![]() ![]() The refractive index difference between the particle and the surrounding medium is infinite.Particles of all sizes scatter light with the same efficiency.Light is scattered only at narrow angles.The particles being measured are opaque discs.It is recommended that 10x the laser wavelength is the minimum for this approximation. The particle size must be relatively large.It provides a simpler approach by additionally assuming that: The Fraunhofer approximation of the Mie theory was a much easier model to use and was therefore widely adopted at this stage. In the late 1970s, when laser diffraction systems were first introduced, limited computing power made it difficult, and impractical, to rigorously apply Mie theory. The Mie scattering theory and the Fraunhofer diffraction approximation are two key theories used to calculate the type of light intensity distribution patterns produced by particles of various sizes. Laser diffraction relies on optical models to help scientists understand data produced. Speak with the ATA Scientific team today to get expert advice on the right instruments for your research Request free consultation Laser Diffraction Models Looking for the perfect analytics instrument for YOUR next big discovery? These angular scattering patterns are measured with various specially-designed detectors and particle size distribution is determined from the resulting data. During a laser diffraction experiment, particles are illuminated in a collimated laser beam – producing a scattered pattern of light – allowing scientists to deduce particle size and shape.Īs a general rule, the bigger particles will bring about a high intensity of scattering at low angles to the beam and the smaller particles, on the other hand, create a low-intensity signal at far wider angles. Ensemble techniques use a broadened beam of laser light which scatters the light on to a specialised lens to offer a greater collection. Laser diffraction is what is known as a ‘cloud’ or ‘ensemble’ technique meaning it offers a result for the entire sample, as opposed to providing information for individual particles. Detectors – Specialised detectors (typically an array of photo-sensitive silicon diodes) are applied to measure the light pattern produced across a range of angles.A sample presentation system – This ensures that the material being tested successfully travels through the laser beam as a stream of particles that have a known state of dispersion and can be reproduced.A laser – This is necessary as a source of intense and coherent light that’s of a defined wavelength.The latter offers the greatest scope for accurate particle size analysis assuming the diffraction system contains the following: When light and surfaces interact, it results in either solely or a mix of refraction, reflection, absorption or diffraction. Laser diffraction is grounded in the relationship between light and surfaces (in our case particles). The scope for automation means modern particle size analysis can often be a matter of loading the sample and hitting a button, which is an exciting prospect for pharmaceutical companies looking to scale their research. Semisolid drugs have some of the properties of solids and some of the properties of liquids, so understanding the size of the particles they contain is crucial in knowing how each particular product should be delivered to the human body. One example of this is the efficacy of ‘semisolid’ drugs, that are often used in ointments, creams, gels or lotions. Recognised for its capacity to reproduce results and size range spanning five orders of magnitude, laser diffraction has emerged as the technique of choice throughout the pharmaceutical industry where examining particle size is crucial in determining the performance of a product or process. ![]() Over the last twenty years, laser diffraction has, to a large extent, replaced traditional methods of particle size analysis, such as sieving and sedimentation (a previously common practice for granular material). The Role of Laser Diffraction in Particle Analysis As a technique that measures particle size distribution for both wet and dry dispersions, it offers many advantages, including a high level of precision, fast response, high potential for the repetition of results, and a wide measurable particle diameter range. Laser diffraction has emerged as one of the most important and effective techniques in the world of particle size analysis thanks to its fast, non-destructive properties, its suitability for a broad range of particle sizes, and its ability to be fully automated. ![]()
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![]() ![]() Related: How We Use Foraging to Teach #2. ![]() These activities extend the natural science education available in our science curriculum. ![]() These long days offer the opportunity for unique hands-on summer learning that our kids don't get in other seasons.įor example, nature walks and picnics allow for hands-on outdoor nature studies, spontaneous art sessions, and foraging berries and wild edibles. Unique Hands-On Summer Learning Opportunities We get almost 24 hours of sunlight through June, July, and into August. And the summer months are short, but the days are long. Yet as we live very far north, there's a pretty dramatic difference in daylight hours depending on the season. In our case, homeschooling and homesteading off the grid means our children get some pretty unique learning experiences - regardless of the season. Reasons We Homeschool in the SummerĪs any homeschooling family will tell you, it's a lifestyle. Here's the lowdown on how to homeschool through the summer and why we stick to a homeschool summer routine, plus some tips on creating the best homeschool schedule for your family. However, as a busy homeschooling and working mom, I need a routine as much as the kids do. Basically, we focus on reading for fun, writing for fun, and hands-on learning outdoors. We homeschool year-round, yet move at a more gentle pace through the summer. Homeschool schedule in the summer, you ask? Well, it's really more of a summer routine. ![]() ![]() ![]() bashrc The regex searches for the character string. Grep Regex Example Run the following command to test how grep regex works: grep if. I want to grep the line which has the string 'samba' only. Both the option you gave is not working in my case. Yes I read the grep manual and I am unable to locate the exact switch for grep which i need. Which would also return lines where the second field is 71161.0 or 71.161e3 or 0x115f9 (for GNU awk, you need to pass POSIXLY_CORRECT in the environment for hexadecimal numbers to be considered though). Pearl Compatible Regular Expressions ( PCRE) By default, grep uses the BRE syntax. If youre grepping for a word, you can also use grep -w .![]() Explanation: Your problem is how to cut the right column, because grep only grab the lines which matches your patten. it is : following -d you may change this delimiter to suit future file format. both single quote and the backslash are necessary 2. You can also do numeric comparisons with: awk '$2 = 71161 || $2 = 71072 || $2 = 72617' < mainfile Try this: cat yourfile cut -f1 -d: grep Note: 1.![]() So to guard against that you may want to set LC_ALL to C). For instance on a GNU system in a UTF-8 locale, a POSIX awk would return true for "71161" = "٧١١٦١" because in current versions of those GNU locales, the Eastern Arabic digits collate the same as the Western Arabic (English) equivalents. (Beware that for POSIX awk implementations (not the ones typically found on current Linux distributions though), the = operator applied to strings tests whether the two strings collate the same, which can be different from being equal. 1 01-21-2013 Subbeh Registered User 334, 87 Exclude dash in grep Hi, I must be overlooking something, but I don't understand why this doesn't work. Adding helped to only change the samplename. Or: awk '$2 ~ /^(72617|71072|71161)$/' < mainfile I thought <> could be used to find an exact match, but when I use this, nothing is changed.Thanks in advance - Post updated at 06:33 AM. Awk may be a better choice here: awk 'BEGIN $2 in a' < mainfile Hi This time Im trying to grep for an exact match e.g .bird.pig horse dog dog pig.dog how do I grep for dog only so that a wc -l would result 2 in above case. ![]() ![]() ![]() ![]() My dog acts considerably more distraught when she is anxious than when she is in pain, which is also typical for pets who are dying. ![]() How was his behavior? Was he nervous in the exam room? Did he give you that “This is terrible!” look? Now, think back to when he was last hurt, perhaps scraping his paw, or straining a muscle after running too hard. Think about the last time your dog went to the veterinarian. Frankly, anxiety can be worse than pain to animals. When considering euthanasia, you should be as concerned about your pet’s anxiety as you are about their pain. If you’re interested in learning more about pets’ pain and suffering, read chapter five in Temple Grandin’s book Animals in Translation. We react to Fluffy’s cancer diagnosis much differently-Fluffy doesn’t know she has a terminal illness, so it bothers us more than it bothers her. In addition, animals do not attach emotion to their pain like humans. This is vastly different from prey animals, such as rabbits and guinea pigs, who must hide their pain to prevent being attacked. Many professionals believe carnivorous animals, such as cats and dogs, do not “hide” their pain, but are not as bothered by pain as humans. Pain is one of the most important topics we discuss in veterinary hospice care. The common diseases articles in the education section on our website contain information about specific changes you can expect with various medical conditions It is important to understand the disease process your pet is experiencing to properly evaluate their quality of life. Alternatively, an older Labrador retriever with arthritis can be maintained at home with adequate pain management for an extended time period. For example, a pet owner should make the decision to euthanize a Yorkshire terrier with congestive heart failure before painful symptoms, such as difficulty breathing, arise. Their response is also highly dependent on the disease process at hand, making in-depth discussions with your regular veterinarian an important part of the process. Like humans, every pet will experience and react to changes in their body differently. Assessing your pet’s quality of life, which is subjective, and highly dependent on your dog or cat’s disease process, their personality, and your personal beliefs, is difficult. You have probably heard the term “quality of life” in conversations with your family veterinarian or people close to you. After all, you know your pet better than anyone-including your veterinarian. Some owners need time to come to terms with their pet’s decline, while others want to prevent any unnecessary suffering at all.Įvery pet owner is different and entitled to their own thoughts and beliefs. During this subjective time, however, the family has to make whatever decision is best for them. Prior to this time, veterinarians may refuse to euthanize a pet because they still have a good quality of life, but after this period passes, we may advocate for euthanasia, because their sustained suffering is obvious. Rather, there is a subjective time period, which may be hours, days, weeks, or months, when euthanasia is the appropriate decision. There is no perfect moment to make this ultimate choice, unless the pet is truly suffering-something we are trying to prevent in the first place. The hardest part of the experience is making the actual decision, and I’m asked on a daily basis, “Doc, how will I know when it’s time?”Īs veterinarians, our job is to help a family make this difficult decision. They forget that euthanasia is a gift that, when used appropriately at the right time, prevents further physical suffering for the pet and emotional suffering for the family. Families may feel that they are letting their pet down, or that they are causing their best friend’s death. Deciding to euthanize a pet can feel gut-wrenching, murderous, and immoral. This might sound blasphemous to some, but to many, it’s the cold truth. ![]() We have heard from countless pet owners that the death of their pet was worse than the death of their own parents. ![]() ![]() And they contacted ArtSpeak Creative to help craft their message, visual identity, and launch site. ![]() They were already at work with the Assemblies of God and the Church Multiplication Network. Bart and Lauren wanted to find a way to intrigue and draw fearful people into a bold life of faith. Elizabeth Hagan’s Brave Church is a thoughtful and compassionate how-to guide for discussing a wide range of topics that have historically been swept under the rug in church. The Lindseys had another insight: The people they wanted to reach deal with high levels of fear. The city itself is diverse culturally, ethnically, and religiously - a diversity that makes it somewhat resistant to change. Not only that, but Missouri City is multiplying, seeing 101.4% growth annually (the US average is 17%) with Gen Z leading the way. Search ads Brave Search is the fastest-growing search engine since Bing, with over 6.5 billion annualized searches. Stay in the know by receiving notifications for events and ministries, and listen to. Build consideration for products or services through content-adjacent ads in Brave News, a fully private news reader in every Brave Browser. They saw the need for a church that could reach those who had discounted the idea of “church” altogether - precisely what the Lindseys hoped to do. Stay up to date on BRAVE news and events, listen to sermons, and give online. BRAVE with Jeff Schwarzentraub is a weekend 25-minute radio program, a ministry of BRAVE Church in Denver, Colorado. ![]() Several churches are already doing great work there.īut when Bart and Lauren visited Missouri City, they spoke with area pastors who would welcome another expression of church. bold resolute authentic virtuous engaged. Missouri City, a suburb of Houston, presents unique challenges for church planters. BRAVE Church corporate office is located in 3651 S Colorado Blvd, Englewood, Colorado, 80113, United States and has 35 employees. ![]() ![]() Amy Bratten, teaching at Southeastern was a natural choice because it kept her in Polk County, where she has been living, learning, and teaching for all but five years of her life. MA in Teaching English to Speakers of Other Languages (TESOL), University of Central FloridaĮdD in Organizational Leadership, Nova Southeastern Universityįor Dr. Harrington's father has since died, but her mother and three sisters are still alive, officials said.BA in English Literature, University of Florida He's going to die in jail and then he's going to have to find out what the God he professes to believe in holds for those who are this evil to our children." "We're going to convict him," Stollsteimer said. He is fighting extradition and officials are working to get a governor's warrant to bring him to Pennsylvania. Zandstra was taken into custody in Georgia, and he remains in jail in Cobb County without bail. "I don't know if he's sorry for what he did, but this is a weight off his shoulders for sure," Tray said. ![]() Trooper Eugene Tray, who interviewed Zandstra, said the alleged killer seemed relieved. He attempted to cover up her body and left the area." ![]() The victim was bleeding, and he believed her to be dead. "When she refused, he struck her in the head with a fist. "The defendant stated that he had parked the car and asked the victim to remove her clothing," officials wrote in a news release. He admitted that he was driving a green station wagon that day and said he'd offered Harrington a ride and taken her to a wooded area. At first, he denied his involvement in Harrington's disappearance, but after he was confronted with the evidence provided by the alleged groping victim, Zandstra admitted to seeing Harrington on the day she vanished. Investigators then met with Zandstra in Marietta, Georgia, where he currently lives, on July 17, officials said. She told Zandstra's daughter what had happened and the daughter "replied that the defendant did that sometimes," the district attorney's office said. She told police that during one sleepover when she was 10, she woke up to Zandstra groping her. The alleged victim, who was not identified, was best friends with Zandstra's daughter and slept over at the home often, authorities said. 2 of this year, investigators spoke with a woman who alleged Zandstra had abused her as a child. Office of the Delaware County District Attorney ![]() David Zandstra, 83, is charged with murder in the 1975 killing of 8-year-old Gretchen Harrington. Police interviewed Zandstra in October of 1975, but he denied seeing Harrington on the day she'd disappeared. ![]() Harrington's skeletal remains were found two months later in Ridley Creek State Park, authorities said.ĭuring the investigation, a witness told police they'd seen Harrington speaking with the driver of either a two-tone Cadillac or a green station wagon, the latter of which Zandstra was known to use. The camp used the premises of both the Reformed Presbyterian Church and the Trinity Church Chapel Christian Reform Church, where Zandstra was a pastor. 15, 1975 for her summer bible camp, Stollsteimer said. Harrington left her Marple home around 9 a.m. He was interviewed during the initial investigation in 1975, but it wasn't until a police interview this year that investigators were able to gather enough information for an arrest, District Attorney Jack Stollsteimer said. Police have arrested an 83-year-old former pastor on murder charges nearly 50 years after he allegedly abducted and killed 8-year-old Gretchen Harrington in Pennsylvania, officials said Monday.ĭavid Zandstra has been charged with criminal homicide, first, second and third degree murder, kidnapping of a minor and the possession of an instrument of crime. Former pastor, Georgia man admits to killing 8-year-old Delco girl in cold case: officials Former pastor, Georgia man admits to killing 8-year-old Delco girl in cold case: officials 02:57 ![]() ![]() Tool-free assembly – Screwing or bolting together shelves is tedious work. If you want to load up a 21-inch lawn mower for the winter, you’ll need to pick a deeper 24-inch version of these shelves. The most common shelf depth is 18 inches, which holds most of the best storage containers in smaller and medium sizes. Shelf dimensions – Check carefully for how much space you have in your garage, and remember that you’ll need room to stand in front of the shelves. Wire rack shelving is more rigid because the shelves have truss-reinforced welded side support. Of the boltless clip-together shelving units we tested, only the Gladiator comes with a center support bracket, though you can sometimes buy aftermarket supports. If you weigh down the middle of an unsupported chip-board shelf with even half that much weight, it will bow or even break. True weight capacity – A shelf’s maximum load rating (often in hundreds of pounds) assumes evenly spread weight and is determined by the strength of the frame. In less demanding conditions, chip-board shelves are stiff and fairly attractive and can be painted to protect it. Shelf material – If you need water or mildew resistance because you’re parking wet vehicles right next to your storage, wire shelving is your best bet. ![]() Edsal makes most of the boltless shelving that’s sold in hardware stores, and wire rack shelving is even harder to tell apart. Except for one, these designs all turned out to be generic. We compared all the tool-free-assembly shelves we could find locally with popular models online, and bought a less-expensive and a more-expensive option in both wire-rack shelving and boltless shelving. Cabinets are nice if you do painting work or make a lot of dust in your garage, but most of the time the doors are just in the way. If you want to install drawers or cabinet doors on your shelves there are purpose-built systems available, but free-standing shelves are far more versatile and a better buy in most cases. The components are simple, but when you slide them all together the resulting shelf is strong. If you leave out industrial and DIY options, the obvious choice is tool-free shelving kits. ![]() The weight capacity of more expensive shelves is better if you want to store a spare engine for your muscle car, but pallet racks are tricky to assemble and not as efficient when you just need a place for your collection of heavy-duty storage tubs. Only shelves under $200Īfter considering industrial pallet racks shelving that’s designed to hold loaded freight pallets, we decided to eliminate anything that costs above $200 per shelf. We also checked garage and workshop storage system reviews on YouTube and Reddit. If you’ve got a particular shelving need, there’s someone out there who makes a product or has a DIY plan.īut to find out specifically what most garage enthusiasts are installing, we scoured forums like, and for garage storage ideas. We spent a long time narrowing down the available options. Our garage testing team has built and maintained everything from cheap two-by-four shelves in farm sheds to pallet racks at an audio-video rental warehouse. If you want more flexibility, the 14-inch-deep Amazon Basics – Wire Racks are an affordable way to store smaller items. With center-braced 48-by-18-inch shelves and pre-welded components for easy assembly, this is a great way to keep your garage organized. After researching online and inspecting popular options at national chain stores, we bought the top sellers and found that the Gladiator – Heavy Duty Rack with wire deck is the best garage shelving rack. ![]() ![]() With extra lead time and direct access to the latest and greatest in 3M products and pricing, we are poised to help you keep your business on the cutting edge. Shear Strength At 72 Degrees F 22 Degrees CĪs a 3M Strategic Distributor, we receive notice of the newest 3M products - often before the rest of the market - and enjoy special promotions and unique offers. 3M Fall Protection (DBI-Sala, Protecta, etc)ģMâ„¢ Removable Repositionable Adhesive 1000Ĭonverter Solutions Craft Electronics General Industrial Medical Packaging Paper Point of Purchase Print Signage.Office, Stationery, and Mailing Products.Replacement Parts for Tape Dispensers and Case Sealers.Occupational Health and Safety Products.Dispensers, Applicators and Accessories for Structural Adhesives.Construction and Home Improvement Products.No returns on custom orders no exceptions. We don’t guarantee that we will receive your returned item. ![]() If you are shipping an item over $75, you should consider using a traceable shipping service or purchasing shipping insurance. If you receive a refund, the cost of return shipping will be deducted from your refund.ĭepending on where you live, the time it may take for your exchanged product to reach you, may vary. You will be responsible for paying for your own shipping costs for returning your item. To return your product, you should mail your product to: 49 Rider Avenue, Patchogue, N.Y. If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return. Once the returned item is received, a gift certificate will be mailed to you. If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. If you need to exchange it for the same item, send us an email at and send your item to: 2049 Flatbush Ave Brooklyn, N.Y. We only replace items if they are defective or damaged. Only regular priced items may be refunded, unfortunately sale items cannot be refunded. If you’ve done all of this and you still have not received your refund yet, please contact us at items (if applicable) There is often some processing time before a refund is posted. Then contact your credit card company, it may take some time before your refund is officially posted. If you haven’t received a refund yet, first check your bank account again. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days. We will also notify you of the approval or rejection of your refund. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. Items with obvious signs of use that has been openedĪny item not in its original condition, is damaged or missing parts for reasons not due to our errorĪny item that is returned more than 30 days after delivery There are certain situations where only partial refunds are granted (if applicable) Please do not send your purchase back to the manufacturer. To complete your return, we require a receipt or proof of purchase. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. Several types of goods are exempt from being returned. ![]() It must also be in the original packaging. To be eligible for a return, your item must be unused and in the same condition that you received it. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. ![]() ![]() ![]() 1Password master passwords cannot be brute-forced He says that most passwords can be cracked in fewer than 10 billion guesses, and that this could be done for around $100. What matters is whether yours is going to be among the few billion that attackers try first. ![]() So if you (or another human) created that 12-character password, it doesn’t matter if there are 2 72 different possible 12-character passwords. ![]() The cracking systems will try things like Fido8my2Sox! and 2b||!2b.titq long before they try things like the machine created created by humans are crackable even if they meet various complexity requirements. Goldberg uses the same reasoning as Palant: real-life master passwords for most users are not random – and password crackers know this. LastPass security attacked by 1PasswordġPassword’s principal security architect Jeffrey Goldberg says in a blog post that even this over-estimates the difficulty – and says that if someone wanted to crack a typical LastPass customer’s master password, the process would cost only around $100. He estimated that the actual time needed for a targeted attack would be around two months. In particular, he said it wasn’t true that it would take “millions of years” to crack master passwords and get access to all of a customer’s logins. However, independent security analyst Wladimir Palant this week took issue with no fewer than 14 of the claims made by LastPass, describing them as “ full of omissions, half-truths and outright lies.” As a reminder, the master password is never known to LastPass and is not stored or maintained by LastPass. These encrypted fields remain secured with 256-bit AES encryption and can only be decrypted with a unique encryption key derived from each user’s master password using our Zero Knowledge architecture. The company went to great pains to point out that the password vaults used strong encryption, and could not be accessed without customers’ master passwords. The company has shared that copies of customers’ password vaults were obtained along with names, emails, billing addresses, phone numbers, and more. LastPass last week revealed the extent of that data – and it was far worse than had been suspected. We have determined that an unauthorized party, using information obtained in the August 2022 incident, was able to gain access to certain elements of our customers’ information. However, it subsequently emerged that the attacker then used this information to gain wider access to LastPass systems, and was then able to access customer data. Instead, said LastPass, an attacker took part of its source code and “some proprietary LastPass technical information.” After initiating an immediate investigation, we have seen no evidence that this incident involved any access to customer data or encrypted password vaults. Two weeks ago, we detected some unusual activity within portions of the LastPass development environment. At the time, the company said that no customer data was accessed. BackgroundĪ LastPass security breach was revealed back in August. Indeed, it says, it would cost just $100 to crack the master password of a typical LastPass user. ![]() LastPass claimed that cracking users’ master passwords would take millions of years, but 1Password says that this isn’t true for most users. After an independent security analyst described statements made by LastPass as “half-truths and outright lies,” rival password management company 1Password has also weighed in … The LastPass security breach controversy continues. ![]() ![]() Please read our parking and transportation suggestions. Parking at the Multnomah Building is very limited. Payment can be cash, check, money order or credit card.įailure to bring all necessary application materials will result in forfeiture of your appointment. There is a separate $35 acceptance fee per application, payable to Multnomah County. ![]() We do not accept credit cards for the application fee. If no appointments are available for the same day, you can still book an appointment on the scheduling website below.īefore you schedule an appointment, please read this important information about applying for a Passport at Multnomah County:īring a check or money order payable to the US Department of State for the passport application fee. These appointments book fast and we encourage you to call early. You can call us between the hours of 8:30am-10:30am to check today's availability. ![]() Same Day Appointments: We are offering a limited number of same day appointments. If you can’t find an appointment that works for you, check back regularly. Walk-in service is not available.Īppointments can be made on the scheduling website below.Īppointments are booked on a 30-day rolling window, with new appointments added daily. Passport applications are accepted by appointment only Monday-Friday 8:30am -3:30pm. How do I apply for a passport at Multnomah County? Department of State.ĭART is unable to check the status of an application already received by the State Department. If you have questions about a passport you already submitted, contact the U.S. Multnomah County DART is a passport acceptance agent for the U.S. Please allow additional time for mailing. ![]() Processing times DO NOT include mail times. Current Passport Processing Times (Standard): 10 to 13 weeksĬurrent Passport Processing Times (Expedited): 7 to 9 weeks ![]() |
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