Soldiers took up positions around a Ukrainian military base in Crimea.

sean gallup/getty images

Soldiers took up positions around a Ukrainian military base in Crimea.

Ukrainians gathered in a rally at Kiev's Independence Square on Sunday.

Sergei Chuzavkov/Associated Press

Ukrainians gathered in a rally at Kiev's Independence Square on Sunday.

Ukrainians held portraits of people killed during protests in Kiev’s Independence Square on Sunday.

Sergey Dolzhenko/epa

Ukrainians held portraits of people killed during protests in Kiev’s Independence Square on Sunday.

Pro-Russian people stopped and inspected vehicles on a road to Sevastopol in Crimea.

sean gallup/getty images

Pro-Russian people stopped and inspected vehicles on a road to Sevastopol in Crimea.

A man carried a flag and wore a sign that said “Motherland and Freedom!” in Moscow in support of Russians in Ukraine.

dmitry serebryakov/getty images

A man carried a flag and wore a sign that said “Motherland and Freedom!” in Moscow in support of Russians in Ukraine.

Western nations will react to Russia, Kerry says

Western powers have a range of ways to isolate Russia after its actions in Ukraine, Secretary of State John Kerry said.

Unidentified gunmen surround a Ukrainian military base in Privolnoye, Ukraine, on Sunday. The gunmen traveled in a convoy whose vehicles have Russian license plates.

Tense standoff at Ukrainian military base

Hundreds of unidentified gunmen are surrounding the base, preventing Ukrainian troops from leaving.

Ron Wenzel inspected 400 buckets on trees that produce thousands of gallons of maple sap in Hebron, Conn.

A jolt for the science behind harvesting maple sap

Scientists in Vermont have discovered a technique to collect maple sap without taps or buckets or, even, what you’d call trees.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/03/02/BostonGlobe.com/Metro/Images/josh150-11267.jpg Correction chief, staff rebuked in patient death

Governor Patrick announced disciplinary measures in the case of a mentally ill man who died in restraints at Bridgewater State Hospital.

Joshua Oppenheimer behind the scenes in “The Act of Killing.”

Harvard film program alumni get Oscar recognition

Three films by former Harvard classmates are among the five nominated for an Oscar for best documentary feature.

Parade participant Jimmy Wool of South Boston said, “We’re all God’s children” and there should be no restrictions on gays in the event.

Mixed reactions to group’s St. Patrick’s parade invite

Some criticized plans for MassEquality to march in the South Boston parade while restricting displays of gay pride; others viewed it as a breakthrough.

The menu offered at Brandeis drew no apparent complaints as Black History Month wound down last week.

Black History Month menus upset college students

Students at Newton’s Lasell College said including fare that historically has been used to depict and demean African-American culture perpetuates hurtful labels.

John L. Allen Jr.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/03/02/BostonGlobe.com/Metro/Images/John_Allen-11259.png Pope’s financial fixer has instincts of linebacker

Columnist John L. Allen Jr. looks at a new way of doing the Vatican’s business, elder care, a field hospital in Ukraine, and . . . the end of history?

Opinion

TOM KEANE

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/02/27/BostonGlobe.com/EditorialOpinion/Images/0302oped_keane.jpg Missing the train

A Harvard study of rail commuters proves that it’s connectedness, not diversity, that brings harmony.

Sports

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Pacers 102, Celtics 97

Paul George (right) reacts after hitting a 3-pointer in the fourth that sealed it for Indiana.

Celtics’ bid for upset of Pacers falls short

The Celtics couldn’t stop Paul George, who finished with 25 points, including a 3-pointer in the fourth that sealed it for Indiana.