 The man hours required to set all of that up, the testing and instability, everything would have a hidden cost associated with it, not just the inflated cloud provide costs.  
They also (probably) can't do a hybrid setup with some resources in their on prem servers and some in AWS because the latency between the two would be incredible, unless they somehow had a direct connection between AWS's regional datacenter and SE's datacenter (very unlikely).A 2011 study suggesting that men face a significantly increased risk of prostate cancer if their prostate-specific antigen (PSA) level is ≥1.5 mg/ mL—a much lower threshold than that typically applied in practice—is attracting attention.
In May, E. David Crawford, MD, accepted the Robert J. Krane Prize for Best Clinical Paper of 2011 from the British Journal of Urology International, in which the study was published.1 Titled “Prostate- Specific Antigen 1.5—4.0 ng/mL: A Diagnostic Challenge and Danger Zone,” the paper summarizes the results of a retrospective analysis that Crawford and his fellow investigators conducted.
In the study, the team found that men with a baseline PSA between 1.5 and 4.0 ng/mL faced a 15-fold increase in prostate cancer over a four-year period as compared with men whose baseline PSA levels were <1.5 ng/mL. That finding raises questions, the authors wrote, about the predictive value of the current standard threshold for identifying men at high risk for prostate cancer, which is defined as a PSA level ≥4.0 ng/mL.
The authors suggested establishing an Early Warning PSA Zone between 1.5 and 4.0 ng/mL that “may help physicians to identify at-risk men who would most benefit from PSA screening and risk reduction therapies,” and could lead to the diagnosis of cancers that otherwise might be missed.
The retrospective study included 21,502 men at least 40 years old with initial PSA values between 0 and 4.0 ng/mL who were followed for at least four years after their first PSA measurement. The primary outcome was a diagnosis of prostate cancer within four years of a baseline PSA test.
Of patients with a baseline PSA ≥1.5 ng/mL, 7.85% were diagnosed with prostate cancer, compared with 0.51% of patients with a baseline PSA <1.5 ng/mL—a 15-fold increase. Among African-American patients with PSA levels between 1.5 and 4.0 ng/mL, 10.39% were diagnosed with the disease, a 19-fold increase in the prostate cancer rate as compared with African-American patients with PSA levels <1.5 ng/mL, whose chances of having the condition were similar to that of lower-PSA patients in the study as a whole.
In a multivariate analysis adjusting for age and race, men of all groups with baseline PSA levels of ≥1.5 faced a 12.4% increase in their likelihood of developing prostate cancer within four years as compared with men with baseline PSAs <1.5 ng/mL.
PSA indicates prostate-specific antigen level measured by ng/mL.
Several other studies have suggested that a PSA level substantially lower than 4.0 ng/mL should be used as the threshold for predicting prostate cancer risk, Crawford et al wrote.
The investigators cited the Prostate Cancer Prevention Trial,2 which included 2950 men whose PSA levels had never reached 4.0 ng/mL. In that trial, 10.1% of men with PSA levels between 0.6 and 1.0 ng/mL had prostate cancer; 17.0% of men with PSAs between 1.1 and 2.0 ng/mL had the disease; 23.9% of men with PSAs between 2.1 and 3.0 ng/mL had prostate cancer; and 26.9% of men with PSAs between 3.1 and 4.0 ng/mL had the condition. Overall, 15.2% of men in the study, despite having PSA levels considered normal under current standards, had prostate cancer.
A number of studies have also indicated that, when PSA levels exceed 1.5 ng/mL, men with BPH face an increased risk of the condition’s progression, Crawford and his team pointed out. In the Medical Therapy of Prostatic Symptoms (MTOPS) study,3 they noted, researchers found that men with PSA levels above 1.6 ng/mL were more likely than men with PSAs below that level to experience a four-point or greater worsening, over time, of their American Urological Association Symptom Score, along with acute urinary retention and the need for invasive surgical treatment.
Crawford accepted the Robert J. Crane Prize during the American Urological Association’s Annual Meeting.
Crawford ED, Moul JW, Rove KO, et al. Prostate-specific antigen 1.5—4.0 ng/mL: a diagnostic challenge and danger zone [published online ahead of print June 28, 2011]. BJU Int. 2011;108(11):1743-1749. doi: 10.1111/j.1464-410X.2011.10224.x.
"""
Test that the root API endpoint is available.
"""

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

import json
import requests

# We expect the server to be running on the local host
url = "http://localhost:8000/api/"

print("Testing InvenTree API endpoint")

response = requests.get(url)

assert(response.status_code == 200)

print("- Response 200 OK")

data = json.loads(response.text)

required_keys = [
   'server',
   'version',
    'apiVersion',
    'worker_running',
]

for key in required_keys:
    assert(key in data)
    print(f"- Found key '{key}'")

# Check that the worker is running
assert(data['worker_running'])

print("- Background worker is operational")

print("API Endpoint Tests Passed OK")
You’d be forgiven for thinking that wildlife in London is mostly rats, grey squirrels and unpleasant creepy-crawlies. But like any other urban jungle, London offers food and shelter to animals that are incredibly adaptable to an urban environment and there are cuter things to find than pigeons and seagulls, so keep your eyes peeled!
These powerful birds of prey started moving into the urban sprawl in the 90s, possibly due to their penchant for London’s tasty pigeons and often make themselves at home at the top of tall buildings like Battersea Power Station, the Tate Modern, and occasionally tower blocks. Peregrine falcons are protected by law as they were traditionally a prized catch for hunters, but in London the biggest threat is disturbance to their nests. These super-fast birds dive in on their prey and then either strike them dead immediately or grab them with their claws while still in flight. With a wingspan of up to a metre, they are both majestic and intimidating.
Urban foxes are a bit like Starbucks – you're never that far away from one, even if you can't see it. Research estimates that there are 18 foxes per square kilometre in the capital, with even more density in North than South London. They might be as common as muck but still, there is something a little magical about meeting an urban fox on a quiet street late at night. Foxes are elegant, clever and roam around with a nonchalance that is simply charming – that is if they are not busy scattering the content of you bins all over your front step or making disturbing shrieking sounds all through the night. They keep the city rats under control though, which is pretty great.
Although otter numbers in the rivers surrounding London are still low compared to the rest of the country, the population around the river Lea is breeding and spreading. A group of nature enthusiasts are raised £10,000 to transform the Regent’s Canal into a “living waterway” to entice the voles and otters from the Lea Valley to broaden out their territory. Money was used by the Wildlife Gardeners of Haggerston to plant shallow areas with yellow flag iris and other native aquatic plants between the Kingsland and Whitmore Road bridges. The idea was to filter the water from excess nutrients and reduce algae and duckweed, to create a pleasant natural environment for the animals to enjoy. Members are also working with the Woodland Trust to replicate woodland edge habitat by planting native hedging, all to tempt the River Thames’ most mysterious inhabitant to move back to the city.
The largest animal you’re likely to find in the wild in London is the deer in Richmond Park. Deer are early risers and you are most likely to catch them at dawn before the dogwalkers and runners make them skittish. The larger red deer are a little more courageous than fallow deer. In the summer months the undergrowth is high but during autumn, they will be easier to spot. Deer aren't just confined to Richmond Park - small muntjac deer in particular are on the increase, and have been seen in woods in Waltham Forest, Tooting and Sydenham Hill Wood.
Hearing the name Canary Wharf generally conjures up images of Wall Street-esque wolves, but the area is also popular with another animal - seals. The marine mammals have been seen swimming in the Thames Estuary along with other underwater friends, including porpoises and dolphins. Hot spots for seals – both common and grey seals – show