112 research outputs found
Cytophagic Histiocytic Panniculitis (CHP) in a Patient with SLE Found after Autopsy: When a Rash Is "Complicated!"
Introduction:
Cytophagic histolytic panniculitis (CHP) is a clinical disorder characterized by nodular panniculitis of the subcutaneous adipose tissue. It was first described in 1980 by Winkelmann. Histologically it is described as an infiltration of the adipose tissue by T- lymphocytes and phagocytic macrophages (also known as "bean bag cells"). Most of the cases are reported under the age of 50 and is a rare cause of panniculitis. We report a case of CHP in a young patient who presented to our emergency room (ER).
Case Summary:
A 39-year-old African American woman who presented to our hospital with lethargy, progressive confusion, and generalized rash involving both lower extremities of 1 week duration. She had a history of pancytopenia and focal proliferative and membranous lupus nephritis classes 3 and 5. Her physical examination was remarkable for bilateral lower extremity pitting edema and a desquamating rash on both of her legs. The Nicolsky sign was positive. She was noted to be hypotensive and was started on intravenous fluids and broad spectrum antibiotics. Routine laboratory tests revealed severe pancytopenia, with a hemoglobin of 3.9 g/dl, white blood cell count 600/ul, and platelet count of 11000/ul. Within an hour of arrival to the ER she developed acute respiratory failure. She was intubated and placed on mechanical ventilation. She developed shock requiring vasopressors. No imaging could be done due to her unstable condition. Four hours after her initial presentation she developed asystole and expired. Postmortem histopathology of the adipose tissue revealed CHP.
Conclusion:
CHP can be rapidly fatal. The treatment involves high dose of intravenous steroids and immunosuppressants such as cyclosporine
Experiences with AR plots: A travel time augmented reality game
Digital games have the potential for changing attitudes towards social issues such as climate change and sustainability. These games don’t have to be based on fixed computing and with the rise of smart phone, they can make use of a range of sensor and augmented reality technologies. This paper presents the experience of developing AR Plots, a prototype locative game with an augmented reality interface. It is a game designed to fit in with the fractured nature of travel time on public transport. This paper discusses technical challenges, usability issues and game design approaches used to work within these constraints
Biomass energy in Bangladesh: current status and prospects
Bangladesh has been experiencing several problems over the past few decades. These include over population, energy crisis and global warming, etc. Adequate amount of power generation in a sustainable way is an important issue for rapidly increasing population and economic development. Renewable energy can play an effective role to meet energy demand. Since it is an agrarian country, biomass is one of the potential renewable energy sources in Bangladesh. Agricultural crop residues, animal manure and municipal solid waste are the major sources of biomass energy in the country. This paper presents the scope, potential and technologies related to the use of biomass resources. The study also discusses the biomass projects undertaken by the government and non-government organizations, plans and strategies to promote biomass technologies in Bangladesh
Ruin Theory for Dynamic Spectrum Allocation in LTE-U Networks
LTE in the unlicensed band (LTE-U) is a promising solution to overcome the
scarcity of the wireless spectrum. However, to reap the benefits of LTE-U, it
is essential to maintain its effective coexistence with WiFi systems. Such a
coexistence, hence, constitutes a major challenge for LTE-U deployment. In this
paper, the problem of unlicensed spectrum sharing among WiFi and LTE-U system
is studied. In particular, a fair time sharing model based on \emph{ruin
theory} is proposed to share redundant spectral resources from the unlicensed
band with LTE-U without jeopardizing the performance of the WiFi system.
Fairness among both WiFi and LTE-U is maintained by applying the concept of the
probability of ruin. In particular, the probability of ruin is used to perform
efficient duty-cycle allocation in LTE-U, so as to provide fairness to the WiFi
system and maintain certain WiFi performance. Simulation results show that the
proposed ruin-based algorithm provides better fairness to the WiFi system as
compared to equal duty-cycle sharing among WiFi and LTE-U.Comment: Accepted in IEEE Communications Letters (09-Dec 2018
State estimation technique for a planetary robotic rover
Given the long traverse times and severe environmental constraints on a planet like Mars, the only option feasible now is to observe and explore the planet through more sophisticated planetary rovers. To achieve increasingly ambitious mission objectives under such extreme conditions, the rovers must have autonomy. Increased autonomy, obviously, relies on the quality of estimates of rover's state i.e. its position and orientation relative to some starting frame of reference. This research presents a state estimation approach based on Extended Kalman Filter (EKF) to fuse distance from odometry and attitude from an Inertial Measurement Unit (IMU), thus mitigating the errors generated by the use of either system alone. To simulate a Sun-sensor based approach for absolute corrections, a magnetic compass was used to give absolute heading updates. The technique was implemented on MotherBot, a custom-designed skid steered rover. Experimental results validate the application of the presented estimation strategy. It showed an error range within 3% of the distance travelled as compared to about 8% error obtained from direct fusion
The use of folic acid in dengue: Has it any value?
Folic acid is used in dengue patients. Our study aims to compare the duration of recovery of thrombocytopenia in patients with dengue infection who received folic acid and those who did not. We retrospectively reviewed the medical records of adult patients admitted over six years with a diagnosis of dengue. Of 2216 patients, 1464 fulfilled the inclusion criteria. Group A were those patients who received folic acid and group B were those who did not. A total of 1322 (90.3%) patients received folic acid. The mean time period required for platelets to double the nadir was 1.7 (±2.2) days in both groups A and B ( P = 0.89). In conclusion, there is no significant difference in the recovery of thrombocytopenia in patients with dengue fever who received folic and those who did not receive folic acid
Prediction of Soil Macronutrients Using Machine Learning Algorithm
In this research work, machine learning algorithms were applied to find the relationship between independent variables and dependent variables for soil data analysis. The independent variables include moisture, temperature, soil pH, Cation Exchange Capacity(CEC) whereas, the dependent variables include Nitrogen, Phosphorus and Potassium (NPK). This research concludes relationships between Phosphorus, Potassium, soil pH and CEC; Nitrogen and soil moisture and temperature using machine learning(ML) algorithms so as to deduce NPK content of soil. A comparative analysis with obtained results from each ML method is also presented. Machine learning algorithms are best performed on data with multiple independent variables. The values computed for nitrogen relationship were more accurate than PK relationship values. The accuracy of data set I was less than data set II. A large data set would produce more accurate results for both data sets
Cellular Services Packages and their Impact on Social Values of Youth
Youth plays a significant role in building of the nation and in the development of a country. Their adoption, aspiration, and objective lead towards change in social value of a culture. Ongoing study investigates the impact of telecom cellular services packages like late night call & unlimited Short Messaging Service (SMS) on the social values of Pakistani youth. In today’s competitive environment cellular companies are mainly targeting youth through their advertisements and would like the youth to get indulge in these activities in order to increase their sales but the point is up to what extent youth showing receptiveness and emotional attachment to these packages. Study was conducted in capital city of Pakistan i.e. Islamabad, mainly considering three famous universities; Iqra University, Bahria University & Foundation University with the sample of 250 respondents; convenient sampling technique is used & results are measured using multiple regression test. Major findings concluded that cellular advertisements of unlimited Short Messaging Service (SMS) and late night call packages have a negative impact on youth but youth is still willing to accept these advertisements as they are negatively attached to the advertisement and use of these packages
Sehat Sahulat Program Effect on Patients Presenting to Secondary Level Hospital in Mardan
OBJECTIVES
The aim was to find the difference between government and private hospitals at the Mardan secondary level for sehat sahulat card effect on patients for their selection of hospital, dates, and time issues for elective and emergency cases with department facilities.
METHODOLOGY
This quantitative cross-sectional study was conducted to see the difference between the government and private hospitals for sehat the sahulat program effect on patients. Patients care is important on both sides but to find out the difference where more work should be done to achieve universal global health under the Khyber Pakhtunkhwa government for the benefit of their people’s health.
RESULTS
Total patients 10112 visited District Head Quarter (DHQ) hospital from February 2021 to February 2022 while 5672 were in a private hospital in which the ratio for gynaecology was 19 % (854 pts. DHQ) and 31% (1652) private hospital. Medical admissions were 2224 (50%) for a government hospital and none for private while surgical admissions were 1379 (31%) for government and 2665 (50%) for private hospitals. The significant ratio for chi-sq was P<0.5
CONCLUSION
Government hospital flow of patients is more than the private sector in admission ratio for medical cases then surgical while private has more flow for surgical admission than medical with all facilities provided on the desk and timely managed at the time of admission. Seniorm consultant’s ratio of surgeries in private is more than in government hospitals
Mentoring and its Effects on Turnover Intensions in Perspective of Pakistan’s Telecom Sector
In today’s era of towering competition the retention of workforce is highly desirable for long term success of any organization. The employees serve as backbone for any organization and are responsible for attaining the laid down objectives of the organization. The ongoing study investigates the effects of mentoring on turnover intensions of employees working in telecom sector of Pakistan. Researchers retrieved data with the help of questionnaires based on five point likert scale from almost 300 employees working in telecom organizations of Pakistan. Multiple regressions were used to analyze the collected data. Result shows that mentoring mostly is negatively associated with turnover intension because employee was not satisfied with mentoring and commitment in employees is only due to experienced learning which helps to develop additional skills in employee
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