Longisquama - Facts and Figures

Name: Longisquama (Greek for long scales); pronounced LONG-ih-SKWA-mah Habitat: Woodlands of central Asia Historical Period: Middle Triassic (230-225 million years ago) Size and Weight: About six inches long and a few ounces Diet: Probably insects Distinguishing Characteristics: Small size; feather-like plumes on pack About Longisquama To judge by its single, incomplete fossil specimen, Longisquama was closely related to other small, gliding reptiles of the Triassic period like Kuehneosaurus and Icarosaurus. The difference is that these latter reptiles possessed flat, butterfly-like wings of skin, whereas Longisquama had thin, narrow plumes jutting out from its vertebrae, the exact orientation of which is a continuing mystery. Its possible that these quill-like structures extended from side to side and gave Longisquama some lift when it jumped from branch to branch of high trees, or they may have stuck straight up and served a strictly decorative function, probably related to sexual selection. Of course, it hasnt escaped the notice of scientists that Longisquamas frills seem to have stopped just short of being genuine feathers. A small handful of paleontologists have seized on this resemblance to propose that Longisquama may have been ancestral to birds--which would either cause this creature (which is tentatively classified as a diapsid reptile) to be reclassified as an early dinosaur or archosaur, or upend established thought entirely and trace modern birds back to an obscure family of gliding lizards. Until more fossil evidence is found, though, the current theory (that birds evolved from feathered theropod dinosaurs) appears to be safe!

The Leadership Style of King David - 3177 Words

Leadership 1 Essay 1 Take one leader in the Bible, other than Jesus, and evaluate his or her leadership style from using the framework of modern thinking on leadership and your own theological reflection. Introduction In her book Leadership Can Be Taught, Sharon Parks (2005, p.3.) suggests that the study of leadership is important for the common good in todays complex changing world. The term complex changing world could easily be used to describe the time covered by the early years of King David as described in 1 Samuel chapter 16 to 2 Samuel chapter 5, and 1 Chronicles chapter 11. This was the beginning of a turbulent Kingship for a dichotomous Israel, at a time of continual external agitation from their enemies. It was a†¦show more content†¦Verse three outlines the start of the forming of Davids band of miscreants; Also joining him was every person who was in distress, everyone who was in debt, and everyone who was discontented gathered to him. He became captain over them. And there were about four hundred men with him (NKJV). David is now the leader of an unstructured group of men discontented with the current political situation. They had been wronged and mistreated, were under a cu rse of debt that they could not pay. They were not trained loyal soldiers, but like David, are so distressed that they have no option left except to run and hide from their problems (Swindoll, 1997, p.74; Epp, 1965, p.56). Psalm 57 indicates that not only were they hiding, but they were angry and wanting vengeance on those they felt had wronged themï ¿ ½. Keller (1985, pp. 120,121) suggests that it was in living with these oppressed outcasts that David developed his compassion for those living under oppression. Chapter 23 starts with an acclamation of the transformation that Davids band of miscreant had undergone. It appears that David had been training his men into an army of soldiers, and although they had little faith in their own abilities as warriors, they had faith in David as a leader. When he said that they could overthrow the Philistines at Keilah, Davids army (now numbering 600) even followed him into what theyShow MoreRelatedLeadership As A Charismatic Leader1541 Words   |  7 Pagescharisma was not a major topic of discussion. The Charismatic approach is measured to reflect a particular kind of leader. They are usually strong self-confident individuals that portray competency. Their followers tend to mimic the goals and leadership style of the charismatic leader. They are gifted in articulating their ideas, â€Å"plans and goals to others while creating an ambiance that says, do as I do. They can articulate a compelling or captivating vision and can arouse strong emotio ns in followersRead MoreHenry Viii And Elizabeth Of York1038 Words   |  5 Pages Henry VIII Can you guess who this is? 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Preparation of Films for Staining Essay Example For Students

Preparation of Films for Staining Essay Title: preparation of films for staining Objective: to produce a thin smear of bacteria adhering to a clean microscope slide as preparatory to staining. Procedure: A. From broth cultures 1. Inoculating loop was sterilized using Bunsen burner and let to be cool before use it to obtain bacterial suspension from the tube. 2. The bacterial then placed in the center of the clean microscope slide. It also speared to produce thin films. 3. The films are set to air dry before wafting the slide gently on the Bunsen flame to fix and kill pathogenic bacteria. 4. The slide was place on a rack then the stain were apply. B. From agar cultures. 1. A drop of water was place in the center of the glass slide. 2. With sterilized inoculating loop to obtain a minute of bacterial culture from the agar cultures 3. It then mix with the drop of water and then proceeds as broth cultures. SIMPLE STAINING TECHNIQUES Material: 1. 24 hours broth cultures of a. E. coli b. Staph. aureus 2. 24 hours nutrient agar slants of a. Bacillus subtilis b. Pseudomonas aeruginosa 3. Slides 4. Inoculating loop 5. Dye solution a. Crystal violet b. Methylene blue c. Carbol fuchsin 6. Test tubes Procedure: 1. By using inoculating loop a minute of bacterial was transferred onto the glass slide. 2. Then a film of slide was prepared. 3. The prepared film then flooded with crystal violet, methylene blue,and carbol fuchsin. All of the stain it let to react about 30 seconds. 4. The excess stained was wash with slow running water. The excess water then blot before dry with Bunsen flame. 5. The slide then examine without the cover slip under the objective lens (x100) 6. The observation then recorded. Question In preparing a slide from a colony growing on an agar medium, why is it necessary to place only a minute portion of the colony on the slide? Answer To obtain a good slide from a colony growing on an agar medium it is necessary to place only a minute portion of bacterial colony. Because a thick film will reduce the light penetration on the slide that result error or not accurate images on the structure that we observed. On the other hand, thick film will make the structure we observed in clumps image or double or three layers, this will affect our observation. Therefore, it is really important to use only a minute portion of bacterial colony on the slide. Discussion: From the experiment, we know the simple stain is used to differentiate the shape of the bacteria, the arrangement, and also the size of the bacteria. The contrast between the one bacterium with another bacterium is poorly observed. Conclusion: In this experiment we are able to produce a thin smear of bacteria adhering to a clean microscope slide as preparatory to staining.

When Purchasing A Cellular Phone There Is Always The Question Of Analo

When purchasing a cellular phone there is always the question of analog or digital. In analog cellular service the voice is transmitted over a specific radio frequency, usually 800 MHz. Digital cellular service on the other hand breaks the voice down into a binary format where the voice is represented by a series of 1's and O's. These simple definitions will help to familiarize yourself with the two systems, but to truly determine which phone is right for you there are four issues that should be addressed, cost, sound quality, coverage, and features. Cost is an issue that is important to everyone so it must be considered when purchasing a cellular phone. Analog is the original cellular phone type, since the technology has been around for over 20 years these phones are considerably less expensive than digital phones. The cost of digital phones is higher because the technology is relatively new, and the phones tend to come with more features. Although, the minute rates tend to be higher for analog phones than that of digital. When comparing cost you must look at both the cost of the cellular phone and the cost of the cellular package. Sound quality is a crucial point to consider when purchasing a phone especially if it is going to be used for business purposes. Analog phones do not offer the best sound quality available in the cellular phone market today. One of the biggest advantages of digital phones is the sound quality. The binary code utilized by digital enables it to know exactly what it should be when it reaches the end of the transmission. That way, it can correct any errors that may have occurred in the data transfer. This means clarity, digital phone users receive the benefit of distortion free conversations. The issue of coverage also needs to be discussed when purchasing a cellular phone. Due to the fact that analog phones have been around for over 20 years they basically cover most rural areas. On the other hand, most digital networks are concentrated in urban areas. Digital equipped antennae are not yet covering the country the way that analog is, but they will be soon. Although overall coverage is better with analog, digital cellular allows more people to use their phones within a single coverage area. More data can be sent and received simultaneously by each phone user. When looking at features the user needs to determine what they will be using the phone for. Analog phones have very minimal features; they usually just have basic functions. If you need a more complex phone you should go for digital. Digital phones allow you to get text messages, wireless web, voicemail, caller ID information, and also provide more security than analog phones. Digital is also responsible for the new all in one devices such as the palm pilot, which can also be used as a phone and pager. The nature of digital technology allows it to fit many 1's and O's together into the same space an analog signal uses. Ultimately the phone you choose will depend on where you will be using it and what you will be using it for. Whether you go analog or digital depends on a number of things, it also might just be personal preference. Some people do not use their phone enough to care which type of signal it uses. The people that are going to be faced with the analog versus digital dilemma are the heavy cellular phone users. Although some people feel the question is a no brainer the analog system for the time being still offers some useful benefits.