scholarly journals Relationship Between Ion Content in Seed and Spongy Coat of the Medicinal Halophyte Crithmum maritimum L. and Germination Capacity

2010 ◽  
Vol 2 (2) ◽  
pp. 72-74 ◽  
Author(s):  
Abdallah ATIA ◽  
Ahmed DEBEZ ◽  
Chedly ABDELLY ◽  
Abderrazak SMAOUI
Keyword(s):  
Comparative Study ◽  
Salt Solution ◽  
Mineral Content ◽  
Distilled Water ◽  
Germination Capacity ◽  
Ion Content ◽  
Wide Range ◽  
Efficient Mechanisms ◽  
Determining Factor ◽  
Seeds And Fruits

Halophytes thrive in a wide range of habitats and climates, which may largely determine the seed mineral content, and hence influence both their germination capacity and their subsequent establishment. In order to assess this hypothesis, we performed a comparative study on three Tunisian proveniences of the perennial oilseed halophyte Crithmum maritimum L. The ion (Cl-, K+, and Na+) contents in seeds and fruits were determined and their likely relationship to germination capacity was addressed. Whether seeds were sown in distilled water or under moderate salt solution (100 mM NaCl) germination of the three proveniences was negatively correlated with the seed K+, Na+ and Cl- content. The spongy coats (fruits) were found to accumulate much more Na+ and Cl- than seeds (up to aprox. 8- and 11- fold, respectively for Na+ and Cl-), indicating that efficient mechanisms may take place in order to protect seeds from the harmful accumulation of salt. In addition, the higher selectivity for K+ vs. Na+ within seeds as compared to fruits seemed to be a determining factor in germination capacity of this species.

Assessing the Ergonomic Benefits of a New Adjustable Forklift Backrest

2020 ◽  
Vol 64 (1) ◽  
pp. 976-980
Author(s):  
Pranav Madhav Kuber ◽  
Ehsan Rashedi
Keyword(s):  
Comparative Study ◽  
Motion Capture ◽  
Center Of Pressure ◽  
Body Movement ◽  
Pressure Change ◽  
Motion Capture System ◽  
Design Features ◽  
Wide Range ◽  
Body Sizes ◽  
The Mean

A new forklift backrest has been developed by incorporating adjustability concepts into the design to facilitate comfort to a wide range of users. We have conducted a comparative study between the new and original backrests to assess the effectiveness of design features. Using the phenomenon of restlessness, discomfort of the user was associated with the amount of body movement, where we have used a motion- capture system and a force platform to quantify the individuals’ movement for a wide range of body sizes. Meanwhile, subjective comfort and design feedback were collected using a questionnaire. Our results showed a reduction in the mean torso movement and the maximum center of pressure change of location by 300 and 6 mm, respectively, for the new design. Taking advantage of adjustability feature, the new backrest design exhibited enhanced comfort for longer durations and reduced magnitude of discomfort for a wide range of participants’ body sizes.

Le fonti, i metodi e le narrazioni della storia della videoarte in Italia negli anni Settanta

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Lisa Parola
Keyword(s):  
Comparative Study ◽  
Contemporary Art ◽  
Narrative Structure ◽  
Video Art ◽  
Wide Range ◽  
History Of ◽  
Selection For ◽  
The Many ◽  
Art And Architecture ◽  
Selection Of

This essay derives from the primary need to make order between direct and indirect sources available for the reconstruction of the history of video art in Italy in the seventies. In fact, during the researches for the Ph.D. thesis it became clear that in most cases it is difficult to define, in terms of facts, which of the different historiographies should be taken into consideration to deepen the study of video art in Italy. Beyond legitimate differences of perspectives and methods, historiographical narratives all share similar issues and narrative structure. The first intention of the essay is, therefore, to compare the different historiographic narratives on Italian video art of the seventies, verifying their genealogy, the sources used and the accuracy of the narrated facts. For the selection of the corpus, it was decided to analyze in particular monographic volumes dealing with the history of the origins of video art in Italy. The aim was, in fact, to get a wide range of types of "narrations", as in the case of contemporary art and architecture magazines, which are examined in the second part of the essay. After the selection, for an analytical and comparative study of the various historiography, the essay focuses only on the Terza Biennale Internazionale della Giovane Pittura. Gennaio ’70. Comportamenti, oggetti e mediazioni (Third International Biennial of Young Painting. January '70. Behaviors, Objects and Mediations, 1970, Bologna), the exhibition which - after Lucio Fontana's pioneering experiments - is said to be the first sign of the arrival of videotape in Italy (called at the time videorecording), curated by Renato Barilli, Tommaso Trini, Andrea Emiliani and Maurizio Calvesi. The narration given so far of this exhibition appeared more mythological than historical and could be compared structurally to that of the many numerous beginnings that historiographyies on international video art identify as ‘first’ and ‘generative’. In the first part of the essay the 'facts' related to Gennaio ’70, as narrated by historiography on video art, are compared. In the second part the survey is carried out through some of the direct sources identified during the research, with the aim of answering to questions raised by the comparison between historiographies. Concluding, it is important to underline that the tapes containing the videos transmitted have not been found and seem to have disappeared since the ending of the exhibition. Nevertheless, the deepening of the works and documentation transmitted during the exhibition is possible thanks to other types of sources which give us many valuable information regarding video techniques and practices at the beginning of 1970 in Italy.

scholarly journals The Influence of Salt Solution on Morphological Changes in a Geosynthetic Clay Liner

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Mochamad Arief Budihardjo
Keyword(s):  
Salt Solution ◽  
Morphological Changes ◽  
Microscopic Analysis ◽  
Optical Microscope ◽  
Distilled Water ◽  
Nacl Solution ◽  
Geosynthetic Clay Liner ◽  
Clay Liner ◽  
Morphological Variations ◽  
Crystal Deposit

Morphological variations of geosynthetic clay liner (GCL) samples, hydrated with two different permeates, distilled water and NaCl solution (100 mM concentration), were observed in detail using microscopic analysis. After the GCL samples were hydrated with the NaCl solution, they were observed with an optical microscope. While the surface of the treated GCL samples was similar to the surface of the untreated GCL, a crystal deposit was found on the surface of the treated samples. Using a scanning electron microscope (SEM), a more solid appearance was observed for the bentonite particles contained in the GCL after the sample was hydrated with distilled water in comparison to the GCL sample that was hydrated with the NaCl solution. It appears that salt solution hydration results in less swelling of the bentonite particles. Furthermore, the energy-dispersive X-ray spectrometer (EDS) results showed that distilled water hydration had no effect on the distribution of the elements contained in the GCL samples. However, bound chlorine was observed, which demonstrated that the bentonite particles had absorbed the NaCl solution. In addition, changes in the hydraulic conductivity of the hydrated GCL samples were also observed.

Integration of heat recirculating microreactors with thermoelectric modules for power generation: A comparative study using CFD

2021 ◽  
Author(s):  
Neha Yedala ◽  
Niket S. Kaisare
Keyword(s):  
Power Generation ◽  
Comparative Study ◽  
Thermoelectric Generator ◽  
Operating Conditions ◽  
Thermoelectric Modules ◽  
Wide Range

Heat recirculating microreactors are being investigated for coupling with thermoelectric generator (TEG) for power generation since they facilitate sustained combustion over a wide range of operating conditions. A major challenge...

Comparative Study Dynamics of Psychology of Pencak Silat Groups (Iks.Pi Kera Sakti, Persaudaraan Setia Hati Terate, Dan Pagarnusa)

2013 ◽  
Vol 1 (1) ◽  
pp. 114-119
Author(s):  
Imam Muzakky ◽  
Dwi Umi Novitasari ◽  
Siti Hamidah
Keyword(s):  
Comparative Study ◽  
Research Methods ◽  
Martial Arts ◽  
Quantitative Approach ◽  
High Type ◽  
Tolerance Level ◽  
Low Level ◽  
Empirical Paper ◽  
Wide Range ◽  
High Level

Indonesia as a country that offers a wide range of diversity offers its own uniqueness. But unfortunately the diversity it also has the potential for conflict ( Rahardjo , 2010) . Not only the conflict between cultures and groups, as happened in intercollegiate martial arts such as pagarnusa, PSHT and Kerasakti. Objective The purpose of this study to determine the level of aggressiveness, collective pride and tolerance in three martial arts college , this is one of the factors of conflict is high aggressiveness, collective pride and a low level of tolerance. Methodology/Technique The study involved 30 members pagarnusa , 30 members and 30 members kerasakti PSHT . Research methods with quantitative approach. Findings – The findings of this study are a group of college kerasakti have the highest tolerance, low aggression and collective pride being. PSHT has a high level of aggressiveness being and collective tolerance pride being, while the pagarnusa Group aggressiveness levels that are low tolerance level and collective pride high. Findings The findings of this study are a group of college kerasakti have the highest tolerance, low aggression and collective pride being. PSHT has a high level of aggressiveness being and collective tolerance pride being, while the pagarnusa Group aggressiveness levels that are low tolerance level and collective pride high. Type of Paper Empirical paper Keywords: Martial Arts, Aggressiveness, Tolerance , Collective Pride

scholarly journals Mineral content of different bottled water available in Bangladesh: Assessment of their compliance with current regulations

2013 ◽  
Vol 38 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Mohammad Arifur Rahman ◽  
Md Abdus Salam ◽  
Abdus Salam ◽  
Madhusudan Roy ◽  
Nargis Jahan Ara ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Mineral Content ◽  
Bottled Water ◽  
Human Consumption ◽  
Distilled Water ◽  
Mineral Contents ◽  
Lead And Cadmium ◽  
Council Directive ◽  
Guideline Values ◽  
The University

Nine bottled water brands collected from retail shops and food shops beside the University of Dhaka were analyzed for their major and trace element constituents to ascertain their suitability for human consumption. The results obtained were compared with parametric values (PVs) set by European Community Council Directive 98/83/EC and the guideline values (GVs) recommended by WHO. It was found that the majority of the brands tested were low in mineral contents. Moreover, lower values of hardness, TDS and conductivity than the prescribed limits of WHO showed that water was deficient in essential minerals. Minerals like magnesium, potassium, calcium were present in some cases in such a low concentration that water seemed to be as good as distilled water. In case of heavy metals, only lead and cadmium were found to be below the detection limit (0.001 mg/L) which indicates bottled water brands are better for drinking. DOI: http://dx.doi.org/10.3329/jasbs.v38i1.15316 J. Asiat. Soc. Bangladesh, Sci. 38(1): 7-15, June 2012

Drinking Desalinated Water that Lack Calcium and Magnesium Has No Effect on Mineral Content of Enamel and Dentin in Primary Teeth

2020 ◽  
Vol 44 (1) ◽  
pp. 47-51
Author(s):  
Avia Fux Noy ◽  
Uri Zilberman ◽  
Noa Regev ◽  
Moti Moskovitz
Keyword(s):  
Ground Water ◽  
Mineral Content ◽  
Primary Teeth ◽  
Statistical Significance ◽  
Ion Content ◽  
Mineral Contents ◽  
X Ray ◽  
Desalinated Water ◽  
Calcium And Magnesium ◽  
Scanning Electron

Objective: The present study compared the mineral contents of enamel and dentin of primary teeth from children exposed to desalinated water with those from children drinking ground water. Study design: The study comprised of two groups of teeth, seven primary teeth from children living in areas supplied exclusively with desalinated water and seven primary teeth from children that have been exposed solely to ground water from in-utero until the teeth were either extracted or naturally shed. Mineral content of three tooth regions was determined by scanning electron microscopy with an energy dispersive X-ray spectrometer (EDS). The main ion content of each region was calculated. Results: Children exposed to ground water presented higher levels of magnesium in pre- and post- natal enamel than children living in areas supplied exclusively with desalinated water but without significant differences. The same was found for calcium levels. Excluding post-natal enamel calcium level (of borderline statistical significance), no significant differences were found in magnesium and calcium levels of primary teeth enamel and dentin of children exposed to desalinated water in comparison to children exposed to ground water. Conclusion: Mineral content of enamel and dentin in primary teeth is not affected by consuming desalinated water.

Ecology of the rare but irruptive Pilliga mouse, Pseudomys pilligaensis. III. Dietary ecology

2010 ◽  
Vol 58 (2) ◽  
pp. 85 ◽  
Author(s):  
Hideyuki Tokushima ◽  
Peter J. Jarman
Keyword(s):  
Reproductive Rate ◽  
Wild Fire ◽  
Faecal Samples ◽  
Wide Range ◽  
Different Seasons ◽  
Dietary Ecology ◽  
Protein Rich ◽  
Diverse Plant Species ◽  
Diverse Plant ◽  
Seeds And Fruits

The diet of the Pilliga mouse, Pseudomys pilligaensis, was analysed from 430 faecal samples collected from ~340 individuals across different seasons over a period of five years that included a wild fire and subsequent irruption and sharp decline of the population. The primary food items in all seasons were seeds and fruits from diverse plant species, but the mice also consumed a wide range of other foods, including leaves, invertebrates, fungi and mosses. Invertebrates, the second most abundant type of food item, were eaten in all seasons but, with fungi, increased in winter and spring when consumption of seeds and fruits declined. Mice consumed significantly more fungi and mosses before the wild fire than after it. Diets differed between sites rather little in the proportions of food categories, but greatly in the relative proportions of particular seed types in the seed+fruit category. The population irruption could have been triggered by a high reproductive rate that coincided with higher consumption by females of protein-rich foods such as invertebrates and fungi. Population density collapsed at sites as soil stores of utilisable seeds became depleted, mice surviving where their diet could remain diverse.

Seed yield and nutritive value of dry, mature subterranean clover (Trifolium subterraneum L.)

2001 ◽  
Vol 41 (2) ◽  
pp. 169 ◽  
Author(s):  
Y. J. Ru ◽  
J. A. Fortune
Keyword(s):  
Seed Yield ◽  
Dry Matter ◽  
Mineral Content ◽  
Nutritive Value ◽  
Subterranean Clover ◽  
Zinc Content ◽  
Trifolium Subterraneum ◽  
Crude Fibre ◽  
Dry Matter Digestibility ◽  
Wide Range

The nutritive value of 26 cultivars of dry, mature subterranean clover was evaluated at Shenton Park, Perth, Western Australia. The cultivars were divided into 3 maturity groups according to flowering time and each cultivar was sown in blocks comprising 4 replicates. The plots were grazed by sheep at 2-week intervals during the growing season. Dry mature plant material and soil were sampled in summer to examine the effect of grazing and cultivar on seed yield and nutritive value of feed residues. Cultivars heavily grazed in spring had a low herbage mass. There was no difference in seed yield and seed weight between heavily and lightly grazed cultivars. Dry matter digestibility and mineral content of dry residues was inconsistent for the 2 grazing treatments. The dry matter digestibility of dry, mature subterranean clover ranged from 40 to 56%, with a wide range of crude fibre, nitrogen and mineral content for the 26 cultivars. While most minerals in the dry residues were above the requirement for sheep, 7 cultivars had a zinc content less than the maintenance requirement for sheep. There was an imbalance for all cultivars in calcium: phosphorus with a range of 4–10: 1. Concurrent estimates on the yield and composition of seed indicated that seed can be resource of minerals for grazing animals in summer. Most cultivars had a seed yield over 100 g/m2 with that of 9 cultivars being over 130 g/m2. Seed was rich in nitrogen, sodium, phosphorus, potassium, magnesium, zinc and copper, and poor in sodium, calcium and manganese. However, there were no cultivars with an appropriate ratio of calcium and phosphorus. The imbalance in nitrogen and sulfur was a result of high nitrogen content with the ratio ranging from 19: 1 to 29: 1.

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