Adapting a delay-based protocol to heterogeneous environments

We investigate the issues in making a delay-based protocol adaptive to heterogeneous environments. We assess and address the problems a delay-based protocol faces when competing with a loss-based protocol such as TCP. We investigate if noise and variability in delay measurements in environments such as cable and ADSL access networks impact the delay-based protocol behavior significantly. We investigate these issues in the context of incremental deployment of a new delay-based protocol, PERT. We propose design modifications to PERT to compete with the TCP flavor SACK. We show through simulations and real network experiments that, with the proposed changes, PERT experiences lower drop rates than SACK and leads to lower overall drop rates with different mixes of PERT and SACK protocols. Delay-based protocols, being less aggressive, have problems in fully utilizing a highspeed link while operating alone. We show that a single PERT flow can fully utilize a high-speed, high-delay link. We performed several experiments with diverse parameters and simulated numerous scenarios using ns-2. The results from simulations indicate that PERT can adapt to heterogeneous networks and can operate well in an environment of heterogeneous protocols and other miscellaneous scenarios like wireless networks (in the presence of channel errors). We also show that proposed changes retain the desirable properties of PERT such as low loss rates and fairness when operating alone. To see how the protocol performs with the real-world traffic, the protocol has also been implemented in the Linux kernel and tested through experiments on live networks, by measuring the throughput and losses between nodes in our lab at TAMU and different machines at diverse location across the globe on the planet-lab. The results from simulations indicate that PERT can compete with TCP in diverse environments and provides benefits as it is incrementally deployed. Results from real-network experiments strengthen this claim as PERT shows similar behavior with the real-world traffic

A study of cardiological autonomic neuropathy in Type 2 Diabetes Mellitus with reference to QT interval for its diagnosis

Background: Presence of cardiac autonomic neuropathy (CAN) is responsible for silent myocardial infarction and sudden death in diabetics. Hence recognizing cardiac dysautonomia early, which is asymptomatic will help to delay or arrest its progression.Methods: A cross-sectional study to evaluate the Prevalence of Cardiovascular Autonomic Neuropathy in Type 2 diabetes and correlate it with duration of Diabetes and to investigate the relationship between cardiac autonomic dysfunction and corrected QT interval.Results: In the study population, the prevalence of definite CAN was 8%, 24% and 58% in group A, B and C respectively. The prevalence of definite CAN increases with increase in duration of diabetes. P value <0.001 significant.Conclusions: A significant correlation is present between Cardiovascular autonomic dysfunction and QTc prolongation. QTc interval in the ECG can be used to diagnose Cardiovascular autonomic neuropathy with a reasonable sensitivity and specificity

Recurrent Stress-Induced Cardiomyopathy: A Case Report and Review Article

ABS is a unique acute cardiac syndrome and a recently recognized form of transient left ventricular dysfunction. It mimics ACS in clinical presentation (chest pain and dyspnea) and specific ECHO findings in the absence of significant coronary lesions. This rare entity accounts for 2.2% of ST segment elevation ACS. Pathophysiology mostly correlates to stress-induced catecholamine release. The syndrome is predominant in females, mostly in the postmenopausal age group. It should be initially managed according to the guidelines of ACS. The prognosis for apical ballooning syndrome is generally favorable with inpatient hospital mortality less than 2%. Reports of a single episode of ABS are common in recent medical literature; we report a rare case of recurrence that provides more insight into the nature of this unique syndrome

Adapting a delay-based protocol to heterogeneous environments

We investigate the issues in making a delay-based protocol adaptive to heterogeneous environments. We assess and address the problems a delay-based protocol faces when competing with a loss-based protocol such as TCP. We investigate if noise and variability in delay measurements in environments such as cable and ADSL access networks impact the delay-based protocol behavior significantly. We investigate these issues in the context of incremental deployment of a new delay-based protocol, PERT. We propose design modifications to PERT to compete with the TCP flavor SACK. We show through simulations and real network experiments that, with the proposed changes, PERT experiences lower drop rates than SACK and leads to lower overall drop rates with different mixes of PERT and SACK protocols. Delay-based protocols, being less aggressive, have problems in fully utilizing a highspeed link while operating alone. We show that a single PERT flow can fully utilize a high-speed, high-delay link. We performed several experiments with diverse parameters and simulated numerous scenarios using ns-2. The results from simulations indicate that PERT can adapt to heterogeneous networks and can operate well in an environment of heterogeneous protocols and other miscellaneous scenarios like wireless networks (in the presence of channel errors). We also show that proposed changes retain the desirable properties of PERT such as low loss rates and fairness when operating alone. To see how the protocol performs with the real-world traffic, the protocol has also been implemented in the Linux kernel and tested through experiments on live networks, by measuring the throughput and losses between nodes in our lab at TAMU and different machines at diverse location across the globe on the planet-lab. The results from simulations indicate that PERT can compete with TCP in diverse environments and provides benefits as it is incrementally deployed. Results from real-network experiments strengthen this claim as PERT shows similar behavior with the real-world traffic

Integrating Intercultural Communication Competence into Entrepreneurially-Minded Online Discussions

Abstract: The continued rise of the global economy, especially during COVID-19, has required stakeholders, including higher education, to think more strategically about preparing future university graduates with intercultural skill development. This study contributes to the literature by showing one approach whereby faculty can integrate intercultural communication competence into the STEM classroom via entrepreneurially-minded online discussions (a form of information literacy). This semester-long study applied a mixed methods approach. First, students participated in five online discussions, which were analyzed qualitatively to identify themes and patterns. Second, at the end of the semester, after completing the online discussions, students responded to a survey assessing their perceptions related to student learning and student satisfaction. The findings show that student perceptions of information literacy were high. Moreover, themes identified within the online discussions align well with the traditional communication process. Integrating intercultural competence into entrepreneurially-minded online discussions within the STEM classroom can be seen as “low hanging fruit” in that the return on investment for faculty is very high (i.e., requires minimal lecture time and promotes optimal connections to the real world)

Clinico hematological profile and outcome of anemia in children at tertiary care hospital, Karimnagar, Telangana, India

Background: Anemia is a common health problem worldwide. It is an important cause of morbidity and mortality of young and growing children in rural areas of developing countries. Young growing anemic children have various clinical symptoms, pallor, Jaundice, fever, cough, breathlessness, hyper pigmentation, tremors, and hepatosplenomegaly. The main objective is to study the clinical and haematological profile and variants of anemia in children of age 2 months to 14 years admitted in tertiary care hospital, Karimnagar.Methods: A retrospective study was carried out by studying medical records of hospital attached to Chalmeda Institute of Medical Sciences, Karimnagar between January 2010 to December 2014. Study population constitutes total number of 316 cases of anemia in children of age 2 months to 14 years admitted in tertiary care hospital of Karimnagar. Diagnosis of anemia was based on hemoglobin levels and on the basis of clinical presentations. Classification of anemia was done by clinical findings, complete blood picture with peripheral smear and hemoglobin electrophoresis.Results: In present study out of 316 cases, 173 were males and 143 were females.  It was found that 58% of children were anemic due to iron deficiency anemia, 27 % were having sickle cell disorder, 9 % were having Thalassemia, and 5 % with megaloblastic anemia and 2% with aplastic anemia.Conclusions: Besides haematological investigations for typing of anemia, Haemoglobin electrophoresis establishes the disease in haemoglobinopathies. Adequate health and healthy nutritional habits and prescription of Iron supplements are of great importance in prevention and management of anemia in children assisted by public health services.

Normalized weightage framework to report tangible and non-tangible data from heterogeneous and dynamic data sources within a context to assist in decision alignment

In a process involving decision making, both humans and machines prefer the data to be in a yes or no format. A number by itself to represent a quantifiable entity may not have enough value to make a decision until the data has been triangulated with other interrelated quantitative and qualitative data points and normalized onto a common scale. Our framework mentioned here in the proposal, helps in normalizing such quantitative and qualitative data from various data sources to a set of common metric for decision making

Effects of PARP inhibitors, SGLT2 inhibitors, and Colchicine on Doxorubicin-induced Premature Senescence Induced-Phenotype

https://openworks.mdanderson.org/sumexp22/1076/thumbnail.jp