The Effects of Flooding on Forest Floristics and Physical Structure in the Amazon: Results from Two Permanent Plots

2013 ◽  
Vol 02 (01) ◽  
Author(s):  
Randall W Myster
Keyword(s):  
Physical Structure ◽  
Permanent Plots

Preparation And elemental analysis of ancient fibers

1987 ◽  
Vol 45 ◽  
pp. 410-411
Author(s):  
Allen Angel ◽  
Kathryn A. Jakes
Keyword(s):  
Cross Sections ◽  
Physical Structure ◽  
Energy Dispersive ◽  
Archaeological Sites ◽  
X Ray ◽  
Long Term Storage ◽  
Backscattered Electron ◽  
Electron Imaging

Fabrics recovered from archaeological sites often are so badly degraded that fiber identification based on physical morphology is difficult. Although diagenetic changes may be viewed as destructive to factors necessary for the discernment of fiber information, changes occurring during any stage of a fiber's lifetime leave a record within the fiber's chemical and physical structure. These alterations may offer valuable clues to understanding the conditions of the fiber's growth, fiber preparation and fabric processing technology and conditions of burial or long term storage (1).Energy dispersive spectrometry has been reported to be suitable for determination of mordant treatment on historic fibers (2,3) and has been used to characterize metal wrapping of combination yarns (4,5). In this study, a technique is developed which provides fractured cross sections of fibers for x-ray analysis and elemental mapping. In addition, backscattered electron imaging (BSI) and energy dispersive x-ray microanalysis (EDS) are utilized to correlate elements to their distribution in fibers.

What Is an Institution?

2007 ◽  
pp. 5-27 ◽  
Author(s):  
J. Searle
Keyword(s):  
Physical Structure ◽  
Necessary Condition ◽  
Collective Intentionality ◽  
Institutional Facts ◽  
Institutional Fact ◽  
The Status ◽  
The Creation ◽  
State Of Affairs ◽  
In Virtue Of ◽  
Typical Point

The author claims that an institution is any collectively accepted system of rules (procedures, practices) that enable us to create institutional facts. These rules typically have the form of X counts as Y in C, where an object, person, or state of affairs X is assigned a special status, the Y status, such that the new status enables the person or object to perform functions that it could not perform solely in virtue of its physical structure, but requires as a necessary condition the assignment of the status. The creation of an institutional fact is, thus, the collective assignment of a status function. The typical point of the creation of institutional facts by assigning status functions is to create deontic powers. So typically when we assign a status function Y to some object or person X we have created a situation in which we accept that a person S who stands in the appropriate relation to X is such that (S has power (S does A)). The whole analysis then gives us a systematic set of relationships between collective intentionality, the assignment of function, the assignment of status functions, constitutive rules, institutional facts, and deontic powers.

ASSESSMENT OF HYDROLOGICAL CHANGES IN THE ŠUŠVĖ RIVER

2015 ◽  
Author(s):  
Gražina ŽIBIENĖ ◽  
Alvydas ŽIBAS ◽  
Goda BLAŽAITYTĖ
Keyword(s):  
Hydrological Regime ◽  
Maximum Flow ◽  
Environmental Flow ◽  
Physical Structure ◽  
River Channels ◽  
Hydrologic Alteration ◽  
Water Conditions ◽  
Flow Components ◽  
The Impact ◽  
Large Floods

The construction of dams in rivers negatively affects ecosystems because dams violate the continuity of rivers, transform the biological and physical structure of the river channels, and the most importantly – alter the hydrological regime. The impact on the hydrology of the river can occur through reducing or increasing flows, altering seasonality of flows, changing the frequency, duration and timing of flow events, etc. In order to determine the extent of the mentioned changes, The Indicators of Hydrologic Alteration (IHA) software was used in this paper. The results showed that after the construction of Angiriai dam, such changes occurred in IHA Parameters group as: the water conditions of April month decreased by 31 %; 1-day, 3-days, 7-days and 30-days maximum flow decreased; the date of minimum flow occurred 21 days later; duration of high and low pulses and the frequency of low pulses decreased, but the frequency of high pulses increased, etc. The analysis of the Environmental Flow Components showed, that the essential differences were recorded in groups of the small and large floods, when, after the establishment of the Šušvė Reservoir, the large floods no longer took place and the probability of frequency of the small floods didn’t exceed 1 time per year.

Islam and Modernity: A Case of Muslim Female Engineers in Malaysia

2012 ◽  
Vol 8 ◽  
pp. 403-419
Author(s):  
Rohaiza Abd. Rokis
Keyword(s):  
Engineering Students ◽  
Structured Interview ◽  
Physical Structure ◽  
Normative Values ◽  
Self Presentation ◽  
Roles And Responsibilities ◽  
Modern Development ◽  
Modern Engineering ◽  
Islam And Modernity ◽  
Careful Management

Malaysia is portrayed as one of the modern and developed Muslim nations. Its rapid modern development in physical structure impressed many people. However, little is known about the situation of its non-physical structure, particularly the religious and normative values. This paper rests on the stance that individuals’ religious values remain despite the nation’s effort towards modernisation, particularly in the relations of women and profession. To achieve the purpose, this article explores the paradoxes relating to the intricate relationships between the traditional feminine social expectations and modern engineering profession experienced by Muslim female engineers and students in Malaysia. The research is a structured interview design on thirty-six Muslim female engineers and engineering students. It found that there were potential self-presentation crises, particularly when women participated in a male-dominated workplace. The gendering issues in engineering overwhelmingly projected the collision between modernism and traditionalism. Such a blending situation depended on very careful management as being women with a clear expectation towards traditional feminine roles and responsibilities, while at the same time they have to present themselves in a business-like, modern manner in terms of competence, commitment and ambitious targets to claim a rightful place in the engineering world. Modernisation has not been able to change women’s traditional attitude. Though they may be modernised, educated and professional, these women are still traditional at heart.

Konkurrenz zwischen Stieleiche und Buche auf Lothar-Sturmflächen | Competition between pedunculate oak and European beech on Lothar windthrow areas

2009 ◽  
Vol 160 (5) ◽  
pp. 114-123 ◽  
Author(s):  
Daniel Otto ◽  
Sven Wagner ◽  
Peter Brang
Keyword(s):  
Large Scale ◽  
Early Stage ◽  
Tree Height ◽  
European Beech ◽  
Threshold Value ◽  
Test Methods ◽  
Permanent Plots ◽  
Pedunculate Oak ◽  
Competitive Pressure ◽  
Competition Index

The competitive pressure of naturally regenerated European beech (Fagus sylvatica) saplings on planted pedunculate oak (Quercus robur) was investigated on two 1.8 ha permanent plots near Habsburg and Murten (Switzerland). The plots were established with the aim to test methods of artificial oak regeneration after large-scale windthrow. On both plots, 80 oaks exposed to varying levels of competitive pressure from at most 10 neighbouring beech trees were selected. The height of each oak as well as stem and branch diameters were measured. The competitive pressure was assessed using Schütz's competition index, which is based on relative tree height, crown overlap and distance from competing neighbours. Oak trees growing without or with only slight competition from beech were equally tall, while oaks exposed to moderate to strong competition were smaller. A threshold value for the competition index was found above which oak height decreased strongly. The stem and branch diameters of the oaks started to decrease even if the competition from beech was slight, and decreased much further with more competition. The oak stems started to become more slender even with only slight competition from beech. On the moderately acid beech sites studied here, beech grow taller faster than oak. Thus where beech is competing with oak and the aim is to maintain the oak, competitive pressure on the oak must be reduced at an early stage. The degree of the intervention should, however, take the individual competitive interaction into account, with more intervention if the competition is strong.

Die weltweite Bedeutung von permanenten Stichproben im Wandel der Informationsbedürfnisse: das Beispiel der Kohlenstoffinventuren | The global meaning of permanent sampling in keeping with the need for information: the example of carbon stock inventories

2003 ◽  
Vol 154 (3-4) ◽  
pp. 122-125 ◽  
Author(s):  
Michael Köhl
Keyword(s):  
Carbon Stock ◽  
Information Needs ◽  
Permanent Plots ◽  
Timber Production ◽  
Theoretical Concepts ◽  
Multiple Functions ◽  
Goods And Services ◽  
Global Meaning ◽  
Ideal Tool ◽  
Flexible Instruments

Permanent sampling designs utilize permanent plots and observations on successive occasions and proven to be an ideal tool for providing information on the sustainability of timber production. Are permanent sampling designs an adequate instrument to satisfy information needs concerning the sustainability of the multiple functions of forests? The example of carbon stock inventories is selected to demonstrate that permanent sampling designs are flexible instruments for inventorying and monitoring forests. The theoretical concepts of permanent samples can easily be adapted to new attributes and allow for providing a wide scope of information on wood and non-wood goods and services of forests.

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