Soil Classification (Lab Report)

SOIL CLASSIFICATION – Soil 1 (Coarse-grained soil)
1.1 Objectives
Students are required to determine the particle size distribution of a coarse-grained soil
(Soil 1) by carrying out a sieve analysis and a sedimentation test (hydrometer analysis).
The results obtain from these tests are then used to classify Soil 1 according to the
Unified Soil Classification System (USCS).
1.2 Particle Size Determination (Soil 1)
The methods for particle size determination depend on the sizes of the particles.
For particles larger than coarse silt size (>0.075 mm) sieving can be used. Soil of a
known mass (approximately 200g) is shaken through a column of sieves with
progressively reducing mesh size. The mass of soil remaining on each sieve is measured.
For smaller particle sizes the sedimentation method (hydrometer analysis) would be used.
This method makes use of Stoke’s law which relates terminal velocity of spherical
particles falling through a fluid of known viscosity to their diameter. In reality the soil
grains are not spherical, however, for the purposes of classification the procedure is
sufficiently accurate.
1.2.1 Procedure
1.2.1.1 Sieve analysis
Record results of this test in Datasheet No 1 (attached).
1. Weigh a sample of approximately 200 gm of soil provided.
2. Assemble a series of sieves, with aperture size in descending order: 4.75 mm, 2.36
mm, 1.18 mm, 600 m, 425 m, 300 m, 150 m and 75 m.
3. Sieve the soil sample through the series of sieves, record the mass of soil retained on
each sieve, and the mass passing the finest mesh (i.e. soil retained in the pan).
4. A sedimentation test of the fine material in the pan will be performed following the
procedure described in the Australian Standard (see 1.3.1.2).
1.3.1.2 Sedimentation test
Record results of this test in Datasheet No 3 (attached).
It is important that you should familiarise yourself with the scale on the hydrometer
before commencing the test. Note that there are two types of hydrometer – one measures
the density of the suspension in g/l, the other measures the density of the suspension in
mg/l. For this experiment, use the hydrometer graduated in g/l. Assume that the specific
gravity of the soil particles, Gs = 2.65.
1. Fill the cylinder with distilled water until about ¾ full. Place the hydrometer in the
cylinder and record the meniscus correction reading Cm. Also record the temperature
of the water.
2. Add about 20g (M0) of the fine-grained soil retained in the pan into the milk shake
container and fill with distilled water until about ¾ full. Shake the mixture in a milk
shaker for about 2 minutes.
3. Pour the suspension into the 1000 ml cylinder. Wash any fines that remain in the
container into the cylinder with distilled water. Add more distilled water into the
cylinder to make up to 1000 ml.
4. Place a stopper over top of cylinder and turn upside down about 5 times
5. Place cylinder on table and commence timing.
Take hydrometer readings at:
30 secs
1 min
2 mins
4 mins
Take hydrometer out after 4 minutes and wash with distilled water
Take last reading at 8 minutes.
1.6 Reporting of Results
1. Complete the results of testing in Datasheets 1, 2 and 3.
2. The results of the particle size determination (from both the sieve analysis and
sedimentation test) should be presented on the semi-logarithmic plot (Datasheet No
2) provided showing the percentage passing against mesh aperture.
3. Students MUST complete Tasks 1 and 2 above and present them to the demonstrator
before leaving the lab class.
4. A type written report is to be submitted within one week of the practical class. The
report should be concise and include the following:
a) Objectives of experiment
b) Completed data sheets 1-3.
c) Give the classification of Soil 1 according to the USCS. Include the appropriate
symbols for the group
d) A short summary of the soil properties and of how good is Soil 1 as a fill material.

Environmental Injustice or Racism Paper

Instructions 

The final paper should be around 9-12 pages in length. Upload it PRIOR to the start of class.
Over the past several decades activist groups and governmental studies have brought attention to the notion of environmental justice. For this paper, locate and elaborate a case of environmental injustice or racism (preferably one that has occurred in the past 20 years). This case should also involve a social movement organization (SMO) working to address it. Your topic must be approved in advance by the instructor.
Your paper should briefly detail the following:
• Problem overview
• Background
• Demographics of the area
• Key actors/institutions involved
• Victims and costs of the event
• Responses by government and local community groups
• How this fits into the environmental justice framework
• The role of the SMO in the conflict
• Resource mobilization
• The political opportunity structure
• The framing the SMO engaged in as well as framing used by other actors
• The success or failure of the SMO

There will be four stages to this project:
(1) topic due
(2) detailed outline of what will be accomplished in the paper (including references)
(3) final paper.

The first two stages of the project are required to secure a grade, however, they will not be graded individually. These stages are your opportunity for advice regarding additional sources and areas of specific focus. The final paper will be penalized one letter grade for failure to submit any of the initial two stages
The final paper must be between 9 and 12 pages, exclusive of the title page, references, and any appendixes or diagrams you feel add to the case study. The major points in your paper must be substantiated by references to articles in the news, academic journals, and/or professional books (not including introductory textbooks; and not including material assigned for this course). A minimum of 5 citations is expected, ONE of which must be an academic journal article. Please attach a reference page.

Healthcare Evaluation Strategy

Instructions

What is strategic planning?

Present a healthcare evaluation strategy of your healthcare facility or your favorite facility.

maximum word count 2,600.

APA style formatting

Correctly cite at least six sources.

20 Applications of Nanotechnology

Sample Plagiarism-Free answer for 20 Applications of Nanotechnology (20-30 Pages). Format style IEEE.  Minimum of 15 sources.

 

Antibodies in RA

References should be in Vancouver Style**
Scenario: You are the pharmacist in the RA clinic and the following two patients are candidates
for initiation of biologics therapy.
Patient A: 44-year old woman, with a PMH of multiple sclerosis and COPD. Relevant results
include: blood pressure 120/70 mmHg, Erythrocyte Sedimentation Rate (ESR) >30 mm per hour,
rheumatoid factor (RF) 40 IU/mL, Anticyclic Citrullinated Peptide (anti-CCP) 35 IU/mL, C-reactive
protein (CRP) 14.0 mg/L.

Patient B: 65-year old male, with a PMH of myocardial infarction. Relevant results include: blood
pressure 170/110 mmHg, Erythrocyte Sedimentation Rate (ESR) >40 mm per hour, rheumatoid
factor (RF) 60 IU/mL, Anticyclic Citrullinated Peptide (anti-CCP) 45 IU/mL, C-reactive protein
(CRP) 20.0 mg/L.
Part 1 – With reference to the literature, discuss the appropriateness of infliximab or rituximab for
each of your patients. Your answer should include pharmacology, clinical and laboratory markers,
co-morbidities, patient demographics and cost-effectiveness.
(500 words)
Part 2 – Recent evidence has shown that rituximab can also be administered as a subcutaneous
injection instead of only as an intravenous infusion. With reference to the literature, discuss the
rationale for this and discuss the key steps for administering subcutaneous rituximab. (250
words)
Part 3 – As the pharmacist in the RA clinic, discuss your contribution to this patient’s management. (250 words)