Non-monotonic diffusion rates in atom-optics L\'{e}vy kicked rotor

The dynamics of chaotic Hamiltonian systems such as the kicked rotor continues to guide our understanding of transport and localization processes. The localized states of the quantum kicked rotor decay due to decoherence effects if subjected to stationary noise. The associated quantum diffusion increases monotonically as a function of a parameter characterising the noise distribution. In this work, for the Levy kicked atom-optics rotor, it is experimentally shown that by tuning a parameter characterizing the Levy distribution, quantum diffusion displays non-monotonic behaviour. The parameters for optimal diffusion rates are analytically obtained and they reveal a good agreement with the cold atom experiments and numerics. The non-monotonicity is shown to be a quantum effect that vanishes in the classical limit.Comment: 5 pages, revte

ANTIOXIDANT ACTIVITY OF HYDRO-ALCOHOLIC EXTRACT ON THE ROOTS OF NYCTANTHES ARBORTRISTIS

Objective: To determine the antioxidant activity of Nyctanthes arbortristis (Family-Oleaceae).Methods: The hydroalcoholic extract of the root of plant Nyctanthes arbortristis was taken into considerations to determine the phytochemicals present in it. The extracts of the roots were evaluated for antioxidant activity by using different in vitro model like Reducing Power Method and DPPH method.Results: In the current investigation it has been found that the Pet. Ether and Hydroalcoholic extracts showed potent antioxidant activity by reducing power, as the concentration of the extracts increased, the absorbance was also increased correspondingly.Conclusion: The hydroalcoholic extracts of this plant showed potent antioxidant activity against the standard drug (Kaempferol)

Design and Fabrication of Project on Power Generation using Rollers on Busy Highway

This paper presents design and fabrication of a project on power generation using rollers on busy highway. The exploratory set up has been manufactured to use vitality lost at speed breaker by vehicle .We have ascertained vitality lost by vehicle at speed 10 km\hr, 12km\hr, 15km\hr and we use the vitality lost, with the productivity of 0.4%, 0.45% ,0.48% separately. It has been presumed that speed is specifically corresponding to Electrical vitality delivered

Comparison of intrauterine insemination and timed intercourse following controlled ovarian hyperstimulation in unexplained infertility: a randomized controlled trial

Background: Being a diagnosis of exclusion the treatment options of unexplained infertility are often empiric. There is significant dilemma regarding the superiority of one over another. Despite increasing use of intrauterine insemination (IUI) in adjunct to controlled ovarian hyperstimulation (COH) there is scarcity of randomized controlled trials (RCT) from developing countries. Objective was to compare IUI and timed intercourse (TI) in super ovulated cycles among couples with unexplained infertility over one year.Methods: In this prospective randomized controlled trial total 85 patients were randomly assigned into group 1 (COH with IUI, N= 44) and group 2 (COH with TI, N=41). Patients underwent COH using sequential Clomiphene Citrate and injection human menopausal gonadotrophin followed by IUI in group 1 and timed intercourse in group 2. Either protocol was repeated for three consecutive cycles. Finally, both groups were compared for clinical pregnancy rate, adverse effects and acceptability of the treatment process and outcome. Comparison was done by Student’s unpaired t test for continuous and 2-tailed chi square test for categorical variables.Results: Clinical pregnancy rates following COH/IUI and COH/TI were 13.64% and 19.51% respectively. There was observable difference in the acceptability of the outcome (38.64% in IUI and 56.09% in TI group). All the results including complications and side effect rates were statistically insignificant.Conclusions: Present study failed to show any improvement of pregnancy rates following addition of IUI over TI and it raised the probability that the outcome of the procedure may not be well accepted

Assessing the techno-economic viability of a trigeneration system integrating ammonia-fuelled solid oxide fuel cell

In recent years, ammonia has gained traction as a clean fuel alternative and a promising energy carrier. In this study, a trigeneration system fuelled by ammonia has been conceptualised, integrating a solid oxide fuel cell stack for power generation, a hot water unit for heating, and an NH3-H2O absorption chiller for cooling. The main objective of this study is to conduct a comprehensive techno-economic feasibility assessment of the proposed trigeneration system. The system's performance was analysed for a UK supermarket requiring electricity, heating, and cooling. A detailed sensitivity analysis was performed to investigate the influence of significant operating parameters, including current density, fuel utilisation factor, and cell temperature, on the system's performance. The system can deliver maximum power, heating, and cooling outputs of 357.6 kW, 257.9 kW, and 46.99 kW, respectively. The trigeneration system is projected to achieve its highest exergy efficiency at 60.94%, with a maximum fuel energy saving ratio of 47.67%. The lowest levelised cost of energy (LCOE) is estimated to be £0.1232 per kWh. This study's objective is also aligned with United Nations Sustainable Development Goal (SDG) No. 7, which aims to achieve “Affordable and Clean Energy”

Reverse Polarization in Amino acid and Nucleotide Substitution Patterns Between Human–Mouse Orthologs of Two Compositional Extrema

Genome-wide analysis of sequence divergence patterns in 12 024 human–mouse orthologous pairs reveals, for the first time, that the trends in nucleotide and amino acid substitutions in orthologs of high and low GC composition are highly asymmetric and polarized to opposite directions. The entire dataset has been divided into three groups on the basis of the GC content at third codon sites of human genes: high, medium, and low. High-GC orthologs exhibit significant bias in favor of the replacements, Thr → Ala, Ser → Ala, Val → Ala, Lys → Arg, Asn → Ser, Ile → Val etc., from mouse to human, whereas in low-GC orthologs, the reverse trends prevail. In general, in the high-GC group, residues encoded by A/U-rich codons of mouse proteins tend to be replaced by the residues encoded by relatively G/C-rich codons in their human orthologs, whereas the opposite trend is observed among the low-GC orthologous pairs. The medium-GC group shares some trends with high-GC group and some with low-GC group. The only significant trend common in all groups of orthologs, irrespective of their GC bias, is (Asp)Mouse → (Glu)Human replacement. At the nucleotide level, high-GC orthologs have undergone a large excess of (A/T)Mouse → (G/C)Human substitutions over (G/C)Mouse → (A/T)Human at each codon position, whereas for low-GC orthologs, the reverse is true