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1. PBjam: Asteroseismology for everyone

Author

Nielsen, M.B, Guy Davies, Alex Lyttle, and Lindsey Carboneau

Subjects
Asteroseismology, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Open source, Astrophysics::Galaxy Astrophysics, Software
Abstract

Asteroseismology is an exceptional tool for measuring fundamental stellar properties. The CoRoT, Kepler and TESS missions have observed thousands of stars that oscillate in a similar way as our Sun. This allows us to place tight constraints on their mass, radius and even age, which are important for understanding stellar structure and evolution, exoplanets and stellar populations in our galaxy. The enormous amount of observations that are and will become available, must be made accessible to the community in an easy and straightforward way. We are developing the PBjam platform for this purpose. PBjam is an open-source Python package for measuring oscillation frequencies of stars, and aims to be fast, easy and automated, allowing users in the wider community to exploit asteroseismic constraints in their studies. more...

Published
2021
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3. Palliative pelvic exenteration: A systematic review of patient-centered outcomes

Author

Hidde M. Kroon, N.N. Dudi-Venkata, S. Bedrikovetski, M.L. Thomas, M.E. Kelly, A.G.J. Aalbers, N. Abdul Aziz, M. Abraham-Nordling, T. Akiyoshi, W. Alberda, M. Andric, A. Antoniou, K.K. Austin, R.P. Baker, M. Bali, G. Baseckas, B.K. Bednarski, G.L. Beets, P.L. Berg, J. Beynon, S. Biondo, L. Bordeianou, M. Brunner, P. Buchwald, J.W.A. Burger, D. Burling, N. Campain, K.K.L. Chan, G.J. Chang, M.H. Chew, P. C Chong, H.K. Christensen, M. Codd, A.J. Colquhoun, A. Corr, M. Coscia, P.E. Coyne, B. Creavin, L. Damjanovic, I.R. Daniels, M. Davies, R.J. Davies, J.H.W. de Wilt, Q. Denost, D. Dietz, E.J. Dozois, M. Duff, T. Eglinton, J.M. Enriquez-Navascues, M.D. Evans, N.S. Fearnhead, F.A. Frizelle, E. Garcia-Granero, J.L. Garcia-Sabrido, L. Gentilini, M.L. George, R. Glynn, T. Golda, B. Griffiths, D.A. Harris, M. Evans, J.A.W. Hagemans, D.P. Harji, A.G. Heriot, W. Hohenberger, T. Holm, J.T. Jenkins, S. Kapur, Y. Kanemitsu, S.R. Kelley, D.S. Keller, H. Kim, C.E. Koh, N.F.M. Kok, R. Kokelaar, C. Kontovounisios, M. Kusters, D.W. Larson, W.L. Law, S. Laurberg, P. Lee, M.L. Lydrup, A.C. Lynch, C. Mantyh, K.L. Mathis, A. Martling, W.J.H.J. Meijerink, S. Merkel, A.M. Mehta, F.D. McDermott, J.S. McGrath, A. Mirnezami, J.R. Morton, T.G. Mullaney, J.W. Mesquita-Neto, M.B. Nielsen, G.A.P. Nieuwenhuijzen, P.J. Nilsson, P.R. O'Connell, G. Palmer, D. Patsouras, G. Pellino, G. Poggioli, M. Quinn, A. Quyn, R.W. Radwan, S. Rasheed, P.C. Rasmussen, S.E. Regenbogen, R. Rocha, J. Rothbarth, C. Roxburgh, H.J.T. Rutten, É. Ryan, P.M. Sagar, A. Saklani, A.M.P. Schizas, E. Schwarzkopf, V. Scripcariu, I. Shaikh, D. Shida, A. Simpson, N.J. Smart, J.J. Smith, M.J. Solomon, M.M. Sørensen, S.R. Steele, D. Steffens, L. Stocchi, N.A. Stylianides, P.P. Tekkis, C. Taylor, P. Tsarkov, S. Tsukamoto, W.H. Turner, J.B. Tuynman, G.H. van Ramshorst, D. van Zoggel, W. Vasquez-Jimenez, C. Verhoef, M. Verstegen, C. Wakeman, S. Warrier, H.H. Wasmuth, M.R. Weiser, J.M.D. Wheeler, J. Wild, J. Yip, D.C. Winter, T. Sammour, Kroon H.M., Dudi-Venkata N.N., Bedrikovetski S., Thomas M.L., Kelly M.E., Aalbers A.G.J., Abdul Aziz N., Abraham-Nordling M., Akiyoshi T., Alberda W., Andric M., Antoniou A., Austin K.K., Baker R.P., Bali M., Baseckas G., Bednarski B.K., Beets G.L., Berg P.L., Beynon J., Biondo S., Bordeianou L., Brunner M., Buchwald P., Burger J.W.A., Burling D., Campain N., Chan K.K.L., Chang G.J., Chew M.H., C Chong P., Christensen H.K., Codd M., Colquhoun A.J., Corr A., Coscia M., Coyne P.E., Creavin B., Damjanovic L., Daniels I.R., Davies M., Davies R.J., de Wilt J.H.W., Denost Q., Dietz D., Dozois E.J., Duff M., Eglinton T., Enriquez-Navascues J.M., Evans M.D., Fearnhead N.S., Frizelle F.A., Garcia-Granero E., Garcia-Sabrido J.L., Gentilini L., George M.L., Glynn R., Golda T., Griffiths B., Harris D.A., Evans M., Hagemans J.A.W., Harji D.P., Heriot A.G., Hohenberger W., Holm T., Jenkins J.T., Kapur S., Kanemitsu Y., Kelley S.R., Keller D.S., Kim H., Koh C.E., Kok N.F.M., Kokelaar R., Kontovounisios C., Kusters M., Larson D.W., Law W.L., Laurberg S., Lee P., Lydrup M.L., Lynch A.C., Mantyh C., Mathis K.L., Martling A., Meijerink W.J.H.J., Merkel S., Mehta A.M., McDermott F.D., McGrath J.S., Mirnezami A., Morton J.R., Mullaney T.G., Mesquita-Neto J.W., Nielsen M.B., Nieuwenhuijzen G.A.P., Nilsson P.J., O'Connell P.R., Palmer G., Patsouras D., Pellino G., Poggioli G., Quinn M., Quyn A., Radwan R.W., Rasheed S., Rasmussen P.C., Regenbogen S.E., Rocha R., Rothbarth J., Roxburgh C., Rutten H.J.T., Ryan E., Sagar P.M., Saklani A., Schizas A.M.P., Schwarzkopf E., Scripcariu V., Shaikh I., Shida D., Simpson A., Smart N.J., Smith J.J., Solomon M.J., Sorensen M.M., Steele S.R., Steffens D., Stocchi L., Stylianides N.A., Tekkis P.P., Taylor C., Tsarkov P., Tsukamoto S., Turner W.H., Tuynman J.B., van Ramshorst G.H., van Zoggel D., Vasquez-Jimenez W., Verhoef C., Verstegen M., Wakeman C., Warrier S., Wasmuth H.H., Weiser M.R., Wheeler J.M.D., Wild J., Yip J., Winter D.C., Sammour T., Kroon, Hm, Dudi-Venkata, Nn, Bedrikovetski, S, Thomas, Ml, Kelly, Me, Aalbers, Agj, Abdul Aziz, N, Abraham-Nordling, M, Akiyoshi, T, Alberda, W, Andric, M, Antoniou, A, Austin, Kk, Baker, Rp, Bali, M, Baseckas, G, Bednarski, Bk, Beets, Gl, Berg, Pl, Beynon, J, Biondo, S, Bordeianou, L, Brunner, M, Buchwald, P, Burger, Jwa, Burling, D, Campain, N, Chan, Kkl, Chang, Gj, Chew, Mh, C Chong, P, Christensen, Hk, Codd, M, Colquhoun, Aj, Corr, A, Coscia, M, Coyne, Pe, Creavin, B, Damjanovic, L, Daniels, Ir, Davies, M, Davies, Rj, de Wilt, Jhw, Denost, Q, Dietz, D, Dozois, Ej, Duff, M, Eglinton, T, Enriquez-Navascues, Jm, Evans, Md, Fearnhead, N, Frizelle, Fa, Garcia-Granero, E, Garcia- Sabrido, Jl, Gentilini, L, George, Ml, Glynn, R, Golda, T, Griffiths, B, Harris, Da, Evans, M, Hagemans, Jaw, Harji, Dp, Heriot, Ag, Hohenberger, W, Holm, T, Jenkins, Jt, Kapur, S, Kanemitsu, Y, Kelley, Sr, Keller, D, Kim, H, Koh, Ce, Kok, Nfm, Kokelaar, R, Kontovounisios, C, Kusters, M, Larson, Dw, Law, Wl, Laurberg, S, Lee, P, Lydrup, Ml, Lynch, Ac, Mantyh, C, Mathis, Kl, Martling, A, Meijerink, Wjhj, Merkel, S, Mehta, Am, Mcdermott, Fd, Mcgrath, J, Mirnezami, A, Morton, Jr, Mullaney, Tg, Mesquita-Neto, Jw, Nielsen, Mb, Nieuwenhuijzen, Gap, Nilsson, Pj, O’Connell, Pr, Palmer, G, Patsouras, D, Pellino, G, Poggioli, G, Quinn, M, Quyn, A, Radwan, Rw, Rasheed, S, Rasmussen, Pc, Regenbogen, Se, Rocha, R, Rothbarth, J, Roxburgh, C, Rutten, Hjt, Ryan, E, Sagar, Pm, Saklani, A, Schizas, Amp, Schwarzkopf, E, Scripcariu, V, Shaikh, I, Shida, D, Simpson, A, Smart, Nj, Smith, Jj, Solomon, Mj, Sørensen, Mm, Steele, Sr, Steffens, D, Stocchi, L, Stylianides, Na, Tekkis, Pp, Taylor, C, Tsarkov, P, Tsukamoto, S, Turner, Wh, Tuynman, Jb, van Ramshorst, Gh, van Zoggel, D, Vasquez- Jimenez, W, Verhoef, C, Verstegen, M, Wakeman, C, Warrier, S, Wasmuth, Hh, Weiser, Mr, Wheeler, Jmd, Wild, J, Yip, J, Winter, Dc, and Sammour, T. more...

Subjects
medicine.medical_specialty, Pelvic Neoplasm, Palliative care, Fistula, medicine.medical_treatment, Disease, Locally advanced pelvic cancer, Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14], 03 medical and health sciences, 0302 clinical medicine, SDG 3 - Good Health and Well-being, Quality of life, Internal medicine, Patient-Centered Care, Outcome Assessment, Health Care, medicine, Palliative surgery, Humans, Pelvic Neoplasms, Pelvic exenteration, business.industry, Mortality rate, Patient-centered outcomes, Palliative Care, General Medicine, medicine.disease, Pelvic Exenteration, Oncology, 030220 oncology & carcinogenesis, 030211 gastroenterology & hepatology, Surgery, business, Human
Abstract

Item does not contain fulltext OBJECTIVE: Palliative pelvic exenteration (PPE) is a technically complex operation with high morbidity and mortality rates, considered in patients with limited life expectancy. There is little evidence to guide practice. We performed a systematic review to evaluate the impact of PPE on symptom relief and quality of life (QoL). METHODS: A systematic review was conducted according to the PRISMA guidelines using Ovid MEDLINE, EMBASe, and PubMed databases for studies reporting on outcomes of PPE for symptom relief or QoL. Descriptive statistics were used on pooled patient cohorts. RESULTS: Twenty-three historical cohorts and case series were included, comprising 509 patients. No comparative studies were found. Most malignancies were of colorectal, gynaecological and urological origin. Common indications for PPE were pain, symptomatic fistula, bleeding, malodour, obstruction and pelvic sepsis. The pooled median postoperative morbidity rate was 53.6% (13-100%), the median in-hospital mortality was 6.3% (0-66.7%), and median OS was 14 months (4-40 months). Some symptom relief was reported in a median of 79% (50-100%) of the patients, although the magnitude of effect was poorly measured. Data for QoL measures were inconclusive. Five studies discouraged performing PPE in any patient, while 18 studies concluded that the procedure can be considered in highly selected patients. CONCLUSION: Available evidence on PPE is of low-quality. Morbidity and mortality rates are high with a short median OS interval. While some symptom relief may be afforded by this procedure, evidence for improvement in QoL is limited. A highly selective individualised approach is required to optimise the risk:benefit equation. more...

Published
2019
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4. Solar cycle variation of νmax in helioseismic data and its implications for asteroseismology

Author

Steven J. Hale, Yvonne Elsworth, Martin Bo Nielsen, William J. Chaplin, Warrick H. Ball, Lucas S. Viani, Andrea Miglio, Guy R. Davies, Sarbani Basu, Rachel Howe, Howe R., Chaplin W.J., Basu S., Ball W.H., Davies G.R., Elsworth Y., Hale S.J., Miglio A., Nielsen M.B., and Viani L.S. more...

Subjects
010504 meteorology & atmospheric sciences, asteroseismology, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Asteroseismology, Spectral line, Photometry (optics), Sun: activity, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, High activity, activity [Sun], helioseismology [Sun], 010303 astronomy & astrophysics, Scaling, Sun: helioseismology, 0105 earth and related environmental sciences, Physics, Astronomy and Astrophysics, Doppler velocity, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Physics::Space Physics, Significant positive correlation, Astrophysics::Earth and Planetary Astrophysics
Abstract

The frequency, $\nu_{\rm max}$, at which the envelope of pulsation power peaks for solar-like oscillators is an important quantity in asteroseismology. We measure $\nu_{\rm max}$ for the Sun using 25 years of Sun-as-a-Star Doppler velocity observations with the Birmingham Solar-Oscillations Network (BiSON), by fitting a simple model to binned power spectra of the data. We also apply the fit to Sun-as-a-Star Doppler velocity data from GONG and GOLF, and photometry data from VIRGO/SPM on the ESA/NASA SOHO spacecraft. We discover a weak but nevertheless significant positive correlation of the solar $\nu_{\rm max}$ with solar activity. The uncovered shift between low and high activity, of $\simeq 25\,\rm \mu Hz$, translates to an uncertainty of 0.8 per cent in radius and 2.4 per cent in mass, based on direct use of asteroseismic scaling relations calibrated to the Sun. The mean $\nu_{\rm max}$ in the different datasets is also clearly offset in frequency. Our results flag the need for caution when using $\nu_{\rm max}$ in asteroseismology., Comment: 6 pages, 4 figures, published in MNRAS Letters, 2020, vol 493, pages L49 - 53 Corrected error in metadata list of authors more...

Published
2020
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5. Minimally invasive surgery techniques in pelvic exenteration: a systematic and meta-analysis review

Author

Srinivasaiah N., Shekleton F., Kelly M. E., Harji D., Malietzis G., Askari A., Aalbers A. G. J., Alberda W., Antoniou A., Austin K. K., Beets G. L., Berg P. L., Beynon J., Bosman S. J., Brunner M., Burger J. W. A., Campain N., Christensen H. K., Coscia M., Colquhoun A. J., Coyne P., Daniels I. R., Davies R. J., de Wilt J. H. W., Denost Q., Deutsch C., Dietz D., Duff M., Eglinton T., Fearnhead N., Frizelle F. A., Garcia-Sabrido J. L., George M. L., Gentilini L., Griffiths B., Harris D. A., Evans M., Heriot A. G., Hohenberger W., Hoe C. M., Holm T., Kanemitsu Y., Chan K. K. L., Kim H., Koh C. E., Kok N. F., Kontovounisios C., Law W. L., Laurberg S., Lee P., Lydrup M. L., Lynch A. C., Martling A., Meijerink J., Mentha A., Merkel S., McDermott F. D., McGrath J. S., Nielsen M. B., Nieuwenhuijzen G. A. P., Nilsson P. J., Abraham-Nordling M., O'Connell P. R., Patsouras D., Poggioli G., Radwan R. W., Rasheed S., Rasmussen P. C., Rothbarth J., Rutten H. J. T., Sagar P. M., Schizas A. M. P., Shida D., Smart N. J., Solomon M. J., Sorensen M. M., Stocchi L., Tekkis P. P., Tsukamoto S., Turner W. H., Tuynman J. B., van Ramshorst G. H., van Zoggel D., Vasquez-Jimenez W., Verhoef C., Verstegen M., Wakeman C., Warrier S., Yip J., Winter D. C., Jenkins J. T., Srinivasaiah N., Shekleton F., Kelly M.E., Harji D., Malietzis G., Askari A., Aalbers A.G.J., Alberda W., Antoniou A., Austin K.K., Beets G.L., Berg P.L., Beynon J., Bosman S.J., Brunner M., Burger J.W.A., Campain N., Christensen H.K., Coscia M., Colquhoun A.J., Coyne P., Daniels I.R., Davies R.J., de Wilt J.H.W., Denost Q., Deutsch C., Dietz D., Duff M., Eglinton T., Fearnhead N., Frizelle F.A., Garcia-Sabrido J.L., George M.L., Gentilini L., Griffiths B., Harris D.A., Evans M., Heriot A.G., Hohenberger W., Hoe C.M., Holm T., Kanemitsu Y., Chan K.K.L., Kim H., Koh C.E., Kok N.F., Kontovounisios C., Law W.L., Laurberg S., Lee P., Lydrup M.L., Lynch A.C., Martling A., Meijerink J., Mentha A., Merkel S., McDermott F.D., McGrath J.S., Nielsen M.B., Nieuwenhuijzen G.A.P., Nilsson P.J., Abraham-Nordling M., O'Connell P.R., Patsouras D., Poggioli G., Radwan R.W., Rasheed S., Rasmussen P.C., Rothbarth J., Rutten H.J.T., Sagar P.M., Schizas A.M.P., Shida D., Smart N.J., Solomon M.J., Sorensen M.M., Stocchi L., Tekkis P.P., Tsukamoto S., Turner W.H., Tuynman J.B., van Ramshorst G.H., van Zoggel D., Vasquez-Jimenez W., Verhoef C., Verstegen M., Wakeman C., Warrier S., Yip J., Winter D.C., and Jenkins J.T. more...

Subjects
Laparoscopic surgery, medicine.medical_specialty, medicine.medical_treatment, 03 medical and health sciences, Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14], 0302 clinical medicine, Minimally invasive surgery, Surgical complication, medicine, Humans, Minimally Invasive Surgical Procedures, Pelvic Neoplasms, Robotic surgery, Neoplasm Staging, Surgical outcome, Pelvic exenteration, business.industry, Patient Selection, Mortality rate, Minimally Invasive Surgical Procedure, Surgery, Outcome and Process Assessment, Health Care, 030220 oncology & carcinogenesis, Relative risk, Meta-analysis, Cohort, 030211 gastroenterology & hepatology, business, Human
Abstract

BACKGROUND: Pelvic exenteration is potentially curative for locally advanced and recurrent pelvic cancers. Evolving technology has facilitated the use of minimally invasive surgical (MIS) techniques in selected cases. We aimed to compare outcomes between open and MIS pelvic exenteration.METHODS: A review of comparative studies was performed. Firstly, we evaluated the differences in surgical techniques with respect to operative time, blood loss, and margin status. Secondly, we assessed differences in 30-day morbidity and mortality rates, and length of hospital stay.RESULTS: Four studies that directly compared open and MIS exenteration were included. Analysis was performed on 170 patients; 78.1% (n = 133) had open pelvic exenteration, while 21.8% (n = 37) had a MIS exenteration. The median age for open exenteration was 57.7 years versus 63 years for MIS exenteration. Even though the operative time for MIS exenteration was 83 min longer (p CONCLUSION: MIS exenteration can be performed in highly selective cases, where there is favourable patient anatomy and tumour characteristics. When feasible, it is associated with reduced intra-operative blood loss, shorter length of hospital stay, and reduced morbidity. more...

Published
2018
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6. EFSUMB Guidelines on Interventional Ultrasound (INVUS), Part I. General Aspects (Short Version)

Author

Lorentzen, T, Nolsoe, C. P., Ewertsen, C., Nielsen, M. B., Leen, E., Havre, R. F., Gritzmann, N., Brkljacic, B., Nürnberg, D., Kabaalioglu, A., Strobel, D., Jenssen, C., Gilja, O. H., Sidhu, P. S., Dietrich, C. F., PISCAGLIA, FABIO, Lorentzen, T, Nolsoe, C.P., Ewertsen, C., Nielsen, M.B., Leen, E., Havre, R.F., Gritzmann, N., Brkljacic, B., Nürnberg, D., Kabaalioglu, A., Strobel, D., Jenssen, C., Piscaglia, F., Gilja, O.H., Sidhu, P.S., and Dietrich, C.F. more...

Subjects
safety, Image-Guided Biopsy, hygiene, ultrasound guidance, Radiology, Nuclear Medicine and Imaging, Germany, microbiology, Biopsy, Needle, Contrast Media, Humans, Ultrasonography, Doppler, guideline, Ultrasonography, Interventional
Abstract

This is the first part of the Guidelines on Interventional Ultrasound of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) and covers all general aspects of ultrasound-guided procedures (short version; the long version is published online). more...

Published
2015