science and technology

The origin of the longer wavelength emission in 2-(4-fluorophenylamino)-5-(2,4-dihydroxybenzeno)-1,3,4-thiadiazole and its analogue 2-phenylamino-5-(2-hydroxybenzono)-1,3,4-thiadiazole

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/C9PP00490D, Paper
Ila, Reshmi Dani, Surya Pratap Verma, G. Krishnamoorthy
The longer wavelength emissions of 2-(4-fluorophenylamino)-5-(2,4-dihydroxybenzeno)-1,3,4-thiadiazole (FABT) and 2-phenylamino-5-(2-hydroxybenzono)-1,3,4-thiadiazole (PHBT) are due to ESIPT.
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Facile synthesis and exploration of excited state assisted two-photon absorption properties of D–A–D type thiophene–pyridine derivatives

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/D0PP00047G, Paper
Viprabha Kakekochi, Sathish Chatnahalli Gangadharappa, Nikhil P. P., Chandrasekharan Keloth, Ezequiel Wolcan, Udaya Kumar D
Diagrammatic representation of excited state assisted two-photon absorption (2PA) behavior of a donor–acceptor type conjugated polymer (P2TPy) exhibiting an extremely low optical limiting threshold.
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Outstanding Reviewers for Photochemical & Photobiological Sciences in 2019

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/D0PP90016H, Editorial

We would like to take this opportunity to highlight the Outstanding Reviewers for Photochemical & Photobiological Sciences in 2019, as selected by the editorial team for their significant contribution to the journal.
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Photochromic Meta-diamides for Optical Modulation of Ligand Activity and Neuron Function

Photochem. Photobiol. Sci., 2020, Accepted Manuscript
DOI: 10.1039/D0PP00045K, Paper
cuncun zhou, Liping Ren, Yunfan Ji, Xusheng Shao
Photopharmacology offers facile solutions to spatiotemporal control over ligand activity and receptor function. Meta-diamide insecticide acts on insect GABA receptors (GABARs) as an antagonist that causes firing of a neuron....
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Food-based strategies for prevention of vitamin D deficiency as informed by vitamin D dietary guidelines, and consideration of minimal-risk UVB radiation exposure in future guidelines.

Photochem. Photobiol. Sci., 2020, Accepted Manuscript
DOI: 10.1039/C9PP00462A, Paper
Kevin D Cashman
There is widespread acknowledgement of the presence of vitamin D deficiency in the community and the pressing need to address this. From a public health perspective, emphasis has been placed...
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Environmental effects of stratospheric ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2019

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/D0PP90011G, Perspective
G. H. Bernhard, R. E. Neale, P. W. Barnes, P. J. Neale, R. G. Zepp, S. R. Wilson, A. L. Andrady, A. F. Bais, R. L. McKenzie, P. J. Aucamp, P. J. Young, J. B. Liley, R. M. Lucas, S. Yazar, L. E. Rhodes, S. N. Byrne, L. M. Hollestein, C. M. Olsen, A. R. Young, T. M. Robson, J. F. Bornman, M. A. K. Jansen, S. A. Robinson, C. L. Ballaré, C. E. Williamson, K. C. Rose, A. T. Banaszak, D.-P. Häder, S. Hylander, S.-Å. Wängberg, A. T. Austin, W.-C. Hou, N. D. Paul, S. Madronich, B. Sulzberger, K. R. Solomon, H. Li, T. Schikowski, J. Longstreth, K. K. Pandey, A. M. Heikkilä, C. C. White
This assessment provides an update of the interactive effects of solar ultraviolet (UV) radiation, stratospheric ozone, and climate change on human health, terrestrial and aquatic ecosystems, biochemical cycles, air quality, and material damage.
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Palladium porphyrin complexes for photodynamic cancer therapy: effect of porphyrin units and metal

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/C9PP00363K, Paper
Jingran Deng, Haolan Li, Mengqian Yang, Fengshou Wu
The ROS generation ability and photocytotoxicity of the synthesized porphyrin compounds were enhanced with the number of porphyrin units in the photosensitizers.
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Exploration of fluorescence behavior of an imidazolium-based chemosensor in solution and in the solid state and its turn-on response to Al3+ in pure aqueous medium

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/C9PP00477G, Paper
Vaishali Saini, Rangan Krishnan, Bharti Khungar
An imidazolium-based quinoline framework is constructed, and its fluorescence behaviour studies with fluorescence turn-on chemosensory response to the selective detection of Al3+ in aqueous medium are discussed in detail.
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In vitro photodynamic treatment of cancer cells induced by aza-BODIPYs

Photochem. Photobiol. Sci., 2020, Advance Article
DOI: 10.1039/D0PP00026D, Paper
Miryam Chiara Malacarne, Stefano Banfi, Enrico Caruso
Two new aza-BODIPY photosensitizers featuring an iodine atom on each pyrrolic unit of their structure, were synthesized in fairly good yields and tested in vitro on two human cancer cell lines to assess their photodynamic efficacy.
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Turn-on mode fluorescent diarylethenes: Effect of electron-donating and electron-withdrawing substituents on photoswitching performance

Photochem. Photobiol. Sci., 2020, Accepted Manuscript
DOI: 10.1039/D0PP00064G, Paper
Ryota Iwai, Masakazu Morimoto, Masahiro Irie
Diarylethene derivatives having benzothiophene S,S-dioxide groups undergo turn-on mode fluorescence photoswitching. For the practical application to super-resolution fluorescence microscopy, the photoswitchable fluorescent molecules are desired to be resistant against photodegradation....
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Initial Management of Acute Pancreatitis

This JAMA Clinical Guidelines Synopsis summarizes the American Gastroenterological Association Institute’s 2018 guideline on initial management of acute pancreatitis.




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Progress in Multiple Sclerosis Research: An Example of Bedside to Bench

This Viewpoint attributes improved understanding of the role of autoantibodies and B-cell activity in MS pathogenesis and the development of effective therapies to the ability of physician-scientists to bring clinical insights to laboratory research and it emphasizes the importance of supporting and encouraging these investigators to reinvigorate science at the bedside.




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The Equitable Distribution of COVID-19 Therapeutics and Vaccines

This Viewpoint proposes a framework for international cooperation among governments and organizations to replace competition and hoarding with equitable global distribution of COVID-19 therapeutics and vaccines as they are developed.




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Surgery in a Time of Uncertainty—The Need for Universal Respiratory Precautions in the Operating Room

This Viewpoint proposes that universal respiratory precautions in the operating room—use of respirators with face masks and eye protection—could protect staff from possible coronavirus disease 2019 (COVID-19) infection and facilitate resumption of elective surgeries canceled during the first wave of the pandemic.




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Trends in SARS-CoV-2 PCR Test Positivity Among Outpatients in Seattle and Washington State

This population epidemiology study characterizes trends in polymerase chain reaction (PCR) test positivity for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Washington State and the Seattle area between March 1 and April 16, 2020, before and after statewide physical distancing guidelines and stay-at-home orders.




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When Should Physicians Act on Non–Statistically Significant Results From Clinical Trials?

This Viewpoint discusses considerations that might lead physicians to change their practice based on RCTs reporting non–statistically significant differences in primary outcomes, including trial methodology, totality of evidence, cost, invasiveness, and labor-intensiveness of the interventions being compared.




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Writing Medicine

My first glimpse into the craft of physician-writers did not come through Anton Chekhov, Walker Percy, or William Carlos Williams, whose works I only came to after medical school. As a schoolboy, I loved W. Somerset Maugham, although he never practiced medicine, and his craft had little to do with his medical degree. My introduction to physicians as writers came through my textbooks. Boyd’s Pathology made me aware of literary voice, the ability of authors to place themselves in the text, let their personality come through, and subtly become a character in the reading experience. On the topic of defining the moment of death, Boyd in his single-author text wrote, “It was the author of the book of Ecclesiastes who said, ‘There is a time to be born, and a time to die.’ Fortunately it is the clinician, not the pathologist, who has to make this difficult decision. Sometimes, however, the kindly doctor may find himself murmuring those moving lines from the last act of King Lear: O let him pass! He hates him/That would upon the rack of this tough world/Stretch him out longer.”




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Forty Years of A Piece of My Mind

Forty years ago, in 1980, Jimmy Carter was president. Pac-Man debuted. In medicine, smallpox was declared to be eradicated. Additionally, on May 9, 1980, A Piece of My Mind was inaugurated in JAMA. The first essay, “Tuna on Rye, 1984,” was written by then–senior editor Samuel Vaisrub under the pen name Sam Vee. He introduced the column with an editorial entitled “For the Peace of Your Mind.”




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Audio Highlights

Listen to the JAMA Editor’s Audio Summary for an overview and discussion of the important articles appearing in this week’s issue of JAMA.




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For the Peace of Your Mind

We hasten to assure our readers that a piece of my mind...is not intended as a sounding board for peevish gripes, nit-picking beefs, or sundry assortments of righteous indignation, which are usually prefaced by an angry “let me give you a piece of my mind.” Nor is this section of The Journal meant to be a podium for pompous preachments and ex cathedra pronouncements. Nor again is it designed to be a forum for half-baked speculations and warmed-over hypotheses. Least of all is a piece of my mind envisaged as a jamboree of jokes and a shivaree of limericks.




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Tuna on Rye, 1984

“Your medical clearance, sir?”




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The Environment: People Pollution

Meeting basic food and shelter needs of a growing population and catering to the insatiable consumer demands of people profoundly influences the quality of our environment. President Nixon observed that many of our present social problems may be related to the fact that we have had only 50 years in which to accommodate the second 100 million Americans. To provide for the increasing needs and demands of people, we are polluting our air, soil, and water. Unchecked population growth, people pollution, is not merely a problem, it is a paradox. It is an issue that is intimately private and yet inescapably public.




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My Friend Claims Her Second Round of Cancer

As my Italian father would say, since the house is burning      let us warm ourselves, and so




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pasture

with a weak smile the rabbi




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The Changing of the Seasons

In this narrative medicine essay, a level-one trauma nurse compares Arizona’s 2 seasons with the waning and the waxing of patient admissions and with the cycle of grief for loss of her mother and son, realizing how much their deaths have affected her nursing.




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Doppelgänger—Parallel Struggles to Lose Weight

In this narrative medicine essay, a primary care physician describes his patient’s struggle with obesity, sees himself in his patient, and wonders if his own struggles with weight loss impede his patient’s efforts to lose weight.




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Miles Together—A Patient-Physician Journey

In this narrative medicine essay, a family physician shares the beginning and ending of a near 12-year journey with a patient, helping him reach sobriety that led to a full though short life and feeling humbled to have been so entrusted to travel with him.




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Of What Am I Afraid? Plumbing the Depths

In this narrative medicine essay, a psychologist peels back the layers of her reticence and comes to terms with working with transgender patients as a member of LGBT community.




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The Cost of Technology—Patient-Centered Care

In this narrative medicine essay, a primary care physician describes a drawing by a 7-year-old patient who is sitting on an examination table with her mother cradling her baby sister with the physician’s back to them entering data in the computer as an example of a system that is sacrificing human contact for electronics.




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To Isaiah, a Casualty of a Fractured System

In this narrative medicine essay, Donald M. Berwick shares the story of his patient Isaiah with the 2012 Harvard Medical School graduating class as an example of a patient who deserved the treatment that cured him of leukemia but whose life was lost to poverty and exhorts them to regard health care as human right that must be preserved in the clinic and in public.




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Learning to Talk: Speaking the Language of Patients

In this narrative medicine essay, a resident physician recalls the joy she felt while learning the formal language of medicine as a student and anticipates the lifelong joy of learning to interpret that language in ways most helpful for her patients.




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John Lennon’s Elbow: The Long, Winding Road of the EMR Progress Note

In this narrative medicine essay, an attending physician shares his observations of how the changing nature of electronic medical record (EMR) hospital progress notes—often entered out of sequence and becoming ever longer and more unreadable—can hamper interacting with patients and providing patient care.




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The Road Back to the Bedside

In this narrative medicine essay, a group of physicians from an academic program in bedside medicine offer their observations on deficiencies in the assessment of US medical residents’ clinical skills and suggest principles for enhancing the teaching and high-stakes assessment of these skills to improve diagnostic accuracy and achieve truly patient-centered care.




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Crossing Boundaries—Violation or Obligation?

In this narrative medicine essay, a physician reflects on the rise of professional boundaries; on the ways in which such boundaries can in some instances foster uncaring patient-physician relationships; and on ways physicians might balance providing objective medical care and addressing social and economic injustices in the lives of their patients.




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EBM’s Six Dangerous Words

In this narrative medicine essay, a physician shares his thoughts about how the phrase “there is no evidence to suggest,” commonly used in the medical literature, can lead to false inferences and suppression of clinical intuition, and suggests four alternative phrases for clarifying inferences and improving shared decision-making.




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What Would You Do, Doctor?

In this narrative medicine essay, an emergency medicine physician recalls an encounter early in her career when she was asked by parents to make a recommendation regarding ending life support for a young child, reflects on the way practice has changed from physician-centric to patient-involved decision-making, and discusses how her husband’s pancreatic cancer diagnosis brought up a different perspective.




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Pimping Socrates

In this narrative medicine essay, a medical student reflects on individualized teaching practices in medicine, such as “the Socratic method,” in the context of her intervening course work related to a PhD in ancient history.




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The $50 000 Physical

In this narrative medicine essay, a physician reflects on his father’s experience, at the age of 85 years, of getting a physical examination from a new primary care physician that ended up setting off a cascade of examinations and treatments.




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The Nod

In this narrative medicine essay, an African American physician reflects on her experience one day with a white member of her ward team made up of two interns, three medical students, and a senior resident that sparked cultural and racial discussions throughout their month together that usually do not occur in such a diverse group.




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Whose Autonomy?

In this narrative medicine essay, a physician reflects on an experience during his medical residency involving the family dynamics of a couple in an effort to treat the pain of the husband.




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What Gets Measured Gets (Micro)managed

In this narrative medicine essay, an attending physician reflects on the evolution of the role of the attending physician from a supervisor in the background to a micromanaging supervisor to ensure that the proper steps are followed to meet the quality metrics in place in the current health system.




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A Silent Curriculum

In this narrative medicine essay, a medical student reflects on the ways in which she has seen racism and implicit bias affect clinical practice and emphasizes the importance of examining and challenging these biases to address health inequalities.




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I’m Sorry

In this narrative medicine essay, a physician recounts an error in which his patient received double the dose of a medication he prescribed, and what he learned from asking the patient for forgiveness.




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Story as Evidence, Evidence as Story

In this narrative medicine essay, a physician describes the power of anecdotes and stories as tools for public communication, education, and advocacy.




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The Greatest Generation

In this narrative medicine essay, the author discusses the inaccuracies of generational stereotypes and unfounded criticisms about trainees, and the problems that faculty members who voice these criticisms can cause among physicians.




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The Unreasonable Patient

In this narrative medicine essay, the author describes his experience with a patient referred to as “unreasonable,” and what the experience taught him about the need for physicians to perhaps improve their communication skills with patients rather than jump to labelling them.




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My Name Is Not “Interpreter”

In this essay, the author relays his personal experience with ethnicity-based discrimination and discusses the “microaggressions” that medical trainees from underrepresented groups based on race/ethnicity, gender, or sexual orientation experience.




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The Quick Physical Exam

In this narrative medicine essay, a teaching physician uses the fictitious characters Holmes and Watson to dispell the belief held by many physicians—that a thorough physical examination is an unnecessary art of the past. His emphasis: taking time to gather data and observe can avoid unneeded tests and guide accurate diagnosis.




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Questioning a Taboo

This narrative medicine essay summarizes ways in which physicians can use polite and scripted interruption to help patients effectively communicate their medical concerns, encourage further details, improve accuracy of the diagnosis, and set the agenda for the medical visit.




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A Death in the Family

In this narrative medicine essay, an anesthesia resident describes his feelings of loss and unease when a coresident is admitted as a patient and dies of an overdose of fentanyl; this article emphasizes the importance of prioritizing physician wellness programs to help avoid burnout and substance use disorder.