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Jun 02, 2015Open Access
Glyphosate, N-phosphonomethyl-glycine
(GLY), is a systemic post-emergence herbicide that controls weeds with great
efficiency whose low cost is reflected in its wide application. In the environment,
the presence of aminomethylphosphonic acid (AMPA), its main degradation
product, is indicative of the application of GLY to the land. The aim of this
study was to develop two analytical methods for the determination of GLY by
HPLC-UV and GLY and AMPA by GC-MS, in water, soil and sediment samples. The...
Jun 01, 2015Open Access
Recently ionospheric variability remains one of the most intensive
studies in the area of ionospheric physics. Despite the massive improved
knowledge of its dynamics, the ability to use this data to provide early, as
well as valid warning of upcoming earthquakes (seismo-ionospheric coupling) is
still controversial. However, anomalous behaviours of TEC in the ionosphere
before the occurrence of earthquakes have received several attentions by
scientists. In this paper, GPS-TEC variations of 31 day...
May 29, 2015Open Access
A cross-sectional study was conducted from November 2010 to April 2011 to
determine the prevalence of trypanosomosis and to identify the prevailing
species of trypanosomes in cattle present in and around Nekemte. Blood sample
were collected from ear vein of 400 cattle and then examined using thin and
thick smear method followed by Buffy coat examination. Anemic status was
determined by Packed Cell Volume (PCV). Out of 400 samples were examined, 36 (9%)
were positive, out of which 26 (0.065%) had...
May 28, 2015Open Access
Data streams are continuous and always keep evolving in nature. Because
of these reasons it becomes difficult to handle such data with simple and
static strategies. Data stream poses four main challenges to researchers. These
are infinite length, concept-evolution, concept-drift and feature evolution.
Infinite-length is because of the amount of data having no bounds.
Concept-drift is due to slow changes in the concept of stream. Concept-evolution
occurs due to presence of unknown classes in data...
May 28, 2015Open Access
Clustering in wireless sensor network (WSN) is an efficient way to structure
and organize the network. The cluster head (CH) forms dominant set in the network
responsible for the creation of clusters, maintenance
of the topology and data aggregation. A cluster head manages the resource
allocation to all the nodes belonging to its cluster. In this paper, we propose
a novel distributed clustering approach called Hybrid Weight-based Clustering Algorithm
(HWCA). HWCA considers the neighborhood, the
...
May 28, 2015Open Access
We discuss an alternative version of non-relativistic Newtonian mechanics
in terms of real Hilbert space mathematical framework. It is demonstrated that
the physics of this scheme is in accordance with the standard formulation.
Heisenberg-Schrodinger non-relativistic quantum mechanics is considered adequate
and complete. Since the suggested theory is dispersion free, linear superposition
principle is not violated but cannot affect results of measurements due to
spectral decomposition theorem for...
May 27, 2015Open Access
This work investigates the proximate and quantitative phytochemical
composition of Aframomum chrysanthum (AC). The result of proximate analysis showed carbohydrate composition of
(65.44% ± 1.7%) to be the highest component, followed by crude protein (13.10% ± 1.2%) and ash with the
least value (2.28% ± 0.1%). Quantification of the revealed phytochemical component showed the
concentration (μg/ml) of the
following in the order: alkaloids > flavonoids > tannins > phenol. The
study p...
May 26, 2015Open Access
Pyogenic liver abscess commonly occurs as a complication of biliary tract
and gastrointestinal infections, with diverticulitis and perforated bowel
becoming leading causes in recent years. We report the first case of liver abscess
as a complication of asymptomatic diverticulitis with no bacteremia, as well as
colovesical fistula. And, with this case presentation, we stress the importance
of considering diverticulitis in asymptomatic patients with liver abscess, as
well as the importance of early...
May 26, 2015Open Access
The aim of this work was to determine the
correlation between the characteristics of enterprises and entrepreneurs and competitiveness in SMEs (Small and
Medium Enterprises) in México City. For this purpose the data collected in the
first phase of this research were taken, which were collected through field
work using direct structured questionnaire to a sample of 400 companies and
correlation statistical tests were performed using the method Chi square. The main findings indicate that the level...
May 26, 2015Open Access
Ethiopia is an aid-dependent Horn of African country
that is known to have received various forms of assistance, especially the
humanitarian one. With the Cold War getting over, the country started receiving
democracy assistance being pledged to realize democratic ideals. This article
is concerned with foreign aid and its impact on democracy in Ethiopia in the post-1991
period. Its overall objective is thus to explore issues pertaining to the impact
of foreign aid on Ethiopia’s democratization d...
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