198 research outputs found
Systematic review of brucellosis in the Middle East: disease frequency in ruminants and humans and risk factors for human infection
This paper considers the problem of finding global states incoming to a specified global state in a Boolean network, which may be useful for pre-processing of finding a sequence of control actions for a Boolean network and for identifying the basin of attraction for a given attractor, We show that this problem is NP-hard in general along with related theoretical results, On the other hand, we present algorithms that are much faster than the naive exhaustive search-based algorithm. ©2007 IEEE.link_to_subscribed_fulltex
Knowledge, Attitudes, and Practices Associated with Brucellosis in Livestock Owners in Jordan
We evaluated livestock owners' knowledge, attitudes, and practices regarding brucellosis in Jordan. A questionnaire was administered and biological samples were examined to verify the serological status of animals. Seroprevalence estimates indicated that 18.1% (95% CI: 11–25.3) of cattle herds and 34.3% (95% CI: 28.4–40.4) of small ruminant flocks were seropositive. The results showed that 100% of the interviewed livestock keepers were aware of brucellosis: 87% indicated a high risk of infection if unpasteurized milk is consumed and 75% indicated a high risk if unpasteurized dairy products are consumed. Awareness of the risk of infection through direct contact with fetal membranes or via physical contact with infected livestock is considerably lower, 19% and 13%, respectively. These knowledge gaps manifest in a high frequency of high-risk practices such as assisting in animal parturition (62%), disposing aborted fetuses without protective gloves (71.2%) or masks (65%), and not boiling milk before preparation of dairy products (60%). When brucellosis is suspected, basic hygiene practices are often disregarded and suspect animals are freely traded. Public health education should be enhanced as the disease is likely to remain endemic in the ruminant reservoir as long as a suitable compensation program is not established and trust on available vaccines is regained
Effect of zero tillage and different weeding methods on grain yield of durum wheat in semi-arid regions
Received: September 28th, 2020 ; Accepted: December 1st, 2020 ; Published: December 10th, 2020 ; Correspondence: [email protected] high grain yield of wheat is limited by the dominance of weeds, particularly wild
oat. Therefore, to improve wheat yield under these conditions, a field experiment was carried out
in Maru Agricultural Research Station, Jordan during 2015–2016 and 2016–2017 to investigate
yield response of two wheat varieties (Triticum durum L.) to different tillage and weeding
treatments. The experimental design used was a split-split arrangement in a randomized complete
block design with three replicates. Two-tillage treatments (conventional vs. zero tillage) were
applied to the main plot, two wheat varieties to sub-plot, and five weeding methods (hand
weeding, broadleaf + narrow leaf herbicide, broadleaf herbicide, narrow leaf herbicide, and
controls) as a sub-sub-plot. The variety ‘Umqais’ had higher plant height, biological, grain, and
straw yield than the variety ‘Sham’. Hand weeding slightly increased grain yield compared with
mixed herbicides (the 2,4-D plus Antelope Clodinatop- propagyl). Furthermore, mixed herbicides
presented a higher grain yield than using either single herbicide. The interaction between tillage
systems and weeding methods was significant in both years. The highest (P < 0.05) straw yield
(5,990 kg ha-1
) was obtained by hand weeding under conventional tillage in the first season while
the highest grain yield (2,005 kg ha-1
) was obtained by hand weeding under zero tillage in the
second season. Under all weed control treatments, the variety ‘Umqais’ had higher biological,
grain, and straw yields than the variety ‘Sham’ in the second season indicating that variety
‘Umqais’ performed better under dry conditions. Our results confirmed the superior of zero tillage
for increasing the grain yield of the variety ‘Umqais’, and for increasing the biological and straw
yields of the variety ‘Sham’ under semi-arid rainfed conditions of Jordan
Marketing The Non-Profit Organizations,"The Jordan Museum as a case study"
The aim of this paper is to analyse the existing concepts of marketing and the difficulties of applying general marketing techniques in the Jordan Museum and highlighting the strengths, weakness, threats and opportunities that are facing the museum. The paper offers marketing suggestions that may influence and assist the Jordan museum to enhance its marketing structure. The gained information for the research was obtained byusing articles, books, case studies, interviews. This method is used to gain Varity of information, points of views, and attitudes. The questions deducted in the interviews focused on whether if the Museum in question is placed on the well-known tourist trail. Another focus was upon the tools & techniques should be used in marketing. The paper also investigated if there is any marketing plan considered and whether the museums in Jordan has been discussed or even mentioned in any of the international tourism or cultural conference’s Which Jordan is invited to. The result showed that The Jordan Museum lacks any marketing innovation and having no clear marketing plan. The museum can overcome this by reconsidering its priorities enclosing new marketing techniques. Key Words: Museums, Marketing mix, Nonprofit Organization DOI: 10.7176/JTHS/40-0
Systematic review of brucellosis in the Middle East: disease frequency in ruminants and humans and risk factors for human infection
The Palestinian Terrestrial Vertebrate Fauna Preserved at the Biology Exhibitions of the Universities of the Gaza Strip
The Gaza Strip (365 km2 ) of Palestine (27,000 km2 ) is home to a wealth of terrestrial vertebrate fauna. Some of these faunistic species find their ways to preservation at the local universities. Hence, the current study comes to document the Palestinian terrestrial vertebrate fauna acquired by the biology exhibitions (BEs) of Al-Azhar University, Islamic University of Gaza and Al-Aqsa University that are located at the Gaza City of the Gaza Strip. The amphibians, reptiles, birds and mammals preserved at BEs of the universities in question were surveyed and scientifically classified during a three-month period extending from January to March, 2012. The study showed that all BEs of local universities are underdeveloped, lacking attention and suffer from specimen scarcity and good preservation. The BE at Al-Azhar University is the best in the arrangement and preservation of bird specimens. A total number of 200 specimens belonging to 54 terrestrial vertebrate fauna species, 39 families and 17 orders was recorded at BEs. Reptiles constituted 40.7% of the total species recorded, followed by birds (38.9%), mammals (14.8%) and amphibians (5.6%). The Islamic University of Gaza was considered the best in terms of the number of preserved species (39.8%), followed by Al-Azhar University (36.3%) and Al-Aqsa University (23.9%). The Common Toad (Bufo viridis) was the most preserved among the amphibian species recorded. Squamata was the biggest reptilian order, comprising 20 species (8 lizards and 12 snakes), with the Syrian Black Snake (Coluber jugularis asianus) was the commonest. The Palestine Viper (Vipera palaestinae) is endemic to Palestine and most venomous and dangerous to human health. The Great White Pelican (Pelecanus onocrotalus) was the largest Palestinian bird preserved at BE of Al-Azhar University. The Egyptian Mongoose (Herpestes ichneumon) and the Common Badger (Meles meles) were the biggest mammalian specimens preserved, while the Palestine Mole-rat (Spalax leucodon ehrenbergi) was the only Palestine endemic species encountered among the preserved mammals. Finally, the improvement of BEs of local universities and the construction of a Central Museum of Natural History is highly recommended in order to change the Palestinians’ attitudes toward a sustainable ecological conservation in the Gaza Strip
Motor Preparatory Activity in Posterior Parietal Cortex is Modulated by Subjective Absolute Value
For optimal response selection, the consequences associated with behavioral success or failure must be appraised. To determine how monetary consequences influence the neural representations of motor preparation, human brain activity was scanned with fMRI while subjects performed a complex spatial visuomotor task. At the beginning of each trial, reward context cues indicated the potential gain and loss imposed for correct or incorrect trial completion. FMRI-activity in canonical reward structures reflected the expected value related to the context. In contrast, motor preparatory activity in posterior parietal and premotor cortex peaked in high “absolute value” (high gain or loss) conditions: being highest for large gains in subjects who believed they performed well while being highest for large losses in those who believed they performed poorly. These results suggest that the neural activity preceding goal-directed actions incorporates the absolute value of that action, predicated upon subjective, rather than objective, estimates of one's performance
Brucellosis remains a neglected disease inthe developing world: a call forinterdisciplinary action
Brucellosis places significant burdens on the human healthcare system and limits the economic growth of individuals, communities, and nations where such development is especially important to diminish the prevalence of poverty. The implementation of public policy focused on mitigating the socioeconomic effects of brucellosis in human and animal populations is desperately needed. When developing a plan to mitigate the associated consequences, it is vital to consider both the abstract and quantifiable effects. This requires an interdisciplinary and collaborative, or One Health, approach that consists of public education, the development of an infrastructure for disease surveillance and reporting in both veterinary and medical fields, and campaigns for control in livestock and wildlife species
Online detection and sorting of extracellularly recorded action potentials in human medial temporal lobe recordings, in vivo
Understanding the function of complex cortical circuits requires the
simultaneous recording of action potentials from many neurons in awake and
behaving animals. Practically, this can be achieved by extracellularly
recording from multiple brain sites using single wire electrodes. However, in
densely packed neural structures such as the human hippocampus, a single
electrode can record the activity of multiple neurons. Thus, analytic
techniques that differentiate action potentials of different neurons are
required. Offline spike sorting approaches are currently used to detect and
sort action potentials after finishing the experiment. Because the
opportunities to record from the human brain are relatively rare, it is
desirable to analyze large numbers of simultaneous recordings quickly using
online sorting and detection algorithms. In this way, the experiment can be
optimized for the particular response properties of the recorded neurons. Here
we present and evaluate a method that is capable of detecting and sorting
extracellular single-wire recordings in realtime. We demonstrate the utility of
the method by applying it to an extensive data set we acquired from
chronically-implanted depth electrodes in the hippocampus of human epilepsy
patients. This dataset is particularly challenging because it was recorded in a
noisy clinical environment. This method will allow the development of
closed-loop experiments, which immediately adapt the experimental stimuli
and/or tasks to the neural response observed.Comment: 9 figures, 2 tables. Journal of Neuroscience Methods 2006 (in press).
Journal of Neuroscience Methods, 2006 (in press
Intratumoral Hydrogen Peroxide With Radiation Therapy in Locally Advanced Breast Cancer: Results From a Phase 1 Clinical Trial.
Purpose Hydrogen peroxide (H2O2) plays a vital role in normal cellular processes but at supraphysiological concentrations causes oxidative stress and cytotoxicity, a property that is potentially exploitable for the treatment of cancer in combination with radiation therapy (RT). We report the first phase 1 trial testing the safety and tolerability of intratumoral H2O2 + external beam RT as a novel combination in patients with breast cancer and exploratory plasma marker analyses investigating possible mechanisms of action.Methods and materials Twelve patients with breast tumors ≥3 cm (surgically or medically inoperable) received intratumoral H2O2 with either 36 Gy in 6 twice-weekly fractions (n = 6) or 49.5 Gy in 18 daily fractions (n = 6) to the whole breast ± locoregional lymph nodes in a single-center, nonrandomized study. H2O2 was mixed in 1% sodium hyaluronate gel (final H2O2 concentration 0.5%) before administration to slow drug release and minimize local discomfort. The mixture was injected intratumorally under ultrasound guidance twice weekly 1 hour before RT. The primary endpoint was patient-reported maximum intratumoral pain intensity before and 24 hours postinjection. Secondary endpoints included grade ≥3 skin toxicity and tumor response by ultrasound. Blood samples were collected before, during, and at the end of treatment for cell-death and immune marker analysis.Results Compliance with H2O2 and RT was 100%. Five of 12 patients reported moderate pain after injection (grade 2 Common Terminology Criteria for Adverse Events v4.02) with median duration 60 minutes (interquartile range, 20-120 minutes). Skin toxicity was comparable to RT alone, with maintained partial/complete tumor response relative to baseline in 11 of 12 patients at last follow-up (median 12 months). Blood marker analysis highlighted significant associations of TRAIL, IL-1β, IL-4, and MIP-1α with tumor response.Conclusions Intratumoral H2O2 with RT is well tolerated with no additional toxicity compared with RT alone. If efficacy is confirmed in a randomized phase 2 trial, the approach has potential as a cost-effective radiation response enhancer in multiple cancer types in which locoregional control after RT alone remains poor
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