By: Conrad Duncan
By: Jessica Hamzelou of New Scientist
The HPV vaccine appears to be working. Countries with vaccination programmes are lowering the rate of virus infection, precancerous lesions and genital warts in girls and women. Boys and men are benefiting too, even when they aren’t vaccinated.
That’s the conclusion of a review of 65 studies across 14 high-income countries, including 60 million people, over eight years. “Our results provide strong evidence that HPV vaccination works to prevent cervical cancer in real-world settings,” says Mélanie Drolet of Laval University in Canada, who led the work.
HPV vaccination programmes are currently running in around 115 countries, says Marc Brisson, also at Laval University, who co-authored the study. It is too soon to measure how these programmes might impact rates of cervical cancer, so the team looked at rates of HPV infection and the incidence of precancerous lesions and anal and genital warts, which can result from infection.
The team found that, between five and eight years into a vaccination programme, the prevalence of two strains of HPV that the vaccine protects against dropped by 83 per cent among teenage girls and 66 per cent in women aged 20 to 24. The prevalence of the virus also dropped by 37 per cent in women aged between 25 and 29, even though most were unvaccinated.
The incidence of anogenital warts also dropped – by 67 per cent among girls aged 15 to 19, and 54 per cent in women aged 20 to 24. Diagnoses of anogenital warts was reduced in unvaccinated boys and men too – by 48 per cent in boys aged 15 to 19, and 32 per cent in men aged 20 to 24. This suggests that vaccinating girls and young women can protect boys and men too, thanks to herd immunity, says Brisson.
The team also looked at the incidence of precancerous lesions in girls and women. Cervical intraepithelial neoplasia (CIN) is the term given to abnormal cervical cells, which can be diagnosed as CIN1, CIN2 or CIN3. The latter two can develop into cervical cancer if untreated.
Diagnoses of CIN2 and CIN3 decreased by 51 per cent among 15 to 19-year-old girls between five and nine years into vaccination programmes. Incidence of these lesions in unvaccinated women, on the other hand, increased over the same period.
Compliments of BBC
What are the arguments against reparations?
“If we were to pay reparations today, we would only divide the country further, making it harder to build the political coalitions required to solve the problems facing black people today.
By: Christian Jarrett of Readers Digest
Now in a paper in Clinical Psychological Science a group led by Kaylin Ratner at Cornell University has explored the possibility that derailment both precipitates, and is a consequence of, depression. After all, people with depression often struggle with motivation, losing the will to pursue goals they previously held dear. They also frequently withdraw from their relationships and social roles. All of these changes could trigger sensations of derailment. Or perhaps derailment comes first, with the inner disorientation leaving one vulnerable to depression. Surprisingly these questions have been little studied before now. “We nominate derailment as a new feature of the depressive landscape and underscore the need for greater empirical and practical attention at the crossroads of mental health and human development,” Ratner and her team write.
The researchers recruited nearly a thousand undergraduate students and asked them to complete measures of depression and derailment four times over the course of an academic year. The recently developed 10-item derailment measure was based on the students’ agreement or not with statements like “My life has been headed in the same direction for a long time,” and “I did not anticipate becoming the person that I currently am.”
The team found that the students’ scores on depression and derailment were relatively stable across the course of the year. Also, students’ derailment and depression symptoms tended to correlate at each of the measurement time points – implying there may well be an association between the two. In terms of cause and effect, and as the researchers predicted in advance, higher depression scores at an earlier time point tended to presage increases in derailment scores later on. However, in what they described as a “curious finding”, higher derailment scores earlier in the year actually tended to herald a decline in depression symptoms later in the year.
By: Jason Lemon of Newsweek
By: Ephrat Livni of QZ
No kid ever dreamed of growing up and driving for Uber or styling for Stitch Fix. In part, that’s because none of those companies existed when most of today’s adults were young. It’s also because, besides its much-touted “flexibility,” the gig economy isn’t much of a place to build a career. Instead, over the course of less than a decade, the self-described “tech companies” that connect people to gig work have managed to erode hard-fought labor protections in place for a century.
In Hustle and Gig, to be published in March by University of California Press, sociologist Alexandrea Ravenelle interviews 80 gig workers who are struggling, striving, and succeeding. She analyzes their stories in the context of US employment history and concludes that “for all its app-enabled modernity, the gig economy resembles the early industrial age…the sharing economy is truly a movement forward to the past.”
Although gig work was initially seen as a way to maximize worker freedom and create opportunities, it has, in its short history, proven corrosive. Ravenelle notes that a small percentage of people are making lots of money via side hustles, but they tend to be those who need it least. For example, she speaks to independent hoteliers in New York renting out rooms and apartments via AirBnB, including a corporate lawyer and a man with a chain of laundromats. Because they already had capital, have steady sources of income apart from their side gigs, and are willing to skirt rental laws, these two individuals are able to invest heavily in their “gigs” and create lucrative businesses.
Sadly, those who most need to work can find themselves trapped in a cycle of struggle. Ravenelle interviewed men and women signed up to do tasks on Task Rabbit—prior to its acquisition by IKEA—and who drove for Uber, for example. They were not employees and so had no health insurance, workers’ compensation protections, employer contributions to Social Security and payroll taxes, paid time off, family leave protections, discrimination protections, or unemployment insurance benefits.
Sometimes, this gig work also requires an initial outlay of capital. (My own neighbor just traded in her old vehicle for a new car, taking on thousands of dollars in debt so that she can make extra money driving for Lyft.) At the very least, a potential worker needs a smartphone and wi-fi service. Ravanelle’s book boasts an image inside of a young man in a park panhandling for $30 to activate his phone service so that he can start picking up work.
By: Luke Dormehl of Digital Trends
“We have developed a method to convert polyolefin waste, which include Type 2 (HDPE), Type 4 (LDPE and LLDPE), and Type 5 (PP), into various useful products,” Nien-Hwa Linda Wang, a professor in Purdue’s Davidson School of Chemical Engineering, told Digital Trends. “The conversion is achieved using subcritical or supercritical water, which can convert plastic waste into oil, fuels, or gas, depending on the processing conditions. Some impurities in the plastic waste is converted into oil or extracted into the processing water. Both conversion and extraction are achieved in the same process.”
By: Emma McIntosh of Calgary