Search results for "IHA"
showing 10 items of 927 documents
Zvaigžņotā Debess: 2012, Rudens (217)
2012
Saturs: P.Stučkas LVU ieguldījums astronomijas speciālistu sagatavošanā ; Starp "maldugunīm" un zvaigznēm ; A.Alksnis. Dawn kosmosa misija palīdz atklāt asteroīda Vesta noslēpumus ; D.Docenko. Komentārs: Par Higsa bozona atklāšanu ; I.P. Frīdriha Candera 125.dzimšanas dienai Krievijas Pasts izdevis marku ; P.Leckis. Mākoņu pārklātais pavadonis ; D.Kotlere, I.Šmelds. Kosmisko atlūzu novērojumi Ventspils Starptautiskajā radioastronomijas centrā ; Pirmo reizi “ZvD”: Dace Kotlere ; I.P. Divas dienas, godinot Jāni Ikaunieku (28.IV 1912.–27.IV 1969.) ; I.Pundure. Jāņa Ikaunieka devums Latvijas astronomijai ; N.Cimahoviča, Imants Vilks, R.Saveļjeva, T.Millers, A.Krastiņš. Atmiņas par Ikaunieku ; E…
Zvaigžņotā Debess: 2012, Vasara (216)
2012
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: E.Bervalds. From Intention to Reality (abridged) ; A.Egle. Conceptions of Our Ancestry About Heavenly Bodies and Astronomical Phenomena (abridged) ; NEWS: I.Eglītis. Asteroid Discovered at Baldone Observatory Named after Ikaunieks ; A.Alksnis. ALMA Helps to Study Planetary System of Star Fomalhaut ; A.Alksnis. More than Ten Light-Years Long Filament of Cosmic Dust Discovered ; A.Alksnis. Billions of Rocky Planets in the Milky Way ; SPACE RESEARCH and EXPLORATION: M.Sudārs. The Little Secret Space Shuttle Is Flying! ; M.Sudārs. Too Much Litter! Not in Rubbish Dump, but in the Space! ; “ENERĢIJA un PASAULE” VISITS “ZVAIGŽŅOTĀ DEBESS”: Talk with D…
Design of a Programmable and Modular Neuromuscular Electrical Stimulator Integrated Into a Wireless Body Sensor Network
2021
Neuromuscular electrical stimulation finds application in several fields, from basic neurophysiology, to motor rehabilitation and cardiovascular conditioning. Despite the progressively increasing interest in this technique, its State-of-the-Art technology is mainly based on monolithic, mostly wired devices, leading to two main issues. First, these devices are often bulky, limiting their usability in applied contexts. Second, the possibility of interfacing these stimulation devices with external systems for the acquisition of electrophysiological and biomechanical variables to control the stimulation output is often limited. The aim of this work is to describe the design and development of a…
Anisotropic Navier Kirchhoff problems with convection and Laplacian dependence
2022
We consider the Navier problem-Delta(2)(k,p)u(x)=f(x,u(x), del u(x), Delta u(x)) in Omega, u vertical bar(partial derivative Omega) =Delta u vertical bar(partial derivative Omega) = 0,driven by the sign-changing (degenerate) Kirchhoff type p(x)-biharmonic operator, and involving a (del u, Delta u)-dependent nonlinearity f. We prove the existence of solutions, in weak sense, defining an appropriate Nemitsky map for the nonlinearity. Then, the Brouwer fixed point theorem assessed for a Galerkin basis of the Banach space W-2,W-p(x)(Omega)boolean AND W-0(1,p(x))(Omega) leads to the existence result. The case of nondegenerate Kirchhoff type p(x)-biharmonic operator is also considered with respec…
Strong Instability of Ground States to a Fourth Order Schrödinger Equation
2019
Abstract In this note, we prove the instability by blow-up of the ground state solutions for a class of fourth order Schrödinger equations. This extends the first rigorous results on blowing-up solutions for the biharmonic nonlinear Schrödinger due to Boulenger and Lenzmann [8] and confirm numerical conjectures from [1–3, 11].
Schoolyard affordances for physical activity: a pilot study in 6 Nordic–Baltic countries
2021
Environmental settings influence children’s and adolescents’ physical activity (PA) in neighborhoods and schoolyards. This study aimed to explore the main characteristics of schoolyards in six Nordic–Baltic countries, to document how those facilities provide affordances for PA in 7–18 year–old schoolchildren, and how the schoolyard meets children’s preferences. One schoolyard was studied in each included country: Iceland, Norway, Finland, Lithuania, Latvia, and Estonia. The affordances, facilities, and equipment for PA in schoolyards were identified through orthophoto maps and standard registration forms. Children’s preferences were collected through group interviews at each participating s…
Differences in cardiometabolic risk profiles between Chinese and Finnish older adults with glucose impairment and central obesity.
2022
Abstract Background Obesity and ethnicity play important roles in cardiovascular complications in patients with type 2 diabetes mellitus (T2DM). This study aimed to compare cardiometabolic risk profiles between Chinese and Finnish older adults of central obesity with prediabetes or T2DM. Methods Study subjects were 60–74 years old and originated from two population samples. The Finnish subjects came from the Kuopio Ischemic Heart Disease (KIHD) study (n = 1089), and the Chinese subjects came from the Shanghai High-risk Diabetic Screen (SHiDS) study (n = 818). The KIHD and SHiDS studies used similar questionnaires to determine participants’ baseline characteristics regarding the history of m…
Body Mass Index and Waist Circumference as Predictors of Disability in Nonagenarians: The Vitality 90+ Study.
2017
Background Only scarce data exist on the association between obesity and disability in the oldest old. The purpose of this prospective study is to examine if body mass index and waist circumference (WC) are associated with incident mobility and activities of daily living (ADL) disability in nonagenarians. Methods We used longitudinal data from the Vitality 90+ Study, which is a population-based study conducted at the area of Tampere, Finland. Altogether 291 women and 134 men, aged 90-91 years, had measured data on body mass index and/or WC and did not have self-reported mobility or ADL disability at baseline. Incident mobility and ADL disability was followed-up on median 3.6 years (range 0.…
Assessing physical performance and physical activity in large population-based aging studies: home-based assessments or visits to the research center?
2019
Abstract Background The current study aims to compare correlations between a range of measures of physical performance and physical activity assessing the same underlying construct in different settings, that is, in a home versus a highly standardized setting of the research center or accelerometer recording. We also evaluated the selective attrition of participants related to these different settings and how selective attrition affects the associations between variables and indicators of health, functioning and overall activity. Methods Cross-sectional analyses comprising population-based samples of people aged 75, 80, and 85 years living independently in Jyväskylä, Finland. The AGNES stud…
Muscular and cardiorespiratory fitness are associated with health-related quality of life among young adult men
2020
Abstract Background Despite numerous studies providing evidence for positive effects of physical activity and physical fitness, evidence for association between physical fitness and health-related quality of life (HRQoL) in young adults is limited. The aim of the present cross-sectional study was to investigate the association of cardiorespiratory and muscular fitness with HRQoL from the perspective of its physical and mental components among young adult Finnish males. Methods The sample consisted of 754 men, with the mean age of 26 years (SD 6.7 years), who participated in the military refresher training. HRQoL was measured using the Finnish RAND 36-item health survey. Cardiorespiratory fi…