9 research outputs found

    Preventing phone theft and robbery: the need for government action and international coordination

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    The banning of stolen handsets from networks has been around for 20 years, but remains little used internationally. Where used, its effectiveness is hindered by implementation problems, reprogramming, easy fencing opportunities, and international trafficking. Kill-switches where the user remotely disables a handset and deletes data have potential but, if non-permanent, are likely to experience similar limitations. This study proposes a set of responses to be adopted by national governments with international coordination

    Mobile Phone Reprogramming: Its Extent and Prevention

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    Reprogramming involves hacking the software of a mobile phone to change its identity. A handset's international mobile equipment identity number (equivalent to a car's vehicle identification number) is altered to enable illegal re-sale, thus facilitating theft and robbery of mobiles. The extent of the problem has not been adequately measured and so this study presents two approaches. The first was an on-street survey of owners that examined their mobile phones. The second was an examination of mobile phones in lost property offices. A conservative estimate is that 5% of the sample of mobiles were stolen or reprogrammed. Studies with larger representative samples are needed but, if representative, this suggests that millions of stolen/reprogrammed mobiles are in circulation in the UK. Possibilities for policing and prevention are discussed

    EFFECT OF CITRUS ROOTSTOCKS ON LEAF MINERAL COMPOSITION OF 'OKITSU', 'CLAUSELLINA', AND 'SILVERHILL' MANDARIN CULTIVARS

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    Citrus performance is strongly related with rootstock. This study was conducted to investigate leaf nutrient contents of 'Okitsu', 'Clausellina' and 'Silverhill' mandarin cultivars budded onto sour orange, 'Carrizo' and 'Troyer' citrange rootstocks in Dortyol, Turkey in 2004 and 2005. The maximum nitrogen (N), potassium (K), and copper (Cu) contents were determined for 'Clausellina'; phosphorus (P) for 'Okitsu'; and sodium (Na) for 'Silverhill'. Calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), and zinc (Zn) uptake were similar for the mandarin cultivars. 'Carrizo' citrange at N, K, Mg, Mn, and Cu uptake; 'Troyer' citrange at N, P, K, and Fe uptake; and common sour orange at Ca, Zn, and Na uptake was superior on the other rootstocks. It was observed that 'Carrizo' and 'Troyer' citrange rootstocks had advantages over sour orange in nutrient uptake. Thus, growth performance, yield, and quality parameters considered, 'Carrizo' and/or 'Troyer' citranges could be suggested as rootstocks for the studied mandarin cultivars under similar ecological conditions

    The effects of citrus rootstocks on Valencia Late and Rhode Red Valencia oranges for some plant nutrient elements

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    In citrus production, the rootstocks utilization is beneficial for solving the problems caused by soil, climates, pests and diseases as well as achieving higher productivity and quality, earlier and later fruit productions. Therefore, citrus producer almost exclusively utilizes rootstocks. The major rootstock of Turkish citrus production is sour orange while trifoliate, Troyer and Carrizo citranges are utilized as well. In this study, we determined the rootstock effects on some plant nutrient element status of Rhode Red Valencia and Valencia Late oranges budded on sour orange, Troyer and Carrizo citranges in 2004 and 2005. Our results were similar in both experimental years with few expectations. The nutrient status of the two orange cultivars tested significantly differed from K and Ca concentrations in both years. However, all cultivars mean were within the range of optimal limits except Zn. The rootstock had significantly different means for all elements tested in both years. We demonstrated that the citrus rootstocks had different abilities to utilize plant nutrient elements. For N, K, Mg, Mn and Cu, Carrizo citrange has the highest means while Troyer and sour orange have the highest concentrations for P and Fe, and Ca, Zn and Na, respectively. We recommend utilizations of Carrizo and Troyer citrange rootstocks for eastern Mediterranean region citrus production as they had higher ability to utilize many plant nutrient elements playing important roles in productivity and quality

    Performance of "rio red" grapefruit on seven rootstocks in the Eastern Mediterranean Region of Turkey

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    The effects of rootstocks such as 'sour orange' (Citrus aurantium L. var. 'Yerli'), 'Carrizo' and 'Troyer citranges' (Citrus sinensis Osb. x Poncirus trifoliata Raf), 'Smooth Flat Seville sour orange' (Citrus spp. hybrid of uncertain origin), 'Brazilian sour orange' (Citrus aurantiam L. var. 'Brasilian'), 'Volkameriana' (Citrus volkameriana Tan. and Pasq.) and 'Calamondin' (possibly Citrus reticulate var. austere×Fortunella hybrid, Swingle) on plant growth, fruit yield, and quality of 'Rio Red' grapefruit were investigated from 2008 to 2012. Rootstocks were found to have significant effects on plant growth, fruit yield, and quality. 'Rio Red' grapefruit trees budded on 'Carrizo' and 'Troyer citranges' showed higher vegetative growth parameters (canopy height, diameter, and volume) than the trees on the other rootstocks. The trees on 'Volkameriana' and 'Carrizo citrange' produced higher percentage of cumulative yield of about 55.1 and 34.3%, respectively, than the trees on 'sour orange'. 'Rio Red' grapefruit budded on 'Carrizo citrange' had higher fruit quality such as thin rind, high juice content, and more color development than the other rootstocks. 'Carrizo citrange' was the most promising rootstock for 'Rio Red' grapefruit in Dörtyol, Eastern Mediterranean region of Turkey

    LEAF MINERAL COMPOSITION OF 'NOVA', 'ROBINSON' AND 'FREMONT' MANDARIN CULTIVARS ON DIFFERENT ROOTSTOCKS

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    Rootstock selection has a critical importance for mineral nutrition of budded cultivars. This study was conducted at the experimental farm of Mustafa Kemal University, Dorlyol, Turkey. The aim of this study was to investigate the effect of sour orange, Troyer and Carrizo citrange rootstocks on the leaf nutrient contents of 'Nova', 'Robinson', and 'Fremont' mandarin cultivars in the 2004 and 2005 growing seasons. Carrizo citrange was examined for nitrogen (N), potassium (K), magnesium (Mg), sodium (Na), and manganese (Mn); Troyer citrange for iron (Fe); and sour orange for calcium (Ca) and zinc (Zn) were superior on the others. Nitrogen, phosphorus (P) and Mg levels of mandarin leaf budded on sour orange were under or just above the deficiency threshold. Potassium, Mn, and Zn content of 'Robinson'; P, Ca and Fe content of 'Fremont'; and Cu content of 'Nova' were statistically higher. Therefore, it can be concluded that Carrizo rootstock may be suggested for the region and regions with similar ecological conditions

    Performance of ''Rio Red'' Grapefruit on Seven Rootstocks in the Eastern Mediterranean Region of Turkey

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    The effects of rootstocks such as 'sour orange' (Citrus aurantium L. var. 'Yerli'), 'Carrizo' and 'Troyer citranges' (Citrus sinensis Osb. x Poncirus trifoliata Raf), 'Smooth Flat Seville sour orange' (Citrus spp. hybrid of uncertain origin), 'Brazilian sour orange' (Citrus aurantiam L. var. 'Brasilian'), 'Volkameriana' (Citrus volkameriana Tan. and Pasq.) and 'Calamondin' (possibly Citrus reticulate var. austerexFortunella hybrid, Swingle) on plant growth, fruit yield, and quality of 'Rio Red' grapefruit were investigated from 2008 to 2012. Rootstocks were found to have significant effects on plant growth, fruit yield, and quality. 'Rio Red' grapefruit trees budded on 'Carrizo' and 'Troyer citranges' showed higher vegetative growth parameters (canopy height, diameter, and volume) than the trees on the other rootstocks. The trees on 'Volkameriana' and 'Carrizo citrange' produced higher percentage of cumulative yield of about 55.1 and 34.3%, respectively, than the trees on 'sour orange'. 'Rio Red' grapefruit budded on 'Carrizo citrange' had higher fruit quality such as thin rind, high juice content, and more color development than the other rootstocks. 'Carrizo citrange' was the most promising rootstock for 'Rio Red' grapefruit in Dortyol, Eastern Mediterranean region of Turkey

    Performance of ''Rio Red'' Grapefruit on Seven Rootstocks in the Eastern Mediterranean Region of Turkey

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    WOS: 000338847100018The effects of rootstocks such as 'sour orange' (Citrus aurantium L. var. 'Yerli'), 'Carrizo' and 'Troyer citranges' (Citrus sinensis Osb. x Poncirus trifoliata Raf), 'Smooth Flat Seville sour orange' (Citrus spp. hybrid of uncertain origin), 'Brazilian sour orange' (Citrus aurantiam L. var. 'Brasilian'), 'Volkameriana' (Citrus volkameriana Tan. and Pasq.) and 'Calamondin' (possibly Citrus reticulate var. austerexFortunella hybrid, Swingle) on plant growth, fruit yield, and quality of 'Rio Red' grapefruit were investigated from 2008 to 2012. Rootstocks were found to have significant effects on plant growth, fruit yield, and quality. 'Rio Red' grapefruit trees budded on 'Carrizo' and 'Troyer citranges' showed higher vegetative growth parameters (canopy height, diameter, and volume) than the trees on the other rootstocks. The trees on 'Volkameriana' and 'Carrizo citrange' produced higher percentage of cumulative yield of about 55.1 and 34.3%, respectively, than the trees on 'sour orange'. 'Rio Red' grapefruit budded on 'Carrizo citrange' had higher fruit quality such as thin rind, high juice content, and more color development than the other rootstocks. 'Carrizo citrange' was the most promising rootstock for 'Rio Red' grapefruit in Dortyol, Eastern Mediterranean region of Turkey

    The Performance of Persimmon (Diospyros kaki Thunb.) Cultivars Under Mediterranean Coastal Conditions in Hatay, Turkey

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    The cultivation of persimmon has been increasing rapidly in the Mediterranean region recently. We investigated the performance, phenological and pomological characteristics of ten persimmon (Diospyros kaki Thunb.) cultivars ('Amankaki', 'Eylul', 'Fuyu', 'Hachiya', 'Hana Fuyu', 'Harbiye', 'Jiro', 'Kaki Tipo', 'O'Gosho', and 'Vainiglia') during 2001 to 2007 in the Mediterranean climate in Dortyol, Hatay, Turkey. 'Jiro', 'Fuyu', 'O'Gosho', 'Hachiya' and 'Eylul' had small canopy volume. Fruit maturity occurred in the first week of October for 'Amankaki', 'Eylul' and 'Hachiya', which all matured earlier than other cultivars. The highest cumulative yields were obtained from 'Vainiglia' and 'Amankaki'. The mean fruit weight varied from 251 g for 'Hana Fuyu' to 87 g for 'Eylul'. 'Eylul' and 'Hachiya' had red skin, while that of 'Vainiglia', 'Kaki Tipo' and 'Harbiye' was yellow. The results demonstrate that regional ecological conditions are appropriate for the cultivation of persimmon. The yield of 'Vainiglia', 'Jiro', 'Amankaki' and 'Fuyu' was high and regular; 'Eylul' and 'Hachiya' had the most colorful fruit. We recommend 'Vainiglia', 'Jiro', 'Amankaki' and 'Fuyu' for commercial growing in the region
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