scholarly journals Rebuilding depleted fish stocks: biology, ecology, social science, and management strategies

2010 ◽  
Vol 67 (9) ◽  
pp. 1825-1829 ◽  
Author(s):  
Cornelius Hammer ◽  
Olav Sigurd Kjesbu ◽  
Gordon H. Kruse ◽  
Peter A. Shelton
Keyword(s):  
Social Science ◽  
Management Strategies ◽  
Panel Discussion ◽  
Reproductive Potential ◽  
Research Focus ◽  
Fish Stocks ◽  
Recovery Strategies ◽  
The Subject ◽  
Subject Material ◽  
Stock Recovery

Abstract Hammer, C., Kjesbu, O. S., Kruse, G. H., and Shelton, P. A. 2010. Rebuilding depleted fish stocks: biology, ecology, social science, and management strategies. – ICES Journal of Marine Science, 67: 1825–1829. This is an introduction to an ICES/PICES symposium entitled as in the title of this manuscript. During the symposium, five theme sessions embraced the subject material under the headings “Impact of fisheries and environmental impacts on stock structure, reproductive potential, and recruitment dynamics”, “Trophic controls on stock recovery”, “Methods for analysing and modelling stock recovery”, “Social and economic aspects of fisheries management and governance”, and “Management and recovery strategies”. A panel discussion provided a valuable overview of current understanding and research focus.

scholarly journals Framework of stock-recovery strategies: analyses of factors affecting success and failure

2010 ◽  
Vol 67 (9) ◽  
pp. 1849-1855 ◽  
Author(s):  
Cornelius Hammer ◽  
Christian von Dorrien ◽  
Christopher C. E. Hopkins ◽  
Fritz W. Köster ◽  
Einar M. Nilssen ◽  
...  
Keyword(s):  
Model Building ◽  
Recovery Period ◽  
Scientific Basis ◽  
Performance Criteria ◽  
Rapid Reduction ◽  
Factors Affecting ◽  
Fish Stocks ◽  
Successful Recovery ◽  
Recovery Strategies ◽  
Stock Recovery

Abstract Hammer, C., von Dorrien, C., Hopkins, C. C. E., Köster, F. W., Nilssen, E. M., St John, M., and Wilson, D. C. 2010. Framework of stock-recovery strategies: analyses of factors affecting success and failure. – ICES Journal of Marine Science, 67: 1849–1855. The EU FP6 UNCOVER project was aimed at producing a rational scientific basis for developing recovery strategies for some ecologically and socio-economically important fish stocks/fisheries in European seas. The immediate objectives were to identify changes experienced during stock depletion/collapses, to understand prospects for recovery, to enhance the scientific understanding of the mechanisms of recovery, and to formulate recommendations on how best to implement long-term management/recovery plans. We extended an earlier analysis conducted within the project of 13 performance criteria in relation to the recovery of more than 30 fish stocks/fisheries worldwide by multivariate exploratory analysis (canonical correspondence analysis), followed by model building [discriminant analysis (DA)] to quantify the relative importance of key performance criteria, singly or combined. Using the existing database, DA indicated that the four best additive predictors of successful recovery were “rapid reduction in fishing mortality”, “environmental conditions during the recovery period”, “life-history characteristics” of the target stock, and “management performance criteria”. The model classified the status “recovered” and “non-recovered” assigned originally with nearly 100% accuracy.

Specimen Collection Effect in Scanning Electron Microscopy Images

1972 ◽  
Vol 30 ◽  
pp. 448-449
Author(s):  
J. Temple Black ◽  
Jose Guerrero
Keyword(s):  
Surface Morphology ◽  
Secondary Electron Emission ◽  
Secondary Electrons ◽  
Charge Effects ◽  
Material Density ◽  
Specimen Collection ◽  
The Subject ◽  
Curved Paths ◽  
Subject Material ◽  
Microscopy Images

In the SEM, contrast in the image is the result of variations in the volume secondary electron emission and backscatter emission which reaches the detector and serves to intensity modulate the signal for the CRT's. This emission is a function of the accelerating potential, material density, chemistry, crystallography, local charge effects, surface morphology and especially the angle of the incident electron beam with the particular surface site. Aside from the influence of object inclination, the surface morphology is the most important feature In producing contrast. “Specimen collection“ is the name given the shielding of the collector by adjacent parts of the specimen, producing much image contrast. This type of contrast can occur for both secondary and backscatter electrons even though the secondary electrons take curved paths to the detector-collector.Figure 1 demonstrates, in a unique and striking fashion, the specimen collection effect. The subject material here is Armco Iron, 99.85% purity, which was spark machined.

South Sea Tales

2008 ◽  
Author(s):  
Robert Louis Stevenson
Keyword(s):  
Nineteenth Century ◽  
Cross Cultural ◽  
Robert Louis Stevenson ◽  
Global Culture ◽  
Cultural Encounters ◽  
Post Colonial ◽  
The Pacific ◽  
South Sea ◽  
The Subject ◽  
Subject Material

The literary world was shocked when in 1889, at the height of his career, Robert Louis Stevenson announced his intention to settle permanently on the Pacific island of Samoa. His readers were equally shocked when he began to use the subject material offered by his new environment, not to promote a romance of empire, but to produce some of the most ironic and critical treatments of imperialism in nineteenth-century fiction. In these stories, as in his work generally, Stevenson shows himself to be a virtuoso of narrative styles: his Pacific fiction includes the domestic realism of ‘The Beach at Falesé, the folktale plots of ‘The Bottle Imp’ and ‘The Isle of Voices’, and the modernist blending of naturalism and symbolism in The Ebb-Tide. But beyond their generic diversity the stories are linked by their concern with representing the multiracial society of which their author had become a member. In this collection - the first to bring together all his shorter Pacific fiction in one volume - Stevenson emerges as a witness both to the cross- cultural encounters of nineteenth-century imperialism and to the creation of the global culture which characterizes the post-colonial world.

scholarly journals Dentoskeletal Effects and “Effective” Temporomandibular Joint, Maxilla and Chin Changes in Good and Bad Responders to van Beek Activator Treatment

2007 ◽  
Vol 77 (1) ◽  
pp. 64-72 ◽  
Author(s):  
Sabine Ruf ◽  
Margareta Bendeus ◽  
Hans Pancherz ◽  
Urban Hägg
Keyword(s):  
Temporomandibular Joint ◽  
Class Ii ◽  
Good Responder ◽  
Skeletal Changes ◽  
Maxillary Molars ◽  
Division 1 ◽  
The Subject ◽  
Subject Material ◽  
Lateral Head ◽  
Lower Incisors

Abstract Objective: To assess possible differences in dentoskeletal effects and “effective” temporomandibular joint, maxilla, and chin changes between good and bad responders to van Beek activator treatment. Materials and Methods: The subject material consisted of 20 consecutive normodivergent male Class II division 1 patients treated with a van Beek activator. Because of insufficient cooperation, four patients were excluded. Lateral head films were taken 6 months before treatment, at start of treatment, and after 12 months of treatment. The patients were placed into a good responder group (successful, n = 8) and a bad responder group (unsuccessful, n = 8). An overjet reduction ≥4 mm was considered successful. Results: During the van Beek treatment period, the good responders showed a significantly larger improvement in overjet and molar relationship than did the bad responders. The good responders exhibited a significant posterior development of condylion, less anterior mandibular autorotation, retrusion of upper incisors, protrusion of lower incisors, distalization of maxillary molars, and a mesial movement of mandibular molars. No significant dental movements were seen in the bad responders. Conclusions: Although van Beek activator treatment affected the direction of condylar growth, as well as the direction of maxilla and chin changes, it can be concluded that skeletal changes did not contribute to the Class II correction. Instead, overjet reduction during van Beek activator treatment was found to be due to a favorable dental reaction.

". . . AND WITH NO LANGUAGE BUT A CRY"

PEDIATRICS ◽  
1956 ◽  
Vol 18 (5) ◽  
pp. 690-691
Author(s):  
EDWARD B. SHAW
Keyword(s):  
Panel Discussion ◽  
Disease Entity ◽  
Academic Standing ◽  
Common Complaint ◽  
Symptom Complex ◽  
The Subject

IN THIS issue is reported a panel discussion on the subject of colic. The difficulties of this subject are implicit with the consideration of a symptom rather than of a disease entity—it is as though one chose to speak of cough or rash or any other symptom. This symptom complex has little academic standing for the more one is cloistered from the plaints of parents in the evening hours the less important it appears. Every pediatrician who is interminably consulted by the parents of a thriving baby who simply cries, and cries, and cries, suffers along with the distracted mother and the unhappy father and must wish most sincerely that he had a good, and preferably a single, answer to this all too common complaint.

Integrating indigenous ecological knowledge and customary sea tenure with marine and social science for conservation of bumphead parrotfish (Bolbometopon muricatum) in the Roviana Lagoon, Solomon Islands

2004 ◽  
Vol 31 (1) ◽  
pp. 69-83 ◽  
Author(s):  
SHANKAR ASWANI ◽  
RICHARD J. HAMILTON
Keyword(s):  
Social Science ◽  
Solomon Islands ◽  
Management Strategies ◽  
Ecological Knowledge ◽  
Small Fish ◽  
Lunar Periodicity ◽  
The People ◽  
Indigenous Ecological Knowledge ◽  
Sea Tenure ◽  
Bolbometopon Muricatum

Indigenous ecological knowledge and customary sea tenure may be integrated with marine and social science to conserve the bumphead parrotfish (Bolbometopon muricatum) in the Roviana Lagoon, Western Solomon Islands. Three aspects of indigenous ecological knowledge in Roviana were identified as most relevant for the management and conservation of bumphead parrotfish, and studied through a combination of marine science and anthropological methods. These were (1) local claims that fishing pressure has had a significant impact on bumphead parrotfish populations in the Roviana Lagoon; (2) the claim that only small bumphead parrotfish were ever seen or captured in the inner lagoon and that very small fish were restricted to specific shallow inner-lagoon nursery regions; and (3) assertions made by local divers that bumphead parrotfish predominantly aggregated at night around the new moon period and that catches were highest at that time. The research supported claims (1) and (2), but did not support proposition (3). Although the people of the Roviana Lagoon had similar conceptions about their entitlement rights to sea space, there were marked differences among regional villages in their opinions regarding governance and actual operational rules of management in the Lagoon. Contemporary differences in management strategies resulted from people's historical and spatial patterns of settlement across the landscape and adjoining seascapes, and the attendant impact of these patterns on property relations. This was crucial in distinguishing between those villages that held secure tenure over their contiguous sea estates from those that did not. Indigenous ecological knowledge served to (1) verify that the bumphead parrotfish was a species in urgent need of protection; (2) explain how different habitats structured the size distribution of bumphead parrotfish; (3) identify sensitive locations and habitats in need of protection; and (4) explain the effect of lunar periodicity on bumphead parrotfish behaviour and catch rates. Secure customary sea tenure identified locations best suited to bumphead parrotfish management programmes, with a greater likelihood for local participation and programme success. The information was used to establish two marine protected areas in the region for bumphead parrotfish conservation.

scholarly journals Fundamentos del método científico

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
M. H Badii ◽  
A. R. Pazhakh ◽  
José Luis Abreu Quintero ◽  
R Foroughbakhch
Keyword(s):  
Data Collection ◽  
Research Methodology ◽  
Literature Search ◽  
Ethical Issues ◽  
Scientific Work ◽  
Scientific Methodology ◽  
The Subject ◽  
Basic Concepts ◽  
Points Of View ◽  
Subject Material

Palabras claves: Ciencia, ECOEE, investigación, métodosResumen. El objetivo de esta obra no radica en realizar una búsqueda exhaustiva de la literatura en el tema, sino, sentar las bases del método científico, notando los aspectos filosóficos e éticos de la ciencia. Se presentan los conceptos y definiciones fundamentales relacionados con la metodología de la investigación científica. Se maneja el concepto de la toma de los datos válidos como un requisito básico en cualquier trabajo científico. Se pone a disposición del lector un modelo denominado el ECOEE que es una herramienta poderosa para establecer puntos de comparación e discusión entre los resultados de diferentes trabajos científicos. Finalmente, ofrece unas sugerencias de que hacer o no hacer en cuanto a realizar un trabajo de investigación.Key words: ECOEE, methods, research, Science Abstract.The aim of this paper is not to conduct a thorough literature search on the subject material, but to stress the fundamentals of the scientific methodology along with the philosophical and ethical issues thereof. The basic concepts and definitions in relation to research methodology are presented. The concept of data collection as a basic requisite in any scientific work is discussed. The ECOEE model as a strong tool in establishing different points of view and comparison among the results of different scientific works are laid out. Finally, some tips and suggestions are given as what to do or to avoid in conducting scientific research.

scholarly journals RUDRA PARPATI: AN AYURVEDIC HERBO – MINERAL DRUG REVIEW

2021 ◽  
Vol 9 (8) ◽  
pp. 1819-1823
Author(s):  
Priyanka. B. Patil ◽  
Usha M ◽  
Ravi R Chavan
Keyword(s):  
Mode Of Action ◽  
Medical Literature ◽  
Review Article ◽  
The Internet ◽  
Pharmacological Properties ◽  
Review Articles ◽  
Therapeutic Uses ◽  
The Subject ◽  
Subject Material ◽  
Drug Review

The main objective of this review article is to discuss the therapeutic uses of Rudra Parpati and to discuss the different pharmacological properties and therapeutic uses of isolated constituent drugs of Rudra Parpati. The authentic subject material has been reviewed from Ayurveda and modern medical literature. Different research and review articles were searched in different journals. The subject material has also been searched on the internet. This review is mainly focused on different aspects of herbo mineral Ayurvedic formulation Rudra Parpati. Parpati rasayana is one among Chaturvidha Rasayana Kalpa which is very effective and can be prepared with less effort. In Ayurveda Rudra Parpati is mentioned in the management of Kasa/cough. Though it is popular as only Parpati used in Kharapaka form & having an indication other than Grahani but still an unexplored treasure with unique therapeutic utility. Hence an attempt has been made to address the therapeutic uses of Rudra Parpati and the probable mode of action of its constituent drugs. Keywords: Rudraparpati, Vataja Kasa.

scholarly journals Społecznie konstruowane ciała i performatywna magia: Teoria socjologiczna Pierre’a Bourdieu w badaniach performatywnych

2017 ◽  
Author(s):  
Lucyna Kopciewicz
Keyword(s):  
Social Construction ◽  
Social Science ◽  
Performance Studies ◽  
Sociological Theory ◽  
Cultural Anthropology ◽  
The Body ◽  
Communication Studies ◽  
Spatial Practices ◽  
Theatre Studies ◽  
The Subject

Social construction of the body and the performative magic: Pierre Bourdieu’s sociological theory in performance studiesPerformance studies are a developing field of social science which draws on the insights of sociology, ethnography, cultural studies, cultural anthropology, theatre studies and communication studies. The object of performance studies is human activity seen as expression which constitutes the process of production and reproduction of subjectivity. In this text the author analyses Pierre Bourdieu’s sociological theory from the perspective of performance studies: of questions about social agency, understood as constructing the subject within a specific field of power. The author focuses particularly on the following aspects of individual and collective practices as described by Pierre Bourdieu: spatial practices, bodily practices, and masculine domination. Społecznie konstruowane ciała i performatywna magia: Teoria socjologiczna Pierre’a Bourdieu w badaniach performatywnychPerformatyka jest rozwijającą się dziedziną badań społecznych, która korzysta z dorobku socjologii, etnografii, studiów kulturowych, antropologii kulturowej, teatrologii, studiów nad komunikowaniem. Przedmiotem badań performatywnych jest aktywność ludzka rozumiana jako ekspresja, która stanowi proces wytwarzania i reprodukowania podmiotowości. W niniejszym tekście autorka analizuje teorię socjologiczną Pierre’a Bourdieu w perspektywie performatyki: pytań o społeczną sprawczość rozumianą jako konstruowanie podmiotu w określonym polu władzy. Szczególnemu namysłowi autorka poddaje następujące aspekty indywidualnych i zbiorowych praktyk opisane przez Pierre’a Bourdieu: praktyki przestrzenne, praktyki cielesne, męska dominacja.

scholarly journals Unwanted Overtures by Night, Remorse by Day

2019 ◽  
pp. 514-525
Author(s):  
Muna Irfan ◽  
Michel J. Howell
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sexual Behavior ◽  
Sleep Apnea ◽  
Sleep Disorders ◽  
Eye Movement ◽  
Management Strategies ◽  
Current Understanding ◽  
Obstructive Sleep ◽  
Epilepsy Treatment ◽  
The Subject

Sexual behavior in sleep has only recently been recognized as a variant of non–rapid-eye-movement (NREM) arousal parasomnias. This chapter discusses a case of sexsomnia precipitated by obstructive sleep apnea, the ensuing impact on the subject and his bed partner, and evaluation and management strategies. Sexsomnia is suspected to be highly underreported and carries significant physical, psychosocial, and forensic ramifications. Polysomnography with expanded electroencephalography can help identify concurrent sleep disorders and exclude other etiologies such as epilepsy. Treatment of comorbid sleep disorders such as obstructive sleep apnea and sleep deprivation is highly effective in controlling the abnormal sexual behavior. There is a pressing need for research and expansion of current understanding to develop a standardized approach to evaluation and management of sexsomnia.

Sign in / Sign up

Export Citation Format

Share Document