussels, Cangio.
Penggunaan Strategi Mind Web untuk Meningkatkan Pemahaman Konsep Matematika Siswa
Authors: Oktari Geci , Putra Aan , Putri Rahmi , Ningsih Febria
Published: March 2020

Tujuan penelitian ini adalah untuk mengetahui perbandingan pemahaman konsep matematika siswa yang diajar dengan strategi Mind Web dibandingkan dengan pemahaman konsep matematika siswa yang diajar dengan pembelajaran konvensional. Jenis penelitian ini adalah penelitian eksperimen. Populasi penelitian ini adalahsiswa kelas VIII SMP Negeri 26 Kerinci. Kelas sampel adalah kelas VIII A dan VIII B sebagai kelas eksperimen dan kelas kontrol. Pengumpulan data yang berupa tes pemahaman konsep matematis berbentuk soal uraian yang telah disesuaikan dengan indikator pemahaman konsep matematis. Data hasil tes akhir dianalisis dengan menggunakan uji-t. Hasil uji t menunjukkan bahwa pemahaman konsep matematika siswa yang diajar dengan menggunkan Mind Web lebih baik daripada pemahaman konsep matematika siswa yang diajar dengan pembelajaran konvensional.

 

The purpose of this study was to determine the comparison of students' mathematical concepts understanding that taught by the Mind Web strategy and students' that taught by conventional learning. This research was experimental research. The population in this research was all of the eighth-grade students OF SMP Negeri 26 Kerinci. The samples were VIII A and VIII B as the experimental group and the control group. The data collected by tests of mathematical concepts understanding in essay form that has been adapted to the indicators of mathematical concepts understanding. The data of the final test were analyzed using the t-test. The result of the t-test shown that students’ mathematical concepts understanding that taught by Mind Web was better than students’ mathematical concepts understanding that taught by conventional learning.
Penalaran Matematis Mahasiswa dengan Kemampuan Berpikir Intuitif Sedang dalam Memecahkan Masalah Analisis Real
Authors: Adamura Fatriya , Susanti Vera Dewi
Published: March 2020

Kemampuan penalaran matematis diperlukan dalam memahami matematika dan dalam menyelesaikan masalah sehari-hari, mahasiswa memerlukan. Kemampuan Indonesia di dunia pendidikan dalam bidang matematika masih sangat rendah. Berdasarkan hal tersebut, penelitian ini bertujuan untuk mengetahui penalaran matematis mahasiswa dengan kemampuan berpikir intuitif sedang dalam memecahkan masalah analisis real. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian deskriptif kualitatif. Sumber data yang digunakan pada penelitian ini adalah mahasiswa. Teknik pengumpulan data melalui tes tulis dan wawancara. Analisis data dalam penelitian ini dilakukan dengan tahapan reduksi data, penyajian data, dan penarikan simpulan. Berdasarkan hasil penelitian diperoleh kesimpulan bahwa mahasiswa dengan kemampuan berpikir intuitif sedang pada pemecahan masalah analisis real memiliki kecenderungan melaksanakan penalaran matematis dengan kurang sempurna. Mahasiswa dengan kemampuan berpikir intuitif sedang tidak mampu melaksanakan penalaran matematis pada tahap pemecahan masalah menyelesaikan masalah sesuai rencana dan melakukan pengecekan kembali.

 

Mathematical reasoning capability is needed in the understanding of mathematics and in the problem solving of daily activity, student need. Indonesian education capability in mathematics is low. Based on that fact, the aim of this research is for knowing student mathematical reasoning with medium intuitive thinking capability in the problem solving of real analysis. This research uses qualitative method with the kind of method is qualitative descriptive. Data resource that is used in this research is student. Data collecting technique is done by using writing test and interview. Data analysis in this research is done by data reduction, data display, and data verification. Based on research result is gotten conclusion that student with medium intuitive thinking capability in the problem solving of real analysis can do mathematical reasoning less completely. Student with medium intuitive thinking capability cannot do mathematical reasoning in every step solving problem based on plan and doing answer checking .