Minimal and Direct Access Surgery in Urology

An alternative method to laparoscopic surgery has been developed for urological procedures. The surgery is minimal access because the length of the single skin incision ranges from 3–6 cm depending on the type of operation. It is direct access because the surgeon sees the operative area directly and stereoscopically by eye without video-optical support. The procedure requires a special open-lumen retractorscope (JakoscopeTM) with a high intensity fiberoptic light system and modified standard hand instruments. Among the procedures performed nephrectomy, ureterolithotomy, prostatic adenomectomy, spermatic vein ligation and others have been performed. The kidney procedures have been operated retroperitoneally through a minilumbotomy incision. The procedures are simple, rapid and the instruments are inexpensive. The postoperative pain and morbidity are comparable to the laparoscopic approach

Factors affecting smallholder paddy rice farmer's choice of marketing channel in the northern region of Ghana : a thesis submitted in partial fulfilment of the requirements for the degree of Master of AgriCommerce at Massey University, Palmerston North, New Zealand

The scientific community advocates that enhancing smallholder farmers’ access to reliable, ready and direct market channel is a prerequisite to the attainment of sustainable food supply and poverty reduction in the developing world including Ghana. However, the smallholder farmers' access to direct marketing channels in Ghana has been a critical challenge; therefore, this study aims to analyse the factors that influence smallholder paddy rice farmers’ decision to participate in either the direct marketing channel specifically processors or the indirect marketing channel specifically, middlemen in the Northern Region of Ghana. Purposive sampling was used to select farmers from three rice growing districts in the Northern Region of Ghana. The study employed the Binary Logit regression model in the analysis of the factors affecting farmers’ choices of marketing channel. A t-test was also used to compare the mean yields and revenues generated by farmers who marketed their paddy rice outputs in the direct and indirect marketing channels. A five-point Likert scale was used to rank the constraints that affect the production and marketing of rice output among rice farmers. The study revealed that a lower percentage of farmers sold their paddy rice output to processors (direct channel). The Logit model showed that farm size, the price of paddy rice output per 85kg bag, access to market information and access to credit increased the farmers' participation in the direct marketing channel whereas payment period and ownership of bicycle reduced farmers' their participation. The t-test result revealed that the participation in the direct marketing channel raised farmers' revenue. The study further showed that limited access to credit, poor climatic condition, the high cost of labour, the high cost of farm inputs and low mechanisation were the top five production challenges they encountered in their rice production. Low market prices, post-harvest losses, the high cost of transportation, limited market option and low demand for local rice were the top-ranked marketing constraints reported by farmers. The study concludes that it is more profitable for farmers to sell their paddy rice output to processors instead of middlemen. Therefore, policymakers need to incorporate the significant factors of farmers’ choices of marketing channels in the formulation of agricultural policy that seeks to promote farmers’ access to direct marketing channels in developing countries including Ghana

Avoiding Rotated Bitboards with Direct Lookup

This paper describes an approach for obtaining direct access to the attacked squares of sliding pieces without resorting to rotated bitboards. The technique involves creating four hash tables using the built in hash arrays from an interpreted, high level language. The rank, file, and diagonal occupancy are first isolated by masking the desired portion of the board. The attacked squares are then directly retrieved from the hash tables. Maintaining incrementally updated rotated bitboards becomes unnecessary as does all the updating, mapping and shifting required to access the attacked squares. Finally, rotated bitboard move generation speed is compared with that of the direct hash table lookup method.Comment: 7 pages, 1 figure, 4 listings; replaced test positions, fixed typo

Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels

Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over Rayleigh channels is performed based on the characteristic-function approach. Its accuracy is verified by our numerical simulation results and also compared with those of the Gaussian approximation. Index Terms—Asynchronous direct-sequence code-division multiple-access (DS-CDMA), bit-error-ratio (BER), precise, QPSK, quarternary spreading, Rayleigh

The ATM Reforms - New Evidence from Survey and Market Data

Following the introduction of direct charging in March 2009, ATM pricing has become more transparent and flexible. Cardholders continue to respond to the clearer price signals by changing their cash withdrawal behaviour to avoid paying direct charges, and newly available data indicate that behaviour varies across age groups and geographic locations. For the small proportion of transactions that do incur a direct charge, flexibility in ATM pricing has led to a distinct pattern in these charges across different types of ATM locations. Variations in business models between ATM owners mean that most consumers have access to a large number of ATMs on which they pay no direct charge, while it remains possible for ATMs to be profitably deployed in high-cost or low-volume locations.ATMs; ATM reforms; ATM fees; foreign fees; foreign ATMs; direct charging; ATM surcharging; interchange fees; ATM Access Regime; ATM Deployment; payments reform; consumer use study; payment patterns; consumer behaviour

Foreign Direct Investment, Access to Finance, and Innovation Activity in Chinese Enterprises

This paper investigates the link between inward FDI and innovation activity in China, using a very comprehensive and recent firm level database. We pay particular attention to the impact of domestic access to finance. Our results show that firms with foreign capital participation or those with good access to domestic bank loans innovate more than others do. We also find that inward FDI at the sectoral level is positively associated with domestic innovative activity only if firms engage in own R&D or if they have good access to domestic finance. However, access to finance only plays a role for private or collectively owned firms, less so for state-owned enterprises. Furthermore, we distinguish the effect of sector level inward FDI into technology transfer and FDI affecting domestic credit opportunities and find that the latter is of very little significance for SOEs and is also independent of their access to finance. By contrast, it is an important channel through which FDI affects the innovation of domestic private and collectively owned enterprises.Innovation, FDI, finance, China

Foreign Direct Investment and Exchange Rate Pass-through: Access to Foreign Markets

We examine the effects of foreign direct investment on exchange rate pass-through. By distinguishing the purpose of foreign direct investment, different hypothesis for production subsidiary and distribution subsidiary can be tested. We are able to find a clear evidence of “power-shift” effect and “elimination” effect of distribution subsidiary, with foreign direct investment data properly constructed to capture the timing of establishment. We also obtained significant downward effect of local production, conforming to the previous research.distribution subsidiary; exchange rate pass-through; foreign direct investment

Integrated out-of-hours care arrangements in England: observational study of progress towards single call access via NHS Direct and impact on the wider health system

Objectives: To assess the extent of service integration achieved within general practice cooperatives and NHS Direct sites participating in the Department of Health’s national “Exemplar Programme” for single call access to out-of-hours care via NHS Direct. To assess the impact of integrated out-of-hours care arrangements upon general practice cooperatives and the wider health system (use of emergency departments, 999 ambulance services, and minor injuries units). Design: Observational before and after study of demand, activity, and trends in the use of other health services. Setting: Thirty four English general practice cooperatives with NHS Direct partners (“exemplars”) of which four acted as “case exemplars”. Also 10 control cooperatives for comparison. Main Outcome Measures: Extent of integration achieved (defined as the proportion of hours and the proportion of general practice patients covered by integrated arrangements), patterns of general practice cooperative demand and activity and trends in use of the wider health system in the first year. Results: Of 31 distinct exemplars 21 (68%) integrated all out-of-hours call management by March 2004. Nine (29%) established single call access for all patients. In the only case exemplar where direct comparison was possible, cooperative nurse telephone triage before integration completed a higher proportion of calls with telephone advice than did NHS Direct afterwards (39% v 30%; p<0.0001). The proportion of calls completed by NHS Direct telephone advice at other sites was lower. There is evidence for transfer of demand from case exemplars to 999 ambulance services. A downturn in overall demand for care seen in two case exemplars was also seen in control sites. Conclusion: The new model of out-of-hours care was implemented in a variety of settings across England by new partnerships between general practice cooperatives and NHS Direct. Single call access was not widely implemented and most patients needed to make at least two telephone calls to contact the service. In the first year, integration may have produced some reduction in total demand, but this may have been accompanied by shifts from one part of the local health system to another. NHS Direct demonstrated capability in handling calls but may not currently have sufficient capacity to support national implementation

First results of the SOAP project. Open access publishing in 2010

The SOAP (Study of Open Access Publishing) project has compiled data on the present offer for open access publishing in online peer-reviewed journals. Starting from the Directory of Open Access Journals, several sources of data are considered, including inspection of journal web site and direct inquiries within the publishing industry. Several results are derived and discussed, together with their correlations: the number of open access journals and articles; their subject area; the starting date of open access journals; the size and business models of open access publishers; the licensing models; the presence of an impact factor; the uptake of hybrid open access.Comment: Submitted to PLoS ON

Two conversational languages for control theoretical computations in the time sharing mode

Two conversational languages for control theory applications on direct-access time sharing compute