Effect of system level structure and spectral distribution of the environment on the decoherence rate

Minimizing the effect of decoherence on a quantum register must be a central part of any strategy to realize scalable quantum information processing. Apart from the strength of the coupling to the environment, the decoherence rate is determined by the the system level structure and by the spectral composition of the noise trace that the environment generates. Here, we discuss a relatively simple model that allows us to study these different effects quantitatively in detail. We evaluate the effect that the perturbation has on an NMR system while it performs a Grover search algorithm.Comment: Generalizations are added. Comments are welcom

Evaluation of Waterhyacinth and Paddy Straw Waste for Culture of Oyster Mushrooms

Waterhyacinth ( Eichhornia crassipes (Mart.) Solms.) was evaluated at ratios of 25, 50 and 75% with paddy straw ( Oryza sativa L.) for oyster mushroom ( Pleurotus sajor-caju) cultivation. There was an increase in yield with decreasing ratio waterhyacinth

Unmasking the silent killer to heart health: An evaluation of cardiometabolic risk and screening in outpatient spinal cord injury rehabilitation

Objective: 1) Determine the prevalence of cardiometabolic disease (CMD) risk factors in Canadian outpatients with spinal cord injury or disease (SCI/D); and 2) Augment CMD screening practices to reflect evidence-based guidelines using quality improvement initiatives. Design: Chart audit of consecutive outpatients with SCI/D assessed after discharge from Parkwood Institute between October 2020 to December 2021 (n=78). Data collected included presence of and evidence-based screening for 4 CMD risk factors – obesity, hypertension, dyslipidemia, diabetes mellitus. Definitions for presence of these 4 CMD risk factors were established using clinical practice guidelines for persons with SCI/D. Results: All CMD risk factors were highly prevalent amongst outpatients with SCI/D. Two of every 5 outpatients had ≥ 3 risk factors, indicating the presence of established CMD. Obesity was the most prevalent risk factor (84.2%), followed by dyslipidemia (80.7%), hypertension (47.4%), and diabetes mellitus (44.6%). Outpatient clinic screening for hypertension and obesity across 79 visits (n=43) was completed in 15.2% and 11.4% of appointments respectively. Conclusions: The strikingly high CMD risk factor prevalence in this cohort of Canadian outpatients with SCI/D coupled with low screening rates in follow-up appointments reinforces the need for strategies to reduce preventable harm in the rehabilitation setting

Iterative quantum state transfer along a chain of nuclear spin qubits

Transferring quantum information between two qubits is a basic requirement for many applications in quantum communication and quantum information processing. In the iterative quantum state transfer (IQST) proposed by D. Burgarth et al. [Phys. Rev. A 75, 062327 (2007)], this is achieved by a static spin chain and a sequence of gate operations applied only to the receiving end of the chain. The only requirement on the spin chain is that it transfers a finite part of the input amplitude to the end of the chain, where the gate operations accumulate the information. For an appropriate sequence of evolutions and gate operations, the fidelity of the transfer can asymptotically approach unity. We demonstrate the principle of operation of this transfer scheme by implementing it in a nuclear magnetic resonance quantum information processor.Comment: Version for submission. Comments are welcom

Investigating adherence to screening guidelines for cardiometabolic disease in persons with spinal cord injury at the Parkwood Institute Outpatient Clinic

Persons with spinal cord injury (SCI) are at an increased risk of developing cardiometabolic disease (CMD) and related complications. To address this, the Paralyzed Veterans of America released a set of clinical practice guidelines with screening recommendations for CMD risk factors such as dyslipidemia, hypertension, obesity, and diabetes. Clinical data indicated that 25 patients out of a total of 48 (52%) are at an increased risk of developing cardiometabolic disease, as defined as having three or more risk factors present. In addition, a review of 30 intake forms from the Parkwood Institute Outpatient Clinic showed that hypertension and weight screenings were only completed 6 and 5 times respectively. Low rates of screening demonstrate the need for understanding and addressing barriers in the Outpatient Clinic. Reflections on current screening practices and the progression of risk factors in the SCI population will help to inform better treatment strategies for improving adherence and reducing cardiometabolic risk

The Effect Of COVID-19 On Male And Female Labor Supply.

This paper carries out an empirical analysis to answer how the COVID-19 pandemic impacted the labor force in Norway. More specifically how it impacted the female labor force in actual hours worked. This research has been done in many countries and the results tend to have a negative impact on women labor force. I am choosing Norway as my research country because Norway is ranked number three in the worked in gender equality and ranked as the best country to live in for women (Forum, 2021). As a result, the impacts of COVID-19 on the labor supply of women may be smaller than what has been found in other countries with a higher degree of gender inequality. First, I display a review of earlier research done in this field and discuss how economic theory is used to explain the difference between genders in the labor force. Second, I look into how Norway handled the pandemic. This paper studies the following research question: did COVID-19 have differential impact of labor supply of male employees than female employees? By using data from the Norwegian Labor Force Survey (AKU), I employ a difference- in-difference design and study the change in hours worked between male and female employees before and after the introduction of the pandemic. I find that the actual working hours for men decreased more than those of women after 2019. Overall, ac- tually working hours decreased after the pandemic. However, men do still work more actual hours than women.There is a disparity in hours worked between men and women, COVID-19 did have a differential impact on labour supply for men and women. Other factors like education and what type of industry you worked in had some say when it came to actual hours worked

VANILLIN EXTRACTED FROM PROSO MILLET AND BARNYARD MILLET INDUCE APOPTOSIS IN HT-29 AND MCF-7 CELL LINE THROUGH MITOCHONDRIA MEDIATED PATHWAY

Objective: The main aim of the study was to investigate the bioactive compound vanillin extracted from proso millet (compound 1), and barnyard millet (compound 2) induces apoptotic cell death and whether it is mediated through mitochondrial pathway in HT-29 and MCF-7 cell line.Methods: The cells were treated with 250 μg/ml and 1000 μg/ml concentration of extracted vanillin for 48 hrs. Cytochrome c release and expression level of pro-apoptotic protein Bax and caspase-9 were detected by western blot analysis.Results: The results reveal that extracted compounds increased the release of cytochrome c and upregulating the expression of Bax and caspase-9 as concentration increases in a dose-dependent manner.Conclusion: The study suggests that the vanillin compound extracted from these millets induces apoptotic cell death through a mitochondria-dependent pathway