scholarly journals Morphological differentiation of Primula veris L. pollen from natural and cultivated populations

2011 ◽  
Vol 73 (3) ◽  
pp. 229-232 ◽  
Author(s):  
Maria Morozowska ◽  
Krystyna Idzikowska
Keyword(s):  
Statistical Analysis ◽  
Natural Populations ◽  
Pollen Grains ◽  
Morphological Differentiation ◽  
Critical Test ◽  
Primula Veris ◽  
Comparative Statistical Analysis ◽  
Cultivated Populations ◽  
One Way Anova

Micromorphological characterisation and the comparative statistical analysis of the size of <em>Primula veris </em>L. pollen grains collected in three natural and three cultivated populations were done. Observations were carried out with SEM. The obtained measurements were analysed with the use of one-way ANOVA, Kruskal-Wallis Test and the Student-<em>t</em> Test. Pollen grains from long-styled ('pin') flower-morphs were mainly 6 colpate and from shortstyled ('thrum') flower-morphs 8 colpate. Colpi of some grains from 'thrum' flowers were 'sinuous' and 'circular', and they incised into the apocolpium zone. Ornamentation of 'pin' pollen grains was microreticulate, with lumina up to 0.8 μm wide, and for pollen grains from 'thrum' flowers was reticulate and eureticulate with lumina 1.1-1.7 μm wide. In lumina of mesocolpium area some free columellae were observed. Pollen grains from 'thrum' flower-morphs were more variable in size, both in natural and in cultivated populations, than grains from 'pin' flower-morphs. The differences in mean length (P) and breadth (E) of pollen grains from 'thrum' flowers collected in cultivated populations were statistically important (F<sub>P</sub> = 3.154 for the critical F<sub>005</sub> = 3.098; K-W<sub>e</sub> = 7.469 for the critical Test value <sub>α=005</sub> = 5.991). Pollen grains from 'thrum' flowers were bigger when coming from plants growing in natural populations (t<sub>E</sub> = 2.784 for the critical Test value <sub>α=005</sub> = 2.001).

Gendered Marketing of Food Supplements in Lifestyle Magazines in Greece

2020 ◽  
Vol 1 (1) ◽  
pp. 54-63
Author(s):  
Effrosyni Kotsaga
Keyword(s):  
Public Health ◽  
Statistical Analysis ◽  
Print Media ◽  
Women's Magazines ◽  
Quality Characteristics ◽  
Food Supplements ◽  
Health Concerns ◽  
Comparative Statistical Analysis ◽  
Gendered Stereotypes

Background: Marketing of food supplements in Greece in print media has not been examined and this study is the first attempt to provide a comparative statistical analysis. Methods: Lifestyle magazines that were distributed all over Greece and aimed at women and men were collected in the years 2014 and 2016. Five criteria with their subcriteria were developed and were related to the branding of the food supplements; their quality characteristics; the information given about health concerns; photographs of people who promoted food supplements and to claims of their suitability. Results: It seems that in terms of product branding, women’s magazines were more likely to be targeted. Some quality characteristics such as information about the ingredients of food supplements or information about banned substances were more likely to be seen in women’s magazines in 2016. In 2014 and 2016, not all advertisements provided information about health concerns and among those which informed readers about health concerns, differentiation in target audiences was observed. Photographs that showed people promoting food supplements as well as claims of suitability for various categories of consumers, seem to be gendered in 2014 but this trend was not strong enough in 2016. Conclusion: It can be argued that the marketing of food supplements was aggressive and gendered in 2014 and changed in 2016 with better information on public health but had retained some gendered stereotypes.

scholarly journals Cursus in Dante Alighieri’s prose books De vulgari eloquentia, De Monarchia and Convivio

2016 ◽  
Vol 3 (1) ◽  
pp. 105-120
Author(s):  
Annika Mikkel
Keyword(s):  
Statistical Analysis ◽  
Medieval Latin ◽  
Word Stress ◽  
Comparative Statistical Analysis ◽  
Prose Rhythm ◽  
De Vulgari Eloquentia

This paper examines the prose rhythm in Dante’s Latin and Italian prose. The samples of Dante’s Latin books De vulgari eloquentia and De Monarchia and the Italian book Convivio are analysed with the purpose of finding the incidence and patterns of prose rhythm. The method used in this paper is comparative-statistical analysis. The rhythm of classic prose was based on the quantity of syllables, while the medieval Latin prose rhythm was based on word stress and called cursus. Although the use of cursus was more popular in Latin prose, it can also be found elsewhere, including Italian prose. The analysis reveals that rhythmical sentences endings have a role in Dante’s prose and that the cursus appear in his Latin works, as well as in his works in vernacular.

scholarly journals Medial plantar nerve: normative parameters of an electroneuromyographic study in adults

2021 ◽  
Vol 11 (2) ◽  
pp. 28-34
Author(s):  
D. A. Grishina ◽  
N. A. Suponeva
Keyword(s):  
Statistical Analysis ◽  
Healthy Subjects ◽  
Tibial Nerve ◽  
Age Group ◽  
Research Practice ◽  
Healthy Individuals ◽  
Medial Plantar Nerve ◽  
Comparative Statistical Analysis ◽  
Group 2 ◽  
Group 1

Background. The study of the sensitive portion of the medial plantar nerve is relevant not only in the examination of patients with tibial nerve mononeuropathy or its branches, but also in the diagnosis of polyneuropathies.Objective: to analyze the normative parameters of the sensory potential recorded during the study of the medial plantar nerve by the orthodromic method in healthy adults.Materials and methods. 126 sensitive fibers of the medial plantar nerves were studied on the Dantec Keypoint G4 device (Denmark) in 63 healthy individuals (31 men and 32 women; age from 20 to 80 years). 3 groups were identified taking into account age: group 1 included healthy people aged 20 to 39 years (n = 23); group 2 consisted of people aged 40 to 60 years (n = 20); and 3 – older than 60 years (n = 20). The parameters of the sensory potential of the medial plantar nerve are analyzed.Results. The sensory potential in the study of the sensitive portion of the medial plantar nerve was registered in all 126 healthy subjects. Comparative statistical analysis did not demonstrate significant differences between groups 1–3 in the values of such parameters of the sensory potential as the latency of the onset, the duration of the negative phase and the rate of propagation of excitation. At the same time, in groups 2 and 3, the magnitude of the amplitude from peak to peak of the sensory potential was significantly lower compared to group 1, and averaged 8.92 and 7.86 MV, respectively.Conclusion. Knowledge of the regulatory parameters will allow expanding the use of electroneuromyography of the sensitive portion of the medial plantar nerve in clinical and research practice.

scholarly journals Selection of Superior Genotypes in 37 Clones of Camu-Camu by Repetitivity Analysis

2017 ◽  
Vol 9 (6) ◽  
pp. 175
Author(s):  
Mario Pinedo Panduro ◽  
Edvan Alves Chagas ◽  
Elvis Paredes Davila ◽  
Carlos Abanto Rodriguez ◽  
Ricardo Bardales Lozano ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Statistical Analysis ◽  
Analysis Of Variance ◽  
Natural Populations ◽  
Reproductive Development ◽  
Fruit Weight ◽  
Peruvian Amazon ◽  
Superior Genotypes ◽  
Selection Of

In order to select camu-camu superior genotypes, a comparative of clones from natural populations, farmer plantations and an experimental field of the National Institute of Agrarian Innovation (INIA), was established in 2004 in varzea, at the Peruvian Amazon Research Institute (IIAP). Nine harvests between 2006 and 2016 have been evaluated, including variables in vegetative and reproductive development states. Statistical analysis was performed using the SPSS program for analysis of variance and SELEGEN REML/BLUP for repetitivity analysis of “fruit yield” (FY) and “fruit weight” (FW) with 5 and 4 measurements (years) respectively. For FY, a repetitivity index r = 0.117±0.07 was obtained with a selective precision of 0.63 and efficiency of 1.84 where clones 69, 48, 58, 50, 61, 13, 18, 29, 49 and 32, were selected in descending order of merit. For FW, r = 0.690±0.294 was obtained with selective precision of 0.948, efficiency of 1.14 and selection of clones 44, 13, 26, 23, 69, 64 22, 52, 27 and 8. As for the content in ascorbic acid, clones 48, 32 and 35 occupied the first places with more than 2000 mg of ascorbic acid/100 g. The selections achieved strengthened the pre-improvement work by conferring vigour y fiavility of a long term research.

scholarly journals Effect of clasp type and pullout location on clasp retention in different environment: In vitro study

2017 ◽  
Vol 11 (02) ◽  
pp. 216-220 ◽  
Author(s):  
Bilal Mourshed ◽  
Fuad Abdo Al-Sabri ◽  
Nashwan Ahmed Qaed ◽  
Nader Alaizari ◽  
Hashem Motahir Al-Shamiri ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
In Vitro Study ◽  
Retentive Force ◽  
Crosshead Speed ◽  
Tukey Test ◽  
Retention Force ◽  
Test Models ◽  
Molar Teeth ◽  
One Way Anova

ABSTRACT Objective: The purpose of this study was to investigate the importance of pullout location and clasp types in two different environments to dislodge the clasp. Materials and Methods: Mandibular test models with natural premolars and molar teeth were used to test four types of clasp (each 12) (Akers, Rest plate Akers, Half and Half, and Ring clasp) with three different pullout location for each type (ring on the rest, loop on the saddle, and wax arising from both rests) in dry and natural fresh saliva environment. Each clasp was pulled out 10 times with a crosshead speed of 10 mm/min, and the force required to withdraw each was measured. Statistical Analysis Used: A one-way ANOVA and Tukey test were used. Results: The ring on the saddle pullout location has the highest retention force while ring on the rest was the lowest. In addition, ring clasp has the highest retention force. Conclusion: Clasp type and pullout location had a significant effect on the retentive force.

The Implementation of Statistical Inference to Study the Bending Strength of Sustainable Hybrid Sandwich Panel Composite

2011 ◽  
Vol 250-253 ◽  
pp. 956-961
Author(s):  
Jauhar Fajrin ◽  
Zhu Ge Yan ◽  
Frank Bullen ◽  
Hao Wang
Keyword(s):  
Statistical Analysis ◽  
Statistical Inference ◽  
Intermediate Layer ◽  
Sandwich Panel ◽  
Bending Strength ◽  
Sandwich Panels ◽  
T Test ◽  
Bending Stress ◽  
Comparative Statistical Analysis

The study reported here involves the evaluation of the ultimate bending stress (bending strength) of hybrid sandwich panels using a simple comparative statistical analysis. Four sets of beam were tested with each set consisting of modified beams (MB) and unmodified beam (UB) samples. A total of 42 beam samples were tested using 3 point bending followed by statistical inference analysis using a t-test. The results show that the introduction of an intermediate layer has a significant effect on increasing the bending strength of the new hybrid sandwich panel composite.

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