bluuebunny/crossref_metadata_2025_split huggingface dataset:
Blind detection of spread spectrum flow watermarks
Authors: Jia Weijia , Tso Fung Po , Ling Zhen , Fu Xinwen , Xuan Dong , Yu Wei 
Published: May 2012

ABSTRACTRecently, the direct sequence spread spectrum (DSSS)‐based technique has been proposed to trace anonymous network flows. In this technique, homogeneous pseudo‐noise (PN) codes are used to modulate multiple bit signals that are embedded into the target flow as watermarks. This technique could be maliciously used to degrade an anonymous communication network. In this paper, we propose an effective single flow‐based scheme to detect the existence of these watermarks. Our investigation shows that, even if we have no knowledge of the applied PN code, we are still able to detect malicious DSSS watermarks via mean‐square autocorrelation (MSAC) of a single modulated flow's traffic rate time series. MSAC shows periodic peaks because of self‐similarity in the modulated traffic caused by homogeneous PN codes that are used in modulating multiple bit signals. Our scheme has low complexity and does not require any PN code synchronization. We evaluate this detection scheme's effectiveness via simulations. Our results demonstrate a high detection rate with a low false positive rate. Real‐world experiments on Tor also validate the feasibility of the detection scheme. Our scheme is more flexible and accurate than the existing multiflow‐based approach in DSSS watermark detection. We also present a theory for reconstructing the DSSS code once the DSSS code length is known and simulations validate the feasibility. Copyright © 2012 John Wiley & Sons, Ltd.
Hidden mortality of prenatally diagnosed vein of Galen aneurysmal malformation: retrospective study and review of the literature
Authors: Deloison B. , Chalouhi G. E. , Sonigo P. , Zerah M. , Millischer A. E. , Dumez Y. , Brunelle F. , Ville Y. , Salomon L. J. 
Published: May 2012

AbstractObjectiveTo evaluate the prognosis of prenatally diagnosed vein of Galen aneurysmal malformation (VGAM) in a large cohort with this condition and to review the literature on prenatally diagnosed VGAM.MethodsThis was a retrospective study of all cases of prenatally diagnosed VGAM managed in our referral center during a 12‐year period. VGAM was categorized as being either isolated or associated with any other abnormality, based on fetal ultrasound and magnetic resonance imaging findings. Poor outcomes comprised termination of pregnancy with confirmation of antenatal findings, perinatal death and severe cardiac and/or neurological impairment in survivors. The literature was also reviewed for similar cases.ResultsTwenty‐one cases of prenatally diagnosed VGAM were managed in our center. Four (19.0%) cases were isolated and 17 (81.0%) were associated with other anomalies. There were nine terminations (42.9%) and six neonatal deaths (28.6%). Six children (28.6%) were still alive at last follow‐up, of whom three had abnormal neurological development. VGAM associated with other anomalies was strongly associated with a poor outcome compared with isolated forms (P < 0.0001). One hundred and nine cases from the literature were also reviewed.ConclusionFetuses with prenatally diagnosed VGAM have unexpectedly poor outcomes in the presence of cardiac or cerebral anomalies, while those with strictly isolated VGAM tend to have more favorable outcomes. Our literature review corroborates these findings.
Lateral ventricles in fetuses with aneuploidies at 11–13 weeks' gestation
Authors: Loureiro T. , Ushakov F. , Maiz N. , Montenegro N. , Nicolaides K. H. 
Published: May 2012

AbstractObjectiveTo examine the possible association between aneuploidies and fetal lateral cerebral ventriculomegaly in the first trimester of pregnancy.MethodsThree‐dimensional brain volumes were acquired by transvaginal ultrasound examination at 11–13 weeks' gestation in 410 euploid fetuses and 63 fetuses with trisomy 21, 34 with trisomy 18 and seven with trisomy 13. Lateral ventricles were assessed in a transverse view, just above the roof of the third ventricle and measurements of the areas of the lateral ventricles and choroid plexuses were obtained. The ratio between choroid plexus and lateral ventricle areas (CLR) was calculated. Measurements in aneuploid fetuses were compared to those in euploid fetuses.ResultsIn euploid fetuses the lateral ventricle and choroid plexus areas increased, whereas the CLR decreased with fetal biparietal diameter. In fetuses with trisomy 21, lateral ventricle and choroid plexus areas were smaller but CLR was not significantly different from that in euploid fetuses. In trisomy 18 and 13 fetuses, CLR was significantly smaller than in euploid fetuses. The CLR was below the 5th centile of normal range in 11 (32.4%) fetuses with trisomy 18 and in six (85.7%) with trisomy 13.ConclusionThere is evidence of ventriculomegaly at 11–13 weeks' gestation in most fetuses with trisomy 13 and one third of fetuses with trisomy 18. Copyright © 2012 ISUOG. Published by John Wiley & Sons, Ltd.
Resistance to Bemisia tabaci in tomato wild relatives
Authors: Firdaus Syarifin , van Heusden Adriaan W. , Hidayati Nurul , Supena Ence Darmo Jaya , Visser Richard G. F. , Vosman Ben 
Published: May 2012

AbstractBemisia tabaci is one of the most threatening pests in agriculture, particularly in Solanaceous crops such as tomato and pepper that are cultivated in the open field. Pesticide application is often not effective and hazardous to humans and environment. The exploitation of plant natural defenses that are present in wild relatives of tomato, may offer a solution. To evaluate resistance parameters and to identify plant material with high levels of resistance, we screened a number of accessions of tomato wild relatives using three methods; a free-choice test in a screenhouse in Indonesia, a no-choice test with clip-on cages in a greenhouse and a leaf disc test in a climate-room in the Netherlands. Antibiosis resulting in low adult survival was the major component for resistance in tomato. However, other resistance component(s) may play a role as well. In some accessions there was a change in the resistance level over time. Several resistance parameters used in the different tests were well correlated. The best resistance source was an accession of Solanum galapagense, which had not been identified as being resistant in the past. This is of particular interest as this species is closely related to the cultivated tomato, which may facilitate introgression of the resistance component(s). Whitefly non-preference and resistance were associated with the presence of type IV trichomes. Other mechanisms might be involved since some accessions without type IV trichomes showed low nymphal density. The leaf disc test is a good in vitro alternative for the clip-on cage whitefly resistance screening, as shown by the high correlation between the results obtained with this test and the clip-on cage test. This offers breeders the possibility to carry out tests more efficiently.
Omega 3 fatty acids in the elderly
Authors: Úbeda Natalia , Achón María , Varela-Moreiras Gregorio 
Published: May 2012

Population ageing affects the entire world population. Also at world level one can observe a sharp increase in the proportion of older people. The challenge posed by population ageing translates into ensuring that the extra years of life will be as good as possible, free from high-cost dependency. Omega-3 fatty acids are now generally recognized as potential key nutrients to prevent the pathological conditions associated to the aging process. Ageing physiological process, its association with quality of life and the impact of omega-3 fatty acids intake and/or status is the focus of the present review. This report deals with the effects of omega-3 fatty acids on normal aging of older adults ( ≥ 65 years) mainly on the effects such as nutritional status itself, cognition, bone health, muscle tonus, and general health status. The preliminary broad search of the literature on the effects of omega-3 fatty acids on normal aging yielded 685 citations. Forty two full text papers were checked for inclusion and thirty six studies were finally included in this review. It may be concluded that paradoxically even though the elderly population is the largest one, the number of studies and the methodology employed clearly lacks of sufficient evidence to establish definite conclusions on the effects of omega-3 fatty acids on aging metabolism without pathological conditions and on quality of life.
The effect of EPA and DHA on metabolic syndrome patients: a systematic review of randomised controlled trials
Authors: Lopez-Huertas Eduardo 
Published: May 2012

Metabolic syndrome (MS) is characterised by accumulation of CVD risk factors. The use of very long chainn-3 polyunsaturated fatty acids (VLCn3 PUFA) could potentially benefit MS by reducing risk factors. To better understand the possible VLCn3 PUFA benefits, the literature was systematically reviewed for randomised controlled trials (RCT) that published effects of VLCn3 PUFA on MS patients. 17 RCT fulfilled the inclusion criteria and were analysed for relevance to the research question. The available RCT convincingly show that the administration of VLCn3 PUFA doses > 1 g for at least 3 months produces a significant reduction of triglycerides ranging from 7 % to 25 %. These results confirm the hypotriglyceridemic effect of VLCn3 PUFA in MS patients. The triglyceride lowering may produce further benefits by reducing the % of pro-atherogenic small dense LDL particles (sdLDL) and also perhaps by ameliorating the inflammatory process associated with MS. High doses of VLCn3 PUFA ( ≥ 3 g/day) may produce further TAG reductions but could raise other risk factors such as LDL-C. No clear effects were found on other MS markers. The combination of VLCn3 PUFA plus a statin may be useful to prevent the occurrence of coronary events. More studies are needed using different amounts of VLCn3 PUFA, time lengths, dietary backgrounds and different profiles of MS patients before clear recommendations can be made.
Long chain omega-3 fatty acids and cardiovascular disease: a systematic review
Authors: Delgado-Lista Javier , Perez-Martinez Pablo , Lopez-Miranda Jose , Perez-Jimenez Francisco 
Published: May 2012

Introduction: Cardiovascular disease remains the commonest health problem in developed countries, and residual risk after implementing all current therapies is still high. The use of marine omega-3 fatty acids (DHA and EPA) has been recommended to reduce cardiovascular risk by multiple mechanisms. Objectives: To update the current evidence on the influence of omega-3 on the rate of cardiovascular events. Review Methods: We used the MEDLINE and EMBASE databases to identify clinical trials and randomized controlled trials of omega-3 fatty acids (with quantified quantities) either in capsules or in dietary intake, compared to placebo or usual diet, equal to or longer than 6 months, and written in English. The primary outcome was a cardiovascular event of any kind and secondary outcomes were all-cause mortality, cardiac death and coronary events. We used RevMan 5·1 (Mantel-Haenszel method). Heterogeneity was assessed by the I2and Chi2tests. We included 21 of the 452 pre-selected studies. Results: We found an overall decrease of risk of suffering a cardiovascular event of any kind of 10 % (OR 0·90; [0·85–0·96],p = 0·001), a 9 % decrease of risk of cardiac death (OR 0·91; [0·83–0·99];p = 0·03), a decrease of coronary events (fatal and non-fatal) of 18 % (OR 0·82; [0·75–0·90];p < 1 × 10− 4), and a trend to lower total mortality (5 % reduction of risk; OR 0·95; [0·89–1·02];p = 0·15. Most of the studies analyzed included persons with high cardiovascular risk. Conclusions: marine omega-3 fatty acids are effective in preventing cardiovascular events, cardiac death and coronary events, especially in persons with high cardiovascular risk.
ROLE OF NON-STRUCTURAL CARBOHYDRATE AND ITS CATABOLISM ASSOCIATED WITH SUB 1 QTL IN RICE SUBJECTED TO COMPLETE SUBMERGENCE
Authors: PANDA DEBABRATA , SARKAR RAMANI KUMAR 
Published: May 2012

SUMMARYThe present study is to characterise the non-structural carbohydrate (NSC) status and its catabolism along with elongation growth in rice cultivars either possessing or not possessing the Sub 1 quantitative trait locus (QTL), i.e. Swarna and Swarna Sub1 exposed to seven days of complete submergence. During submergence, Swarna accelerated the rate of stem and leaf elongation and rapidly consumed NSC. In contrast, Swarna Sub1 consumed energy resources more slowly and maintained similar growth rate to that of non-submerged plants. Swarna Sub1 showed better utilisation of carbohydrate than that of Swarna by progressive induction of alcohol dehydrogenase, starch phosphorylase and total and α-amylase enzyme activity during submergence. Overall, submergence tolerance conferred by the Swarna Sub1 QTL is correlated with better maintenance and utilisation of NSC than that of Swarna.
The Birth of Biopower in Eighteenth-Century Germany
Authors: Stein Claudia 
Published: May 2012

In April 2009, Sir David Attenborough, the respected face and voice of British natural history programmes for more than fifty years, became the patron of a new charity, the Optimum Population Trust (OPT), an organisation campaigning to limit the world's population. His reason for accepting the honour, he confessed to The Times, was that he was terribly worried about the dramatic increase of the world's population and the effect it was having on the quality of human life throughout the world:There are three times as many people in the world as when I started making television programmes only a mere fifty-six years ago. It is frightening. We can't go on as we have been. We are seeing the consequences in terms of ecology, atmospheric pollution and in terms of the space and food production.
Rational analogues of Ramanujan's series for 1/π
Authors: CHAN HENG HUAT , COOPER SHAUN 
Published: May 2012

AbstractA general theorem is stated that unifies 93 rational Ramanujan-type series for 1/π, 40 of which are believed to be new. Moreover, each series is shown to have a companion identity, thereby giving another 93 series, the majority of which are new.
The pertussis epidemic: informing strategies for prevention of severe disease
Authors: CLARKE M. F. , RASIAH K. , COPLAND J. , WATSON M. , KOEHLER A. P. , DOWLING K. , MARSHALL H. S. 
Published: May 2012

SUMMARYTo assess the impact of Bordetella pertussis infections in South Australia during an epidemic and determine vulnerable populations, data from notification reports for pertussis cases occurring between July 2008 and December 2009 were reviewed to determine the distribution of disease according to specific risk factors and examine associations with hospitalizations. Although the majority (66%) of the 6230 notifications for pertussis occurred in adults aged >24 years, the highest notification and hospitalization rate occurred in infants aged <1 year. For these infants, factors associated with hospitalization included being aged <2 months [relative risk (RR) 2·3, 95% confidence interval (CI) 1·60–3·32], Indigenous ethnicity (RR 1·7, 95% CI 1·03–2·83) and receiving fewer than two doses of pertussis vaccine (RR 4·1, 95% CI 1·37–12·11). A combination of strategies aimed at improving direct protection for newborns, vaccination for the elderly, and reducing transmission from close contacts of infants are required for prevention of severe pertussis disease.
Population development and historical occurrence of king penguins at the Falkland Islands
Authors: Pistorius Pierre A. , Baylis Alastair , Crofts Sarah , Pütz Klemens 
Published: May 2012

AbstractAfter an extended period of sporadic sightings of small numbers of king penguins at the Falkland Islands, they established themselves on Volunteer Point, situated at the north-east of the islands, by the late 1970s. By 1980, a small breeding population was present which yielded some 40 fledglings during that same year. Since 1991, the population has been monitored annually and the resulting fledgling counts analysed to assess population trends. The population demonstrated a significant increase over the past three decades, at about 10% per annum, with time explaining 75% of the variation in count data. The current population is estimated to be 720 breeding pairs. Despite several authors having alluded to the existence of a large colony of king penguins at the Falklands prior to human exploitation, we found no evidence in support of this. We furthermore found no evidence in the literature in support of exploitation for king penguin oil during the 19th century. Unlike at other breeding sites, increasing numbers of king penguins at the Falklands is consequently unlikely to be a recovery response following exploitation, but rather an indication of either increased immigration or of improved feeding conditions.
Results of seismic monitoring surveys of Deception Island volcano, Antarctica, from 1999–2011
Authors: Carmona Enrique , Almendros Javier , Serrano Inmaculada , Stich Daniel , Ibáñez Jesús M. 
Published: May 2012

AbstractDeception Island volcano (South Shetland Islands, Antarctica) has been monitored in summer surveys since 1994. We analyse the seismicity recorded from 1999–2011 with a local network and seismic arrays. It includes long-period (LP) events, volcanic tremor episodes and volcano-tectonic (VT) earthquakes. Long-period events are conspicuous, ranging from 58 (2007–08) to 2868 events (2003–04). The highest number of LP events in one day is 243 on 2 February 2001, and there are several discrete periods of intense LP activity. These variations may be related to alterations in the shallow hydrothermal system of Deception Island. The number of VT earthquakes recorded during the surveys range from 4 (2008–09) to 125 (2007–08). In some periods VT distributions are temporally and spatially homogeneous, with a generally low level of seismicity. In other periods we observe a peak of VT activity lasting a few days, concentrated in a particular area. These two patterns may respond to different processes, involving regional stresses and local tectonic destabilization induced by volcanic activity. Overall, this study indicates that over the period 1999–2011 the volcano presented a moderate level of seismicity, and suggests that there has been no significant reactivation of the volcano since the 1999 seismic crisis.
A Redundant Resource: A Pre-Planned Casualty Clearing Station for a FIFA 2010 Stadium in Durban
Authors: Hardcastle Timothy C. , Samlal Sanjay , Naidoo Rajen , Hendrikse Steven , Gloster Alex , Ramlal Melvin , Ngema Sibongiseni , Rowe Michael 
Published: May 2012

AbstractThis report details the background, planning, and establishment of a mass-casualty management area for the Durban Moses Mabhida Stadium at the Natal Mounted Rifles base, by the Department of Health and the eThekwini Fire and Rescue Service, for the Fédération Internationale de Football Association (FIFA) 2010 Soccer World Cup. The report discusses the use of the site during the seven matches played at that stadium, and details the aspects of mass-gathering major incident site planning for football (soccer).The area also was used as a treatment area for other single patient incidents outside of the stadium, but within the exclusion perimeter, and the 22 patients treated by the Casualty Clearing Station (CCS) team are described and briefly discussed. A site-specific patient presentation rate of 0.48 per 10,000 and transport-to-hospital rate (TTHR) of 0.09/10,000 are reported. Lessons learned and implications for future event planning are discussed in the light of the existing literature.HardcastleTC, SamlalS, NaidooR, HendrikseS, GlosterA, RamlalM, NgemaS, RoweM. A redundant resource: a pre-planned casualty clearing station for a FIFA 2010 stadium in Durban. Prehosp Disaster Med. 2012;27(2):1-7.
Cost Utility Analyses in International Disaster Responses—Where Are They?
Authors: Zoraster Richard 
Published: May 2012

AbstractInternational health care providers have flocked to Haiti and other disaster-affected countries in record numbers. Anecdotal articles often give “body counts” to describe what was accomplished, followed months later by articles suggesting outcomes could have been better. Mention will be made that various interventions were “expensive,” or not the best use of limited funds. But there is very little science to post-intervention evaluations, especially with regard to the value for the money spent. This is surprising, because a large body of literature exists with regard to the Cost Utility Analysis (CUA) of health care interventions. Applying reproducible metrics to disaster interventions will help improve performance.This study will: (1) introduce and explain basic CUA; (2) review why the application of CUA is difficult in disaster settings; (3) consider how disasters may be unique with regard to CUA; (4) demonstrate past and theoretical utilization of CUA in disaster settings; and (5) suggest future utilization of CUA by healthcare providers in Disaster Response.Zoraster R. Cost utility analyses in international disaster responses—where are they? Prehosp Disaster Med. 2012;27(2):1-6.
Leadership and Use of Standards by Australian Disaster Medical Assistance Teams: Results of a National Survey of Team Members
Authors: Aitken Peter , Leggat Peter A. , Robertson Andrew G. , Harley Hazel , Speare Richard , Leclercq Muriel G. 
Published: May 2012

AbstractIntroductionIt is likely that calls for disaster medical assistance teams (DMATs) will continue in response to international disasters.ObjectiveAs part of a national survey, the present study was designed to evaluate leadership issues and use of standards in Australian DMATs.MethodsData was collected via an anonymous mailed survey distributed via State and Territory representatives on the Australian Health Protection Committee, who identified team members associated with Australian DMAT deployments from the 2004 Asian Tsunami disaster.ResultsThe response rate for this survey was estimated to be approximately 50% (59/118). Most of the personnel had deployed to the Asian Tsunami affected areas. The DMAT members were quite experienced, with 53% (31/59) of personnel in the 45-55 years of age group. Seventy-five percent (44/59) of the respondents were male. Fifty-eight percent (34/59) of the survey participants had significant experience in international disasters, although few felt they had previous experience in disaster management (5%, 3/59). There was unanimous support for a clear command structure (100%, 59/59), with strong support for leadership training for DMAT commanders (85%, 50/59). However only 34% (20/59) felt that their roles were clearly defined pre-deployment, and 59% (35/59) felt that team members could be identified easily. Leadership was identified by two team members as one of the biggest personal hardships faced during their deployment. While no respondents disagreed with the need for meaningful, evidence-based standards to be developed, only 51% (30/59) stated that indicators of effectiveness were used for the deployment.ConclusionsIn this study of Australian DMAT members, there was unanimous support for a clear command structure in future deployments, with clearly defined team roles and reporting structures. This should be supported by clear identification of team leaders to assist inter-agency coordination, and by leadership training for DMAT commanders. Members of Australian DMATs would also support the development and implementation of meaningful, evidence-based standards. More work is needed to identify or develop actual standards and the measures of effectiveness to be used, as well as the contents and nature of leadership training.Aitken P, Leggat PA, Robertson AG, Harley H, Speare R, Leclercq MG. Leadership and use of standards by Australian disaster medical assistance teams: results of a national survey of team members.Prehosp Disaster Med.2012;27(2):1-6.