A Sawtooth Permanent Magnetic Lattice for Ultracold Atoms and BECs

We propose a new permanent magnetic lattice for creating periodic arrays of Ioffe-Pritchard permanent magnetic microtraps for holding and controlling ultracold atoms and Bose-Einstein condensates (BECs). Lattice can be designed on thin layer of magnetic films such as $Tb_6$$Gd_10$$Fe_{80}$$Co_4$. In details, we investigate single layer and two crossed layers of sawtooth magnetic patterns with thicknesses of 50 and 500nm respectively with a periodicity of 1$\mu$m. Trap depth and frequencies can be changed via an applied bias field to handle tunneling rates between lattice sites. We present analytical expressions and using numerical calculations show that this lattice has non-zero potential minima to avoid majorana spin flips. One advantage of this lattice over previous ones is that it is easier to manufacture.Comment: 8 pages, 6 figure

Adjustment and Completion of BASNEF Model to Provide a New Model for Educating Large Populations in Relation to Cutaneous Leishmaniasis

Background: Educational models that have been created for educating small populations do not have enough efficacy for educating large populations, so based on this premise and also high prevalence of Cutaneous Leishmaniasis (CL) in the Islamic Republic of Iran and lack of efficient methods for CL control, this study was designed and done with the aim of applying BASNEF model to provide a new model for educating large populations in relation to Cutaneous Leishmaniasis. Methods: In a quasi-experimental study, 60 Volunteer Health Workers (VHWS) and 120 households that were resident in endemic areas of CL in Yazd were selected through census and multi-stage sampling method, respectively. Then, educational intervention was designed and implemented on the basis of BASNEF model. After educating VHWS based on BASNEF model, they were asked to educate households on the basis of BASNEF model. Before and after 3 months of VHWS training activities, data were collected in intervention and control groups via valid and reliable questionnaires and were analyzed with the SPSS software. Results: The mean score of knowledge, attitude, behavioral intention, enabling factors, behaviors and influence of subjective norms after educational intervention in households in experimental were significantly increased (P<0.05) while the changes in control group were not significant. Conclusions: This educational program led to empowering of VHWS and a change in their educational behavior which in turn led to preventive measures in households under study region. It can be concluded that the new educational model presented in this research, formed based on the BASNEF model, is able to educate a large population. Keywords: BASNEF Model, Volunteer Health Workers, Health Education, Cutaneous Leishmaniasi

Relationship between transactional leadership and knowledge management

All leaders do not possess same attitude or same perspective. There are many different leadership styles that can be exhibited by leaders in the political, business or other fields. A leadership style is a leader's style of providing direction, implementing plans, and motivating people. The Transactional style of leadership involves motivating and directing followers primarily through appealing to their own self-interest. Besides, Knowledge management (KM) is the process of capturing, developing, sharing, and effectively using organizational knowledge. It refers to a multi-disciplined approach to achieving organizational objectives by making the best use of knowledge. We knows that the leadership style is directly influential in organization's tendency and manner of facing processes and steps of knowledge management, so in this paper the relationship between Transactional Leadership and Knowledge Management in Plastic Industry in Shiraz-Iran is examined. We’ve used of descriptive statistics technique to analyze demographic variables and to investigate the hypotheses; we have used Pearson Solidarity Test and Spearman.Keywords: Transactional Leadership, Knowledge Management, Plastic Industr

New approach for regional crop yield gap analysis in the Borujen Plain, Iran

This study was performed to analyze the regional crop yield gap for potential and water-limited production situations in the cold-semiarid climate at Borujen basin, Iran. Experimental data were used for model calibration and evaluation of WOFOST as a crop growth simulation model. WOFOST divides wheat growth into three key development stages: 1) emergence, 2) flowering and 3) physiological maturity. The length of growth period and phenology was calibrated using the field experiments results. In general, simulated results matched well with the measured parameters in the calibration procedure. Calibrated results of WOFOST model are linked to a geographic information system, in order, to get easier their presentation and also to contribute to identification of hotspots for interventions aimed at yield improvements. Finally, the results of quantitative analysis (yield estimation in different wheat cropping systems) performed on four different agro-ecological zones, include: 1) yield gaps = 4.2 to 6.2 Mg/ha, 2) yield gaps = 3 to 3.6 Mg/ha, 3) yield gaps &lt; 2.4 Mg/ha, and 4) is unsuitable area. This yield gap between potential and rainfed production system is due to rainfall period during spring when temperature is not a limiting factor for wheat growth. Borujen Basin has semiarid climatic conditions with cold winter and winter precipitation. For the sake of it, temperature was a decisive factor during rainfall seasons, limiting the crop growth period. This study demonstrates that WOFOST model can be used to analyze cropping systems and accurately simulate regional wheat yields in cold semi arid climates.Key words: GIS, yield gaps, wheat, suitability, WOFOST

Continuity-Aware Scheduling Algorithm for Scalable Video Streaming

The consumer demand for retrieving and delivering visual content through consumer electronic devices has increased rapidly in recent years. The quality of video in packet networks is susceptible to certain traffic characteristics: average bandwidth availability, loss, delay and delay variation (jitter). This paper presents a scheduling algorithm that modifies the stream of scalable video to combat jitter. The algorithm provides unequal look-ahead by safeguarding the base layer (without the need for overhead) of the scalable video. The results of the experiments show that our scheduling algorithm reduces the number of frames with a violated deadline and significantly improves the continuity of the video stream without compromising the average Y Peek Signal-to-Noise Ratio (PSNR)

Groundwater Lowering in Deep Excavation (Case Study: Foundation Excavation of Shahid Madani Dam)

In many big civil constructions, deep excavation is an essential part of project and groundwater control in excavation process is the prominent tasks. In this paper while mentioning the risks of deep excavation, the solutions of underground water control have been explained and different methods of groundwater control in regard to financial conditions, different soil condition and various depths have been investigated. Groundwater control in foundation excavation of Shahid Madani Dam as a case study is presented. Depth of foundation excavation was about 50 meters in tight valley and excavation was performed under groundwater table. This excavation is one of the deepest excavations in Iran and it has some specific problems related to topographical and geotechnical condition in dam site. Finally the proper methods for groundwater control are presented and recommended. Measurements in excavation period and in the middle of dam body construction have shown that this design method had a good performance

Multiple streaming at the network edge

Streaming video over the Internet, including cellular networks, has now become commonplace. Network operators typically use multicasting or variations of multiple unicasting to deliver streams to the user terminal in a controlled fashion. An emerging alternative is P2P streaming, which is theoretically more scalable but suffers from other issues arising from the dynamic nature of the system. User’s terminals become streaming nodes but these are not constantly connected. Another issue is that they are based on logical overlays, which are not optimized for the physical underlay infrastructure. An important proposition is that of finding effective ways to increase the resilience of the overlay whilst at the same time not conflicting with the network. In this article we look at the combination of two techniques, multi-streaming (redundancy) and locality (network efficiency) in the context of both live and video-on-demand streaming. We introduce a new technique and assess it via a comparative, simulation-based study. We find that redundancy affects network utilization only marginally if traffic is kept at the edges via localization technique

Inflammatory myofibroblastic tumor of the larynx: A case report

Introduction: Inflammatory myofibroblastic pseudotumors are initially described in the lung and various extrapulmonary sites such as the orbits, palatine tonsils, ears, gingiva, pterygomaxillary space, and periodontal tissues. These tumors rarely involve the larynx and predilection to the glottis occurs in an indolent manner. Case Report: This case describes a laryngeal myofibroblastic tumor in a 46-year-old woman who presented with an aggressive tumor that extended to the floor of the mouth and the base of the tongue. Extended supraglottic laryngectomy was undertaken for the patient. The diagnosis was spindle cell proliferation with dense lymphoplasma cell infiltration compatible with inflammatory myofibroblastic tumor (Inflammatory pseudotumor or plasma cell granuloma). Definitive diagnosis was achieved with immunohistochemical (IHC) staining. Conclusion: We believe that further IHC studies are required to define the true nature of these tumors especially for those that behave in an aggressive pattern