Status, Prospects, Threats, and the Way Forward for Sustainable Management and Enhancement of the Tropical Indian Reservoir Fisheries: An Overview

2017 ◽  
Vol 26 (2) ◽  
pp. 155-175 ◽  
Author(s):  
U. K. Sarkar ◽  
K. M. Sandhya ◽  
P. Mishal ◽  
G. Karnatak ◽  
S. Kumari ◽  
...  
Author(s):  
N. E. Esiere ◽  
N. B. Ndulue ◽  
M. P. Akpan

In Akwa Ibom State, timber is used for building, construction, furniture making, transmission pole, pulp and paper, and chemicals. Timber harvesting, processing and utilization had remained a big business to quite a number of people with its attendant forest destruction and deforestation. The State was richly endowed with forest resources, which are of great benefit to man but the high demand and continuous harvesting of timber products in the State ecosystems without any deliberate sustainable management programmes has resulted in the over-harvesting and complete devastation of the standing stock of indigenous wood species. In addition, indiscriminate exploitation of these resources has caused depletion of forest leading to serious timber deficit. This work has discussed factors affecting timber production in Akwa Ibom State and the way forward. The paper has identified deforestation and ‘dereservation’, overexploitation of forest resources, revenues target by government, population growth and infrastructure expansion, non-participation of the private sector in forest development, amongst others, as factors responsible for the decline of timber resources in the state. The paper recommends that reforestation and afforestation programmes, conservation of natural forests, private sector participation in forest management, adoption of agroforestry system and sustainable management of natural resources can improve timber production in the State.


Author(s):  
Helder Barahona ◽  
Nicolás Velandia

International organizations have based their sustainability reports on the global reporting initiative framework. This creates value, and its impact is a tool to improve sustainable management oriented to global needs. In the majority of articles considered in the 2014-2018 period, the relationship between the sustainability reports of international organizations was analyzed with the way in which management should align the reports and sustainable practices with global needs. The general methodological framework consisted of analyzing the GRI-based sustainability reports, the levels of application according to global needs, and whether they contribute to the generation of value for sustainable management. The study focused on a content analysis, the dimensions applied, and the global needs considered, with the legality and formality criteria of the participating organizations. The most important results reflect that there is a correlation between reports and sustainable practices that are managed according to global needs, and external guarantees are sought.


2018 ◽  
Vol 41 ◽  
Author(s):  
Maria Babińska ◽  
Michal Bilewicz

AbstractThe problem of extended fusion and identification can be approached from a diachronic perspective. Based on our own research, as well as findings from the fields of social, political, and clinical psychology, we argue that the way contemporary emotional events shape local fusion is similar to the way in which historical experiences shape extended fusion. We propose a reciprocal process in which historical events shape contemporary identities, whereas contemporary identities shape interpretations of past traumas.


2020 ◽  
Vol 43 ◽  
Author(s):  
Aba Szollosi ◽  
Ben R. Newell

Abstract The purpose of human cognition depends on the problem people try to solve. Defining the purpose is difficult, because people seem capable of representing problems in an infinite number of ways. The way in which the function of cognition develops needs to be central to our theories.


1976 ◽  
Vol 32 ◽  
pp. 233-254
Author(s):  
H. M. Maitzen

Ap stars are peculiar in many aspects. During this century astronomers have been trying to collect data about these and have found a confusing variety of peculiar behaviour even from star to star that Struve stated in 1942 that at least we know that these phenomena are not supernatural. A real push to start deeper theoretical work on Ap stars was given by an additional observational evidence, namely the discovery of magnetic fields on these stars by Babcock (1947). This originated the concept that magnetic fields are the cause for spectroscopic and photometric peculiarities. Great leaps for the astronomical mankind were the Oblique Rotator model by Stibbs (1950) and Deutsch (1954), which by the way provided mathematical tools for the later handling pulsar geometries, anti the discovery of phase coincidence of the extrema of magnetic field, spectrum and photometric variations (e.g. Jarzebowski, 1960).


Author(s):  
W.M. Stobbs

I do not have access to the abstracts of the first meeting of EMSA but at this, the 50th Anniversary meeting of the Electron Microscopy Society of America, I have an excuse to consider the historical origins of the approaches we take to the use of electron microscopy for the characterisation of materials. I have myself been actively involved in the use of TEM for the characterisation of heterogeneities for little more than half of that period. My own view is that it was between the 3rd International Meeting at London, and the 1956 Stockholm meeting, the first of the European series , that the foundations of the approaches we now take to the characterisation of a material using the TEM were laid down. (This was 10 years before I took dynamical theory to be etched in stone.) It was at the 1956 meeting that Menter showed lattice resolution images of sodium faujasite and Hirsch, Home and Whelan showed images of dislocations in the XlVth session on “metallography and other industrial applications”. I have always incidentally been delighted by the way the latter authors misinterpreted astonishingly clear thickness fringes in a beaten (”) foil of Al as being contrast due to “large strains”, an error which they corrected with admirable rapidity as the theory developed. At the London meeting the research described covered a broad range of approaches, including many that are only now being rediscovered as worth further effort: however such is the power of “the image” to persuade that the above two papers set trends which influence, perhaps too strongly, the approaches we take now. Menter was clear that the way the planes in his image tended to be curved was associated with the imaging conditions rather than with lattice strains, and yet it now seems to be common practice to assume that the dots in an “atomic resolution image” can faithfully represent the variations in atomic spacing at a localised defect. Even when the more reasonable approach is taken of matching the image details with a computed simulation for an assumed model, the non-uniqueness of the interpreted fit seems to be rather rarely appreciated. Hirsch et al., on the other hand, made a point of using their images to get numerical data on characteristics of the specimen they examined, such as its dislocation density, which would not be expected to be influenced by uncertainties in the contrast. Nonetheless the trends were set with microscope manufacturers producing higher and higher resolution microscopes, while the blind faith of the users in the image produced as being a near directly interpretable representation of reality seems to have increased rather than been generally questioned. But if we want to test structural models we need numbers and it is the analogue to digital conversion of the information in the image which is required.


1979 ◽  
Vol 44 (1) ◽  
pp. 3-30 ◽  
Author(s):  
Carol A. Pruning

A rationale for the application of a stage process model for the language-disordered child is presented. The major behaviors of the communicative system (pragmatic-semantic-syntactic-phonological) are summarized and organized in stages from pre-linguistic to the adult level. The article provides clinicians with guidelines, based on complexity, for the content and sequencing of communicative behaviors to be used in planning remedial programs.


ASHA Leader ◽  
2013 ◽  
Vol 18 (2) ◽  
pp. 5-7 ◽  
Author(s):  
Patty Prelock

Children with disabilities benefit most when professionals let families lead the way.


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