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Number of results: 6
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Abstract

According to the Water Framework Directive 2000/60 EC, the river basin is the basic unit for integrated water management at the basin level. In this sense, the knowledge of the morphometric parameters of the river takes on special importance. Morphometric analysis helps in understanding the geo-hydrological characteristics of a river basin. Various authors point out that the morphometric analyses of a drainage watershed demonstrate the dynamic equilibrium that has been achieved due to the interaction between matter and energy. The analysis of morphometric parameters also facilitates and helps to understand the hydrological relations of the basin. This paper deals with the morphometric analysis of sub-basins in the Klina River basin which is located in the northeastern part of the Dukagjini depression. To determine the morphometric parameters in the Klina River basin, the digital relief model from the Advanced Land Observation Satellite (ALOS) platform with a resolution of 20 × 20 m and the ArcMap 10.5 software were used. The results reveal that the total number of streams is 753 of which 602 are 1<sup>st</sup> order streams, 119 – 2<sup>nd</sup> order, 23 – 3<sup>rd</sup> order, 6 – 4<sup>th</sup> order, 2 – 5<sup>th</sup> order, and 1 – 6<sup>th</sup> order streams. The mean bifurcation ratio is 3.81, drainage density is 1.52 km∙km<sup>–2</sup>. The data and information presented in this study will be helpful and interesting in the plan of the management of Klina River basin which covers an area of 477 km<sup>2</sup> within which is estimated to live about 100,000 inhabitants.

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Authors and Affiliations

Hazir Çadraku
1
ORCID: ORCID
Xhesika Hasa
2

  1. University for Business and Technology, Faculty of Civil Engineering and Infrastructure, Lagjja Kalabria, 10000 Prishtine, Republic of Kosovo
  2. Kosovo Energy Corporation J.S.C., Department of Geodesy, Prishtine, Republic of Kosovo
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Abstract

Accumulation of LaCl3, a well-known Ca2+-channel blocker, can inhibit plant growth. However, the current understanding of its effects on gene expression is limited. In this paper, different concentrations of LaCl3 (0, 0.5, 1.0, 1.5, 2.0 mM) were used to treat germinated wheat ( Triticum aestivum L.) seeds for 24 h. The degree of root growth inhibition gradually increased with increasing LaCl3 concentration. qRT-PCR analysis revealed that the expression of several key genes related to the cell cycle process, such as pcna, mcm2, rdr and cyclin B, were significantly down-regulated. Further analysis of genomic DNA instability using Random Amplified Polymorphic DNA (RAPD) and methylation levels by Coupled Restriction Enzyme Digestion-Random Amplification (CRED-RA) analysis indicated a significant increase in genomic DNA polymorphisms and methylation levels. The results of this study verified that the reasons why LaCl3 treatment can inhibit the growth of wheat roots are as follows: interference in the normal progression of the cell cycle, induction of genomic DNA instability and increase in DNA methylation levels.
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Authors and Affiliations

Xia Lei
1
Keshi Ma
2
Feixiong Zhang
1

  1. College of Life Sciences, Capital Normal University, Beijing 100048, China
  2. College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou City, Henan Province, 466001, China
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Abstract

On the basis of T/S measurements water masses were differentiated and geostrophic currents were drawn. It was stated, that the Weddell Sea waters filled a major part of Bransfield Strait from the southeast to Trinity Island on the west. Waters originating from Bellingshausen Sea occurred in the western and northern part of the research area and along the southern coasts of Shetlands. The direction of the geostrophic current is from the southwest to the northeast with a branch in the south at the top of the Antarctic Peninsula.

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Authors and Affiliations

Alfred Grelowski
Ryszard Tokarczyk
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Abstract

The paper exemplifies chosen textual variants extant in Qur’an versions in the Islamic world, focusing on printed readings according to Ḥafṣ ʿan ʿĀṣim and Warš ʿan Nāfiʿ, against the historical background of Ibn Muǧāhid’s qirā’āt reform (10th century C.E.). The studied issue is part of and sheds light on a broader problem – the quest after elaborating a critical text edition of the Qur’anic text based on the oldest and best manuscripts. The preliminary conclusion is that neither Ibn Muǧāhid nor the oldest, surviving works by Muslim scholars devoted to the Qur’anic qirā’āt did actually record the factual state of the oral tradition from the 7th century, but that the variants of the oral tradition as codified in the 10th century have their origin only in the late written tradition (probably also only from the 10th century, possibly not much older).
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Authors and Affiliations

Marcin Grodzki
1
ORCID: ORCID

  1. University of Warsaw, Poland
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Abstract

The study was aimed to determine the hydrodynamic of water seepage through a porous bed saturated with different amounts of high viscosity liquids. An attempt was made to describe the process of seepage through beds saturated with oils using the theory of outflow of a liquid from the tank. It was assumed that the discharge coefficient will represent changes of flow resistance during the process. It was found that the dependence of this factor on time is linear. In the second part of this work kinetics of the seepage process was investigated. Dependence of oil concentrations, eluted from the deposit with the flowing water, on time has been evaluated. Thanks to these studies it was possible to determine the effectiveness of an elution of high viscosity liquids from porous beds using water as the washing out liquid.

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Authors and Affiliations

Jerzy Sęk
Mariola Błaszczyk
Michał Bartos
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Abstract

The paper discusses a two-machine flow shop problem with minimization of the sum of tardiness costs, being a generalization of the popular NP-hard single-machine problem with this criterion. We propose the introduction of new elimination block properties allowing for accelerating the operation of approximate algorithms of local searches, solving this problem and improving the quality of solutions determined by them.

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Authors and Affiliations

W. Bożejko
M. Uchroński
M. Wodecki

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