The Journal of Infection in Developing Countries, 2011
Introduction: Both malaria and anaemia have adverse effects on maternal and perinatal outcomes. T... more Introduction: Both malaria and anaemia have adverse effects on maternal and perinatal outcomes. Thus there is an urgent need to investigate the co-epidemiology of malaria and anaemia and their combined impact on maternal and perinatal outcomes in the different regions of Sudan Methodology: Various cross-sectional and case control studies conducted during the years 2003-2010 to investigate the epidemiology of malaria and anaemia and their impact on maternal and perinatal outcomes in different regions of Sudan were compared. Results: While 13.7% of antenatal attendants in New Halfa had peripheral microscopically detected Plasmodium falciparum malaria, placental malaria (using histological examinations) was prevalent in 32.0-40% and 19.5% of parturient women in New Halfa and Gadarif Hospitals, respectively. Malaria was a risk factor for anaemia in New Halfa and for stillbirths in Omdurman Maternity Hospital. Anaemia was present in 52.5%, 62.6% and 80.2% of pregnant women in Medani, New...
The green lacewing, Chrysoperla carnea Steph (Neuroptera: Chrysopidae) was successively released ... more The green lacewing, Chrysoperla carnea Steph (Neuroptera: Chrysopidae) was successively released (with three levels), 5, 10 and 15 larvae/tree at late April, late May and late June 2006 and repeated in the same times during 2007 at Gharbia Governorate. During the first season (2006), the reduction percentages in the population of the citrus mealybug, Planococcus citri (Risso) increased gradually with elapse of time. The achieved average reductions in mealybug population were 66.08, 82.75 and 98.66% at the end of July for the three releasing levels, respectively in the first year (2006). However, the same trend was achieved in the second season (2007) and reduction percentages were 56.14, 80.86 and 93.92%, respectively. Statistical analysis revealed differences in responses to the three successive releasing levels of C. carnea for management P. citri during 2006 an 2007 seasons that proved no significant among the two seasons. The present work has shown that C. carnea can use successfully as a biocontrol agent in an integrated program for controlling P. citri attacking citrus trees.
Low power FPAA design based on OTA using 90nm CMOS technology
2011 International Conference on Energy Aware Computing, 2011
This paper presents a low power Field programmable Analog Array (FPAA) based on operational trans... more This paper presents a low power Field programmable Analog Array (FPAA) based on operational transconductance amplifier (OTA) implemented in 90nm 1.2V CMOS technology achieving an operating frequency of 288MHz. Different continuous time filters in a frequency range from 52MHz to 282MHz can be implemented on that FPAA design achieving a max power of 62 mWatt for a 6th order band
The green lacewing, Chrysoperla carnea Steph (Neuroptera: Chrysopidae) was successively released ... more The green lacewing, Chrysoperla carnea Steph (Neuroptera: Chrysopidae) was successively released (with three levels), 5, 10 and 15 larvae/tree at late April, late May and late June 2006 and repeated in the same times during 2007 at Gharbia Governorate. During the first season (2006), the reduction percentages in the population of the citrus mealybug, Planococcus citri (Risso) increased gradually with elapse of time. The achieved average reductions in mealybug population were 66.08, 82.75 and 98.66% at the end of July for the three releasing levels, respectively in the first year (2006). However, the same trend was achieved in the second season (2007) and reduction percentages were 56.14, 80.86 and 93.92%, respectively. Statistical analysis revealed differences in responses to the three successive releasing levels of C. carnea for management P. citri during 2006 an 2007 seasons that proved no significant among the two seasons. The present work has shown that C. carnea can use successfully as a biocontrol agent in an integrated program for controlling P. citri attacking citrus trees.
Role of Capnograghy during weaning from mechanical ventilation in patients with chronic obstructive pulmonary disease
QJM: An International Journal of Medicine
Background Chronic obstructive pulmonary disease (COPD) is characterized by persistent airflow li... more Background Chronic obstructive pulmonary disease (COPD) is characterized by persistent airflow limitation associated with an enhanced chronic inflammatory response in the airway, acute exacerbations of COPD can lead to progressive respiratory failure necessitating mechanical ventilation. Weaning of these patients may prove difficult and a spontaneous breath trial should be provided before the decision of extubation. Aim To evaluate the role of capnograghy in COPD patients during weaning from mechanical ventilation. Subject and methods This was a cross sectional prospective study conducted on 50 patients who were admitted at the Respiratory Intensive Care Unit of Abbassia Chest hospital and diagnosed as COPD and on mechanical ventilation. During the weaning trial, the role of capnography device evaluated considering the ability of Pet CO2 parameter in predicting hypercapnia and subsequently weaning outcome Results The changes in ABG reading before and after the SBT, PaCO2 and Pet CO2...
This paper presents a low power Field programmable Analog Array (FPAA) based on operational trans... more This paper presents a low power Field programmable Analog Array (FPAA) based on operational transconductance amplifier (OTA) implemented in 90nm 1.2V CMOS technology achieving an operating frequency of 288MHz. Different continuous time filters in a frequency range from 52MHz to 282MHz can be implemented on that FPAA design achieving a max power of 62 mWatt for a 6th order band pass filter.
This paper presents a low power Field programmable Analog Array (FPAA) based on operational trans... more This paper presents a low power Field programmable Analog Array (FPAA) based on operational transconductance amplifier (OTA) implemented in 90nm 1.2V CMOS technology achieving an operating frequency of 288MHz. Different continuous time filters in a frequency range from 52MHz to 282MHz can be implemented on that FPAA design achieving a max power of 62 mWatt for a 6th order band pass filter.
Uploads
Papers by karem Ali