zilongwang/ReadingBank huggingface dataset:
workplace practices and control procedures consistent with provisions of State and Territory hazardous substances legislation must be in operation. Disposal The notified polymer should be disposed of to landfill or by re-refining or authorised incineration. Emergency procedures Spills or accidental release of the notified polymer should be handled by physical containment, collection and subsequent safe disposal. Regulatory Obligations Secondary Notification This risk assessment is based on the information available at the time of notification. The Director may call for the reassessment of the chemical under secondary notification provisions based on changes in certain circumstances. Under Section 64 of the Industrial Chemicals (Notification and Assessment) Act (1989) the notifier, as well as any other importer or manufacturer of the notified chemical, have post-assessment regulatory obligations to notify NICNAS when any of these circumstances change. These obligations apply even when the notified chemical is listed on the Australian Inventory of Chemical Substances (AICS). Therefore, the Director of NICNAS must be notified in writing within 28 days by the notifier, other importer or manufacturer: (1) Under Section 64(2) of the Act; if the function or use of the chemical has changed from a viscosity modifier in automatic transmission fluids for vehicles (lubricant additive) at < 2%, or is likely to change significantly; the amount of chemical being introduced has increased from 3 tonnes per year, or is likely to increase, significantly; if the chemical has begun to be manufactured in Australia; additional information has become available to the person as to an adverse effect of the chemical on occupational health and safety, public health, or the environment. The Director will then decide whether a reassessment (i.e. a secondary notification and assessment) is required. No additional secondary notification conditions are stipulated. Material Safety Data Sheet The MSDS of the products containing the notified polymer provided by the notifier were reviewed by NICNAS. The accuracy of the information on the MSDS remains the responsibility of the applicant. Extension Application The extension applicant has provided an MSDS for a product containing the notified polymer. The accuracy of the information on the MSDS remains the responsibility of the extension applicant.
Harlan Laboratories (2010b) Flash Point 125oC at 103 kPa EC Directive 92/69/EEC A.9 Flash Point. Springborn Smithers Laboratories (2010b) Autoignition Temperature 280oC EC Directive 92/69/EEC A.15 Auto-Ignition Temperature (Liquids and Gases). Springborn Smithers Laboratories (2010c) Explosive Properties Not explosive EC Directive 92/69/EEC A.14 Explosive Properties. Remarks Mechanical explosivity: No reaction was observed during all six trials of the mechanical sensitivity test. Thermal explosivity: No reaction was observed during the thermal sensitivity test with 6.0- or 2.0-mm diameter orifice plates. Springborn Smithers Laboratories (2010d) pH 5.59 ASTM E70-07 Standard Test Method for pH of aqueous solutions with the glass electrode Toxikon Corporation (2010d)
3. PLC CRITERIA JUSTIFICATION Criterion Criterion met (yes/no/not applicable) Molecular Weight Requirements Yes Functional Group Equivalent Weight (FGEW) Requirements Yes Low Charge Density Yes Approved Elements Only Yes Stable Under Conditions of Use Yes Not Water Absorbing Yes Not a Hazard Substance or Dangerous Good Yes The notified polymer meets the PLC criteria. 4. PHYSICAL AND CHEMICAL PROPERTIES Appearance at 20°C and 101.3 kPa Clear colourless gel-like material Glass Transition Temp -127.2 °C (initial glass transition temperature from Differential Scanning Calorimetry heating curve) Density 960 kg/m3 at 25°C Water Solubility Negligible based on the polymer containing almost all hydrophobic groups. Dissociation Constant Not applicable. Reactivity Expected to be stable under ambient conditions but contains functional groups which may undergo hydrolysis under extreme pH and temperature conditions. Degradation Products Under normal conditions of use in hydraulic system equipment (such as pumps, servovalves, actuators, etc) the notified polymer may degrade to simpler organic molecules over time. 5. INTRODUCTION AND USE INFORMATION (100%) 5 Year 1 2 3 4 5 Tonnes < 4 < 4 < 4 < 4 < 4 Extension Application Year 1 2 3 4 5 Tonnes < 2 < 2 < 2 < 2 < 4 Mode of Introduction The notified polymer will be imported as a component of aviation hydraulic fluids (finished products) at concentrations of <15%. It will be imported into in sealed steel containers of the following sizes: 0.95L, 3.8L, 18.9L, and 208.2L. It will be transported by road and/or rail to a storage warehouse. Reformulation/manufacture processes No manufacture or reformulation will occur in . Use The notified polymer will be used for industrial purposes only as a viscosity index improver in aviation
TABLE OF CONTENTS Full Public Report 4 1. APPLICANT AND NOTIFICATION DETAILS 4 2. IDENTITY OF CHEMICAL 4 3. 5 4. PHYSICAL AND CHEMICAL PROPERTIES 5 5. INTRODUCTION AND USE INFORMATION 5 6. HUMAN HEALTH IMPLICATIONS 7 7. ENVIRONMENTAL IMPLICATIONS 9 8. CONCLUSIONS AND REGULATORY OBLIGATIONS 10 Appendix A: Physical and Chemical Properties 13 Appendix B: Toxicological Investigations 15 Appendix C: Environmental Fate and Ecotoxicological Investigations 24 Bibliography 29
Appendix B: Toxicological Investigations Acute toxicity – oral Notified chemical OECD TG 423 Acute Oral Toxicity – Acute Toxic Class Method. Species/Strain Rat/Albino Crl : CD (SD) Female Vehicle Corn oil Remarks - Method No significant protocol deviations. GLP compliant. Group Number and Sex of Animals Dose mg/kg bw Mortality I 3 Female 2000 0 II 3 Female 2000 0 LD50 > 2000 mg/kg bw Signs of Toxicity There were no deaths. Clinical findings consisted of abnormal excretion (feces smaller than normal and/or decreased defecation). No other abnormal physical signs were noted during the study. Effects in Organs There were no remarkable necropsy findings. Remarks - Results Body weight gains were as expected. The notified chemical is of low toxicity via the oral route. WIL (2008a) Acute toxicity – dermal Notified chemical OECD TG 402 Acute Dermal Toxicity – Limit Test. Species/Strain Rat/Sprague-Dawley CD (Crl : CD (SD) IGS BR) Vehicle Arachis oil was used to moisten the test substance. Type of dressing Semi-occlusive. Remarks - Method No significant protocol deviations. GLP compliant. Group Number and Sex of Animals Dose mg/kg bw Mortality I 5 per sex 2000 0 LD50 > 2000 mg/kg bw Signs of Toxicity - Local There were no test substance-related dermal reactions. Signs of Toxicity - Systemic There were no deaths or test-substance related clinical signs. There were no signs of systemic toxicity. Effects in Organs No abnormalities were noted at necroscopy Remarks - Results Body weight gains were as expected. The notified chemical is of low toxicity via the dermal route. Safepharm (2008a)
TABLE OF CONTENTS Full Public Report 3 SUMMARY 3 CONCLUSIONS AND REGULATORY OBLIGATIONS 3 Hazard classification 3 Human health risk assessment 3 Environmental risk assessment 3 Recommendations 3 Regulatory Obligations 4 1. APPLICANT AND NOTIFICATION DETAILS 5 2. IDENTITY OF CHEMICAL 5 3. 5 4. PHYSICAL AND CHEMICAL PROPERTIES 6 5. INTRODUCTION AND USE INFORMATION 6 6. HUMAN HEALTH IMPLICATIONS 8 6.1 Exposure assessment 8 6.1.1 Occupational exposure 8 6.1.2. Public exposure 8 6.2. Human health effects assessment 9 6.3. Human health risk characterisation 10 6.3.1. Occupational health and safety 10 6.3.2. Public health 10 7. ENVIRONMENTAL IMPLICATIONS 10 7.1. Environmental Exposure & Fate Assessment 10 7.1.1 Environmental Exposure 10 7.1.2 Environmental fate 11 7.1.3 Predicted Environmental Concentration (PEC) 11 7.2. Environmental effects assessment 11 7.2.1 Predicted No-Effect Concentration 11 7.3. Environmental risk assessment 11 Appendix A: Physical and Chemical Properties 12 Appendix B: Toxicological Investigations 14 B.1. Acute toxicity – oral 14 B.2. Acute toxicity – dermal 14 B.3. Irritation – skin 15 B.4. Irritation – eye 15 B.5. Skin sensitisation – mouse local lymph node assay (LLNA) 16 B.6. Repeat dose toxicity 16 B.7. Genotoxicity – bacteria 18 B.8. Genotoxicity – in vitro 19 B.9. Genotoxicity – in vitro 20 B.10. Developmental toxicity 21 Appendix C: Environmental Fate and Ecotoxicological Investigations 23 C.1. Environmental Fate 23 C.1.1. Ready biodegradability 23 C.1.2. Bioaccumulation 24 C.2. Ecotoxicological Investigations 24 C.2.1. Acute toxicity to fish 24 C.2.2. Acute toxicity to aquatic invertebrates 25 C.2.3. Algal growth inhibition test 25 C.2.4. Inhibition of microbial activity 26 Bibliography 28
Answer Part (B) When y = 0 x = 0, x = -1 and x = 1 The stationary (turning) points occur when The maximum width of each loop of the curve is 1. The total area A enclosed by the two loops is
File No: EX/184 (PLC/1096) NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME (NICNAS) POLYMER OF LOW CONCERN PUBLIC REPORT Polymer in Infineum V351 This Assessment has been compiled in accordance with the provisions of the Industrial Chemicals (Notification and Assessment) Act 1989 (Cwlth) (the Act) and Regulations. The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) is administered by the Australian Government Department of Health and Ageing, and conducts the risk assessment for public health and occupational health and safety. The assessment of environmental risk is conducted by the Australian Government Department of Sustainability, Environment, Water, Population and Communities. For the purposes of subsection 78(1) of the Act, this Public Report may be inspected at our NICNAS office by appointment only at Level 7, , Surry Hills NSW 2010. This Public Report is also available for viewing and downloading from the NICNAS website or available on request, free of charge, by contacting NICNAS. For requests and enquiries please contact the NICNAS Administration Coordinator at: Street Address: Level 7, , SURRY HILLS NSW 2010, . Postal Address: GPO NSW 2001, . TEL: + 61 2 8577 8800 FAX: + 61 2 8577 8888 Website: www.nicnas.gov.au Director NICNAS Table of Contents SUMMARY 2 CONCLUSIONS AND REGULATORY 2 ASSESSMENT DETAILS 3 1. APPLICANT AND NOTIFICATION DETAILS 3 2. IDENTITY OF POLYMER 4 3. PLC CRITERIA JUSTIFICATION 4 4. PHYSICAL AND CHEMICAL PROPERTIES 4 5. INTRODUCTION AND USE INFORMATION 4 6. HUMAN HEALTH RISK ASSESSMENT 5 7. ENVIRONMENTAL RISK ASSESSMENT 5
Exempt Information (Section 75 of the Act) Data items and details claimed exempt from publication: chemical name, other names, CAS number, molecular and structural formulae, molecular weight, reactive functional groups polymer constituents, residual monomers/impurities, use details, and import volume. IDENTITY OF POLYMER Marketing Name(s) Infineum V351 (containing the notified polymer at > 50%) Extension Application Helix Ultra Extra 5W-30 (containing the notified polymer at < 1%) Molecular Weight Number Average Molecular Weight (Mn) is > 10,000 Da 3. PLC CRITERIA JUSTIFICATION Criterion Criterion met Molecular Weight Requirements Yes Functional Group Equivalent Weight (FGEW) Requirements Yes Low Charge Density Yes Approved Elements Only Yes Stable Under Conditions of Use Yes Not Water Absorbing Yes Not a Hazard Substance or Dangerous Good Yes The notified polymer meets the PLC criteria. PHYSICAL AND CHEMICAL PROPERTIES Appearance at 20 °C and 101.3 kPa Viscous liquid (product) Not determined Density 920 kg/m3 Water Solubility 0.0086 g/L at 20 °C, pH 2-9 (OECD TG 120, loading rate 10 g polymer/L) Particle Size Imported in solution Reactivity Stable under normal environmental conditions Degradation Products None under normal conditions of use INTRODUCTION AND USE INFORMATION Maximum Introduction Volume of Notified Chemical (100%) Over Next 5 Years Original Application Year 1 2 3 4 5 Tonnes < 1 1-10 1-10 1-10 1-10 Extension Application Year 1 2 3 4 5 Tonnes < 1 1-5 1-5 1-5 1-5
Appendix B: Toxicological Investigations Acute toxicity – oral Notified polymer (approximately 19 wt% aqueous solution) OECD TG 425 Acute Oral Toxicity: Up-and-Down Procedure Species/Strain Rat/Crl:CD(SD) Vehicle None – administered as supplied Remarks - Method No significant protocol deviations. Group Number and Sex of Animals Dose of test substance mg/kg bw Mortality 1 1F 175 0/1 2 1F 550 0/1 3 1F 1,750 0/1 4 1F 5,000 0/1 5 1F 5,000 0/1 6 1F 5,000 0/1 LD50 >5,000 mg test substance/kg bw (> 1,000 mg notified polymer/kg bw) Signs of Toxicity None Effects in Organs None The test substance containing the notified polymer at approximately 19 wt% concentration is of low toxicity via the oral route. DuPont (2008a) Acute toxicity – inhalation Notified polymer (approximately at 20 % concentration) Similar to OECD TG 403 Acute Inhalation Toxicity Species/Strain Rat/Crl:CD(SD) Vehicle None – administered as supplied Method of Exposure Nose-only exposure Exposure Period 4 hours Physical Form Liquid aerosol Particle Size MMAD±GSD = 4.0±3.2 and 3.8±3.9 µm for groups 2 and 3, respectively. Remarks - Method A control group was exposed to air. Two control animals were sacrificed 1 day post-exposure with the remaining two sacrificed 14 days The dosed groups were maintained until death or until 14 days post-exposure. All surviving rats were sacrificed on day 14 by carbon dioxide asphyxiation. Microscopic examination of the lungs was conducted on the control and Group 3 animals. Group Number and Sex of Animals Concentration mg/m3 Mortality Total aerosol Dry aerosol1 1 4 M 0 0 0/4 2 5 M 2,200* 1,200 0/5 3 10 M 4,700** 1,700 8/10 *MMAD±GSD: 4.0 ± 3.2m (78% particles by mass <
Topics and activities checklist Topics Activities Group member in charge Comments 1 2 3 Explain the concept of a top-down design of a digital circuit. a) Explain the logic gates AND, NAND, OR, NOR, XOR, NXOR, NOT) a) Analyze a logic circuit built using logic gates. Analysis concept map. a), g) Use WolframAlpha to obtain a circuit’s truth table. a)b), h) Use the HADES JAVA-based platform simulate. c) Simulate a digital circuit in Proteus-ISIS. d) Install the ispLEVER Classic and follow its design flow to implement an example project into a sPLD. e), f) Explain the basics of a SPLD GAL22V10. i), Search books and the Internet to learn about VHDL language. k) Explain the VDHL-based design flow of a modern digital circuit. k) Simulate projects in ModelSim or ActiveHDL p) Structural versus behavioural design styles in VHDL k) Relate the following concepts for designing a logic circuit: truth table, Boolean algebra and logic functions, minimisation, SoP (sum of products) and PoS (product of sums), canonical algebraic equations, minterms and maxterms. Design concept map. , Simplify or minimize logic function using software like Minilog.exe. Find the datasheets of SSI and MSI chips. , Explain the concepts of flat and hierarchical designs using components and their instantiation in VHDL language. Design and use standard blocks and apply combinational circuits. , , Produce a concept map (or a mind map) to explain a topic on the subject. List advantages of using VHDL k) Organise a plan to work in cooperative group for solving the exercises. Sec. 1.12 Analyse your own individual and group study time. Sec. 1.12 Produce a quality written solution using a word processor template: spelling and grammar chapter enumeration page headers and footers Sec. 1.11
Comments?: _________________________________________________________________
Q.8. Body Mass Indices (BMI) for English Premier League (EPL) football players are approximately normally distributed with a mean of 23.00 and standard deviation of 1.70. p.8.a. What is the probability a randomly selected EPL player has a BMI above 24.5? p.8.b. Between what 2 BMI levels do the middle 50% of all EPL players fall? p.8.c. What is the sampling distribution of sample means of sample size = 16 from this population? Give the distribution symbolically and draw a graph of it.
Appendix A: Physical and Chemical Properties Melting Point/Freezing Point < -20 oC OECD TG 102 Melting Point/Melting Range. Remarks Differential scanning calorimetry was used. Innospec Limited (2011) Boiling Point 208 oC at 101.3 kPa OECD TG 103 Boiling Point. Remarks Differential scanning calorimetry was used. Innospec Limited (2011) Density 951 kg/m3 at 20 oC 950 kg/m3 at 15 oC OECD TG 109 Density of Liquids and Solids. Remarks Pycnometer cup method was used. Innospec Limited (2011) Vapour Pressure 0.1 kPa at 20 oC EC Council Regulation No 440/2008 A.4 Vapour Pressure. Remarks Static method was used. Chilworth Technology Limited at Hampshire, UK conducted the test. Innospec Limited (2011) Water Solubility < 0.017 g/L at 20 oC OECD TG 105 Water Solubility. Remarks Column Elution Method. Innospec Limited (2011) Flash Point 98 ± 1 oC EC Council Regulation No 440/2008 A.9 Flash Point. Remarks Pensky-Martens closed cup flash point apparatus was used. Innospec Limited (2011) Autoignition Temperature 343.5 oC (including barometric pressure correction factor) ASTM E659-78 Remarks Chilworth Technology Limited at Hampshire, UK conducted the test. Innospec Limited (2011) Dynamic viscosity 4.4 × 108 mPa.s at 20 oC 6.19 × 107 mPa.s at 40 oC OECD TG 114 Viscosity of Liquids. Remarks A cone and plate rotational rheometer was used. Innospec Limited (2011)
The notified polymer is slightly irritating to the eye. Eurofins (2010g) Irritation – eye Notified polymer – variation 2 OECD TG 405 Acute Eye Irritation/Corrosion. Species/Strain Rabbit/New Zealand White Number of Animals 3 males Observation Period 4 days Remarks - Method Prior to instillation of the test substance, two to three drops of ocular anaesthetic (tetracaine hydrochloride 0.5%) were placed into both eyes of each animal. Lesion Mean Score* Animal No. Maximum Value Maximum Duration of Any Effect Maximum Value at End of Observation Period 1 2 3 Conjunctiva: redness 1 1.7 1 2 < 4 days 0 Conjunctiva: chemosis 0.3 0.7 0.3 1 < 72 hours 0 Conjunctiva: discharge 1 1 0.7 3 < 72 hours 0 Corneal opacity 0 0 0 1 < 24 hours 0 Iridial inflammation 0 0.7 0.3 1 < 72 hours 0 *Calculated on the basis of the scores at 24, 48, and 72 hours for EACH animal. Remarks - Results A single application of the test material to the non-irrigated eye of three rabbits produced iridial inflammation and moderate conjunctival irritation in all animals and corneal opacity in two animals. Two treated eyes appeared normal at the 72 hour observation with the remaining treated eye appearing normal at the 4 day observation. There were no deaths or test substance-related clinical signs or remarkable body weight changes during the study period. The notified polymer is slightly irritating to the eye. Eurofins (2010h) Skin sensitisation – mouse local lymph node assay (LLNA) Notified polymer – variation 1 OECD TG 429 Skin Sensitisation: Local Lymph Node Assay (2002 version) Species/Strain Mouse/CBA/JHsd (female) Vehicle N,N-dimethylformamide Remarks - Method An irritation screening study was not conducted and 100% was selected as the highest concentration based on the lack of severe irritant effects observed with the test substance. The main study was conducted using 5 mice/group at 0, 5, 25, 50 or 100% concentration. A concurrent positive control was conducted using 25% hexylcinnamaldehyde (HCA) in the vehicle (5 mice/group).
Clear the Selected Features, then repeat this procedure for selecting the Catchment features that lie within the San Marcos basin. Remove the large coverages of Flowline and Catchment that you started with and display only the Flowlines and Catchments within the San Marcos Basin. This process isn’t quite so clever as for the land cover distribution – you have to recolor the newly added Flowlines and Catchments to make them blue and green respectively. This map looks a little bit like spaghetti, so let’s recolor the Flowlines according to the Mean Annual Flow (Q0001C attribute). Right click on the Flowline feature class and select Properties/Symbology. Use Graduated Symbols with Value Q0001C and click on Template to change the base color to blue. Turn on the display for the Subwatershed feature class. Now you’ve got a much more interesting map with the main river, called upstream the Blanco River and then downstream the San Marcos River. The tributary on the east side of the basin is Plum Creek. This is all laid out over a subdivision of the San Marcos basin by the HUC10 Watersheds. If you open up the Catchment Attribute Table and right click on the AreaSqKm attribute, you can determine the statistics of the Catchment areas. You can similarly summarize the attributes of Flowline feature class, such as the LengthKm attribute. Use the Basemap to find the town of Wimberley near the upper end of the basin You can use the Select tool to select a flowline, such as the one labelled with COMID = 1630223 (be sure to expand the field so you can see all the numbers in it) as shown in the diagram. If you similarly select the Catchment in this area, you’ll see
Use the Locate button in the Map view to locate the town of Wimberley, Texas Click on the reach of the Blanco River just downstream of Wimberley: And you’ll see that this reach has a COMID = 1630223. We’ll use this later to get information from the National Water Model. If you click on the catchment within which this flowline is located, you’ll see that it has a FeatureID = 1630223. It is this one to one relationship between the COMID of the Flowline and the FeatureID of the Catchment that connects the river and stream segments with their surrounding local drainage areas in the National Water Model. Use Zoom to Layer for the Basin feature class to get back the original extent of our map. Turn off the Locate panel to eliminate the symbolization of Wimberley. Explore the map and identify where the Blanco River, San Marcos River and Plum Creek are located in the basin. Now let’s create a map and do some summarization of watershed attributes. We’ll need to create a new Layout with the New Layout button in the Insert tab. Add your Map Frame to the Layout (make sure you can see the whole basin), add a Text Rectangle, Add Plum Creek, Blanco River, and San Marcos River Text Rectangles to the Layout (click on the tool and then draw a box on the map and type in the river name. , then right-click on each Text Rectangle in the Contents pane and select Add Leader. Move the Text Rectangles around and select Add Leader again to change the location of the pointer until your map looks something like this: Save your map document as Ex2_project_flow.aprx to preserve your layout. Open the attribute table for Flowline. Note that there is a field LENGTHKM that was obtained from the original data. Use this to compute the average length of flowlines. This is easiest done in Excel. Right click on Flowline and select Data Export Table.
student to contact the Campus Advice Zone as soon as possible and inform them of the issue. Ensure all details are written on the examination session report. How do I deal with a student suspected of academic misconduct Guidance provided to invigilators on how to deal with suspected academic misconduct: If an invigilator suspects a candidate of academic misconduct in an examination, the following steps should be taken: Endorse the front cover of the examination answer book and at the point inside the book at which the alleged academic misconduct is detected. “Suspected academic misconduct at (time) and removed (item)” Give the candidate an oral warning (appendix D in Invigilators Handbook), in the presence of another invigilator. This will be done in an appropriate manner to ensure minimal disruption to other candidates. Advise the candidate to continue with the examination and ensure that the candidate has the opportunity to make up any lost time at the end of the examination. An invigilator or staff member who suspects that academic misconduct has occurred during an examination must write a detailed account on the examination session report. Once the examination has finished and the paperwork has been returned to the office, ensure that any evidence is copied and attached the examination session report. A copy of this must be returned to ECG and the original copy given to the Campus Senior Registry Officer. Examination How do I deal with IT examinations and technology failures? Contact the IT helpdesk and ask for someone to attend the venue as soon as possible. If there is another lab or laptop available make the appropriate swaps. If the examination has started late because of these issues the time will be amended accordingly. What if there is missing paperwork? ECG will provide enough spare paperwork to supplement anything missing. Where possible use reserve invigilators to deliver any paperwork to a venue if required.
MATHEMATICS EXTENSION 2 / 4 UNIT MATHEMATICS TOPIC 2: COMPLEX NUMBERS EXERCISE 2_113 HSC 2013 Q11a Consider the two complex variables and Find the following The complex conjugates of z1 and z2 The magnitudes (moduli) of z1 and z2 The arguments of z1 and z2 The polar and exponential forms of z1 and z2 magnitude and argument of magnitude and argument of and in its simplest form ANSWERS
Once you’ve executed this query, you’ll see that 32 HUC12 subwatersheds are selected, and if you hit the “Selected” button at the bottom of the Table, you’ll see the selected records, and also their highlighted images in the map. If you hit the Zoom to Select button in the table, you can see the selected features up close. You can use the map navigation tools in the ArcMap toolbar to move you map around and resize it. Pretty cool!! (2) Make sure that Arc Catalog is closed or the next steps may not work. In ArcMap, Right Click on the watersheds layer (wbdhu12_a_tx) and select Data/Export Data to produce a new theme. If you get a message saying you can’t do this, it means that you haven’t shut down Arc Catalog before trying the data export. Close Arc Catalog and repeat the export steps if this happens Browse inside your geodatabase to the Basemap Feature dataset (you’ll have to change the Save as Type to File and Personal Geodatabase feature classes first), name this new feature class as Watershed and save it in the geodatabase as a File and Personal Geodatabase feature class. You will be prompted to whether add this theme to the Map, click Yes. In ArcMap, Use Selection/Clear Selected Features to clear the selection you just made. And then Zoom to Layer to focus in on your selected Watersheds. You can click off the little check mark by the nhdflowlines layer so that you just see the watersheds displayed.
LivePerson, a cloud-based messaging company that provides customer service messaging software to companies and which surveyed 2,000 U.S.-based consumers online in January 2017. The table below presents the results of the survey. I’m concerned Others should be concerned for their jobs for my job Yes No Yes 546 19 No 1365 187 6. What percentage of survey participants are concerned for their job? 97% b) 29% c) 27% d) 90% e) 64% 7. What percentage of survey participants think others should be concerned for their jobs? 97% b) 29% c) 27% d) 90% e) 64% 8. What percentage of survey participants think their own jobs are safe, but others should be worried? 97% b) 29% c) 27% d) 90% e) 64% 9. We should use McNemar’s Test to analyze this data because we are comparing proportion of yes answers: on two questions, asked of two separate groups of people. on one question, asked of two separate groups of people. on two questions, asked of the same group of people. on two questions, asked of related groups of people. None of the above 10. The alternative hypothesis states that there is a difference in the proportion of Americans: who are concerned about their jobs, and those who think others should be concerned. who are not concerned about their own jobs but think others should be and those who are concerned about their own jobs but think others should not be. who are concerned about their own jobs and those who are not. who think others should be concerned about their jobs and those who do not think so. all of the above 11. Compute the Test Statistic for McNemar’s Test. 13.25 22.17 29.90 36.18 9.64 12. The p-value for this test would be: a) close to 0 b) close to 1 c) close to 0.50 d) close to 0.05 e) close to 0.25 13. Are there any problems with the assumptions necessary for McNemar’s Test? We don’t need to make any assumptions for this test. All of the assumptions for this test seem to be satisfied. We are not sure if the sample is representative of the population of interest. Some of the cells in the table have less than thirty responses. The answers in the population do not appear to follow a Normal distribution.
Contribution to the gene pool of the next generation Genetic variability Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities? By identifying the bones as being homologous structures By the principle of convergent evolution By proposing that humans, bats, and dolphins share a common ancestor A and C only A, B, and C Which of the following is probably the best explanation for the fact that Antarctic penguins cannot fly, although there is evidence that millions of years ago their ancestors could do so? Penguins live on land and feed in the water; therefore they have no need to fly. The Antarctic home of penguins is flat and barren; therefore there is no place to fly. Ancestral penguins without large wings were better able to swim and feed in the water; therefore they passed their genes for shorter wings structure onto their offspring. Ancestral penguins did not use their wings for long periods of time; therefore today’s penguins have only tiny, nonfunctional wings. The cold and wind of Antarctica make flight impossible; therefore penguins that live there have lost the ability to fly. A biologist studies a population of squirrels for 15 years. During this time, the population always remains between 30 – 45 squirrels. His data shows that more than ½ of the squirrels born do not survive to reproduce, due to competition for food and predation. Then, in a single generation, 90% of the squirrels born live to reproduce, and the population increases to 80. Which inference(s) about this population might be true? The amount of available food may have increased. The number of predators may have decreased. The squirrels of subsequent generations should show greater levels of genetic variation than previous generations, because squirrels that would not have survived in the past will now survive. A and B only A, B, and C Microevolution, or evolution at its smallest scale, occurs when an individual's traits change in response to environmental factors. a community of organisms changes due to the extinction of several dominant species. a new species arises from an existing species. a population's allele frequencies change over a span of generations. Allopatric speciation occurs when: one population of the same species is separated
The result is a DEM just over the buffered area. At this point you have extracted all the data you need locally and are ready to begin Hydrologic Terrain Analysis. To turn in. The number of columns and rows, and grid cell size in the Logan DEM. The minimum and maximum elevation values in the Logan DEM. Hydrologic Terrain Analysis This activity will guide you through the initial hydrologic terrain analysis steps of Fill Pits, calculate Flow Direction, and calculate Flow Accumulation (steps 1 to 3). The resulting flow accumulation raster then allows you to identify the contributing area at each grid cell in the domain, a very useful quantity fundamental to much hydrologic analysis. Next an outlet point will be used to define a watershed as all points upstream of the outlet (step 4). Focusing on this watershed streams will be defined using a flow accumulation threshold within this watershed (step 5). Hydrology functions will be used to define separate links (stream segments) and the catchments that drain to them (steps 6 and 7). Next the streams will be converted into a vector representation (step 8) and more Hydrology toolbox functionality used to evaluate stream order (step 9) and the subwatersheds draining directly to each of the eight stream gauges in the example dataset (step 10). The result is quite a comprehensive set of information about the hydrology of this watershed, all derived from the DEM. Fill This function fills the sinks in a grid. If cells with higher elevation surround a cell, the water is trapped in that cell and cannot flow. The Fill function modifies the elevation value to eliminate these problems. Select Spatial Analyst Tools Hydrology Fill. Set the input surface raster as dem and output surface raster as fel in Logan.gdb. Press OK. Upon successful completion of the process, the “fil” layer is added to the map. Let's examine the impact of Fill on the DEM. Select Spatial Analyst Tools Map Algebra Raster Calculator and evaluate fil - dem. Select Spatial Analyst Tools Surface Contour. Set the inputs as follows to determine 20 m contours of the original DEM, dem.
Using our Custom Flow Direction tool with the UKL DEM Now that we have reprojected the DEM for our study area, let’s use the Flow Direction tool that we created earlier, and modified to use a TIF file as input. Make sure that the Elevation Processing (or flow direction) tool is loaded in the ArcToolBox. If it does not appear, right click on the white area of the toolbox, select ‘add toolbox’ and search for the tbx file. Select the “FlowDirection from Tiff” tool to read the UKLDEM_albers DEM and create layers for slope, aspect, and flow direction. You should create the output layers in the same folder as your exercise 3. Press OK, and wait a few minutes for the tool to process the entire DEM file. If successful, you should see a window like that to the right, after all four model components have run. Now we will have four more layers in our Table of Contents (TOC), and we will have some interesting looking graphics. For example, the ‘UKL_Drop’ layer (and Slope layer) shows the areas having steepest
Description of the Selwyn Aquifer The physical and flow properties of the hydrogeology of the Selwyn aquifer are contained in a data set developed to support Modflow groundwater modeling of the aquifer, compiled by Julian Weir and colleagues at Aqualinc. Go to the dataset you downloaded for this exercise and add the Model_Grid shape file to your map display. Turn off the Wells feature class but leave the SelectWell feature displayed. Now, let’s get a geology map to add to this display. Select Add Data from ArcGIS Online And search for Geological Map of New Zealand You’ll see that a map becomes available produced by the project QMAP of the Crown Research Institute: Geological and Nuclear Sciences (GNS) If you add this map to your display, you’ll see a coloured image of the geology of this region. The purple areas are volcanic rocks of Banks Peninsula (Lyttleton Harbour and Akaroa Harbour are flooded calderas of ancient volcanos). The white areas are regions where river gravel depositions dominate the surface geology – in the case of the Selwyn aquifer, these are the Waimakariri River to the north, the Rakaia River to the south and the Selwyn River in the center of the model grid. A three-dimensional view of the Selwyn groundwater system is shown below. Three-Dimensional Model of the Selwyn Groundwater System Source of Image: Julian Weir, Aqualinc And if you zoom in to Well L36/2175, and use the Identify tool to query the Model_Grid cell in which this well is located, you’ll see parameters I, J, K, which refer to the row, column and layer indices of the Modflow model. In the display shown below, the “Top” elevation of 67.5 meters refers to the ground
Getting Data from ArcGIS.com Open ArcMap 10 and create a clear map display. Select Add Data from ArcGIS Online Type San Marcos in the Search box and hit return. You’ll see a couple of data sets presented to you as shown below. Select SanMarcosNetwork and Add it to your map When you add the data to your ArcMap display, you’ll see it appear as below Right click on the Basin feature class and select Zoom to Layer. Add a Basemap to provide some reference information, use the Topographic basemap for this purpose. And you’ll produce a nice map display of the San Marcos basin with some background information for reference. Pretty cool! Save your ArcMap file as Ex5.mxd. Stream Network If you right click on the NHDFlowline feature class and go to Layer Properties/Source you’ll see that the Feature Type is Simple Edge which means that this is a network feature class. If you turn on the Hydrography_Net_Junctions and NHDFlowline feature classes and turn off all the other layers, you’ll see the Edges and Junctions that make up this geometric network. In Arc Map, right click on the grey area to the right of the toobars and select the Utility Network Analyst toolbar to add to your display.
7. Consider the following frequency table representing the distribution of hourly wages for first jobs of a certain population. Hourly Wage at First Job Class Frequency 5.96.5 5 6.67.2 14 7.37.9 6 8.08.6 8 8.79.3 5 Step 1. Determine the midpoint for the fourth class. Step 2. Determine the midpoint for the second class. 8. For tax purposes, a college president needs to know the average salary of instructors at their college. Identify the sampling technique used for the study above. 9. Consider the following frequency table representing the distribution of hours students study for an exam in a week. Hours Students Study for an Exam in a Week Class Frequency 1119 3 2028 10 2937 4 3846 11 4755 14 Step 1. Determine the cumulative frequency for the fourth class. Step 2. Determine the cumulative frequency for the second class. 10. Consider the bar graphs, which show the numbers and percentages of bachelor's degrees in engineering and engineering technologies earned by women at U.S. schools. How many men earned bachelor's degrees in engineering and engineering technologies in 1975-76? Please round your answer to the nearest integer.
Also, if the “create index” window pops up, you should select “YES”: Lets join the ETrF from METRIC to the NLCD table also. Repeat the same joining process for the NLCD table. However, this time you need to select the second “FID” column from the list. It will have an ‘*’ next to it in the table above. In the join list below, it will be the second FID entry. Change the column header ‘Mean’ to ETrF_METRIC. Repeat this joining process for the sampled_ETrF_METRIC and sampled_LST tables. Each time, select the ‘last’ “FID” in the drop down list for the common field, and each time, rename “Mean” to a unique name. When we are finished with the joining of the five tables, the final table for Sample_NLCD should look like the following: Step 2. Exporting the Table to Excel Now we can export the sampled_NLCD table to a dbf so that we can open it in Excel. From the open sampled_NLCD table, click in the upper lefthand corner and select “export” and specify a ‘.dbf’ file type and name. Place the exported file into your project folder so that you can find it. In the second menu that shows up, you will want to export ‘all records.’ I named my dbf file “Sampled_NLCD_NDVI_ETrF_LST.dbf”. Now, open Excel, and go to the folder where the dbf is stored: (make sure that the “All files (*.*)” is selected so that the ‘.dbf’ file shows up The table will be opened in Excel, and it will look like a mess: So, the first thing we should do is to format columns so that they are easier to look at (NLCD should have no decimals, NDVI and ETrF should have three decimals and LST one decimal).
(13 pts) Problem 7. A spherical conductor of radius a, carries a charge Q as shown below. It is surrounded by a linear dielectric material of susceptibility , which extends out to radius b. Find the energy stored in the electric field for this configuration in terms of the variables given.
Math 142-11:10am Name ____________________________________ Spring 2018 Exam Score: _____________ Exam Grade: _____ Overall Course Grade: __________ Exam 2 Where at all possible, you must show work to support your answers. A correct answer without supporting work or explanation will not receive full credit. Simplify all your answers and indicate your answers clearly. ____________________________________________________________________________ 1. Given a) Find f(-4) b) Find x when 2. The graph of a function h is sketched on the right. a) Estimate b) Estimate x when c) Find the range of h 3. Some values of a function g are listed in the table on the right. x g(x) -2 -1 -1 1 0 3 1 5 2 7 3 9 a) Find g(1) b) Find x when g(x) = 3 4. Given the function
a) Find the x-intercept (in exact form). x-intercept: ( , ) b) Find the y-intercept (in exact form). y-intercept: ( , ) Year Number of collisions (in thousands) 1992 4.9 1995 4.6 2000 3.5 2005 3.1 2010 2.0 2011 2.0 5. The number of collisions at highway-railroad crossing (in thousands) are shown for various years in the table to the right. a) Let n be the number of collisions (in thousands) at t years since 1990. Create a scattergram of the data. Label the axes and the tickmarks. b) Sketch a line that comes close to the data points. c) Use your linear model from part b to estimate the number of collisions in 2015. d) Did you perform an interpolation or extrapolation in part c)? Explain. 6. The model estimates the percentage of Americans who are baseball fans, P(t), at t years since 1990.
c. d. e. 5. (10) Multiple Choice: Choose the best answer to each question. 1. A _________ What type of alkyl halides react best with strong nucleophiles to do substitution reactions? Primary Secondary Tertiary Aromatic 2. C _________ What type of alkyl halides react best with weak nucleophiles to do substitution reactions? Primary Secondary Tertiary Aromatic 3. A _________ Which of the halide ions is the poorest nucleophile in water? Fluoride Chloride Bromide Iodide 4. B _________ Which carbocation below is the most stable? A. B. C. D. 5. Which alkene below is the most stable?
CH343, Spring 2010, Exam 2 Answer Key ______________________________________ Name This exam consists of several parts of unequal difficulty. Look over the whole exam right now, and start on something you know well. If you don’t know something, skip it, and come back to it later. Use your time wisely. Keep Your Eyes On Your Own Paper! Grading Summary Problem1. _______________ (24) Problem 4. _______________ (12) Problem 2. _______________(24) Problem 5. _______________ (12) Problem 3. _______________ (12) Problem 6. _______________ (16) Total ___________________ (100) A Partial Periodic Table of the Elements 1A IIA IIIB IVB VB VIB VIII IB IIB IIIA IVA VA 1 H 1.01 2 He 4.00 3 Li 6.94 4 Be 9.01 5 B 10.8 6 C 12.0 7 N 14.0 8 O 16.0 9 F 19.0 10 Ne 20.2 11 Na 23.0 12 Mg 24.3 13 Al 27.0 14 Si 28.1 15 P 31.0 16 S 32.1 17 Cl 35.5 18 Ar 40.0 19 K 39.1 20 Ca 40.1 21 22 23 24 25 26 27 28 29 30 31 Ga 69.7 32 Ge 72.6 33 As 74.9 34 Se 79.0 35 Br 79.9 36 Kr 83.8 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Te 128 53 I 127 54 1. Give the major organic product of each of the following reactions or reaction sequences. Show stereochemistry if needed. If no reaction will occur, write “No Reaction.”
Darwinian Fitness Measurable mathematically; is a relative not an absolute measure The ability of an individual to survive and reproduce in its present environment Natural selection Not goal oriented Does not anticipate environmental changes Increases reproductive success in the current environment Always a generation behind any changes in the environment modifes designs, that is development, anatomy, physiology, ecology, and behavior in a random way Types of Natural Selection Normal distribution Bell shaped curve Can be controlled by multiple genes controlling polygenic phenotypic traits 1- Stabilizing selection The extremes are selected against producing over subsequent generations a population with less variation, reflected in the tighter bell-shaped curve examples: cliff swallows, selection for symmetry, form in animal species 2 - Disruptive selection Individuals with intermediate features are selected against, eventually producing over the subsequent generations a divided result with two distinct phenotypes at the extremes with their own bell-shaped distributions Examples: grove snails 3 – Directional selection Selection acts against one extreme and favors the other Example: peppered moths and pollution; artificial selection pressures; finches and drought Hardy Weinberg Principle (p+q)2 = p2 + 2pq + q2 = 1 p2 = individuals homozygous for first allele 2pq = individuals heterozygous for the alleles q2 = individuals homozygous for second allele Conditions: Selection coefficients sp2(p2)+ s2pq(2pq) + sq2(q2)= 1 where S varies from 1.0 to 0.0
developing country? What is the main obstacle to viability even by the beginning of the third trimester? ANSWER: 10. QUESTION You are out to dinner with your friend who is in her second trimester of pregnancy. You order a beer and she proceeds to order a glass of wine. When you raise a concern about alcohol being dangerous for the developing fetus, she replies, “My doctor told me it was okay to have a glass of wine once in a while.” What is your evaluation of this advice? ANSWER:
examination papers to centres if electronic transfer is not possible. The Examinations Officer must ensure that copies are received, made and stored under secure conditions. 3. Candidates unable to take examinations because of a crisis - centres remain open  The School can liaise with candidates to identify whether the examination can be sat at an alternative venue in agreement with the relevant awarding organisations. JCQ guidance on alternative site arrangements can be accessed through the JCQ website - http://www.jcq.org.uk/exams-office/ice---instructions-for-conducting-examinations  The School can offer candidates an opportunity to sit any examinations missed at the next available series  The School can apply to awarding organisations for special consideration for candidates where they have met the minimum requirements. Candidates are only eligible for special consideration if they have been fully prepared and have covered the whole course but are affected by adverse circumstances beyond their control. JCQ guidance on special consideration can be accessed through the JCQ website: 4. Centres are unable to open as normal during the examination period If Lady Lumley’s was unable to open as normal for scheduled examinations it must inform each awarding organisation with which examinations are due to be taken as soon as is possible. The responsibility for deciding whether it is safe for the school to open lies with the Headteacher (Head of centre). The Headteacher is responsible for taking advice, or following instructions from relevant local or national agencies in deciding whether they are able to open.  The School should open for examinations and examination candidates only if possible.  The School should use alternative venues in agreement with relevant awarding organisations (e.g. share facilities with other centres or use other public building, if possible)  The School may offer candidates an opportunity to sit any examinations missed at the next available series  The School can apply to awarding organisations for special consideration for  Candidates where they have met the minimum requirements (see item 3, page 6). 5. Disruption to the transportation of completed examination scripts If there is a delay in normal collection arrangements for completed examination scripts.  The School will seek advice from awarding organisations and normal collection agency regarding collection. The School must not to make arrangements for transportation without approval from awarding organisations.  The School must ensure secure storage of completed examination scripts until collection. 6. Assessment evidence is not available to be marked If due to large scale damage to or destruction of completed examination scripts/assessment evidence before it can be marked.  The awarding organisations should generate candidate marks for affected assessments based on other appropriate evidence of candidate achievement as defined by the