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Bengaluru, Jun 22: Concerned over the increase in COVID-19 cases in the city, Karnataka Chief Minister B S Yediyurappa on Monday directed officials to implement lockdown measures strictly in the clusters which have reported more infections.

Yediyurappa held a meeting with Ministers and senior officials regarding containing COVID-19 in Bengaluru and said it can be achieved only if preventive measures are implemented strictly and asked the officials to work in this direction.

"Lockdown shall be implemented strictly in the clusters which reported more cases, especially, K.R. Market and surrounding areas such as Siddapura, VV Puram, Kalasipalya etc. It was decided to seal the adjoining streets, where the cases are reported, a release from the Chief Minister's office said. Stringent action would be taken against those who violate quarantine norms and FIR would be filed if necessary, it said.

Till Sunday evening, the state capital has reported 1,272 cases of COVID-19, including 64 deaths and 411 discharges. On Sunday, as many as 196 fresh cases were recorded. Officers were directed to ensure hygiene and provide other basic amenities to the people who were quarantined in the social welfare department's hostels and other government institutions.

"COVID-19 should be contained without affecting the economic activities in Bengaluru, which resumed recently," the Chief Minister said.

Noting that booth-level officers and volunteers were working to trace contacts and monitor quarantined persons, he said the COVID war room shall have real-time information on the availability of beds in various designated hospitals and facilitate treatment to the infected without loss of time.

A bulletin from the Bruhat Bengaluru Mahanagara Palike (BBMP), the city civic body, said there were 298 active containment zones in the city. BBMP Commissioner B H Anil Kumar along with the Chamarajpet Congress MLA B Z Zameer Ahmed Khan visited a few slum areas in the city to take stock of the COVID-19 situation, officials said.

Bengaluru, Jun 5: An earthquake of magnitude 4.0 on the Richter Scale jolted Karnataka on Friday morning while another with a magnitude of 4.7 was felt in Jharkhand.

The tremors were felt in Hampi (Karnataka) and Jamshedpur (Jharkhand), according to the National Center for Seismology (NCS).

According to NCS, the aftershocks were felt at 6:55 am in both the places today.

Washington D.C., May 8: The prime time for brain development in a child's life is the first year, where the infant spends most of the time asleep. It is the time when neural connections form and sensory memories are encoded.

However, when sleep is disrupted, as occurs more often among children with autism, brain development may be affected, too.

New research led by the University of Washington finds that sleep problems in a baby's first 12 months may not only precede an autism diagnosis but also may be associated with altered growth trajectory in a key part of the brain, the hippocampus.

The study, which was published in the American Journal of Psychiatry, researchers report that in a sample of more than 400 taken of 6- to 12-month-old infants, those who were later diagnosed with autism were more likely to have had difficulty falling asleep.

It also states that this sleep difficulty was associated with altered growth trajectories in the hippocampus.

"The hippocampus is critical for learning and memory, and changes in the size of the hippocampus have been associated with poor sleep in adults and older children.

As many as 80 per cent of the children with autism spectrum disorder have sleep problems," said Annette Estes, director of the UW Autism Center and senior author of the study.

"In our clinical experience, parents have a lot of concerns about their children's sleep, and in our work on early autism intervention, we observed that sleep problems were holding children and families back," added Estes, who is also a UW professor of speech and hearing sciences.

"It could be that altered sleep is part-and-parcel of autism for some children. One clue is that behavioural interventions to improve sleep don't work for all children with autism, even when their parents are doing everything just right. This suggests that there may be a biological component to sleep problems for some children with autism," said Estes.

To consider links among sleep, brain development, and autism, researchers at the IBIS Network looked at MRI scans of 432 infants, surveyed parents about sleep patterns, and measured cognitive functioning using a standardized assessment.

At the outset of the study, infants were classified according to their risk for developing autism: Those who were at higher risk of developing autism -- about two-thirds of the study sample -- had an older sibling who had already been diagnosed.

Infant siblings of children with autism have a 20 per cent chance of developing autism spectrum disorder -- a much higher risk than children in the general population.

In the current study, 127 of the 432 infants were identified as "low risk" at the time the MRI scans were taken because they had no family history of autism.

They later evaluated all the participants at 24 months of age to determine whether they had developed autism. Of the roughly 300 children originally considered "high familial risk," 71 were diagnosed with autism spectrum disorder at that age.

Problems with sleep were more common among the infants later diagnosed with an autism spectrum disorder, as were larger hippocampi. No other subcortical brain structures were affected, including the amygdala, which is responsible for certain emotions and aspects of memory, or the thalamus, a signal transmitter from the spinal cord to the cerebral cortex.

The authors note that while parents reported more sleep difficulties among infants who developed autism compared to those who did not, the differences were very subtle and only observed when looking at group averages across hundreds of infants.

Sleep patterns in the first years of life change rapidly as infants transition from sleeping around the clock to a more adult-like sleep/wake cycle. Until further research is completed, Estes said, it is not possible to interpret challenges with sleep as an early sign of increased risk for autism.