scholarly journals Changes in the Water Resources of Selected Lakes in Poland in the Period 1916–2020 as Information to Increase Their Availability

2021 ◽  
Vol 13 (13) ◽  
pp. 7298
Author(s):  
Mariusz Ptak ◽  
Adam Choiński ◽  
Mariusz Sojka ◽  
Senlin Zhu

The historical effects of land development on water management currently require a new approach, in many cases involving attempts at the restoration of the quasi-natural state. This is evident in reference to many regions in Poland, where the hydrographic network has been diminishing over the centuries, among others in favour of obtaining new agricultural land. Such activities overlap with natural processes causing transformations of the hydrosphere. The most serious problems currently include water deficits resulting from climate change and human activity. This paper employed archival bathymetric maps from the beginning of the 20th century for the determination of the scale of changes in the morphometric parameters of six lakes in western Poland. It was determined that over a period of more than a hundred years, the surface area (12.2%) and original volume of water bodies (13.9%) were largely reduced. This situation was caused by both natural (overgrowing and shallowing) and anthropogenic (change in water level) factors. The obtained information points to the need of an inventory of historical bathymetric maps of lakes. In combination with modern research, this will allow for the determination of changes in the water resources of lakes and, in a longer-term perspective, potential possibilities of their renaturisation. This knowledge is important in the context of the reconstruction of water resources in the territory of Poland, where their deficits are recorded increasingly frequently. It should also be emphasised that the restoration of the natural capacity of water retention in lakes is a more economical solution and, most importantly, it is not invasive for the environment.

2021 ◽  
Vol 937 (4) ◽  
pp. 042077
Author(s):  
Ya Zaitseva ◽  
N Radchevsky

Abstract The paper discusses the most important property of the land – soil fertility, which characterizes it as a productive force and the main means of production, as well as a price-forming factor. This ability is the main specific feature of agricultural land. Fertility is understood as the ability of the soil to provide a crop, the level of which depends on the objective properties of the soil itself, climatic conditions and farming culture. This property is the result of soil-forming natural processes, and when used in agriculture, it is also the result of cultivation. It has a huge impact on the value of an agricultural land plot as an object of valuation.


Author(s):  
R. J. Narconis ◽  
G. L. Johnson

Analysis of the constituents of renal and biliary calculi may be of help in the management of patients with calculous disease. Several methods of analysis are available for identifying these constituents. Most common are chemical methods, optical crystallography, x-ray diffraction, and infrared spectroscopy. The application of a SEM with x-ray analysis capabilities should be considered as an additional alternative.A scanning electron microscope equipped with an x-ray “mapping” attachment offers an additional dimension in its ability to locate elemental constituents geographically, and thus, provide a clue in determination of possible metabolic etiology in calculus formation. The ability of this method to give an undisturbed view of adjacent layers of elements in their natural state is of advantage in determining the sequence of formation of subsequent layers of chemical constituents.


2016 ◽  
Vol 10 (4s) ◽  
pp. 621-629
Author(s):  
Valentina Pidlisnyuk ◽  
◽  
John Harrington JR ◽  
Yulia Melnyk ◽  
Yuliya Vystavna ◽  
...  

The article focuses on examining the influence of fluctuations in annual precipitation amount on the quality of surface waters. Water quality was estimated with data on BOD, COD and phosphate–ion concentration within five selected regions of Ukraine. Analysis of the precipitation data (1991 – 2010) showed different regional trends. Using the statistics, determination of the interconnection between precipitation amount and water resources quality were done. The obtained regularities and associated uncertainties can be used for prediction of changes in water resource quality and as a guide for future adaptation to possible climate change.


Author(s):  
O.S. Bezuglova ◽  

Rostov Region belongs to the highly protected natural territories characterized by the continuous plowing. There territories are the only reserves with the soils preserved in their natural state. However, these areas often lack detailed information about the soils quality and composition. Surveying soils on these territories is crucial for determination of their basic physical and chemical properties. The resulted compilation of soil maps could lay a foundation for creating the Red Book of Soils and the formation of a section in the soil-geographical database of the Russian Federation. Subsequently, such information can be used as a background data for the main types of soils in the region. It will be also valuable during monitoring and justification of conservation measures.


2017 ◽  
Vol 30 (1) ◽  
pp. 273-289
Author(s):  
Anmari Meerkotter

The Constitutional Court (CC) judgment of Lee v Minister of Correction Services 2013 2SA 144 (CC) is a recent contribution to transformative constitutional jurisprudence in the field of the law of delict. This matter turned on the issue of factual causation in the context of wrongful and negligent systemic omissions by the state. In this case note, I explore the law relating to this element of delictual liability with specific regard to the traditional test for factual causation – the conditio sine qua non (‘but-for’) test. In particular, I note the problems occasioned by formalistic adherence to this test in the context of systemic state omissions as evidenced by the SCA judgment in the same matter. I also consider the manner in which English courts have addressed this problem. Thereafter, I analyse the CC’s broader approach to the determination of factual causation as one based on common sense and justice. I argue that this approach endorses a break from a formalistic application of the test and constitutes a step towards an approach which resonates with the foundational constitutional values of freedom, dignity and equality. Furthermore, it presents an appropriate solution to the problems associated with factual causation where systemic omissions are concerned. I then consider the transformative impact of the Lee judgment. In particular, I argue that the broader enquiry favoured by the CC facilitates the realisation of constitutionally guaranteed state accountability, and amounts to an extension of the existing norm of accountability jurisprudence. Hence, I contend that the judgment presents a further effort by the Constitutional Court to effect wholesale the constitutionalisation of the law of delict, as well as a vindicatory tool to be used by litigants who have been adversely affected by systemic state omissions.


Author(s):  
Romain Desplats ◽  
Timothee Dargnies ◽  
Jean-Christophe Courrege ◽  
Philippe Perdu ◽  
Jean-Louis Noullet

Abstract Focused Ion Beam (FIB) tools are widely used for Integrated Circuit (IC) debug and repair. With the increasing density of recent semiconductor devices, FIB operations are increasingly challenged, requiring access through 4 or more metal layers to reach a metal line of interest. In some cases, accessibility from the front side, through these metal layers, is so limited that backside FIB operations appear to be the most appropriate approach. The questions to be resolved before starting frontside or backside FIB operations on a device are: 1. Is it do-able, are the metal lines accessible? 2. What is the optimal positioning (e.g. accessing a metal 2 line is much faster and easier than digging down to a metal 6 line)? (for the backside) 3. What risk, time and cost are involved in FIB operations? In this paper, we will present a new approach, which allows the FIB user or designer to calculate the optimal FIB operation for debug and IC repair. It automatically selects the fastest and easiest milling and deposition FIB operations.


2010 ◽  
Vol 161 (8) ◽  
pp. 286-290
Author(s):  
Adrian Borgula

Where nature protection is concerned, the expert assessment of an environment poses questions about its natural and cultural heritage and its potential, about how representative it may be, about biodiversity in all its facets and about its development or potential threats to its existence. Although the forest was the dominant habitat in the original natural European landscape, for a long time nature protection has devoted too little attention to it. There are diverse threats and deficiencies. However, in the Swiss forests positive developments are discernible. Thus nature protection is one of the basic functions of the forest, nature reserves are being created, the area of the forest is increasing, as are reserves of deadwood, and greater importance is being given to regeneration suited to the site. Nevertheless much remains to be done to really achieve the goal of biodiversity and sus-tainability. For this purpose segregative and integrative measures are required. Since diversity needs surface area, in the first place it must be possible to set aside as forest reserves a quarter of the total forest area, spread over the whole country and preferably as natural forest reserves, in order to start the process of a long-term restoration to the natural state. Here the conservation of natural self-regulating processes supersedes classical nature protection. With a series of further integrative measures, biodiversity must also be promoted over the whole remaining forest area and in the areas of transition to other habitats. An abundance of varied structures is the key to diversity of species. A more courageous attitude to wilderness and “untidiness” when dealing with the forest is to be recommended. Nature experiences in wilderness areas give the population the possibility of discovering diversity and natural processes and encourage respect for the innumerable other species and habitats.


Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3070
Author(s):  
Sebastian Iwaszenko ◽  
Jakub Munk ◽  
Stefan Baron ◽  
Adam Smoliński

Modern dentistry commonly uses a variety of imaging methods to support diagnosis and treatment. Among them, cone beam computed tomography (CBCT) is particularly useful in presenting head structures, such as the temporomandibular joint (TMJ). The determination of the morphology of the joint is an important part of the diagnosis as well as the monitoring of the treatment results. It can be accomplished by measurement of the TMJ gap width at three selected places, taken at a specific cross-section. This study presents a new approach to these measurements. First, the CBCT images are denoised using curvilinear methods, and the volume of interest is determined. Then, the orientation of the vertical cross-section plane is computed based on segmented axial sections of the TMJ head. Finally, the cross-section plane is used to determine the standardized locations, at which the width of the gap between condyle and fossa is measured. The elaborated method was tested on selected TMJ CBCT scans with satisfactory results. The proposed solution lays the basis for the development of an autonomous method of TMJ index identification.


2020 ◽  
Vol 5 (1) ◽  
pp. 817-825
Author(s):  
Susanna L. Middelberg ◽  
Pieter van der Zwan ◽  
Cobus Oberholster

AbstractThe Zambian government has introduced the farm block development programme (FBDP) to facilitate agricultural land and rural development and encourage private sector investment. This study assessed whether the FBDP achieves these goals. Key obstacles and possible opportunities were also identified and, where appropriate, specific corrective actions were recommended. Qualitative data were collected through semi-structured interviews conducted in Lusaka with various stakeholders of the FBDP. The FBDP is designed to facilitate agricultural land development and encourage private sector investment. However, the programme falls far short in terms of implementation, amidst policy uncertainty and lack of support. This is evident by the insecurity of land tenure which negatively affects small- and medium-scale producers’ access to financing, lack of infrastructure development of these farm blocks, and constraints in the agricultural sector such as low labour productivity and poor access to service expertise. It is recommended that innovative policy interventions should be created to support agricultural development. This can be achieved by following a multistakeholder approach through involving private, public and non-profit sectors such as non-governmental organisations (NGOs) and donors.


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