Crookes tube

Figure 3, Affinity Column: Protein Concentration and Enzyme Activity, shows the two peaks for protein concentrations on the red line. The blue line, showing the enzymes activity, overlaps with test tube six that contained the active trypsin. The lack of overlap over test tube one combined with a peak for a protein concentration identifies the inactive trypsin. Using the equation in the sample calculation of trypsin percentage, it was found that there was 75.6% yield of trypsin. Future…

My friends and I consider ourselves to be very spontaneous and adventurous. It was one cold week in February of 2016, when a group of about 6 of my friends (including me) all decided that we wanted to go to Vermont for the weekend to ski and snow tube. Considering this would be my first trip with no parental guidance at all, I was apprehensive about asking my mom. On the way to drop me off after school one day, my best friend Tony told me to tell her that he was going too so then she’d say yes…

Determination of Most Advantageous Sequestering Agent By: Kayla Jeeter and Ashley Driscoll Chemistry 112-508 Abstract The creation and execution of this project served to determine what material is a better sequestering agent of the polycyclic aromatic hydrocarbons (PAHs) that are found in Texas’ water. Charcoal is currently the most typical agent used to sequester PAHs. In this experiment, two different Bentonite clays (zeolites) were synthesized, one magnetized and one not, to determine if…

They discovered a form of testing called in vitro which was based on human cells using robotic screening (Bin, A264). Through this method, human tissue is grown in test tubes which are then exposed to the new substances being tested (Cole). Test tube testing eliminates animals from being poisoned in order to differentiate toxic from non-toxic ingredients (Cole). This artificially grown tissue has proven to have more accurate results in testing irritation than…

Children and Media Devices Our media devices have become a valuable part of our everyday lives and the way we communicate; we get text messages for our dentist appointments and e-vites for birthday parties. Mostly this is viewed as a helpful and informative tool for staying in contact with friends and family or receiving news updates and for educational purposes. But, as with most things, there is a limit; how much is too much? My goal is to look specifically at children and the short and long…

Electronic devices are everywhere in world today, from internet of things to machine learning super computer to computer cars helping people communicate locally and globally with ease. People think of computers, cell phones and the Internet as the only sources for digital evidence, but any piece of technology that processes information can be used by criminals in a criminal intent. Investigators need to be able to recognize and properly seize potential digital evidence. Digital evidence is…

intubation but often have difficultly during advancing the nasotracheal tube into the trachea, differences in pediatric airway structure relative to adults are thought to be the reason of this problem. The modified pediatric Magill forceps (modified by Farrukh and his colleagues) added anteroposterior firm grasping of the nasotracheal tube enables us for elevation and downward rotation of the nasotracheal tube which makes the tube in line with the axis of the trachea facilitating its passage…

1. The media I use the most is television, while print is my least used form of media. This is what I had expected, since I rarely feel the desire to sit down and just read during the school year, I’d rather watch several television episodes. Relaxing on my bed or couch watching TV or Netflix sounds like a more enjoyable evening, instead of sitting at my desk reading boring textbooks for physics. Plus, I traveled home this weekend and all of my recorded shows were ready to be watched, since…

nurse we evaluate patients who are referred for recurrent ear infections to determine if surgical intervention is recommended in the way of pressure equalization tubes, which act as a bypass to the eustachian tube. The pathophysiology of this condition is characterized by some form of intrinsic or extrinsic factor resulting in eustachian tube dysfunction from a classic understanding of the disease. However, some studies point to the initial inflammation occurring in the middle ear and the…

If, hypothetically, some sort of cosmic storm created an EMP signal or something of the other that rendered all digital equipment on earth inoperable, I would spend my time reading, playing ball games with my friends, hiking, biking, relaxing on the beach and enjoying nature in general. Also, I can give my eyes a break! Since our lives are constantly immersed in technology and activities, we can use the downtime to do what we don’t typically do — activities that require no electronics. Those…