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Free Read PowerPoint

Transcript: Free Read PowerPoint Project Judith Rumelt, better known by her pen name Cassandra Clare, is an American author of young adult fiction. Main Characters Summary Prominent literary item Will Herondale-Will has dark hair and ocean blue eyes. Will is rude and cruel because he believes everyone that loves him will die. He believes this because a demon put a 'curse' on him. Tessa Gray- Tessa has blonde hair and grey eyes. She is very witty and enjoys literature. Recommendation of book Setting Jem Carstairs-Jem has silver hair and eyes, due to the drug he was tortured with before his family was killed. He plays the violin and is very kind, caring, and lovable. The most unique thing in Clockwork Angel is that there are supernatural occurrences such as demons, shape shifters, witches, vampires, and werewolves, etc. I definitely recommend Clockwork Angel by Cassandra Clare. I recommend this book because it uses great figurative language, such as "The machine walked like a man." Also, "There was a boy standing in front of her. He couldn´t have been much older than she was-seventeen or possibly eighteen. He was dressed in what looked like workman´s clothes-a frayed black jacket, trousers, and tough-looking boots. He wore no waistcoat, and thick leather straps crisscrossed his waist and chest. Attached to the straps were weapons-daggers and folding knives and things that looked like blades of ice. In His left hand-slim and long fingered-was bleeding where she had gashed the back of it with her pitcher. But that wasn´t what made her stare. He had the most beautiful face she had ever seen. Tangled black hair and eyes like blue glass. Elegant cheekbones,and long, thick lashes. He looked like every fictional hero she´d ever conjured up in her head. Tessa Gray goes to London to live with her brother. When she arrives Tessa is captured by twin sisters dubbed 'the Dark Sisters'. She was tortured and forced to use her gift of shape shifting for evil until Will Herondale rescues her. He then takes her to the institute, a place for shadowhunters to be cared for. Tessa meets the residents of the institute, Charlotte Branwell, the head of the institute, Henry Branwell, Charlotte's husband and inventor of a many great inventions, Jessamine Lovelace, girly and against all things shadowhunter, Jem Carstairs, a kind but very ill shadowhunter. Presentation Themes Clockwork Angel by Cassandra Clare Most unique thing in the book Presentation by Canaan Hall Clockwork Angel takes place in the institute, and the Dark Sister's home. The institute is an old church with very many rooms for passing visitors. The Dark Sister's house is large but sparsly furnished, in Tessa's room there is a bed with restraints, a mirror, and a nightstand with a few books. The themes for Clockwork angel are; you always need friends that you can trust, don't judge someone by their looks you don't know what they are going through, and even someone you wouldn't expect could be the hero. Cassandra Clare One prominent literary item in the book is personification. Personification is used throughout Clockwork Angel, such as "The machine walked like a man." Another example is, "The door creaked with a noise that sounded like a scream."

Electro-cardiogram

Transcript: A. Explain Technique for Taking Electrocardiogram B. Explain Correct placement of the electrodes C. Explain The normal Electrocardiogram D. Discuss the Mean Electrical Axis deviation Normal Impulse Conduction Impulse Conduction & the ECG Step 4: Determine PR interval An electrocardiogram is a recording of the electrical activity within the heart that is obtained by placing various electrodes on the skin surface. From this painless, quick and inexpensive test, doctors are able to evaluate a person's heart rate and rhythm and to detect if something is wrong. Premature Atrial Contractions (PACs) Atrial Flutter Normal: 0.04 - 0.12 seconds. (1 - 3 boxes) Interpretation? Option 2 Find a R wave that lands on a bold line. Count the # of large boxes to the next R wave. If the second R wave is 1 large box away the rate is 300, 2 boxes - 150, 3 boxes - 100, 4 boxes - 75, etc. (cont) Ventricular cells can: fire occasionally from 1 or more foci fire continuously from multiple foci fire continuously due to a looping re-entrant circuit PVCs The QRS axis is determined by overlying a circle, in the frontal plane. By convention Step 3: Assess the P waves Ventricular Cell Problems QRS equivocal (R = Q+S) Atrial Cell Problems Atrial Cell Problems ELECTRO-CARDIOGRAM Rate Rhythm Axis Intervals Hypertrophy Infarct Mean of Axis Deviation Ten electrodes are used for a 12-lead ECG. The electrodes usually consist of a conducting gel, embedded in the middle of a self-adhesive pad onto which cables clip. Sometimes the gel also forms the adhesive. They are labeled and placed on the patient's body as follows Arrhythmias can arise from problems in the: Sinus node Atrial cells AV junction Ventricular cells Step 1: Calculate rate. Step 2: Determine regularity. Step 3: Assess the P waves. Step 4: Determine PR interval. Step 5: Determine QRS duration. Option 2 (cont) Memorize the sequence: 300 - 150 - 100 - 75 - 60 - 50 Interpretation? NSR Parameters 9 x 10 = 90 bpm Step 1: Calculate Rate Sinus Bradycardia Sinus Tachycardia Electrocardiograph The SA Node can: fire too slow fire too fast Normal: 0.12 - 0.20 seconds. (3 - 5 boxes) Interpretation? Atrial cells can also: • fire continuously from multiple foci or fire continuously due to multiple micro re-entrant “wavelets” Sinoatrial node AV node Bundle of His Bundle Branches Purkinje fibers Correct Placement of Electrodes The AV junction can: fire continuously due to a looping re-entrant circuit block impulses coming from the SA Node Rate Rhythm Axis Intervals Hypertrophy Infarct The “PQRST” T wave - Ventricular repolarization Approx. 1 box less than 100 = 95 bpm Atrial depolarization + delay in AV junction (AV node/Bundle of His) (delay allows time for the atria to contract before the ventricles contract) Step 1: Calculate Rate SA Node Problems The ECG Paper (cont) EKG leads are attached to the body while the patient lies flat on a bed or table. Leads are attached to each extremity (four total) and to six pre-defined positions on the front of the chest. Sinoatrial node AV node Bundle of His Bundle Branches Purkinje fibers Paroxysmal Supraventricular Tachycardia AV Junctional Blocks Normal Sinus Rhythm (NSR) In some instances, men may require the shaving of a small amount of chest hair to obtain optimal contact between the leads and the skin. Abnormal Signal moves slowly through the ventricles Ventricular Conduction Rhythm Analysis Rate 90-95 bpm Regularity regular P waves normal PR interval 0.12 s QRS duration 0.08 s Interpretation? Normal P waves with 1 P wave for every QRS R wave Step 2: Determine regularity Option 1 Count the # of R waves in a 6 second rhythm strip, then multiply by 10. Reminder: all rhythm strips in the Modules are 6 seconds in length. Interpretation? The leads are attached by small suction cups, Velcro straps, or by small adhesive patches attached loosely to the skin. The test takes about five minutes and is painless. Technique for Taking Electrocardiogram Regular Look at the R-R distances (using a caliper or markings on a pen or paper). Regular (are they equidistant apart)? Occasionally irregular? Regularly irregular? Irregularly irregular? Interpretation? A QRS axis that falls between +90o and +150o is abnormal and called right axis deviation Step 5: QRS duration The QRS axis is determined by overlying a circle, in the frontal plane. By convention Pacemakers of the Heart Atrial Fibrillation Atrial Fibrillation Arrhythmia Formation Teaching Moment The ECG Paper When an impulse originates in a ventricle, conduction through the ventricles will be inefficient and the QRS will be wide and bizarre. We can quickly determine whether the QRS axis is normal by looking at leads I and II. Sinus Tachycardia may be an appropriate response to stress. PVCs Rate Rhythm Axis Intervals Hypertrophy Infarct Etiology: One or more ventricular cells are depolarizing and the impulses are abnormally conducting through the ventricles. THANK YOU FOR YOUR ATTENTION!! The PR Interval Atrial cells

Free Prezi Template

Transcript: The adsorption of contaminant molecules by catalysis The improvement of light absorption The improvement of charge separation and transportation ZnS QDs by precipitation method ( Zinc acetate, Sodium sulphide) ( T= 90º, t= 2h) (NaOH was used as a surfactant) (Low crystalyity) ZnS NPs by hydrothermal method ( Zinc chloride, Thioacetamide) (T=140º, t=5h) ZnS microspheres by hydrothermal method (Zinc chloride, Sodium thiosulfate) (T=180º, t=12h) The strongest material ever Optical Properties Synthesis of pure ZnS Secondary, the use of certain organic acids as additives (Formic acid) , in order to inhibit the growth of moulds, bacteria and yeasts. Graphite : narrow peak (2θ = 26.8º)(d=0.33 nm) ZnO nanorod : high intensity peak (002) (2θ = 34.331º) (JCPDS 00-001-1136) ZnS : sphalerite (111), (200), (220), (311) (JCPDS 00-001-0792) Graphite The mechanical and wear-resistance performance of the coating. 1 Morphology PL : The excessive of rGO can act a center for the recombination of electron-hole pairs instead of providing an electron pathway Solar cell device Synthesis of ZnS-based organic (graphene and polypyrrole) composite The intensity of the absorption peak of MB at 663 nm decreases with the increase of irradiation time D(%) = [(A(MB)0 - A(MB)t)/ A(MB)0] × 100 ZG-0 = 0.27% , ZG-1 = 59%, ZG-2 = 68%, ZG-3 = 79%, ZG-4 = 63% UV-vis absorbtion spectra Na2S + 2H2O 2NaOH + H2S (1) ZnO + H2S ZnS + H2O (2) Hummer's method Research Main Points The rule of graphene 300 times stronger than steel and much harder than diamond! Examples for nanomaterial that already used as a reinforcement in the coating XRD Pure ZnS QDs Publications Nanotechnology solutions hexagonal arrangement of carbon in layer stacked to each other One-pot synthesis Multi-step syntheis one-pot synthesis Multi-step synthesis synthesis of Graphene oxide nanosheets. ( Hummer's method) Graphene nanosheets (GNS) - Titanium dioxide composite Graphene Graphene : (2θ = 25.63º) PPy : amorphous (2θ = 26º) ZnS : Sphalerite ( 111), (220), (311) Insertion for a desired properties ZG-0 ( 0% GO), ZG-1 (0.5% GO), ZG-2 (1% GO), ZG-3 (1.5% GO), ZG-4 (2% GO) Synthesis of ZnS-based inorganic (ZnO-ZnS core-shell) composite Absorption XRD Characterization Morphology Synthesis of pure ZnS ZnO-ZnS core-shell nanostructure By Khaled El Sayed Mustafa The morphology of the core-shell structure is a mixture of round and rectangular shape Uv-vis absorption of ZnO-ZnS core-shell Photocatalytic measurement: Mild steel substrate XRD Characterization Improvement of high-surface area of catalysis (BET) Selective adsorption of the aromatic dye on the catalyst ( π electrons ) qe = ( Ci – Ce )V/m GO Intense and sharp peak ( 2θ = 10.6º ) (001) (d=0.83 nm) rGO very broad ( 2θ = 24.31º ) (002) ( d= 0.36 nm) very weak peak ( 2θ = 42.53º ) (100) ( d= 0.21 nm) ZG-0 Zinc blend ( 2θ = 28.609º, 33.153º, 47.591º, 56.473º, 59.227º, 69.583º, 76.894º ) (1 1 1), (2 0 0), (2 2 0), (3 1 1), (2 2 2), (4 0 0) and (3 3 1) ZG-0 Wurtzite ( 2θ = 27.081 ) Graphene : ideal ohmic ZnS nanoparticles : two fold light response, resistance of 3.23 × 10 23 Ωcm2 ZP : resistance of 2.81 × 10 23 Ωcm2 GZP : 1.35 × 10 23 Ω cm2 Hexagonal ZnO ZnS (111) Experimental XRD Characterization One-pot synthesis of ZnO-ZnS core-shell nanostructure Electrodeposition of rGO by Mg(NO3)2 Electrodeposition of ZnO nanorod arrays (ZnCl2, KOH, 1mM) anealing on the high purify Argon gas Sulfidation process ( thioacetamide) Photocatalytic Silo Corrosion failure The Anticorrosion Effect of Ni- RGO -TiO2 Nanocomposite Coating on Mild Steel in Neutral Environment The ZnS shell with an estimated tickness of 18 nm is observed Cathodic Protection synthesis of graphene nanosheets ( microwave assisted t=5min, 15 micro liter Hydrazine) PPy nanotube ( Pyrrol monomer, Fecl3, Methylene orange as a template) A red shift and increase in absorption edge of the UV-Vis spectra of ZnS were observed in the presence of graphene. The PL emission of ZnS-graphene decreased compared to the pure ZnS due to the presence of graphene the PL emission of the ZnO-ZnS core-shell nanostructure decreased due to the presense of ZnS shell and formation of type-II band alignment structure in the hetero-interface which is beneficial for solar cell devices. The presence of rGO in ZnS-rGO composite gives significant improvement in the degradation of methylene blue under visible light irradiation compared to pure ZnS, due to the increased adsorption of the dye, decrease in the band gap and stepwise structure of the energy levels in the composite. The presence of graphene and PPy in the GZP turnary composite lead to higher photocurrent response due to the creation of an interfacial separation between the graphene and the PPy by ZnS nanoparticles, which act as a bridge, and due to enhanced charge transport by graphene. ZnS microsphere-rGO composite Corrosion Inhibitors Crystal structure Bridging effect Charge separation Research Assistant Environmental Modifications Pt foil a counter

Electro Cardiogram

Transcript: Timeline Rami Kenawi / Electrocardiogram 1982 The First Electrocardiogram With physicians starting to understand how electricity flows through the body, Dr. Augustus D Waller discovered the first electrocardiogram. In 1877, Augustus Waller traced the human heart by using a mercury capillary electrometer and a toy train at St. Mary’s Hospital, London. The tracing revealed only 2 deflections which he labeled V1 and V2 to indicate ventricular events. (Litfl, 2022) 1901 String Galvanometer In 1901, Einthoven invents the Saitengalvanometer (string galvanometer) using a fine quartz string coated in silver (rather than the wire coated string of Deprez and d’Arsonval). He presented cases of atrial and ventricular hypertrophy; ventricular bigeminy, ventricular premature beats (Litfl, 2022) 1931 Precordial Lead In 1931, Charles C. Wolferth and Francis Clark Wood introduce the precordial lead (lead IV) in clinical diagnostic cardiology. This allowed the electrocardiogram to become more sensitive to detect electric forces eminating from the heart. (Litfl, 2022) 1949 Electrocardiography In 1949, Norman "Jeff" Holter produced the first ECG radio transmitter with batteries weighed more than 38 kg. The first broadcast of a radioelectrocardiogram was then relayed in history. (Litfl, 2022) 1978 Implantable Electrocardiogram In 1978, Alois Langer, Marlin Heilman, Morton Mower and Mieczyslaw Mirowski patented a “Circuit for monitoring a heart and for effecting cardioversion of a needy heart.” The start of the development of the implantable cardiac defibrillator. [A chronically implanted system for automatic defibrillation in active conscious dogs. This became an experimental model for treatment of sudden death from ventricular fibrillation.(Litfl, 2022) 2018 Apple Smart Watch In 2018, Apple begings to improve their heart pulse detector by studying whether a wearable technology can identify irregular heart rhythms suggestive of atrial fibrillation. (Litfl, 2022) 2021 Kardia In 2021, Kardia a tech company, develops a credit card for measuring heart ryhtm and data while creating a new mobile device as well. Users would be able to detect the most common arrhythmias. (Kardia, 2021) Citations Cadogan, M. (2022, July 27). History of the electrocardiogram. Life in the Fast Lane • LITFL. Retrieved September 19, 2022, from https://litfl.com/history-of-the-electrocardiogram/ EKG anywhere, anytime. Kardia. (n.d.). Retrieved September 19, 2022, from https://www.kardia.com/

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