Search results for " linear regression"
showing 7 items of 97 documents
Inverse association between type 2 diabetes and aortic root dimension in hypertensive patients
2017
Background Some data support the concept that aortic root diameter (ARD) in hypertension may be regarded as a marker of subclinical organ damage. The impact of type 2 diabetes mellitus (DM) on cardiac structure and function is known, although the relationship between DM and ARD is not clear. The aim of our study was to evaluate the influence of DM on ARD in hypertensive patients. Methods We enrolled 1693 hypertensive patients (aged 63.7 ± 9.6 years). The population was divided into two groups: the first one with DM (n = 747) and the second one without DM (n = 946). ARD was measured by echocardiography at level of Valsalva's sinuses using echocardiography M-mode tracings. It was considered a…
Study on the Correlation Between Working Capital and Economic Value Added for the Companies Relating to the Hotel and Restaurant Industry Listed on t…
2020
In the present study was determined the influence of the value change of the working capital on the variation of the economic value added indicator on a sample consisting of a number of 26 companies (2007-2017) belonging to the hotel and restaurant industry, listed on the Bucharest Stock Exchange. The correlation between the indicators was achieved by using the multiple linear regression method. The study showed that there is a strong link between the two economic indicators, over 80% of the change in economic value being explained by the change in working capital. It was found that a 1% increase in working capital, for the period 2007-2017, had the effect of increasing the economic value a…
The Influence of Hedonic and Utilitarian Motivators on Likelihood to Buy a Tourism Package
2013
To fully understand the pattern of choice, it is important that any explanation of consumer behavior to be accompanied by a complete understanding of the interplay between a consumer’s functional goals and experiential preferences within the decision context. Consumer researchers have increasingly begun to investigate consumer choice based on distinctions that involve the purchase and consumption of goods for pleasure versus for more utilitarian and instrumental purposes. Consumers are often faced with these types of choices between hedonic and utilitarian alternatives that are at least partly driven by emotional desires rather than cold cognitive deliberations. This research approaches fac…
Buying Intentions Influenced by Various Determinants in Tourism
2014
Marketing has acquired a central role in tourism because it helps organizations to create value in transactions with buyers. Thus, this important area of any business process is used to educate consumers, to add value to their experience in tourism, and to seek new ways to reward loyalty through innovative schemes (e.g., programs for frequent travelers). This paper presents the examination of the responses of 154 tourists in relation to their intention to purchase a travel package and the factors that are usually decisive in the decision making process regarding tourism services, factors that could also create the loyalty that any tourism enterprise can create through marketing.
Nekustāmā īpašuma vērtēšanas modeļi
2015
Bakalaura darbs veltīts nekustāmā īpašuma masveida vērtēšanas problemātikai. Bakalaura darbā apskatīti nekustāmā īpašuma masveida vērtēšanas pamatprincipi un vērtēšanā izmantotie modeļu tipi. Darbā apskatīta ratio analīzes metodoloģija, kas tiek izmantota masveida vērtēšanas rezultātu novērtēšanai. Aprakstot spēkā esošo dzīvokļa īpašuma vērtēšanas modeli, ko izmanto Valsts zemes dienests, darbā piedāvāts vērtēt dzīvokļa īpašumu kā vienotu īpašumu, nedalot tās vērtību atsevišķās sastāvdaļas, tādās kā zeme, koplietošanas telpas un dzīvokļa īpašuma telpu grupas, kā arī veikti citi esošā modeļa uzlabojumi. Pārejot uz vienota īpašuma vērtēšanas principu, ar lineārās regresijas palīdzību iegūts j…
Associations of physical performance and physical activity with mental well-being in middle-aged women
2021
Abstract Background To investigate whether physical performance is independently of physical activity (PA) associated with positive and negative dimensions of mental well-being in middle-aged women. Methods Data were drawn from the Estrogenic Regulation of Muscle Apoptosis (ERMA) study in which women 47 to 55 years were randomly selected from the Finnish National Registry. They (n = 909) participated in measurements of physical performance (handgrip force, knee extension force, vertical jumping height, maximal walking speed, and six-minute walking distance). Both mental well-being (the Centre for Epidemiologic Studies Depression Scale, the International Positive and Negative Affect Schedule…
Adsorption of anionic dyes onto natural, thermally and chemically modified smectite clays
2014
Abstract The aim of this study was to determine the adsorption capacity of the smectite clays (from the overburden of the lignite deposit in Belchatow) for two anionic dyes, i.e. Reactive Blue 81 (RB-81) and Direct Blue 74 (DB-74). Additionally, the influence of the thermal and chemical (acid and alkali) clay modifications on the amount of bonded dyes was investigated. The adsorption capacity of the clay (natural and modified) was different for studied dyes and depended on the initial concentration and modification type. All the modified clays adsorbed the dyes at pH>pHPZC as the negatively charged surfaces of their particles (in accordance with the formula: AOH ↔ AO- + H+) prevented the…