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You've probably heard the expression, \"It's time to cut the cord.\" Well, it may be time to \"cut the cables\" at your office and free yourself from your desk and computer. Wireless networks are the waves of the future—literally. Wireless Networks For Dummies guides you from design through implementation to ongoing protection of your system and your information so you can: * Remain connected to the office in airports and hotels * Access the Internet and other network resources in the lunchroom, conference room, or anywhere there's an access point * Use your PDA or laptop to query your database from the warehouse or the boardroom * Check e-mail wirelessly when you're on the road * Get rid of the cable clutter in your office Wireless Networks For Dummies was coauthored by Barry D. Lewis, CISSP, and Peter T. Davis, who also coauthored Computer Security For Dummies. Barry Lewis is president of an information security consulting firm and an internationally known leader of security seminars. Peter Davis is founder of a firm specializing in the security, audit, and control of information. Together, they cut through the cables, clutter, and confusion and help you: * Get off to a quick start and get mobile with IrDA (Infrared Data Association) and Bluetooth * Perform a site survey and select the right standard, mode, access point, channel and antenna * Check online to verify degree of interoperability of devices from various vendors * Install clients and set up roaming * Combat security threats such as war driving, jamming, hijacking, and man-in-the-middle attacks * Implement security and controls such as MAC (Media Access Control) and protocol filtering, WEP (Wireless Equivalent Privacy), WPA, (Wi-Fi Protected Access), EAP (Extensible Authentication Protocol), and VPN (Virtual Private Network) * Set up multiple access points to form a larger wireless network Complete with suggestions of places to get connected, Web sites where you can get more information, tools you can use to monitor and improve security, and more, Wireless Networks For Dummies helps you pull the plug and go wireless!

The purpose of this retrospective, observational study was to describe the relation between exercise workload during cardiac rehabilitation (CR), expressed as metabolic equivalents of task (METs), and prognosis among patients with coronary heart disease. We included patients with coronary heart disease who participated in CR between January 1998 and June 2007. METs were calculated from treadmill workload. Cox regression analysis was used to describe the relationship between METs and time to a composite outcome of all-cause mortality, nonfatal myocardial infarction, or heart failure hospitalization. Among 1,726 patients (36% women; median age 59 years [interquartile range, 52 to 66]), there were 467 events (27%) during a median follow-up of 5.8 years (interquartile range, 2.6 to 8.7). In analyses adjusted for age, sex, Charlson co-morbidity index, hypertension, diabetes, and CR referral diagnosis, METs were independently related to the composite outcome at CR start (Wald chi-square 43, hazard ratio 0.59 [95% confidence interval 0.51 to 0.70]) and CR end (Wald chi-square 47, hazard ratio 0.68 [95% confidence interval 0.61 to 0.76]). Patients exercising below 3.5 METs on exit from CR represent a high-risk group with 1- and 3-year event rates ≥7% and ≥18%, respectively. In conclusion, METs during CR is available at no additional cost and can be used to identify patients at increased risk for an event who may benefit from closer follow-up, extended length of stay in CR, and/or participation in other strategies aimed at maximizing adherence to secondary preventive behaviors and improving exercise capacity.

Background Although cardiopulmonary exercise (CPX) testing in patients with heart failure and reduced ejection fraction is well established, there are limited data on the value of CPX variables in patients with HF and preserved ejection fraction (HFpEF). We sought to determine the prognostic value of select CPX measures in patients with HFpEF. Methods This was a retrospective analysis of patients with HFpEF (ejection fraction ≥ 50%) who performed a CPX test between 1997 and 2010. Selected CPX variables included peak oxygen uptake (VO2 ), percent predicted maximum oxygen uptake (ppMVO2 ), minute ventilation to carbon dioxide production slope (VE /VCO2 slope) and exercise oscillatory ventilation (EOV). Separate Cox regression analyses were performed to assess the relationship between each CPX variable and a composite outcome of all-cause mortality or cardiac transplant. Results We identified 173 HFpEF patients (45% women, 58% non-white, age 54 ± 14 years) with complete CPX data. During a median follow-up of 5.2 years, there were 42 deaths and 5 cardiac transplants. The 1-, 3-, and 5-year cumulative event-free survival was 96%, 90%, and 82%, respectively. Based on the Wald statistic from the Cox regression analyses adjusted for age, sex, and β-blockade therapy, ppMVO2 was the strongest predictor of the end point (Wald χ2 = 15.0, hazard ratio per 10%, P < .001), followed by peak VO2 (Wald χ2 = 11.8, P = .001). VE /VCO2 slope (Wald χ2 = 0.4, P = .54) and EOV (Wald χ2 = 0.15, P = .70) had no significant association to the composite outcome. Conclusion These data support the prognostic utility of peak VO2 and ppMVO2 in patients with HFpEF. Additional studies are needed to define optimal cut points to identify low- and high-risk patients.

Abstract Objective : To assess the performance and impact of a two tier neonatal screening programme for cystic fibrosis based on an initial estimation of immunoreactive trypsinogen followed by direct gene analysis. >Design : Four year prospective study of two tier screening strategy. First tier: immunoreactive trypsinogen measured in dried blood spot samples from neonates aged 3-5 days. Second tier: direct gene analysis of cystic fibrosis mutations (δF508, δI506, G551D, G542X, and R553X) in samples with immunoreactive trypsinogen concentrations in highest 1% and in all neonates with meconium ileus20or family history of cystic fibrosis. Setting : South Australian Neonatal Screening Programme, Adelaide. Subjects : All 88 752 neonates born in South Australia between December 1989 and December 1993. Interventions : Neonates with two identifiable mutations were referred directly for clinical assessment and confirmatory sweat test; infants with only one identifiable mutation were recalled for sweat test at age 3-4 weeks. Parents of neonates identified as carriers of cystic fibrosis mutation were counselled and offered genetic testing. Main outcome measures - Identification of20all children with cystic fibrosis in the screened population. Results : Of 1004 (1.13%) neonates with immunoreactive trypsinogen >=99th centile, 912 (90.8%) had no identifiable mutation. 23 neonates were homozygotes or compound heterozygotes; 69 carried one identifiable mutation, of whom six had positive sweat tests. Median age at clinical assessment for the 29 neonates with cystic fibrosis was 3 weeks; six had meconium ileus and two had affected siblings. 63 neonates were identified as carriers of a cystic fibrosis mutation. Extra laboratory costs for measuring immunoreactive trypsinogen and direct gene analysis were $A1.50 per neonate screened. Conclusion : This strategy results in early and accurate diagnosis of cystic fibrosis and performs better than screening strategies based on immunoreactive trypsinogen measurement alone.

Comets' workhorse: Bishop Kelley's Greg Hawkins rushed for 169 yards and four TDs in a 42-28 victory over Rogers on Friday. Hawkins, who averages 25 carries per game, has gained 1,108 yards and has 13 TDs this season. Zebras' streak snapped: Claremore, which is missing the playoffs for the first time since 1989, ended Catoosa's hopes, 23-7. Josh Dexter rushed for 131 yards and two TDs for Claremore. Cardinals persevere: Collinsville has won three in a row to keep its bid alive for a 4A playoff berth. The Cardinals (6-3) have rebounded from a three-game losing streak despite losing scoring leader Tyler Chronister (broken wrist), who was their starting quarterback and kicker. Sophomore Lane Coulter has filled in at quarterback.

Increasingly, companies are allowing users to access the host computer through the use of a telephone and a modem. Demands are being made for greater control over user identification and password management. Challenge/response type technology provides excellent user authentication and remains reasonably unobtrusive. Although there are other control devices and technologies, the challenge/response format provides the most reasonable approach to user authentication, based on its proven flexibility and comparatively low cost. The 3 main considerations related to the use of a challenge/response system are: 1. device administration, 2. most software/hardware requirements, and 3. user training and awareness. Some up-front effort will be needed to develop policies and procedures needed to manage dial-up access. Time also will be required to establish suitable controls and user training.

[Jeff Fletcher], however, will be leading the seventh-ranked Pirates (20- 5) when they face No. 4 Okeene (25-1) in the Class A quarterfinals at 3:30 p.m. Thursday at Moore. Hammon returns: Kevin Brown, who coached [Cyril] to the Class A semifinals in 2005, has led Hammon to the B state tournament for the first time since 2004. Defending champs qualify: Sixth-ranked Frontier, after beating Kiefer 60-42 in an area losers bracket final Saturday will try to win its fourth consecutive Class A title. Frontier (17-10) meets No. 3 Pioneer (23-3) in the quarterfinals at 7 p.m. Thursday.

Lewis nears return: Muskogee quarterback Rell Lewis suited up but did not play in Thursday's 12-0 win over B.T. Washington. Lewis wore a knee brace in pregame drills. The Titans are 3-5 but are just a few plays away from 6-2. [McLain] overcame a 16-6 deficit to take a 22-16 lead on Shawn Jackson's TD and conversion with 1:17 left. But Durant came back and won on Max White's TD and extra-point kick with five seconds remaining. McLain is 0-4 at Melvin Driver Stadium, including two other heartbreaking losses. The Titans lost to McAlester 38-33 as the Buffaloes stopped them inches from the goal line in the final seconds. And, Shawnee edged McLain 37-34 on a field goal as time expired.