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Wyszukujesz frazę "Mohammed, Omar." wg kryterium: Autor


Wyświetlanie 1-15 z 15
Tytuł:
Nie znacie dnia : poszukiwany numer 2 na świecie, duchowy przywódca talibów mułła Mohammed Omar, zapowiada w wywiadzie dla rosyjskiego tygodnika zniszczenie Waszyngtonu.
Autorzy:
Mohammed, Omar.
Powiązania:
Forum 2002, nr 25, s. 14
Data publikacji:
2002
Tematy:
Terroryzm
Operacja antyterrorystyczna 2001- w Afganistanie
Interwencja zbrojna w Afganistanie (2001)
Opis:
Tł. art. zamieszcz. w "Argumienty i Fakty". --- 2002, 12 VI.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Implementing GIS and linear regression models to investigate partial building failures
Autorzy:
Merza, Alaa Nuri
Raheem, Aram Mohammed
Naser, Ibrahim Jalal
Ibrahim, Mohammed Omar
Omar, Najat Qader
Powiązania:
https://bibliotekanauki.pl/articles/36072623.pdf
Data publikacji:
2023
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
GIS
IDW technique
crack identification
linear single
multi-regression models
Opis:
One of the most dangerous field problems in the civil engineering discipline is the suddenly developed cracks in the building, which could be caused by the swelling of the subsurface soil. Thus, this work has focused on employing a procedure in the geographic information system known as the inverse distance weighted (IDW) technique, to analyze the extent of cracks in a residential complex in the city of Kirkuk in Iraq using the physical and chemical soil data for seven boreholes from the field of the study. Physical soil parameters such as liquid limit (LL), gravel, sand, silt and clay percentages were characterized first, followed by chemical properties such as gypsum content (GYP), total suspended solids (TSS), potential of hydrogen (pH), and organic content (ORG). Furthermore, statistical studies such as plasticity index (PI) and soil characteristics association, linear single, and various linear multi-regression models were used. The data analysis shows that there are significantly positive and negative relationships between PI as a swelling indicator and the physical and chemical soil properties, although weak to moderate correlations were observed between PI and these variables. The PI values were accurately predicted by the proposed linear multi-regression models of the physical and integrated physical and chemical soil characteristics, with multiple R values of 0.92 for both models. As a result, the suggested statistical models can provide complete geographic and mechanical explanations for the crack sources in the investigated residential complex.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2023, 32, 4; 338-356
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Secondary treated wastewater as a concrete component and its impact on the basic strength properties of the material
Autorzy:
Ahmad, Omar Asad
Ayyad, Sami Mohammed
Powiązania:
https://bibliotekanauki.pl/articles/1853673.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ścieki wtórnie oczyszczone
woda pitna
właściwości mechaniczne
beton
wytrzymałość na rozciąganie
secondary treated wastewater
potable water
mechanical properties
concrete
tensile strength
Opis:
In Jordan, the unprecedented proliferation of building projects is anticipated to increase the potable water demand in the construction manufacturing. In the present work, secondary treated wastewater (STW) and potable water (PW) were used in the production of concrete mixes, which were subjected to testing after 3 to 28 days of curing to determine how the, mechanical properties of concrete was affected by the addition of secondary treated wastewater in various proportions (25-100%). Results indicated that the use of 25% and 75% of secondary treated wastewater in concrete production increased the compressive strength to 39 MPa after 28 days of curing. A more noticeable increment was recorded in tensile strength, which was double that achieved with the standard design. Overall, the compressive strength increased by 21.95% when secondary treated wastewater was used, while the expenditure related to water usage was halved. Furthermore, there was consistency between the results obtained from scaling up to actual ready-mix concrete production and the results of the empirical work.
Źródło:
Archives of Civil Engineering; 2021, 67, 1; 571-583
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of sand columns in the reinforcement of weak layers in road engineering
Autorzy:
Ayyad, Sami Mohammed
Ahmad, Omar Asad
Powiązania:
https://bibliotekanauki.pl/articles/1853672.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
kolumna piaskowa
odkształcenie względne
odbudowa
budownictwo drogowe
wzmocnienie
warstwa słaba
sand column
relative deformation
rebuilding
road engineering
reinforcement
weak layer
Opis:
It is an established fact that when roads are planned and constructed, consideration needs to be given to ensuring the strength of the road surface. It is, however, also the case that when an existing road is being rebuilt or is under maintenance, its base may need to be fortified to increase the road’s vehicle-carrying capacity. The base may, for example, contain a high proportion of weak soil that would be difficult, time-consuming, and costly to remove. This paper aims to investigate the efficacy of using sand-filled piles to reduce road deformation. Experiments conducted on sponge samples confirm that there is a relationship between the total area of sand-filled piles and relative reduction in deformation. It finds that the relationship is non-linear, but that the relationship can be made linear by adjusting the area of sand-filled piles. When the area of sand-filled piles increases from 7.8% to 19.4%, the deformation module can change by up to 100%. Relative reduction in deformation can change from 14% to 45.5% when the area of sand-filled piles increases from 7.8% to 11.7%. The maximum reduction in deformation - 92.4% - occurs when the area of sand-filled piles exceeds 19.5%. Changing the loads borne also affects the deformation module. This paper found that when there was a 10 to 15kg load, and the number of sandfilled piles was increased, there was a change in the deformation module by 380-470%. When there was only a 5kg load on the sample, and the number of sand-filled piles was increased, there was a change in the deformation module by up to 1217%.
Źródło:
Archives of Civil Engineering; 2021, 67, 1; 527-538
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ɵ(1) Time Algorithm for Master Selection in Ad-hoc Wireless Networks
Autorzy:
Khattabi, Mohammed
Elmesbahi, Jelloul
Khaldoun, Mohammed
Errami, Ahmed
Bouattane, Omar
Powiązania:
https://bibliotekanauki.pl/articles/226674.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cluster-based networks
cluster head selection
ad-hoc networks
wireless sensors networks
SDR
USRP
simulink
Opis:
This paper details a hardware implementation of a distributed Ɵ(1) time algorithm allows to select dynamically the master device in ad-hoc or cluster-based networks in a constant time regardless the number of devices in the same cluster. The algorithm allows each device to automatically detect its own status; master or slave; based on identifier without adding extra overheads or exchanging packets that slow down the network. We propose a baseband design that implements algorithm functions and we detail the hardware implementation using Matlab/Simulink and Ettus B210 USRP. Tests held in laboratory prove that algorithm works as expected.
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 3; 521-527
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enabling Wireless In-band Full-duplex
Autorzy:
Elmesbahi, Jelloul
Khaldoun, Mohammed
Errami, Ahmed
Khattabi, Mohammed El
Bouattane, Omar
Powiązania:
https://bibliotekanauki.pl/articles/226551.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
in-band full-duplex
wireless
USRP
SDR
GNU radio
Opis:
This paper presents a baseband model and an enhanced implementation of the wireless full duplex analog method introduced by [1].Unlike usual methods based on hardware and software self- interference cancelation, the proposed design relies on FSK modulation. The principle is when the transmitter of a local end is sending data by modulating the carrier with the appropriate frequency deviation, its own receiver is checking if the remote transmitter is using the opposite deviation. Instead of architectures often used by both non-coherent and coherent receivers that require one filter (matched filter for coherent detection) for each frequency deviation, our design uses one mixer and one single integrator-decimator filter. We test our design using Universal Software Radio Peripheral as radio frequency front end and computer that implements the signal processing methods under free and open source software. We validate our solution experimentally and we show that in-band full duplex is feasible and synthesizable for wireless communications.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 3; 429-434
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of entrepreneurial self-efficacy on persistence : do financial literacy and entrepreneurial passion matter?
Wpływ samooceny przedsiębiorczości na przetrwanie : czy literacyjność finansowa i pasja przedsiębiorczości mają zastosowanie?
Autorzy:
Al Issa, Hussein-Elhakim
Abdelsalam, Mohammed Khalifa
Omar, Mohammed Mispah Said
Powiązania:
https://bibliotekanauki.pl/articles/405350.pdf
Data publikacji:
2019
Wydawca:
Politechnika Częstochowska
Tematy:
entrepreneurial self-efficacy
entrepreneurial passion
financial literacy
entrepreneurial persistence
samoocena przedsiębiorczości
pasja przedsiębiorcza
znajomość finansów
wytrwałość przedsiębiorcza
Opis:
The primary purpose of the current study is to investigate the entrepreneurial self-efficacy as an antecedent to persistency among entrepreneurs. In addition to that, the study examines the mediating role of entrepreneurial passion between entrepreneurial self-efficacy and entrepreneurial persistence. Lastly, the study explored the relationship between financial literacy and persistence and its moderating role between entrepreneurial passion and persistence. Structural equation modeling through of partial least square bootstrapping resampling was used for hypotheses testing to analyze the data collected from a sample of 273 Malaysian entrepreneurs. The results of the study supported all arguments broached in the current research for the subjective norm, entrepreneurial self-efficacy, which showed a significant impact on entrepreneurial passion and entrepreneurial persistence. The moderating effect of financial literacy on entrepreneurial passion and entrepreneurial persistency was also highly significant. The current work is among the pioneering studies that examine entrepreneurial self-efficacy, entrepreneurial passion, financial literacy and entrepreneurial persistence among entrepreneurs.
Głównym celem niniejszego badania jest zbadanie własnej skuteczności przedsiębiorczej jako czynnika poprzedzającego wytrwałość wśród przedsiębiorców. Ponadto badanie bada mediacyjną rolę pasji przedsiębiorczej między samowystarczalnością przedsiębiorczą a wytrwałością przedsiębiorczą. Wreszcie w badaniu zbadano związek między znajomością finansów a wytrwałością oraz jej moderującą rolą między pasją przedsiębiorczości a wytrwałością. Do testowania hipotez wykorzystano modelowanie równań strukturalnych za pomocą częściowego ponownego próbkowania ładowania metodą najmniejszych kwadratów, aby przeanalizować dane zebrane z próby 273 malezyjskich przedsiębiorców. Wyniki badania potwierdziły wszystkie argumenty poruszone w bieżących badaniach na rzecz subiektywnej normy, własnej skuteczności przedsiębiorczej, która wykazała znaczący wpływ na pasję przedsiębiorczą i trwałość przedsiębiorczą. Bardzo istotny był również moderujący wpływ wiedzy finansowej na pasję przedsiębiorczości i trwałość przedsiębiorcy. Obecna praca należy do pionierskich badań, w których analizuje się skuteczność przedsiębiorczą, pasję przedsiębiorczą, znajomość finansów i wytrwałość przedsiębiorczą wśród przedsiębiorców.
Źródło:
Polish Journal of Management Studies; 2019, 20, 2; 60-72
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Spraying the Shots Parts with Ascorbic Acid on the Concentration of Some Mineral Nutrients in Vicia faba Treated with Heavy Metals
Autorzy:
Al-Rashedy, Hussein Saber Mohammed Ali
Mame, Suzan Othman Omar
Alsinjari, Waffaa Esam
Powiązania:
https://bibliotekanauki.pl/articles/24201730.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ascorbic acid
bean plant
heavy metals
magnesium
phosphorous
Opis:
This study aimed examine the impact of Ascorbic acid spraying once and twice at concentrations 250 and 500 mg/L on the concentration of some nutrients in the seeds of the bean plant (Vicia faba L.) grown on soils contaminated with nickel at concentrations 30 and 60 and lead at concentrations 300, 600 mg/kg soil.The results showed that soil treated with 600 mg/kg lead has a significant decrease of concentration of magnesium, phosphorous, potassium and chloride in the seeds of the bean plants which amounted to 1.16 , 1.121, 4.113 and 0.071 mg/g, respectively compared to the control group. It was also found that spraying the vegetative parts of the bean plant with 250 mg/L ascorbic acid twice was attributed to increasing of magnesium significantly in the seeds of the bean plant, which amounted to 4.00 mg/g. otherwise, spraying with the same concentration, but once, led to a significant increase in phosphorous concentration, which reached 1.335 mg/g. The results also showed that one-time spraying of 500 mg/L ascorbic acid led to a significant increase in chloride concentration, which amounted to 0.395 mg/g compared to the control group. The results show that lead treatment had a more negative effect on the concentration of nutrients compared to the effect of nickel. It was found that spraying with ascorbic acid at a concentration of 250 mg/L was significantly superior to the concentration of 500 mg/L of magnesium, phosphorous, potassium and chloride in the seeds of bean plants. Also, spraying with ascorbic acid once was superior to spraying twice with the concentration of both magnesium and chloride.
Źródło:
Journal of Ecological Engineering; 2023, 24, 6; 1--7
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transmission of Disaster Warnings via Control Channels in Cellular Networks
Autorzy:
Aal-Nouman, Mohammed I.
Abdullah, Osamah
Salman, Omar Hussein
Al-Shaikhli, Noor Qusay A.
Powiązania:
https://bibliotekanauki.pl/articles/1839317.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
control channel
disaster reduction
early warning message
mobile network
Opis:
According to United Nations reports, natural disasters caused, worldwide, approximately 100,000 deaths and affected 175 million people each year between 2004 and 2013. To reduce those numbers, countries around the globe have made specific arrangements enabling them to warn the population about imminent disasters, in order to evacuate the area in due time. But providing such warnings in areas where no Internet access is available poses a great challenge. In this paper, we proposed a method to transmit early warning messages via UMTS cellular networks, while relying on spare extensions of control channels (FACH). The results obtained are validate based on their comparison with theoretical considerations and are also benchmarked against the 3GPP standard. The results show that messages may be sent faster than with the use of the 3GPP standard.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 4; 53-61
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors associated to burn-out among Ibn Sina Hospital public health professionals
Autorzy:
Chtibi, Hassan
Mammad, Khaoula
Alaoui, Asmaa Mdaghri
Mohammed, Ouhssine
Jamila, Riyahi
Touhami Ahami, Ahmed Omar
Powiązania:
https://bibliotekanauki.pl/articles/29519202.pdf
Data publikacji:
2024-03-22
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
Burnout
Public Health professionals
risk factors
Burnout (MBI) scale
Opis:
Burn-out or exhaustion syndrome is caused by a prolonged exposure to a chronic professional stress. Public Health Professionals are the most exposed to this kind of risk. The ultimate goal here is to determine the prevalence of the burn-out and search for factors associated with this pathology among those who work in the field of health. Our sample, which is from the Ibn Sina Hospital in Rabat, consists of 150 nurses, 80 doctors, and 40 administrators. A self-questionnaire was employed, the Maslach Burnout Inventory (MBI) as well as a clinical interview. The results of this study show a high degree of burnout. Moreover, 56.66% of participants show a high level of emotional exhaustion, 45.18% suffer from a high level of depression. Meanwhile, the loss of a sense of personal accomplishment is high among 48.51% of those surveyed. The emotional exhaustion observed among people who have worked for a long time ago is associated with the means of transportation used and to the unsuitable hours of work. Depersonalization exists among elderly people and the oldest at work. This study confirms the existence of a high level of burnout among health professionals. Many socio-demographic and socio-professional factors contribute to the increase in the level that people are affected. These factors encourage the promotion of better working life conditions.
Źródło:
Acta Neuropsychologica; 2024, 22(1); 95-106
1730-7503
2084-4298
Pojawia się w:
Acta Neuropsychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
COVID-19 Pandemic: A Motive for Pro-Environmental Behaviors (Pebs) in the Egyptian Tourism and Hospitality Industry
Autorzy:
Elshaer, Abdallah M.
Al-Abyadh, Mohammed Hasan Ali
Alsetoohy, Omar
Marzouk, Asmaa M.
Agina, Mohamed Fathy
Powiązania:
https://bibliotekanauki.pl/articles/2174911.pdf
Data publikacji:
2022
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
pro-environmental behavior
employee behaviour
COVID-19 pandemic
green hotel
travel agency
Opis:
Academics have been curious about what motivates pro-environmental behaviour. However, a few research studies have been conducted to analyse and comprehend the pro-environmental behaviour of those in charge of service and production (employees). The COVID-19 outbreak highlighted this topic, emphasising the significance of employees’ pro-environmental behaviours (PEBs) in promoting and maintaining business sustainability. Therefore, this study contributes to the body of knowledge by investigating employees’ PEBs during the COVID-19 pandemic. In-person and online surveys were used to reach the staff of hotels and travel agencies in Egypt’s most popular tourist areas. The quantitative data were analysed with SPSS 25. The results revealed that employees of the tourism and hospitality industry are exceptionally engaged in PEBs in times of the COVID-19 pandemic. Also, the findings indicate that the structure of tourism and hospitality employees’ PEB comprises six factors: operation activities, habits, organisation rules, health, energy-saving, and environment-related activities. However, their behaviour must be guided and improved in three key areas (personal health, organisational rules, and operation activities). According to this study, employees may follow certain practices without understanding their justification or significance. In practice, the study presents recommendations that might increase the industry’s resistance to challenges in improving the pro-environmental behaviour of industry employees.
Źródło:
Rocznik Ochrona Środowiska; 2022, 24; 415--438
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
STUDY OF UNILATERAL SPATIAL NEGLECT IN PARKINSONS PATIENTS
Autorzy:
Ahmadou, Taher Moussa
Salim, EL-Mossati Mohamed
Moussa, Toudou Daouda
Ghita, Aboulem
Faouzi, Belahsen Mohammed
Touhami Ahami, Ahmed Omar
Powiązania:
https://bibliotekanauki.pl/articles/2138041.pdf
Data publikacji:
2021-06-23
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
Unilateral Spatial Negligence
Parkinson's Disease
Bell's test
Opis:
In Africa, few studies are interested in unilateral spatial neglect (NSU) in Parkinson's disease. However, this syndrome is a deficit to detect, respond to or orientate towards meaningful stimuli (Heil- man, KM 1973), observable after an injury affecting the non-dominant hemisphere for language. The significant handicap it entails justifies the need for early diagnosis and care. The NSU study is mo- tivated by its link with neurocognitive phenomena that are important on the theoretical level (attention, visuospatial and perceptual awareness). The objective is to study USN in Parkinson's pa tients, followed and hospitalized at the Neurology Department of Hassan II University Hospital in Fez. The visual-graphic test that has been used to detect this pathology is that of Bell's test. The test focuses on the detection of targets placed among several stimuli on a sheet of A4 paper. The material included 120 people: 60 Parkinsonian patients: 34 men (56,7%), and 26 women (43,3%) and 60 control subjects: 34 men (56,7%), and 26 women (43,3%). The groups were matched by age and sex. Different aspects of neglect have been observed throughout the Bell's test. It was found that total omission of bell figures was significantly influenced by age, being less frequent in the 35-49 age group in both groups, and higher in the elderly (50-80 years), as well the level of education. It have been reduced considerably with the increase in education. The hand used and the laterality had no effect; t = 3.76 degrees of freedom (df) = 108.27 and p = 0.000. Unilateral spatial neglect has a negative effect in subjects with Parkin- son's disease. It deserves to be systematically sought for a better clinical evaluation and therapeutic management of the patients.
Źródło:
Acta Neuropsychologica; 2021, 19(2); 219-229
1730-7503
2084-4298
Pojawia się w:
Acta Neuropsychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the quality of life in Moroccan Parkinson’s patients
Autorzy:
Ahmadou, Taher Moussa
Hanae, Benjebara
Ghita, Aboulem
Moussa, Toudou Daouda
Camara, Diankanagbe
Mariam, Jilla
Naima, Chtaou
Faouzi, Belahsen Mohammed
Touhami Ahami, Ahmed Omar
Powiązania:
https://bibliotekanauki.pl/articles/2106010.pdf
Data publikacji:
2020-03-10
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
Parkinson’s disease
Neurocognitive disorder
Quality of life
Opis:
Parkinson’s disease can lead to disability and reduce the quality of life of its patients. The purpose of this study is to evaluate the quality of life of a group of people with Parkinson’s disease. The clinical and progressive characteristics of the disease, its motor and neuropsychological impact were evaluated in each Parkinsonian subject included in the study. A quality of life assessment was performed and collected from 60 Parkinsonian patients followed and hospitalized at Hassan II University Hospital in Fez. Different instruments were used, the Hoenh and Yahr scale and the Parkinson’s disease questionnaire (PDQ-39) UPDRS engine, MMS, clinical fact sheet. According to our results, through the different tests and scale of evaluation, we observed an impaired quality of life in the areas of physical discomfort, cognitive disorder, activity of daily living, mobility, and emotional well-being, especially in patients with duration of evolution more than 5 years. There was no significant difference between the two sexes. In addition, the severity of the disease tended to give the impression of an impaired quality of life with respect to the dimensions of activities of daily living and cognition, which is relevant to improving the quality of life patient life and clinical interventions.
Źródło:
Acta Neuropsychologica; 2020, 18(1); 67-76
1730-7503
2084-4298
Pojawia się w:
Acta Neuropsychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
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