Diana Dumitras

Diana Dumitras
University of Agricultural Sciences and Veterinary Medicine | USAMV Cluj · Department of Economic Sciences

PhD, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Romania; MSc, University of Nevada, Reno, USA

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63
Publications
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191
Citations

Publications

Publications (63)
Article
Full-text available
Crisis periods such as the COVID-19 pandemic may reshape consumers’ behavior and challenge all food chain actors on how to assure and better respond to consumers’ needs and wants. This study aimed to reveal the main concerns of consumers related to food consumption during the COVID-19 pandemic and to identify factors that may influence their behavi...
Article
Full-text available
Globally, as the population and the living standards expanded, so did the use of energy and materials. Renewable energy resources are being used to help address the energy issue and reduce greenhouse gas emissions (GHG). Because lignocellulosic biomass resources are widely available and renewable, various processes are used to convert these resourc...
Article
Full-text available
The COVID-19 pandemic has led to perspective shifts in the approach of English language classrooms in the online higher education context. The current empirical study aims to understand the behaviour of 394 university students enrolled in agricultural, veterinary, and overall life science programmes in one of the main Romanian universities while le...
Article
Full-text available
Food waste represents an important aspect with social, economic, and environmental implications. As previous studies underlined, the COVID-19 pandemic led to changes in the food consumption patterns among consumers. The aim of the study was to investigate the main changes in household food waste management during the COVID-19 pandemic in Romania co...
Article
Full-text available
The large amount of biomass waste generated by vineyard pruning causes many environmental concerns. The production of briquettes represents an alternative to obtaining a value-added product. The transformation of vineyard wastes into briquettes could produce a densified product having high energy potential. The study investigates the production and...
Article
Full-text available
Food consumption behavior during the COVID-19 pandemic has changed worldwide as a consequence of the restrictions imposed by law and/or due to the fear of contamination. Although some similarities are found among countries, there are still many particularities for each nation. The present study focused on Romanian consumers and their consumption be...
Article
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The COVID-19 pandemic affected consumers’ behavior worldwide. This paper aims to analyze consumers’ sustainable food behavior during the COVID-19 pandemic. The research was based on an online survey during May–October 2020 among 859 Romanian consumers. Principal component analysis and cluster analysis were employed to group the consumers based on t...
Article
Full-text available
Considering the huge economic and social disparities between urban and rural areas of Romania, it is important to investigate the local community perception on the perceived impact of the rural development strategies, provided complex research to evaluate the degree of satisfaction and wellbeing of the rural communities from Cluj County, following...
Article
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The trend towards health and environmental protection has led to an increase in the consumption of medicinal and aromatic plant (MAP) products. The market for MAP products is influenced by consumer behaviour and therefore the aim of this study was to identify consumer segments that use MAP products for phytotherapeutic, cosmetic and personal care p...
Article
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Development of tourism affected the socio-cultural environment of many destinations. Previous studies have focused more on analyzing the impact of tourism on all three dimensions of sustainable development (economic, environment and socio-cultural); therefore, the present paper examines tourism development’s impact with regard to the socio-cultural...
Article
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The emergent life cycle assessment (LCA) methodology, techniques and models were punctuated by divergences concerning the system expansion, allocation rules and causation modeling. Moreover, the unification of the economic, social and ecological perspectives in the life cycle sustainability assessment (LCSA) should be addressed by abstract models p...
Article
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Common Agricultural Policy (CAP) proposes environmental policies developed around action-based conservation measures supported by agri-environment schemes (AES). High Nature Value (HNV) farming represents a combination of low-intensity and mosaic practices mostly developed in agricultural marginalized rural areas which sustain rich biodiversity. Be...
Article
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A sound theoretical ground is required for sustainability related concepts reconciliation and operationalization. The current study investigates the opportunities to conceive a homogenous sustainability model derived from theoretical ecology, using as a prototype the “organization” concept from the Chemical Organizations Theory (COT). A sustainabil...
Article
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Vineyards waste has a great importance as biomass, a renewable source of energy. In this paper eight vine shoot varieties were used for the production of pellets by densification of feedstock materials with four ranges of moisture contents (6–8%, 8–10%, 10–12% and 12–15%). A moisture content of 10% gave durability higher than 97.5% and a calorific...
Article
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In this paper, the production of a second-generation bioethanol from lignocellulosic vineyard cutting wastes was investigated in order to define the optimal operating conditions of the autohydrolysis pretreatment, chlorite delignification and simultaneous saccharification and fermentation (SSF). The autohydrolysis of vine-shoot wastes resulted in l...
Conference Paper
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In the context of the fossil fuels depletion, the bioenergy transition target objectives set by policy makers are increasingly challenging. There are massive negative ecological impacts in terms of deforestations, land use, emissions and greenhouse gases footprint, but also undesirable economic impacts. Science is struggling with the efficiency of...
Article
Annually large amounts of vineyard waste are produced from vine pruning. Romania has a vineyard of 183,000 ha and produces 6.0 million hl of wine/annum, being ranked 10th in the world and 5th in Europe, after Spain, France, Italy, and Portugal. Currently, the waste is incorporated into the soil or burned in open field, leading to increased greenhou...
Article
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In the context of a spectacular growth of the Romanian restaurant market, it has become a necessity for managers to analyze the decision-making process related to restaurant selection toward obtaining a competitive advantage, which can be achieved through better segmentation and adequate targeting. The main objectives involved the identification of...
Article
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Tourism represents a viable alternative for economic activities in rural areas, and improves the living standards of the communities. The aim of the paper is to assess residents’ perceptions towards tourism destination quality in the North-West Development Region of Romania using the following items: natural attractions: cultural and social attract...
Article
Grapes, one of the most cultivated fruits at global level represent, in the same time, a significant biomass source in the renewable energy production. The present review discusses conditions required for a pre-feasibility study for the vine waste biomass conversion to commercial densified biofuels. The purpose is to gather preliminary information...
Article
Full-text available
Grapes, one of the most cultivated fruits at global level represent, in the same time, a significant biomass source in the renewable energy production. The present review discusses conditions required for a pre-feasibility study for the vine waste biomass conversion to commercial densified biofuels. The purpose is to gather preliminary information...
Conference Paper
Full-text available
High Nature Value (HNV) farmland designates "those areas in Europe where agriculture is a major land use and where that agriculture supports, or is associated with, either a high species and habitat diversity […]" Their conservation needs adapted strategies at a territorial level. HNV-Link is a H2020 thematic network (2016-2019) aiming at demonstra...
Article
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Sustainable tourism management plans rely on relevant and consistent information about factors that can influence the decision to visit a protected area. This paper uses the choice experiment method to investigate tourists' preferences with regard to recreational trip characteristics in national and natural parks in Romania. An on-site survey quest...
Article
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Aim . The present study aims to analyze the potential role of VEGF +936 C/T polymorphism in cervical intraepithelial neoplasia. Material and Method . One hundred and eighty-six patients were included in the study: 75 cases (patients diagnosed with CIN) and 111 controls (negative for both HPV testing and cytology). For each patient a single visit wa...
Article
Purpose: E-cadherin is a transmembrane glycoprotein with important roles in the maintenance of cervical squamous epithelium integrity. The purpose of this study was to investigate the relationship between E-cadherin-160 C/A polymorphism and cervical intraepithelial neoplasia (CIN). Methods: A case-control study was performed enrolling 70 CIN cas...
Article
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The present study aim to analyze the relationship between GST M/T genotypes of glutathione S-transferases and cervical intraepithelial neoplasia. A prospective case-control study has been designed including 69 cases with different degrees of cervical dysplasia and 107 controls. All patients had been examined colposcopically. For every patient both...
Article
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The aim of the paper is to investigate if tourists’ preferences toward visiting Bucegi Natural Park, Romania, have changed over time. The study seeks to elicit from the ‘consumer’, who is the tourist, useful information for management decisions. Tourists’ preferences were analyzed using the choice experiments method within two studies. The...
Article
Introduction: Birth assistance for teenage patients continue to be quite frequently in current obstetric practice, even if in recent decades the incidence of teenage pregnancies has declined globally as well as in Romania. Methods: To achieve an analysis of births in this population we conducted a retrospective study during 01.01.2012-31.12.2015 Gy...
Article
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Romania joined the European Union (EU) with a farming structure dominated in terms of numbers by small subsistence and semi-subsistence farms (2007). Through the second Common Agricultural Policy (CAP) pillar they were supported by a special programme to become more economic resilient. In order to see the potential outcome of that program, 202 farm...
Article
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Water availability has become a problem in many countries of the world. Water scarcity can be economic or physical. Agricultural water use accounts for about three quarters of total global consumption; in many developing countries, irrigation represents over 90% of the water used. The purpose of this paper is to explore the willingness to pay for i...
Article
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The rural area of Kurdistan region has specific characteristics and faces many challenges. The rural space of Kurdistan is affected by poverty, and the farmers are dealing with many problems and they hardly survive. The Kurdistan Region is located SW of Asia and NE of Iraq and is composed of three governorates: Erbil (Hawler), Suleimani, and Duhok,...
Chapter
To become a New Member of the EU means, among other criteria, to apply immediately after joining the entire common legislative framework known under the name of the Community Acquis. In the agricultural field, except some deregulations, the New Member States apply the common agricultural policy (CAP) immediately after joining. Thus, the farms becom...
Chapter
Nowadays, the rural area of Kurdistan region is affected by many issues, between that the farmer ethics of using the land and equipment are one of the prominent issues in the region. The aim of this research is to find out the farmer ethics of using land and equipment properly for sustainable development of agriculture. The research area is represe...
Article
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Background: Antibiotics are the most frequently used drugs among hospitalised patients. Antimicrobial resistance is a major health issue and therefore antibiotic consumption should be under strict surveillance. Objective: To evaluate the use of restricted antibiotics in an academic hospital in Romania. Methods: Retrospective evaluation of the...
Article
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The paper aims to assess the impact of the Common Agricultural Policy reform (post 2014) in the environmental vulnerable areas from Romania. It proposes a bio-economic dynamic farm model calibrated with the positive mathematical programming (PMP). The standard PMP approach was extended to simulate the mixed farming systems through the introduction...
Book
Food production and consumption is no longer a traditional activity. Every day we make choices that influence not only our health, but also that of other living beings, and our planet. Our food cultures are changing rapidly. Do we still know our food? And if not, is that a bad thing? This book presents the state of the art in agriculture and food e...
Article
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In the last decades, an increased interest has been expressed by researchers from worldwide towards studies about economic valuation of protected areas given that environmental public goods are not always traded on a market. Economists have struggled with this subject for decades and have developed several methods to estimate the economic values of...
Article
The relation between the organizational frame of land exploiting and the economic efficiency may be emphasized. This positive correlation is confirmed in the agriculture of all developed countries from the West Europe. Thus, researches confirm the fact that the spatial spreading is a necessary premises but not sufficient. In order to obtain some co...
Article
This paper uses stated and revealed preference data to quantify differential welfare impacts from changes in congestion at outdoor recreation sites that support multiple activities. The results indicate that welfare impacts from congestion vary by congestion point, site, and activity within a given site. Estimating willingness to pay (WTP) for mult...
Article
This paper reports the results of a survey conducted in two Romanian national parks. In order to better understand the importance of the presence of natural areas attributes during recreation trips, a choice experiment was administered randomly to tourists. Analysis indicates that the groups have different preferences orderings, thus two multinomia...
Article
Full-text available
This paper examines some of the dimensions of the attitudes of Romanian and foreign students from two universities. Data allow comparisons between Romanian students' answers from two different universities as well as between the opinion of Romanian and foreign students. Although not representative for the general population, a survey of university...
Article
This paper describes an analytical methodology for obtaining statistically unbiased outcomes estimates for programs in which participation decisions may be correlated with variables that impact outcomes. This methodology is particularly useful for intraorganizational program evaluations conducted for business purposes. In this situation, data is li...
Article
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This study provides information about people’s valuation of recreational user days on public lands. The contingent valuation method is used with a random paired dichotomous choice question format. A bivariate probit model is utilized to estimate parameters of a willingness to pay function, which is used to calculate welfare measures associated with...
Article
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This paper intends to develop and analyze the value chain of the rural tourism sector in Romania. Moreover, the actors of the values chain are characterized and the key constraints are identified and interventions are recommended. Romanian rural tourism has considerable developed in the last few years, the high potential of resources representing p...
Article
This paper intends to reveal considerable historic realities regarding the Romanian agriculture, which may be considered the main reasons of the failure of implementing efficient strategies after the year of 1989. The well-known sayings "Romania, the granary of Europe", "The strong interwar Romanian Leu" and "Romania – peony of the interwar period"...
Article
This paper explores the use of choice experiments method to design an efficient survey to assess the economic value of Romanian national and natural parks. The choice experiments method is based on the Lancaster theory according to which the consumer's utility is defined as a function of several attributes that characterize the environmental good o...
Article
The paper investigates the results obtained after implementing the Rural Development Programme in Romania between January 2008 and December 2010. It is a mid-term review of four measures from axis 1 of the programme: setting up the young farmers; modernisation of the agricultural holdings; adding value to agricultural and forestry products and supp...
Article
The paper presents a comparative analysis of three ways to value the degree of modernization of agrarian structures. Three different methods of numeric valuation of agrarian structures are utilized: the average size of agricultural exploitation, the Gini concentration coefficient and the concentration coefficient of the surface in large size exploi...
Article
This study presents the choice experiments as a useful tool to analyze the preferences of tourists toward alternative scenarios of public recreation areas in Romania. Results indicate that tourists prefer taking trips in natural areas with steep slopes and forests, enjoy seeing wilderness, and prefer using information like guidebooks and maps. They...
Article
This paper attempts to reveal and analyze several perspectives of national and natural parks in Romania, as key tools for the process of management planning. A proper evaluation of the national and natural parks involves a complex process, to which specialists from several domains should participate. The perspectives were identified based on the cu...
Article
National and natural parks in Romania offer a large variety of recreational activities. Efficient park management implies finding equilibrium between the conservation of natural resources and development of the infrastructure of the areas. A key element for the decision processes is represented by the economic values of the parks and preferences ex...
Article
Economic values associated to the public parks represent key factors in the development of management plans. The main objective of this paper is to analyze if and how the distance traveled from home to the park influences the decision of taking trips in the case that trips costs increase. The contingent valuation method is utilized in order to calc...
Article
Full-text available
This paper intends to envision and understand recreation visitor attitudes towards the services, recreation opportunities and environmental aspects related to the researched national park. The study population consists of tourists who visited the Rodna Mountain National Park during winter 2009. More than 80% of tourists have visited the park before...
Article
It is emphasized that in order to characterize the degree of modernization of agrarian structures, several quantitative methods should be used. Nowadays, the average size is considered the most popular measure. It is highlighted that this measure is not sufficiently rigorous. Starting from this factual, the paper presents how to value numerically t...
Article
This paper presents the actions taken in an ongoing research project to reveal tourists' preferences and attitudes towards recreation activities taken in the Romanian national and natural parks. The focus was on establishing the area of research and on creating the survey instrument to collect data in the field, needed to estimate the welfare measu...

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