scholarly journals Emergence of a new salt-tolerant alien grass along roadsides? Occurrence of Diplachne fusca subsp. fascicularis (Poaceae) in Hungary

2021 ◽  
Vol 80 (2) ◽  
Author(s):  
Kristóf Süveges ◽  
Attila V. Molnár ◽  
Attila Mesterházy ◽  
Júlia Tüdősné Budai ◽  
Réka Fekete
Keyword(s):  
Salt Content ◽  
Rice Paddy ◽  
Salt Tolerant ◽  
The Road ◽  
Reproduction Strategy ◽  
Temporal And Spatial Variability ◽  
Nacl Concentration ◽  
Negative Effect ◽  
Hungarian Population ◽  
Paved Road

This paper reports the occurrence of a North American salt-tolerant taxon, Diplachne fusca subsp. fascicularis (Lam.) P.M.Peterson et N.Snow in Hungary (Central-Europe). Two earlier Hungarian observations of D. fusca were known from 1915, near Győr (West Transdanubia), later the taxon was collected by Pénzes in 1958, in downtown Budatétény (central Hungary. Both observations seem to be occasional. Recently, the taxon has started spreading in Europe, mainly on rice paddy fields, with a serious invasion potential. In North America its appearance on ruderal habitats, as well as along roads and other linear infrastructures is a well known phenomenon. The Hungarian population was found near Cegléd (Central Hungary) on the roadside of the E40 primary main road in September 2018. In July 2019 more than one thousand (mostly vegetative) individuals were detected. The salt content of the habitat shows remarkable temporal and spatial variability. At one meter distance from the edge of the paved road soil salt content was higher in spring (after the winter de-icing regime), than in autumn. Salt concentration was highest in the vicinity of the road, and decreased with increasing distance from it. Germination tests revealed a significant negative effect of NaCl concentration on germination rates, but germination occurred even on extremely saline substrates with 1.5% NaCl concentration. Considering its biology and reproduction strategy, the further spread of Diplachne fusca is highly presumable.

Organization of Therapeutic Nutrition in a Complex of Therapeutic Measures for Acute Glomerulonephritis

2020 ◽  
pp. 14-20
Author(s):  
Elena Vitalievna Perminova
Keyword(s):  
Salt Content ◽  
The Body ◽  
Acute Glomerulonephritis ◽  
Dietary Recommendations ◽  
Excretory Function ◽  
Special Diet ◽  
Organization Of Care ◽  
Negative Effect ◽  
Therapeutic Measures ◽  
High Incidence Rate

Organization of care for patients with glomerulonephritis is a rather urgent problem today, due to the high incidence rate and the tendency to progression of renal dysfunction. When discussing treatment issues, it is necessary to pay attention to the fulfillment of three basic requirements for patients, which include normalization of the life regime (in particular, the exclusion of night work, avoiding stressful situations and heavy physical activity when having high blood pressure), the implementation of certain dietary recommendations and prolonged drug treatment [3]. Diseases of the kidneys as the main organ, the affection of which leads to a deterioration of excretory function, require a special diet with a restriction of a number of products. Against the background of glomerulonephritis disruption of the process of glomerular filtration, which in some cases leads to the development of renal failure, it is necessary to reduce the intake of food substances that can have a negative effect on the body — alcohol, smoked meats, spicy, salty foods, preserves, sausages, foods with high protein and salt content. Moreover, one should also take control of the amount of fluid consumed and ensure compliance with the frequency and regularity of food intake.

Research and Analysis of the Sources of Emission of Respirable Fraction of Dust at the Coal Mines

2021 ◽  
pp. 65-70
Author(s):  
G.I. Korshunov ◽  
◽  
A.M. Safina ◽  
A.M. Karimov ◽  
◽  
...  
Keyword(s):  
Dust Emission ◽  
Dust Content ◽  
Open Pit ◽  
Fine Dust ◽  
Mining Equipment ◽  
Length Of Service ◽  
The Road ◽  
Urgent Task ◽  
Negative Effect ◽  
Dust Load

At the deposits of the Krasnoyarsk Territory, the actual concentration of the suspended dust is 60–83 mg/m3. The search for efficient ways of reducing dust emission and dust suppression remains an urgent task, since fine dust has a negative effect on the health of enterprise employees and on mining equipment reducing its service life. Full-scale measurements were conducted related to the dust content and dispersed composition of the aerosols. The dust content was measured by counting method with the use of CEM DT-9880 dust particle counter. The measurements were conducted at the points located at different distances from the road of the section. The content of the most dangerous fraction PM2.5 was 48 % of the total amount of fine dust or 30–40 mg/m3, while the maximum permissible concentration for this fraction is 0.16 mg/m3. The employees who constantly work near the automotive haul roads and the ruins of an exploded rock mass are exposed to the strongest effects of dust emissions on the respiratory organs. To reduce the dust load on the employees of the mining enterprise, it is most appropriate to deal primarily with the dust emitted from the open pit roads, since this will help to reduce the dust load by 30–40 %. The permissible length of service for the operator of the loading equipment of one of the open-pit mines of the Krasnoyarsk Territory was calculated: it will be 9 years, and not 17, as was obtained earlier — without considering the actual content of the respirable dust. With the most rational parameters of drilling and blasting operations and using all methods to reduce dust formation, it is possible to reduce the dust emission by 15–20 %.

A new Republican temple on the via Appia, at the borders of Rome's urban space

2016 ◽  
Vol 29 ◽  
pp. 327-347
Author(s):  
Rachele Dubbini
Keyword(s):  
Urban Space ◽  
Sewer System ◽  
The Road ◽  
Republican Era ◽  
History Of ◽  
Paved Road

On May 27, 1970, during construction of the Caffarella sewer system which was to serve new districts in the sprawling suburbs of Rome, the Municipality of Rome alerted the Soprintendenza to the discovery of some ancient structures near the via Appia.The area affected by the passage of the sewer system lies just beyond the Almo river, between the Appia's first and second mile, in a place where, at the end of the 19th c., P. Cartoni built a rather large barn for his estate (vigna). On the W side of the road, excavators discovered a concrete pedestal reveted with tuff blocks that was interpreted as the foundation of a sepulchral monument, the ruderatio of the via Appia, and a secondary paved road leading southeast, as published by L. Spera (see fig. 1, trench A). However, the excavations on the E side of the via Appia have never been published. The aim of this paper is to describe and interpret the remarkable discovery. My examination of documentation stored in the archives of the Soprintendenza identified photographs and sketches of the 1970 excavation, providing evidence for the existence of a Republican-era monumental architectural complex situated behind the barn of Vigna Cartoni. Since it was impossible unfortunately to locate any written reports, the research was based mostly on illustrations and administrative documents, but a fairly accurate history of the excavation could be reconstructed based on the latter.

scholarly journals SUBSTANTIATION OF CHOICE OF VEGETABLE CROPS SUITABLE FOR GROWING ON SALTED SOILS

2020 ◽  
Vol 5 (4(73)) ◽  
pp. 12-18
Author(s):  
G.T. Bekmirzaev ◽  
I.A. Begmatov ◽  
D.B. Yulchiev
Keyword(s):  
Experimental Study ◽  
New Zealand ◽  
Salt Content ◽  
Vegetable Crops ◽  
Agricultural Systems ◽  
Salt Tolerant ◽  
As Species ◽  
High Salt Content ◽  
The University ◽  
Selection Of

The purpose of the experimental study was the selection of salt tolerant crops and the search for useful horticultural species for growing them on saline lands. The experimental study was conducted at the University of Algarve, Portugal, in a greenhouse. The following vegetable crops were selected for research: lettuce (Lactuca sativaL), New Zealand spinach (Tetragonia tetragonioides) and garden purslane (Portulaca oleracea). Experimental results showed that New Zealand spinach and garden purslane have high potential as species resistant to high salt content and are therefore recommended for cultivation in order to reduce soil salinity. The above crops, mainly New Zealandspinach, are good types of garden crops with high useful qualities and productivity. Therefore, it has been shown that this method is a clean and environmentally friendly tool to prevent salinization and maintain the sustainability of agricultural systems

Evaluation of the Long-Term Performance of Woven Geotextile Used between Base Course and Subgrade of a Paved Road

2019 ◽  
Vol 2673 (8) ◽  
pp. 310-321 ◽  
Author(s):  
Saad Ullah ◽  
Burak F. Tanyu ◽  
Erol F. Guler ◽  
Edward J. Hoppe ◽  
Emre Akmaz
Keyword(s):  
Transportation Network ◽  
Experimental Program ◽  
The Road ◽  
Low Volume Roads ◽  
Road Profile ◽  
Low Volume ◽  
Base Course ◽  
Virginia Department ◽  
Paved Road ◽  
Term Performance

The purpose of this research was to investigate the properties of the exhumed geotextile from a low-volume road on the Virginia Department of Transportation network. The exhumed geotextiles have been in service for 23 years, which provided an opportunity to evaluate the longevity of the materials as well as to make assessments of how it relates to the changes in material properties. During this investigation, subgrade and base course materials were also obtained from the same site and an experimental program was developed to evaluate the effectiveness of the exhumed geotextiles for separation, stabilization, and filtration for the base course thicknesses of 4, 6, and 8 in. The results from this study combined with the results from the previous studies conducted at the same site showed that when the geotextile is placed between the subgrade and base course, the thinner the pavement section, the more evident the effectiveness of the geotextile improvements. One important finding of this research was that the placement of a geotextile reduced the particle breakage caused by abrasion under the applied transient loads. This was observed as a stabilization effect of the geotextile inclusion. As a general conclusion, for low-volume roads with relatively thin pavement sections, properly selected geotextiles provide benefits for separating the subgrade and base course (minimizing pumping), filtering infiltrated or ground water, and stabilizing the road profile. These benefits become more apparent when the thickness of the base course is less than 8 in.

Sensitivity of Photosystems II to NaCl in Relation to Salinity Tolerance. Comparative Studies With Thylakoids of the Salt Tolerant Mangrove, Avicennia marina, and the Salt-Sensitive Pea, Pisum sativum

1986 ◽  
Vol 13 (5) ◽  
pp. 689 ◽  
Author(s):  
MC Ball ◽  
JM Anderson
Keyword(s):  
Photosystem Ii ◽  
Pisum Sativum ◽  
Avicennia Marina ◽  
Salt Tolerant ◽  
Chl A ◽  
Fluorescence Characteristics ◽  
Nacl Concentration ◽  
Induced Changes ◽  
Oxygen Evolving ◽  
Species Being

The sensitivity of photosystem II to NaCl was compared in thylakoids isolated from the salt-tolerant mangrove, Avicennia marina, and the salt-sensitive pea, Pisum sativum. There were no indications of fundamental differences in photosystem II between these two species. Rates of oxygen evolution declined linearly with increase in NaCl from 10 to 500 mol m-3, with both species being equally sensitive. The NaCl-induced changes in Chl a fluorescence characteristics of intact thylakoids were substantially reversed by addition of hydroxylamine, indicating that the water-oxidizing site of photosystem II is sensitive to the NaCl concentration. These results are consistent with NaCl-induced depletion of the 23 and 17 kDa proteins from photosystem II-enriched membrane sheets. While the inhibition of oxygen-evolving activity by 500 mol m-3 NaCl was substantially reversed in thylakoids kept in the dark, 500 mol m-3 NaCl induced marked photoinhibitory damage in illuminated thylakoids. Thus, accumulation of ions in the chloroplasts of either salt-tolerant or salt-sensitive species would probably result in rapid damage to photosystem II, particularly in the light.

scholarly journals Accurate whole-night sleep monitoring with dry-contact ear-EEG

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Kaare B. Mikkelsen ◽  
Yousef R. Tabar ◽  
Simon L. Kappel ◽  
Christian B. Christensen ◽  
Hans O. Toft ◽  
...  
Keyword(s):  
High Performance ◽  
Well Being ◽  
Extensive Study ◽  
Sleep Monitoring ◽  
The Road ◽  
Scalp Eeg ◽  
Dry Contact ◽  
Negative Effect ◽  
On The Road

AbstractSleep is a key phenomenon to both understanding, diagnosing and treatment of many illnesses, as well as for studying health and well being in general. Today, the only widely accepted method for clinically monitoring sleep is the polysomnography (PSG), which is, however, both expensive to perform and influences the sleep. This has led to investigations into light weight electroencephalography (EEG) alternatives. However, there has been a substantial performance gap between proposed alternatives and PSG. Here we show results from an extensive study of 80 full night recordings of healthy participants wearing both PSG equipment and ear-EEG. We obtain automatic sleep scoring with an accuracy close to that achieved by manual scoring of scalp EEG (the current gold standard), using only ear-EEG as input, attaining an average Cohen’s kappa of 0.73. In addition, this high performance is present for all 20 subjects. Finally, 19/20 subjects found that the ear-EEG had little to no negative effect on their sleep, and subjects were generally able to apply the equipment without supervision. This finding marks a turning point on the road to clinical long term sleep monitoring: the question should no longer be whether ear-EEG could ever be used for clinical home sleep monitoring, but rather when it will be.

Pattern Abrasion and Other Mechanisms of Wear of Tank Track Pads

1992 ◽  
Vol 65 (1) ◽  
pp. 154-175 ◽  
Author(s):  
A. I. Medalia ◽  
A. L. Alesi ◽  
J. L. Mead
Keyword(s):  
Wear Rate ◽  
Surface Pattern ◽  
The Road ◽  
Test Conditions ◽  
Ridge Height ◽  
Standard Compound ◽  
Mode Of Failure ◽  
Cross Country ◽  
Eventual Loss ◽  
Paved Road

Abstract Wear of tank track pads has been studied under different conditions. With T142 pads tested on an M-60 tank, the mode of failure was found to depend on the test conditions. Among eighteen experimental compounds tested, improved wear (vs. the standard compound) under one test condition was generally at the expense of poorer wear under one or both of the other test conditions. However, in agreement with previous results, an HNBR/Zn-methacrylate/peroxide compound gave improved wear rate under all three test conditions. Wear of the T142 pads on a hilly cross-country course and on a combination course was generally by massive chunking. On a paved road course, most compounds wore by pattern abrasion. A few compounds worn on this course formed deep pockets parallel to the surface, resulting in the eventual loss of the large flaps between the pocket and the surface. Pattern abrasion was also found on T156 pads of four different compounds, tested on an M-1 tank on the paved road course. The abrasion patterns of both types of pads had a shingled appearance, with the ridges pitched so as to bite into the road surface. The abrasion patterns were characterized quantitatively by profilometry, using standard parameters calculated for surface roughness of metals and other materials. The ridge height and its ratio to ridge spacing correlated positively with wear rate on the paved road; whereas there was no correlation of ridge spacing with wear rate. The compounds which gave the lowest wear rate on the paved road, including the HNBR compounds, gave shallow ridges with little or no pattern.

scholarly journals Identification of salt tolerant barley genotypes for coastal region of Bangladesh

1970 ◽  
Vol 36 (2) ◽  
pp. 151-155 ◽  
Author(s):  
MR Ali ◽  
M Shalim Uddin ◽  
Shamim Ara Bagum
Keyword(s):  
Grain Yield ◽  
Coastal Region ◽  
Salt Tolerant ◽  
Hordeum Vulgare L ◽  
Commercial Cultivation ◽  
Experimental Variation ◽  
Nacl Concentration ◽  
Saline Area ◽  
Normal Soil ◽  
Barley Genotypes

Identification of salt tolerant barley (Hordeum vulgare L.) genotypes and effects of different levels of salinity on their growth, grain development and yield were studied. One hundred and eighty nine barley germplasms were subjected in five levels of NaCl concentration which were equivalent to Electrical Conductivity (EC) of 0, 10, 15, 20 and 25 ds/m. Among the genotypes 39 proved to be saline tolerant at 15 ds/m of salinity. Out of 39 genotypes, 33 were evaluated at Sonagazi and Patuakhali salt area of Bangladesh. All the genotypes were evaluated in the non-saline area at BARI, Gazipur to observe their performance in normal soil. Highest grain yield was recorded from the genotypes BSH-32 and BSH-142 over the three locations. Significantly higher yield was recorded from the experimental site of Gazipur followed by Patuakhali and Sonagazi. Tiller per plant had positive correlation with grain per spike, maturity and grain yield. Grain per spike and maturity was positively correlated with grain yield. From the multivariate analysis it appears that 1st, 2nd and 3rd principal components together account for 79 per cent of the total experimental variation. The two selected genotypes are expected to be released for commercial cultivation in the saline area of Bangladesh.       Key words: Barley, Genotypes, Selection, Salt tolerant, Bangladesh DOI = 10.3329/bjb.v36i2.1504 Bangladesh J. Bot. 36(2): 151-155, 2007 (December)

scholarly journals Survival of Pseudomonas extremorientalis TSAU20 and P. chlororaphis TSAU13 in the rhizosphere of common bean (Phaseolus vulgaris) under saline conditions

2011 ◽  
Vol 57 (No. 3) ◽  
pp. 122-127 ◽  
Author(s):  
D. Egamberdieva
Keyword(s):  
Common Bean ◽  
Shoot Growth ◽  
High Salinity ◽  
Salt Content ◽  
Shoot Length ◽  
Root Tip ◽  
Saline Condition ◽  
Bacterial Strains ◽  
Nacl Concentration ◽  
Salinity Levels

The abilities of Pseudomonas extremorientalis TSAU20 and P. chlororaphis TSAU13 to colonise and survive in the rhizosphere of common bean under saline conditions were studied. Four salinity levels (5.0, 7.5, 10.0, and 12.5 dS/m) were maintained in the gnotobiotic system using NaCl salt. Results showed that with increasing salt content root-tip colonization of both bacterial strains was reduced. Both bacterial treatments used in the study increased root and/or shoot length compared to non-treated plants at each NaCl concentration tested, whereas shoot growth was not stimulated at high saline condition (12.5 dS/m). In conclusion, the results of this study indicated that P. extremorientalis TSAU20 and P. chlororaphis TSAU 13 have the ability to survive in ecologically stressed conditions, such as saline and nitrogen deficient soils, and may positively effect on plant growth of bean. High salinity inhibited their colonisation in the rhizosphere of bean and thus their stimulatory effect on plants was also reduced.

Sign in / Sign up

Export Citation Format

Share Document