Wszystkie pola: reference values - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Reference values of selected auditory temporal processing tests for Polish school children
Autorzy:: Szkiełkowska, Agata
Włodarczyk, Elżbieta
Piłka, Adam
Powiązania:: https://bibliotekanauki.pl/articles/1398276.pdf
Data publikacji:: 2018
Wydawca:: Index Copernicus International
Tematy:: auditory temporal processing
school-age children
reference values
Opis:: Introduction: Distorted processing of auditory information has a negative impact on the child’s cognitive development. There are only a few studies conducted by Polish researchers determining the normative values of psychoacoustic tests in auditory processing disorders. They are inconsistent due to different methodologies and different research protocols. Objective: The aim of the work was to determine the reference values of selected psychoacoustic tests for the population of Polish children between 7 and 12 years of age. Material and method: The study group consisted of 213 healthy children from 7 to 12 years of age. The condition for including the child in the study was an intellectual norm, proper sound sensitivity, proper development of children’s voice and speech. All children underwent two auditory temporal processing tests. The diagnostic procedure used a standardized Frequency Pattern Test (FPT) and Duration Pattern Test (DPT). The tests were carried out in accordance with the authors’ recommendations, using the original versions available on the CD for 60 dB SL intensity, simultaneously for the right and left ear. Results: The reference values for FPT and DPT tests were determined at various age ranges in children aged 7–12. It has been shown that auditory functions change with age and development of the child. Reference values including age, language, cultural and educational differences were prepared. Conclusions: The development of reference values for individual tests for the Polish children population is a key element in the reliable diagnosis of auditory processing.
Źródło:: Polish Journal of Otolaryngology; 2018, 72, 6; 31-36
0030-6657
2300-8423
Pojawia się w:: Polish Journal of Otolaryngology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Reference values for hamstring and quadriceps strengths in apparently healthy young individuals
Autorzy:: Mbada, Chidozie Emmanuel
Egwu, Ogbonnaya Michael
Obagade, Moses Aegun
Oghumu, Saturday Nicholas
Oke, Israel Kayode
Idowu, Ayodiipo Opeyemi
Oyewole, Adewale
Fatoye, Francis
Powiązania:: https://bibliotekanauki.pl/articles/2122942.pdf
Data publikacji:: 2021-12-30
Wydawca:: Politechnika Opolska. Wydział Wychowania Fizycznego i Fizjoterapii
Tematy:: reference values
quadriceps and hamstring strength
young individuals
Opis:: Background: This paper highlights an essential need for population-specific databases on muscle performance parameters due to the expected ethnic differences and other variability factors. In order to address the issue of the lack of these vital normative data in developing countries, the study reported here was meant to determine the reference values for hamstring and quadriceps strengths in apparently healthy young Nigerian individuals. Methods: A cross-sectional study recruited 194 apparently healthy participants aged 18-35 years. The participants were clustered into four age categories (<20 years; 21-25 years; 26-30 years and 31-35 years). Anthropometric measurements (weight, height and body mass index) were taken following the standard guidelines. A pocket balance and a cable tensiometer were used for hamstrings strength and quadriceps strength measurements, respectively. The Hamstring-Quadriceps (H/Q) Strength ratio was calculated. Descriptive statistics of the mean and the standard deviation, and the percentiles summarize the data collected. T-test inferential statistics, an ANOVA test, and the Pearson’s correlation coefficient were applied in the analysis of the data. The alpha level was p≤0.05. Results: The mean hamstring and quadriceps strengths recorded were 25.83Kg and 44.18Kg, respectively. The mean hamstring and quadriceps strengths of the male participants were significantly (p<0.05) higher than those of the female participants. Also, the mean hamstring and quadriceps strengths differed significantly (p<0.05) across the age categories except for the H/Q ratio, which showed no significant difference (p>0.05). Conclusion: This study has provided reference values for hamstring and quadriceps strengths of apparently healthy young Nigerians.
Źródło:: Journal of Physical Education & Health - Social Perspective; 2021, 10, 17; 5-13
2084-7971
Pojawia się w:: Journal of Physical Education & Health - Social Perspective
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Neck circumference reference values for apparently healthy Nigerian adults aged 18 to 60 years
Autorzy:: Ojo, Ojoawo A.
Temitayo, Adeyemi P.
Abiodun, Ibidun O.
Oluwaole, Awotidebe T.
Ayotunde, Awotipe D.
Powiązania:: https://bibliotekanauki.pl/articles/39823836.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Opolska. Wydział Wychowania Fizycznego i Fizjoterapii
Tematy:: Neck circumference
Reference value
Adults
Nigerians
Opis:: Neck circumference (NC) is a marker of upper body subcutaneous adipose tissue distribution. Although it is commonly used in many parts of the world it appears to lack reference values as an indicator of metabolic and cardiovascular risk in the Nigerian population. A total of 2000 apparently healthy adults participated in this study. NC was measured using a non-stretchable tape between the mid-cervical spine and mid-anterior neck of each participant standing upright. In men the NC was measured just below the laryngeal prominence (Adam’s apple). Data was summarized using descriptive and inferential statistics. The alpha level was set at 0.05. The Nigerian men under study had significantly higher NC values than the women (t = 36.986, p = 0.001). The mean values for men and women below 20 years, between 21 and 30 years, 31 and 40 years, 41 and 50 years, and 51 and 60 years old were 37.29 ± 1.96 cm and 32.45 ± 1.84 cm, 37.69 ± 2.16 cm and 33.12 ± 2.52 cm, 37.67 ± 2.25 cm and 32.46 ± 2.24 cm, 38.01 ± 2.49 cm and 33.36 ± 2.67 cm, and 37.59 ± 2.29 cm and 33.14 ± 1.78 cm, respectively. The 95 percentile values for men and women younger than 20 years, 31-40 years, 41-50 years, and 51-60 years were 41cm and 36 cm, 42 cm and 38 cm, 41cm and 37 cm, 43 cm and 39 cm, and 42 cm and 37 cm, respectively. Based on age-and-sex neck circumference reference values, the means and percentiles can be used as indicators of acceptable and abnormal NC values for Nigerian adults between the ages of 18 to 60 years.
Źródło:: Journal of Physical Education & Health - Social Perspective; 2022, 11, 19; 23-29
2084-7971
Pojawia się w:: Journal of Physical Education & Health - Social Perspective
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Assessment of diclofenac LC50 reference values in juvenile and embryonic stages of the zebrafish (Danio rerio)
Autorzy:: Praskova, E.
Voslarova, E.
Siroka, Z.
Plhalova, L.
Macova, S.
Marsalek, P.
Pistekova, V.
Svobodova, Z.
Powiązania:: https://bibliotekanauki.pl/articles/31162.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: The aim of the study was to compare the acute toxicity of diclofenac to juvenile and embryonic stages of the zebrafish (Danio rerio). Acute toxicity tests were performed on the aquarium fish Danio rerio, which is one of the model organisms most commonly used in toxicity testing. The tests were performed using a semi-static method according to OECD guideline No. 203 (Fish, acute toxicity test). Embryo toxicity tests were performed in zebrafish embryos (Danio rerio) in compliance with OECD No. 212 methodology (Fish, short-term toxicity test on embryo and sac-fry stages). The results were subjected to a probit analysis using the EKO-TOX 5.2 programme to determine 96hLC50 and 144hLC50 (median lethal concentration, 50% mortality after a 96 h or 144 h interval, respectively) values of diclofenac. The statistical significance of the difference between LC50 values in juvenile and embryonic stages of Danio rerio was tested using the Mann-Whitney non-parametric test implemented in the Unistat 5.1 programme. The LC50 mean value of diclofenac was 166.6 ± 9.8 mg/L in juvenile Danio rerio, and 6.11 ± 2.48 mg/L in embryonic stages of Danio rerio. The study demonstrated a statistically higher sensitivity to diclofenac (P<0.05) in embryonic stages compared to the juvenile fish.
Źródło:: Polish Journal of Veterinary Sciences; 2011, 14, 4
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: X-Ray Fluorescence Techniques in Medical Applications: Reference Values of Elements in Human Serum, Urine and Hair
Autorzy:: Majewska, U.
Banaś, D.
Braziewicz, J.
Kubala-Kukuś, A.
Pajek, M.
Sychowska, I.
Wudarczyk-Moćko, J.
Antczak, G.
Borkowska, B.
Góźdź, S.
Powiązania:: https://bibliotekanauki.pl/articles/1197643.pdf
Data publikacji:: 2014-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 32.30.Rj
87.64.kd
87.64.kv
Opis:: The aim of undertaken long-term studies of the elemental composition of human serum, urine, and hair is to define reference values of elements concentration. For this purpose the total reflection X-ray fluorescence method was applied to determination of several elements concentration in human serum, urine and hair (S, K, Ca, Fe, Cu, Zn, Br, P, Cr, and Rb in serum samples; Fe, Cu, Zn, Rb, Cr, Mn, and Sr in urine samples; S, K, Ca, Fe, Cu, Br, Zn, Cl, Ti, Cr, Mn, Ni, and Se in hair samples) in the range of concentration from ppb to several hundred ppm. The method of selection of the control group, the experimental setup and its calibration procedure are described. We also present sample preparation methods and procedure of measurements.
Źródło:: Acta Physica Polonica A; 2014, 125, 4; 864-868
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Reference values of spatiotemporal parameters, joint angles, ground reaction forces, and plantar pressure distribution during normal gait in young women
Autorzy:: Fryzowicz, A.
Murawa, M.
Kabaciński, J.
Rzepnicka, A.
Dworak, L. B.
Powiązania:: https://bibliotekanauki.pl/articles/307416.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: kobieta
kinematyka
biomechanika chodu
pedobarografia
women
kinematics
ground reaction forces
gait biomechanics
pedobarography
reference data
Opis:: The aim of this study was to establish the reference values of spatiotemporal parameters, joint angles, ground reaction forces and plantar pressure distribution collected simultaneously on the same measurement path during normal gait in a homogenous group of young, healthy women. Methods: The studied group consisted of 28 healthy women aged 21 years on average. The motion capture system BTS Smart-D, 2 AMTI force platforms and Footscan pedobarographic platform were used in this research. The 14-metre measurement path and the 6-metre distance that examined women had to walk through before entering the measurement area ensured that a natural gait pattern was recorded. Statistical analysis was performed to evaluate differences between right and left lower extremities. Results: The applied method enabled collecting several parameters regarding normal female gait biomechanics such as: spatiotemporal parameters, angle-time characteristics as well as range of motion of pelvis, hip, knee and ankle joints in gait cycle, force-time characteristics and peaks of ground reaction force components in stance phase, peak pressure and time of loading of defined foot regions in stance phase. Conclusions: The results may be used by clinicians, physiotherapists or researchers as a reference in diagnosing gait disorders or evaluating patient’s walking pattern. In recent literature there are some disparities in gait parameters reference values even regarding similar research groups. These differences may arise from distinct method, slower or faster gait, other laboratory environment etc. This should be considered and more than one source of normative values should be checked when searching for reference data.
Źródło:: Acta of Bioengineering and Biomechanics; 2018, 20, 1; 49-57
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: B and T lymphocytes in rabbits change according to the sex and throughout the year
Autorzy:: Niedźwiedzka-Rystwej, P.
Tokarz-Deptuła, B.
Abrantes, J.
Esteves, P.J.
Deptuła, W.
Powiązania:: https://bibliotekanauki.pl/articles/2087335.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: rabbit
B and T lymphocytes
reference values
Źródło:: Polish Journal of Veterinary Sciences; 2020, 23, 1; 37-42
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Wartości referencyjne stężeń magnezu w osoczu i krwinkach czerwonych
Otnositelnye stoimosti koncentracii magnezija v plazme i ehritrocitakh
Reference values of magnesium concentrations in plasma and erythrocytes
Autorzy:: Grzybowski, J.
Czyrski, J.
Czelakowski, W.
Rudzka, J.
Powiązania:: https://bibliotekanauki.pl/articles/2187791.pdf
Data publikacji:: 1987
Wydawca:: Polskie Towarzystwo Diagnostyki Laboratoryjnej
Źródło:: Diagnostyka Laboratoryjna; 1987, 23, 3; 175-180
0867-4043
Pojawia się w:: Diagnostyka Laboratoryjna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Are the Heat Capacities of Liquids Calculated from Speeds of Sound and pρT Relationships Reliable? A Comparison with the Reference Values and a Discussion of the Uncertainties
Autorzy:: Szpaczek, Sylwia
Marczak, Wojciech
Powiązania:: https://bibliotekanauki.pl/articles/31339956.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: speed of sound
density
compressibilt
expansibility
calorimetr
elevated pressure
Opis:: Recent advances in the construction of speed of sound meters made high-accuracy routine measurements possible in laboratories non-specialized in physical acoustics. Reliable values of the isentropic compressibility can be obtained from speeds of sound and densities of liquids using the Laplace formula. Strict thermodynamic relationships connect the isentropic compressibility of a medium and its density as a function of temperature and pressure with the heat capacity. These relationships result from the principles of thermodynamics and require no approximations or molecular models. In this study, the heat capacities of twelve liquids: hydrocarbons, acetonitrile, and ionic liquids were calculated from the speeds and densities taken from the literature sources. The agreement of the calculation results with the reference heat capacities, either critical values or measured calorimetrically, was satisfactory. The relative uncertainty of the calculated heat capacities was rather conservatively estimated for 5%. If the measurement procedures were optimized for heat capacity determination, better results would be attained, with the uncertainty probably smaller than 1%. Thus, the speed-and-density method is a potential alternative to classical calorimetry.
Źródło:: Archives of Acoustics; 2022, 47, 4; 547-554
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Biologiczne czynniki szkodliwe: normy, zalecenia i propozycje wartości dopuszczalnych
Biohazards: standards, guidelines, and proposals for threshold limit values
Autorzy:: Górny, R. L.
Powiązania:: https://bibliotekanauki.pl/articles/138478.pdf
Data publikacji:: 2004
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: biologiczne czynniki szkodliwe
ocena narażenia
normy
wartości referencyjne
biohazards
exposure assessment
standards
reference values
Opis:: Ekspozycja na czynniki biologiczne często prowadzi do wystąpienia wielu niekorzystnych skutków zdrowotnych u narażonych osób. Wypracowanie wartości normatywnych i (lub) referencyjnych dla biologicznych czynników szkodliwych obecnych w powietrzu jest warunkiem koniecznym zachowania właściwego stanu środowiska zarówno pracy, jak i pozazawodowego, a także właściwej jego kontroli i oceny. W artykule dokonano przeglądu istniejących w piśmiennictwie przedmiotu standardów, propozycji wartości normatywnych i wartości referencyjnych dla takich biologicznych czynników szkodliwych, jak: bakterie, grzyby, substancje pochodzenia drobnoustrojowego (np. endotoksyny i subtylizyna), alergeny zwierzęce (kota, psa i roztoczy) oraz środowisk specjalnych (szpitali czy pomieszczeń ambulatoryjnych), a także powierzchni w pomieszczeniach, gdzie wymagana jest duża czystość powietrza. Wszechstronnie przedstawiono istniejący stan prawny w tej dziedzinie w Polsce, a ponadto omówiono ograniczenia związane z praktycznym stosowaniem wartości normatywnych i problemy związane z dokonywaniem oceny zagrożeń spowodowanych bioaerozolami, przy braku kryteriów interpretacyjnych wyników pomiarów.
Exposure to biological agents very often leads to adverse health effects in susceptible individuals. Development of values for biologically derived airborne contaminants seems to be necessary to prevent harmful exposure in occupational and non-occupational environments, to ensure reliability of measurement methods and proper interpretation of the results. This paper presents an overview of existing quantitative standards and guidelines for biological agents such as bacteria, fungi, substances derived from microorganisms (endotoxins, subtilisins), animal (mite, cat and dog) allergens, for special environments such as hospitals and related facilities, as well as for microbial contamination of surface in indoor spaces where high air quality is required. This article describes limitations of the available recommendations and discusses decision making and data interpretation issues without limit values for bioaerosols. Moreover, a special emphasis is placed in the paper on existing quantitative Polish standards and proposals for occupational exposure limits and reference limit values for work and other indoor environments.
Źródło:: Podstawy i Metody Oceny Środowiska Pracy; 2004, 3 (41); 17-39
1231-868X
Pojawia się w:: Podstawy i Metody Oceny Środowiska Pracy
Dostawca treści:: Biblioteka Nauki

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