Tomonaga-Luttinger physics in electronic quantum circuits

In one-dimensional conductors, interactions result in correlated electronic systems. At low energy, a hallmark signature of the so-called Tomonaga-Luttinger liquids (TLL) is the universal conductance curve predicted in presence of an impurity. A seemingly different topic is the quantum laws of electricity, when distinct quantum conductors are assembled in a circuit. In particular, the conductances are suppressed at low energy, a phenomenon called dynamical Coulomb blockade (DCB). Here we investigate the conductance of mesoscopic circuits constituted by a short single-channel quantum conductor in series with a resistance, and demonstrate a proposed link to TLL physics. We reformulate and establish experimentally a recently derived phenomenological expression for the conductance using a wide range of circuits, including carbon nanotube data obtained elsewhere. By confronting both conductance data and phenomenological expression with the universal TLL curve, we demonstrate experimentally the predicted mapping between DCB and the transport across a TLL with an impurity.Comment: 9p,6fig+SI; to be published in nature comm; v2: mapping extended to finite range interactions, added discussion and SI material, added reference

Selective area growth and characterization of InGaN nano-disks implemented in GaN nanocolumns with different top morphologies

This work reports on the morphology control of the selective area growth of GaN-based nanostructures on c-plane GaN templates. By decreasing the substrate temperature, the nanostructures morphology changes from pyramidal islands (no vertical m-planes), to GaN nanocolumns with top semipolar r-planes, and further to GaN nanocolumns with top polar c-planes. When growing InGaN nano-disks embedded into the GaN nanocolumns, the different morphologies mentioned lead to different optical properties, due to the semi-polar and polar nature of the r-planes and c-planes involved. These differences are assessed by photoluminescence measurements at low temperature and correlated to the specific nano-disk geometry

Inferring Energy Bounds via Static Program Analysis and Evolutionary Modeling of Basic Blocks

The ever increasing number and complexity of energy-bound devices (such as the ones used in Internet of Things applications, smart phones, and mission critical systems) pose an important challenge on techniques to optimize their energy consumption and to verify that they will perform their function within the available energy budget. In this work we address this challenge from the software point of view and propose a novel parametric approach to estimating tight bounds on the energy consumed by program executions that are practical for their application to energy verification and optimization. Our approach divides a program into basic (branchless) blocks and estimates the maximal and minimal energy consumption for each block using an evolutionary algorithm. Then it combines the obtained values according to the program control flow, using static analysis, to infer functions that give both upper and lower bounds on the energy consumption of the whole program and its procedures as functions on input data sizes. We have tested our approach on (C-like) embedded programs running on the XMOS hardware platform. However, our method is general enough to be applied to other microprocessor architectures and programming languages. The bounds obtained by our prototype implementation can be tight while remaining on the safe side of budgets in practice, as shown by our experimental evaluation.Comment: Pre-proceedings paper presented at the 27th International Symposium on Logic-Based Program Synthesis and Transformation (LOPSTR 2017), Namur, Belgium, 10-12 October 2017 (arXiv:1708.07854). Improved version of the one presented at the HIP3ES 2016 workshop (v1): more experimental results (added benchmark to Table 1, added figure for new benchmark, added Table 3), improved Fig. 1, added Fig.

The Effect of Widowhood on the Income Generation and Well-Being of Rural Women in Rivers State, Nigeria

The Study examined the effect of widowhood on the Well-being of rural women in Rivers State, Nigeria. Specifically the objectives were: to determine the livelihood activities of rural women in Rivers State, and ascertain the level of income from such livelihood activation and determine their level of satisfaction and wellbeing. The sample population used for the study was 300 rural women (155 widows and 145 non-widows) sampled using multiple sampling techniques. Primary data were gathered using structure questionnaire in the pattern of Likert 4–point rating scale of Very High, high, low and Very Low and recorded responses during Focus Group Discussions (FGD). To elicit responses in answer to objectives 2 and 3. Data were analyzed using percentage, mean and Standard Deviation while the hypothesis were tested using Z–test and Pearson Product Moment Correlative coefficient. The findings include: that majority of the rural women earned their living from varied livelihood activities, with low level of income, too meager to satisfy their basic needs. That non-widow enjoy better livelihood than widows due to all manners of support from their spouses; which widows do not enjoy. Also that widowhood limits the livelihood opportunities of widows, reduce their income earning capacity, thereby negatively affecting their well-being. It was therefore, recommended that rural women should be economically empowered through deliberate policies of government at all levels to adequately prepare them for the challenges of widowhood. Key words: Effect, widowhood, well being, Rural Women

Improving Students' Reading Comprehension of Recount Text Through Question Answer Relationship Strategy

This research intended to improve students' reading comprehension of recount text through Question Answer Relationship (QAR) strategy on the eighth grade students of SMP Haebat Islam Gontong Kubu Raya. The research method that used was Classroom Action Research (CAR) which consists of three cycles. To measure the students' improvement on reading comprehension, the writer administered the evaluation test. The research finding showed that QAR strategy improved students' reading comprehension. Based on the analysis of the students' test result, QAR strategy made students achievement improved in every cycle. In the first cycle, the students still had difficulty in comprehending the recount text, both text explicit and text implicit information. Students' mean score was 61.17. In the second cycle, students' ability in identify text explicit information was better compared to the previous cycle, their ability in answer Right There questions improved. Students' mean score was 77.5. In the third cycle, the students made significant improvement in comprehending text implicit information. It showed by students' ability in answer the Think & Search questions improved. The students' mean score was 83.33 which categorized as good to excellent

Designing Anti-corruption Comic in Teaching Vocabulary

: The purpose of this research is to design teaching material to help students in learning vocabulary with anti-corruption topic in supporting character education to students in SMA Muhammadiyah 1 Pontianak academic year 2015/2016. The completed research was implemented to the first semester of eleventh students in SMA Muhamadiyah 1 Pontianak. There were 30 students who actively involved in this research. The method of this research was development research which consisted of four phases: analyze, design, develop, and implement or called ADDI. The result of the research is a design of teaching material comic to help students in learning vocabulary with anti-corruption topic in supporting their character education. The comic was used for one class meeting on Giving Suggestion topic. On the implementation, based on the observation and feedbacks both from the students and the teacher, it was found that anti-corruption comic was USAble for students in learning vocabulary to support their character education of anti-corruption on Giving Suggestion topic

Operation Of The NuMi Beam Monitoring System

The NuMI (Neutrinos at the Main Injector) facility produces an intense neutrino beam for experiments. The NuMI Beam Monitoring system consists of four arrays of ion chambers that measure the intensity and distribution of the remnant hadron and tertiary muon beams produced in association with the neutrinos. The ion chambers operate in an environment of high particle fluxes and high radiation.Physic

A Study to Analyze the Efficacy of Maitland’s Mobilization Technique and Neuromuscular Electrical Stimulation on Pain and Hand Grip Strength in Patients with Post Colle’s Fracture Stiffness

Abstract- BACKGROUND: Colle’s fracture is a very common extra-articular fracture that occurs as the result of a fall on out stretched hand (FOOSH). Although Colle’s fractures are commonly seen in all age groups and demographics, they are particularly common in osteoporotic individuals and as such are more frequently seen in elderly women. Some complications are associated with injury itself. The complications such as persistent neuropathy of median nerve, ulnar nerve or radial nerve, malunited fracture and post traumatic stiffness have been reported in 1 out of 3 patients. Rehabilitation of fractures is a very important thing because of the limitations produced by improper management can lead to stiffness, deformity and limitation of functions. OBJECTIVE: The purpose of the study was to find out the effects of Maitland’s mobilization with Neuro-Muscular Electrical Stimulation (NMES) on pain and hand grip strength in patients with post Colle’s fracture stiffness. DESIGN: Pre- test and Post- test experimental study desig

Gaussian decomposition of HI surveys. IV. Galactic intermediate- and high-velocity clouds

Traditionally IVC and HVC were defined to be concentrations of HI gas, with line-of-sight velocities that are inconsistent with data on the differential rotation of the Galaxy. We demonstrate that IVCs and HVCs can be identified from certain density enhancements in (V_C, FWHM) distribution of Gaussians, representing the Galactic HI 21 cm radio lines. We study the Gaussians, which parameters fall into the regions of the phase-space density enhancements about $(V_C, FWHM) = (-131, 27), (164, 26) and (-49 km/s, 23 km/s). The sky distribution of the Gaussians, corresponding to the first two concentrations, very well represents the sky distribution of HVCs, as obtained on the basis of the traditional definition of these objects. The Gaussians of the last concentration correspond to IVCs. Based on this identification, the division line between IVCs and HVCs can be drawn at about |V_C| = 74 km/s, and IVCs can be identified down to velocities of about |V_C| = 24 km/s. Traces of both IVCs and HVCs can also be seen in the sky distribution of Gaussians with FWHM = 7.3 km/s. In HVCs, these cold cores have small angular dimensions and low observed brightness temperatures T_b. In IVCs, the cores are both larger and brighter. This definition of IVCs and HVCs is less dependant than the traditional one, on the differential rotation model of the Galaxy. The consideration of line-width information may enable IVCs and HVCs to be better distinguished from each other, and from the ordinary Galactic HIComment: 9 pages, 7 figures. Accepted for publication in A&A. High-resolution version available at http://www.aai.ee/~urmas/ast/HVCc.pdf (12.4 MBaits