Province implements changes to the Building and Plumbing Code

first_img– Advertisement – Another change includes new regulations for secondary suites that will require fire separations between residences to improve safety for everyone in the homes. For more information regarding the changes, you can visit VICTORIA, B.C. – The Province of British Columbia has announced that it is implementing changes to the Building and Plumbing Code. According to the Government, the changes will support innovative construction methods to help build more affordable homes faster, while enhancing building standards for energy efficiency and safety for British Columbians.   One of the changes to the building code enables local governments to allow 12-storey tall wood buildings, up from the previous limit of six storeys. Thirteen communities have signed on to be early adopters of tall wood buildings using mass timber technology. last_img read more

Cool Cell Tricks

first_imgSome cell parts act like acrobats, some like rescue workers, and some like I.T. professionals.  Here are some recent stories about the tricks that living cells perform each day.Precision formation flying:  The Scientist expressed amazement at the precision of key factors in development of the body plan in fruit flies.  The levels of expression in the bicoid factor “suggest a surprising level of accuracy in regulation of protein controlling body plan development.”  Words like “stunning,” “surprising” and “more complicated than we think” season the article.  “It’s very difficult to imagine how this could work,” said one.  The original papers on this process were published in Cell and summarized in a review article by Matthew Gibson.1    A press release from Princeton elaborated on the precision of this process.  During development, it says, “cells make decisions to become one part of the body or another by a process so precise that they must be close to counting every available signaling molecule they receive from the mother.”  The article also says, “This signaling requires a sensitivity approaching the limits set by basic physical principles.”  One result of being able to measure things in biology these precisely was mentioned in the first paragraph: these are “discoveries that could change how scientists think not just about flies, but about life in general.”  The press release mentioned nothing about evolution.Chromosome triage:  Cells maintain a special “chromosome glue” called cohesin that can repair damaged DNA and keep sister chromatids together during cell division, reported EurekAlert.  The repair kit comes ready for emergencies: “Their results show that DNA damage can reactivate cohesin, which runs counter to the commonly held view that cohesion only arises during the DNA copying that takes place before cell division.”    A paper on DNA repair was published in Nature last month,2 titled, “Chromatin dynamics and the preservation of genetic information.”  After mentioning the harm that can come from double-stranded breaks in DNA, the abstract said, “Recent work indicates that chromatin – the fibres into which DNA is packaged with a proteinaceous structural polymer – has an important role in initiating, propagating and terminating this cellular response to DNA damage.”    Science also chimed in on this subject, with a Perspectives article by Erwan Watrin and Jan-Michael Peters describing “How and why the genome sticks together.”3  Two papers in the issue give a new vista on the work a cell does to protect its library: “cohesion can be established in response to DNA damage independently of DNA replication,” they said.  “This overturns a long-held belief that cohesion is strictly coupled to DNA synthesis.  The papers also imply that DNA damage may have a broader impact than previously thought, triggering genomewide protection of chromosome integrity.”Word processing foremen:  Non-coding sections of DNA may act as punctuation, an article on the Times Online reported.  This is further evidence that the concept of “junk DNA” is defunct. For years, evolutionary geneticists were puzzled by long stretches of apparently useless DNA: “This is puzzling, because scientists thought that evolution would fine-tune the human genome to preserve the essential bits and discard the rest,” wrote Anjana Ahuja for the Times. Now an international team of scientists has discovered that junk DNA might regulate the activity of the genes they surround.  While genes do the hard work of making proteins, the junk DNA could be responsible for starting and stopping protein production.  “Some of the junk DNA might be considered punctuation marks – commas and full stops that help make sense of the coding portion of the genome,” says Dr Victoria Lunyak, of the University of California, San Diego, School of Medicine, one of the authors of a paper published in Science.  Another analogy is to think of genes as building labourers, and the surrounding pieces of junk DNA as foremen.This almost makes it sound like the “junk DNA” is in some sense more important than the genes – that is, if managers are more important than laborers – a dubious proposition.Time to unwind:  A press release from Cornell shows an unwinding device at work: helicase, a molecular machine that unwinds DNA strands during replication.  “The research found that the helicase appears to actively exert a force onto the fork and separate the two strands,” the article said.  This shows that helicase is not a passive device.  It really works at its vital job.A bouquet with love:  You may have heard of telomeres, the tips of chromosomes, as mere caps on DNA to keep it from unraveling.  Cell published a new study that shows that these DNA ends organize into a “bouquet” that is essential for spindle pole formation during meiotic cell division.4  The authors said, “This discovery illuminates an unanticipated level of communication between chromosomes and the spindle apparatus that may be widely conserved among eukaryotes.”Talk to me:  The phenomenon of cell communication is a huge area of study.  Science Daily reported a finding that red blood cells “talk” to platelets, and that disruption of this communication leads to diabetes and heart attacks.    In Current Biology,5 Paul Jarvis wrote about the “backchat” that goes on between chloroplasts and the nucleus in plant cells.  He assumed that chloroplasts evolved as once free-living cells that were engulfed by an ancestral prokaryote, and that their separate genomes were partitioned, most of the DNA going to the nucleus of the host.  Still, a remarkable degree of communication is required to ensure the proper amounts of chloroplast proteins are produced in the nucleus: “To ensure the correct, stoichiometric assembly of these complexes, and to enable their rapid reorganization in response to developmental or environmental cues, the activities of the nuclear and chloroplast genomes must be synchronized through intracellular signalling,” he said.  Each protein must then traverse the inner and outer membranes of the chloroplast, assisted by complexes of molecular machines.  Jarvis presented one example of the complexity involved in signalling:A particularly nice example is provided by the plastid protein import 1 (ppi1) mutant, which lacks the chloroplast protein import receptor atToc33.  This is actually one of two similar receptors in Arabidopsis, the other being atToc34, which are thought to have distinct substrate preferences: atToc33 mediating the import of the highly abundant precursors of the photosynthetic apparatus, and atToc34 the import of ‘housekeeping’ proteins (for example, components of the plastid’s genetic system, or enzymes of non-photosynthetic metabolism).  Remarkably, the ppi1 mutation triggers the specific down-regulation of photosynthesis-related genes (Figure 2), suggesting that retrograde signalling mechanisms exist to prevent the futile expression of proteins not able to reach their final, organellar destination.  Clearly, such exquisite regulation specificity could not be achieved were all plastid signalling pathways to converge and control gene expression through a common process.He did not elaborate on how all this “organellar repartee” could have evolved, though.  He just ended on the note, “Observations such as these suggest that a great deal remains to be learnt concerning plastid-to-nucleus signalling.”We brake for spindles:  Kinesin is usually thought of a molecular motor that power-walks down a track.  But what good is an engine without a brake?  When kinesin needs to carry a load, or when it needs to winch apart chromosomes during cell division, something needs to tell it when to stop.  An article in Current Biology6 shows that in some cases, kinesin-5 has a built-in braking mechanism:Faithful chromosome segregation depends upon the formation and function of a bipolar, microtubule (MT)-based mitotic spindle, which uses multiple mitotic motors to assemble itself and to separate sister chromatids.  Among these motors, members of the kinesin-5 family are thought to have critical and often essential mitotic functions, by pushing apart the spindle poles, for example during anaphase B spindle elongation.  Curiously, however, the single kinesin-5 present in Caenorhabditis elegans, BMK-1, is dispensible for mitosis.  Now, new work from the Saxton and Strome laboratories, published recently in Current Biology, shows that, in this system, BMK-1 has novel mitotic functions, serving as a brake that restrains the rate of anaphase spindle-pole separation driven by other cortical force generators.The authors thought it “somewhat surprising to find such distinct, indeed opposite, roles for kinesin-5, acting as a brake on ipMT sliding in the spindles of C. elegans embryos versus actively pushing apart ipMTs in spindles of other systems, such as Drosophila embryos.”  More work is being done to figure out how this is possible.None of these papers explained how evolution could come up with the tricks.  The last entry, though, simply stated as a matter of fact that natural selection did it somehow.  Still, the authors’ astonishment at the diversity and complexity of molecular motors left it challenging to believe it all just happened:Some of us recall the time when the world of motor proteins seemed relatively uncomplicated; cilia used dynein, muscles used myosin, and we sensed that the discovery of ‘THE mitotic motor’ lay just around the corner.  Subsequently, mitosis researchers have uncovered a far more fascinating scenario in which multiple mitotic motors, a dozen or so in Drosophila for example, are deployed to functionally coordinate the highly choreographed sequence of motility events associated with spindle assembly and chromatid separation.  The work of Saunders et al.  on kinesin-5 extends our growing appreciation of mitotic motor diversity by suggesting that this key mitotic motor can be used to carry out a previously unrecognized function in C. elegans spindles.  As these authors point out, it is striking how natural selection adopts such diverse strategies in different cell-types to move apart sister chromatids the few microns required to ensure that the products of each cell division inherit a complete set of genetic instructions.  This diversity presents a challenge, since useful general models for spindle assembly and function must not only incorporate the basic principles common to all spindles, but should also be sufficiently adaptable to encompass the diversity of spindle design produced by natural selection.1Matthew Gibson, “Bicoid by the Numbers: Quantifying a Morphogen Gradient,” Cell, Volume 130, Issue 1, 13 July 2007, pages 14-16, doi:10.1016/j.cell.2007.06.036.2Jessica A. Downs, Michel C. Nussenzweig and Andre Nussenzweig, “Review article: Chromatin dynamics and the preservation of genetic information,” Nature 447, 951-958 (21 June 2007) | doi:10.1038/nature05980.3Erwan Watrin and Jan-Michael Peters, “Molecular Biology: How and When the Genome Sticks Together,” Science, 13 July 2007: Vol. 317. no. 5835, pp. 209-210, DOI: 10.1126/science.1146072.4Kazunori Tomita and Julia Promisel Coope, “The Telomere Bouquet Controls the Meiotic Spindle,” Cell, Volume 130, Issue 1, 13 July 2007, pages 113-126, doi:10.1016/j.cell.2007.05.024.5Paul Jarvis, “Intracellular Signalling: Chloroplast Backchat,” Current Biology, Volume 17, Issue 14, 17 July 2007, Pages R552-R555, doi:10.1016/j.cub.2007.05.021.6Gul Civelekoglu-Scholeya and Jonathan M. Scholey, “Mitotic Motors: Kinesin-5 Takes a Brake,” Current Biology, Volume 17, Issue 14, 17 July 2007, Pages R544-R547, doi:10.1016/j.cub.2007.05.030.We must continue to juxtapose the unfolding intricacies of cellular machinery with the farcical explanations proposed by evolutionists.  Darwinian thinking is so entrenched, only repeated application of detailed instances as shown above can produce the cumulative effect on brainwashed minds that is obvious to the rest of us: trying to explain these wonders by unguided processes of mindless evolution is just plain dumb.  Some day, this will be obvious to everybody.  Future biologists will look back with bewilderment that so many smart people fell for such silly notions for so long.  They will understand intuitively that quality control, effective communication and choreographed performances are hallmarks of planning, guidance, and intelligence.  How could anyone have thought otherwise?  Someone’s motors weren’t turning, for sure.(Visited 27 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

Best Construction Details for Deep-Energy Retrofits

first_img Sign up for a free trial and get instant access to this article as well as GBA’s complete library of premium articles and construction details. A collection of experts working on deep-energy retrofits recently attended a brainstorming session to share design tips and propose topics for further research.The conference, formally titled the “Expert Meeting for Details for Deep Energy Retrofits,” was held in Boston on March 12. The meeting was funded by the Department of Energy’s Building America program and hosted by the Building Science Corporation.Several experts — including two principals of the Building Science Corporation, John Straube and Joe Lstiburek — gave presentations. Straube discussed retrofit options for walls; Lstiburek covered roofs; and their colleague Kohta Ueno discussed basements. Paul Eldrenkamp, a remodeler from Newton, Mass., shared his experience with several deep-energy retrofit projects, while energy consultant Marc Rosenbaum shared questions designed to stimulate new approaches to reducing residential energy use.I’ve mined the published report of the proceedings for the following tips and pithy quotes.If you’re adding rigid foam to your wall, put it on the exteriorDr. Straube noted the advantages of exterior over interior wall foam. Thick walls without exterior foam usually have cold OSB sheathing. That’s bad: cold OSB is a potential condensing surface — and damp OSB can rot fast. (By encouraging drying, a ventilated air gap between the OSB and the siding can go a long ways toward reducing the risks associated with cold OSB. But adding exterior foam is the best way to eliminate the risk of condensation.)Among Dr. Straube’s points:After his presentation, Straube answered questions.Q: “Can a Larsen truss exterior wall assembly filled with cellulose insulation be used to provide significant insulation to the exterior of a structure?”Straube’s response: “With a Larsen truss, cellulose, and sheathing on the outside, the sheathing is actually colder than ambient air because of radiation transfer.” (Straube was referring to nighttime radiation transfer,… This article is only available to GBA Prime Memberscenter_img Start Free Trial Already a member? Log inlast_img read more

10 months agoSolskjaer tells Man Utd (& fans): I don’t want to leave

first_imgTagsTransfersAbout the authorPaul VegasShare the loveHave your say Solskjaer tells Man Utd (& fans): I don’t want to leaveby Paul Vegas10 months agoSend to a friendShare the loveManchester United boss Ole Gunnar Solskjaer admits he wants to keep the job.Victory at Newcastle United meant Solskjaer continued his 100 per cent start as interim manager and he challenged his players to continue that form with tougher tests ahead.He also became the first United manager to win opening four games since Sir Matt Busby 73 years ago.”I don’t want to (leave) – of course I won’t,” Solskjaer said. “It’s such a great bunch of players, fantastic atmosphere, but it’s the next game, it’s the next game.”I’m doing my job as long as I’m here. If you win four you can win another four with this club.”That’s the challenge, that’s the standard we know. That used to be the challenge from the gaffer (Sir Alex Ferguson).” last_img read more

The Secret To The Rams Blocking Success Isnt The Linemen Its Sean

Returning to Los Angeles, the Rams used the 11 personnel more than any other team in the NFL in 2018. So it’s possible that instead of the Rams being generationally superior at run blocking — or instead of Gurley being a one-of-a-kind game-altering running back — the Rams’ offensive line just faced fewer crowded fronts than other teams. This would at least provide some context for their overwhelming success — and help explain how Anderson could Wally Pipp an MVP candidate in the playoffs.To find out, I created a reasonable facsimile of Football Outsiders’ adjusted line yards and then calculated the number of yards each team earned either over or under expected based on the number of men in the box and the field position from which the play originated.6I removed QB scrambles but left WR run plays in. I also did not adjust for shotgun. Finally, I did not scale the adjusted line yards metric so that it looks like running back yards per carry. My version of adjusted line yards will not agree exactly with Football Outsiders, but there still is a high degree of correlation. Each metric predicts the other at an r-squared of 0.68.Both Football Outsiders’ line yards and my version agree that the Rams had the best rushing offensive line unadjusted for box count. When we look at line yards over expected after accounting for box defenders, however, the Rams aren’t the best run-blocking offensive line ever. In fact, they’re not even in the top four since 2009. 18New England20093.062.720.364.43 *Box-adjusted line yards adjusts for number of defenders faced near the line of scrimmage.Source: ESPN Stats & Information Group But an NFL offense is not just at the mercy of the defense when it comes to running against stacked or light boxes. Play-callers actually have a large degree of control over how many defenders near the line of scrimmage they will have to face. When an offense trots out three or more wide receivers, the defense nearly always matches with an equal number of defensive backs, which limits the number of linebackers on the field and lightens up the box.Since the 2009 season, the number of rushing plays that faced six or fewer defenders in the box has skyrocketed. This is a reflection of an evolving offensive philosophy, not a defensive one. The increasing number of light boxes was a response to the massive shift by NFL offenses to the “11 personnel”: 1 running back, 1 tight end and — most importantly — three wide receivers. Over the course of the past decade, the 11 personnel became the most popular personnel package in the NFL. It’s now the base NFL offense. And nickel5Defenses with five defensive backs on the field. is the current base defense — a sea change from the previous decade when 3-4 and 4-3 defensive fronts were the norm. 2New England20103.322.730.604.82 10Washington20123.162.740.434.24 Teamseason538 adj. line yds538 box adj. line ydsbox adj. line yds over expectedfootball outsiders adj. line yds 8New England20173.082.650.445.05 One explanation is that the Los Angeles Rams offensive line is just very, very good, and Gurley has been reaping the rewards. But I think there’s another factor at work — one that has more to do with the head coach than with the players on the field.Some football observers have gone so far as to suggest that the Rams 2018 run-blocking unit might be the best in the history of the NFL. While offensive lines are perhaps the trickiest position to evaluate with data, there’s actual evidence for this scorching-hot take using a metric created by Football Outsiders called adjusted line yards. Adjusted line yards are calculated by looking at each running play and using a formula to attempt to assign the proper credit to the offensive line. The metric punishes blockers for losses on run plays, credits the hog mollies with half of the yardage on runs from 5 to 10 yards, and gives the line zero credit for any field position gained 11 yards beyond the line of scrimmage.2Football Outsiders also adjusts for plays from shotgun, down, distance and situation, and it removes any scrambles and handoffs to players who aren’t running backs. By this measure, the Rams are the best-performing line in at least the past 22 years, the period for which data is available.31996 to 2018.But one problem with adjusted line yards is that the metric doesn’t account for the number of defenders the offensive line has to face during any given play, which has huge implications for how effective a rush will be. Running the ball when there are seven or eight defenders near the line of scrimmage is much harder than running against six or fewer. If a team runs more of its plays against light fronts, we should expect it to have more success in general. We’d also expect the offensive line in particular to have an easier time opening holes against defensive fronts that have fewer, rather than more, defensive players near the line of scrimmage that they have to block.Looking at 10 years’ worth of data from ESPN’s Sports & Information Group,4For a total of 126,154 running plays. We excluded scrambles and any plays for which no defender data was given. that’s exactly what we find. If we split the field up into 10-yard chunks, there isn’t an area of the gridiron that exists where running against seven or more men in the box is easier than running against six or fewer. 13New England20183.042.650.415.03 11Baltimore20183.122.710.434.61 5Los Angeles20183.312.830.515.49 1San Francisco20123.192.570.634.50 3New Orleans20113.312.730.594.95 14Houston20103.012.610.414.52 7New Orleans20183.122.690.455.19 Todd Gurley began the 2018 season on fire, accumulating yards and scoring touchdowns at a historic pace. Despite missing the final two games of the season, the second-highest-paid running back in the NFL led the league in rushing touchdowns and finished fourth in yards from scrimmage. And yet, Gurley may start Super Bowl LIII as a backup. Since returning from injury, the Rams star has been outplayed by fill-in journeyman running back C.J. Anderson, who has more or less relegated Gurley to a change-of-pace role.How is this even possible? How can a player go from being the league’s premier running back to backing up a guy who was cut by the Denver Broncos in May, the Carolina Panthers in November and the Oakland Raiders in December? We’ve seen backup running backs fill in admirably before — when the Chiefs released star RB Kareem Hunt this season, Damien Williams was just as, if not more, productive1Williams averaged 114 yards from scrimmage and 1.6 TDs in regular-season games he started, while Hunt averaged 109 yards from scrimmage and 1.4 TDs. — but it’s hard to remember it happening to a back as seemingly indispensable as Gurley, let alone on a stage as big as the Rams are on now. 15Seattle20123.142.780.374.42 12Carolina20113.112.710.424.32 9New York20103.172.730.434.56 17Dallas20092.982.600.374.48 19Tennessee20163.052.700.364.63 16Kansas City20103.062.700.374.44 6Miami20093.012.550.474.44 4Jacksonville20103.202.620.594.63 The Rams have the fifth-best offensive line since 2009NFL offensive lines by two metrics for regular-season adjusted line yards, yards accounting for the number of defenders in the box and yards over expected based on defenders in the box, 2009-2018 In fact, if all you know about a running play in the NFL is the approximate field position of a team and the number of defenders near the line of scrimmage, you’re able to predict the leaguewide yards per carry with an extraordinarily high degree of accuracy: 96 percent of yards-per-carry totals are explained by the offense’s field position and the number of men the opponent has in the box. How many defenders are in the box is almost certainly the most important factor in determining rushing success in football, so it follows that we should try to account for it. The 2012 San Francisco 49ers — who were 5 yards from winning a Super Bowl under Jim Harbaugh and QB Colin Kaepernick — take the honor of fielding the best run-blocking offensive line since 2009. Thinking back on the number of big plays Frank Gore broke off against stacked boxes, the ranking certainly passes the smell test. The 2010 Jaguars offensive line, ranking just ahead of the Rams, was also formidable: It opened massive holes for Maurice Jones-Drew and Rashad Jennings, who combined for nine touchdowns and 1,783 yards on the ground despite QB David Garrard doing nothing to scare opposing defenses away from crowding the line and trying to stop the run.The Rams still fielded the fifth best offensive line in our time frame and easily the best this year. But much of the credit for the success of the running game should probably go not to Gurley, Anderson or the Rams offensive line, but to Sean McVay. The second-year coach has put his players in the very best position to succeed through his scheme and play-calling. Running the ball out of the 11 personnel helps dictate to the defense and lightens the box for his linemen, allowing them to open holes even thrice-cut journeyman running backs can run through.While league observers can fall into the trap of over-weighting the effect of coaching, in some cases the credit and praise is warranted. The distribution of talent across teams is so even, it’s really not so much a matter of who you run the ball with — or behind — it’s a matter of when you run it. McVay chooses his spots as well as anyone in the NFL, and the Rams are in Super Bowl LIII because of it.Check out our latest NFL predictions. read more

Woman gets 2 days in jail for killing dogs on her property

first_imgMCMINNVILLE, Ore. — A woman who fatally shot two of her neighbors’ dogs after they wandered onto her rural McMinnville property has been sentenced to two days in jail.The Oregonian/OregonLive reports 44-year-old Nicole Erica Wood was also sentenced Monday to pay a $1,000 fine, be on probation for 18 months, complete 200 hours of community service and give up the two guns she used to kill the dogs in 2016.The dogs, a boxer and a German short-haired pointer, belonged to two families who lived about three-quarters of a mile away from Wood.Wood told police she thought the dogs had killed her cat a few months earlier and were a neighborhood menace. Investigators say she warned one of the dog’s owners that if the dogs stepped on her property again, she’d kill them.She was found guilty of two counts of animal abuse.last_img read more

Martin Keown blasts Arsenals transfer policy

first_imgFormer Arsenal defender Martin Keown has blasted the club’s January transfer policy amid reports Unai Emery will only be able to sign players on loan.Reports suggest that Emery will only be allowed to make permanent signings if the club can sell Mesut Ozil this month.The policy has not deterred Emery going after Barcelona midfielder Denis Suarez, although any deal to bring the former Villarreal midfielder to the Emirates will be a loan move with a view to a permanent move in the summer.With Arsenal sitting fifth on the Premier League standings and battling to secure a top-four spot, Keown admitted he is surprised by a “very weird situation” with the Gunners.“It’s a very weird situation at Arsenal,” he told talkSPORT on Thursday.Premier LeaguePremier League Betting: Match-day 5 Stuart Heath – September 14, 2019 Going into the Premier League’s match-day five with a gap already beginning to form at the top of the league. We will take a…“For the club to say they’re only allowed to loan players…”“This is the sixth-wealthiest club in the world! And we can’t buy a player in this transfer window?”“I think that’s astonishing.”last_img read more