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1,416 results on '"Puglisi, G."'

204. ALMA Band 3 polarimetric follow-up of a complete sample of faint PACO sources

Author

Galluzzi, V, primary, Puglisi, G, additional, Burkutean, S, additional, Liuzzo, E, additional, Bonato, M, additional, Massardi, M, additional, Paladino, R, additional, Gregorini, L, additional, Ricci, R, additional, Trombetti, T, additional, Toffolatti, L, additional, Burigana, C, additional, Bonaldi, A, additional, Bonavera, L, additional, Casasola, V, additional, De Zotti, G, additional, Ekers, R D, additional, di Serego Alighieri, S, additional, López-Caniego, M, additional, and Tucci, M, additional

Published
2019
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208. Dynamic Deformation of ETNA Volcano Observed by GPS and SAR Interferometry

Author

Lundgren, P, Rosen, P, Webb, F, Tesauro, M, Lanari, R, Sansosi, E, Puglisi, G, Bonforte, A, and Coltelli, M

Subjects
Environment Pollution
Abstract

Synthetic aperture radar (SAR) interferometry and GPS have shown that during the quiescent period from 1993-1995 Mt. Etna volcano, Italy, inflated. Since the initiation of eruptive activity since late 1995 the deformation has been more contentious. We will explore the detailed deformation during the period from 1995-1996 spanning the late stages of inflation and the beginning of eruptive activity. We use SAR interferometry and GPS data to measure the volcano deformation. We invert the observed deformation for both simple point source. le crack elastic sources or if warranted for a spheroidal pressure So In particular, we will examine the evolution of the inflation and the transition to a lesser deflation observed at the end of 1995. We use ERS-1/2 SAR data from both ascending and descending passes to allow for dense temporal 'sampling of the deformation and to allow us to critically assess atmospheric noise. Preliminary results from interferometry suggest that the inflation rate accelerated prior to resumption of activity in 1995, while GPS data suggest a more steady inflation with some fluctuation following the start of activity. This study will compare and contrast the interferometric SAR and GPS results and will address the strengths and weaknesses of each technique towards volcano deformation studies.

Published
1999

211. Introducing distributed solar thermal power in small-scale district heating systems

Author

Zanghirella F, Canonaco J, Puglisi G, Di Pietra B, Per Kvols Heiselberg, Zanghirella, F, Canonaco, J, Puglisi, G, and Di Pietra, B

Subjects
Solar thermal, District heating, District heating, Solar thermal, Distributed generation, Distributed generation
Abstract

District Heating Systems (DHS) connected to distributed solar collectors may contribute in reaching, especially in areas with high population density, the target of 50% of the heat demand for domestic hot water, space heating and cooling provided by renewable sources, which will be mandatory in Italy, from January 1, 2017, for new and deeply renovated buildings. By means of a software platform, developed by the Energy Efficiency Department of ENEA, a small-scale district heating system located in a suburb in the Municipality of Bologna (Italy) and including residential buildings, schools, public buildings and a commercial building and heated by gas boilers was simulated. The introduction, in the simulated DHS, of one or more solar thermal fields integrated on the roofs of the buildings was studied, and sensitivity analysis on the effect of the number and the size of the solar fields on the energy and economic performance of the DHS was carried out. The energy performance of the DHS integrated with the solar fields reaches its optimum in the configuration that maximizes the local self-consumption of the produced solar energy. Using the DHS as a vector to share solar energy, the increase in the thermal losses of the DHS can be considered acceptable in the configurations with a solar production equal to or lower than the domestic heat water loads plus the heat losses of the whole DHS in summer.

Published
2016

212. 'Nose-to-brain delivery of polymeric nanoparticles'

Author

DAL MAGRO, ROBERTA, DONZELLI, ELISABETTA, BALLARINI, ELISA, SANCINI, GIULIO ALFREDO, Musumeci, T, Bonaccorso, A, Puglisi, G, DAL MAGRO, R, Musumeci, T, Bonaccorso, A, Donzelli, E, Ballarini, E, Puglisi, G, and Sancini, G

Subjects
Nanoparticle, BIO/09 - FISIOLOGIA, brain delivery, intranasal administration
Abstract

The difficulties encountered in the treatment of brain diseases with conventional pharmacological tools have created the need for innovative strategies. The combination of nanocarriers and alternative administration routes could represent an efficient approach to reach the brain. Intranasal administration (IN) provides a non-invasive option to deliver drugs to the brain, bypassing the BBB, reducing the first-pass effect and enhancing patient compliance. The objective of the present study was to investigate the biodistribution and bioavailability to the brain of polymeric nanoparticles (PNPs) after IN administration in healthy mice. PNPs were prepared with poly-lactide-co-glycolide polymer using nanoprecipitation method. PNPs had a polymodal distribution around 350 nm. The biodistribution of DiR-loaded PNPs was evaluated by means of 3D fluorescence tomography imaging. Our results show that 3h after a single IN administration, more than 5% of the injected dose was detectable in the brain. PNPs were quickly cleared from the thorax and the abdominal cavity, while the brain fluorescence slowly decreased ranging from 3.7% to 2.3% between 24h and 96h. Repeated IN administrations (2 administrations, 24h apart) provided a significant increment of PNPs-associated fluorescence in the brain, without affecting PNPs accumulation in other organs. These findings support nose-to-brain translocation of PNPs as a noninvasive strategy to enhance the bioavailability of therapeutics to the brain

Published
2016

213. Oxcarbazepine free or loaded PLGA nanoparticles as effective intranasal approach to control epileptic seizures in rodents

Author

Musumeci, T, Serapide, M, Pellitteri, R, Dalpiaz, A, Ferraro, L, Dal Magro, R, Bonaccorso, A, Carbone, C, Veiga, F, Sancini, G, Puglisi, G, Musumeci, Teresa, Serapide, Maria Francesca, Pellitteri, Rosalia, Dalpiaz, Alessandro, Ferraro, Luca, Dal Magro, Roberta, Bonaccorso, Angela, Carbone, Claudia, Veiga, Francisco, Sancini, Giulio, Puglisi, Giovanni, Musumeci, T, Serapide, M, Pellitteri, R, Dalpiaz, A, Ferraro, L, Dal Magro, R, Bonaccorso, A, Carbone, C, Veiga, F, Sancini, G, Puglisi, G, Musumeci, Teresa, Serapide, Maria Francesca, Pellitteri, Rosalia, Dalpiaz, Alessandro, Ferraro, Luca, Dal Magro, Roberta, Bonaccorso, Angela, Carbone, Claudia, Veiga, Francisco, Sancini, Giulio, and Puglisi, Giovanni

Abstract

The brain as a target for drug delivery is a challenge in pharmaceutical research. Among the several proposed strategies, the intranasal route represents a good strategy to deliver drugs to the brain. The goal of this study was to investigate the potential use of oxcarbazepine (OXC) to enhance brain targeting efficiency after intranasal (IN) administration. As well as attempting to use as low a dose as possible to obtain therapeutic effect. Our results showed that, after IN administrations, the dose of OXC that was effective in controlling epileptic seizures was 0.5 mg/kg (1 dose, every 20 min for 1 h) in rodents, confirmed by Cerebral Spinal Fluid (CSF) bioavailability. With the aim of reducing the number of administrations, sustaining drug release and increasing brain targeting, OXC was loaded into poly(lactide-co-glycolide) (PLGA) nanoparticles (NPs). The selected nanoformulation for in vivo studies was obtained re-suspending the freeze-dried and cryo-protected OXC loaded PLGA NPs. The translocation of 1-1′-Dioctadecyl-3,3,3′,3′-tetramethylindotricarbocyanine Iodide loaded PLGA NPs, from nose to the brain, was confirmed by Fluorescence Molecular Tomography, which also evidenced an accumulation of NPs in the brain after repeated IN administrations. IN administrations of OXC loaded PLGA NPs reduced the number of administrations to 1 over 24 h compared to the free drug thus controlling seizures in rats. Immunohistochemical evaluations (anti-neurofilament, anti-beta tubulin, and anti-caspase3) demonstrated a neuroprotective effect of OXC PLGA NPs after 16 days of treatment. These encouraging results confirmed the possibility of developing a novel non-invasive nose to brain delivery system of OXC for the treatment of epilepsy.

Published
2018

214. Development of calibration strategies for the Simons Observatory

Author

Zmuidzinas, J, Gao, JR, Zhu, N, Xu, Z, Salatino, M, Reichardt, C, Puglisi, G, Nati, F, Mcmahon, J, Mauskopf, P, Matsuda, F, Kusaka, A, Koopman, B, Keating, B, Goeckner-Wald, N, Gallardo, P, Fabbian, G, Crowley, K, Chinone, Y, Ali, A, Gerbino, M, Simon, S, Teply, G, Bryan, S, Zhu, Ningfeng, Xu, Zhilei, Salatino, Maria, Reichardt, Christian, Puglisi, Giuseppe, Nati, Federico, McMahon, Jeff, Mauskopf, Philip, Matsuda, Frederick, Kusaka, Akito, Koopman, Brian, Keating, Brian, Goeckner-Wald, Neil, Gallardo, Patricio, Fabbian, Giulio, Crowley, Kevin, Chinone, Yuji, Ali, Amir, Gerbino, Martina, Simon, Sara M., Teply, Grant P., Bryan, Sean A., Zmuidzinas, J, Gao, JR, Zhu, N, Xu, Z, Salatino, M, Reichardt, C, Puglisi, G, Nati, F, Mcmahon, J, Mauskopf, P, Matsuda, F, Kusaka, A, Koopman, B, Keating, B, Goeckner-Wald, N, Gallardo, P, Fabbian, G, Crowley, K, Chinone, Y, Ali, A, Gerbino, M, Simon, S, Teply, G, Bryan, S, Zhu, Ningfeng, Xu, Zhilei, Salatino, Maria, Reichardt, Christian, Puglisi, Giuseppe, Nati, Federico, McMahon, Jeff, Mauskopf, Philip, Matsuda, Frederick, Kusaka, Akito, Koopman, Brian, Keating, Brian, Goeckner-Wald, Neil, Gallardo, Patricio, Fabbian, Giulio, Crowley, Kevin, Chinone, Yuji, Ali, Amir, Gerbino, Martina, Simon, Sara M., Teply, Grant P., and Bryan, Sean A.

Abstract

The Simons Observatory (SO) is a set of cosmic microwave background instruments that will be deployed in the Atacama Desert in Chile. The key science goals include setting new constraints on cosmic inflation, measuring large scale structure with gravitational lensing, and constraining neutrino masses. Meeting these science goals with SO requires high sensitivity and improved calibration techniques. In this paper, we highlight a few of the most important instrument calibrations, including spectral response, gain stability, and polarization angle calibrations. We present their requirements for SO and experimental techniques that can be employed to reach those requirements

Published
2018

216. MODELING ATMOSPHERIC EMISSION for CMB GROUND-BASED OBSERVATIONS

Author

Errard, J, Ade, P, Akiba, Y, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Delabrouille, J, Dobbs, M, Ducout, A, Elleflot, T, Fabbian, G, Feng, C, Feeney, S, Gilbert, A, Goeckner-Wald, N, Halverson, N, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, W, Hori, Y, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, J, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Le Jeune, M, Lee, A, Leitch, E, Leon, D, Linder, E, Matsuda, F, Matsumura, T, Miller, N, Myers, M, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Rebeiz, G, Reichardt, C, Richards, P, Ross, C, Rotermund, K, Schenck, D, Sherwin, B, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, Wilson, B, Yadav, A, Zahn, O, Errard J., Ade P. A. R., Akiba Y., Arnold K., Atlas M., Baccigalupi C., Barron D., Boettger D., Borrill J., Chapman S., Chinone Y., Cukierman A., Delabrouille J., Dobbs M., Ducout A., Elleflot T., Fabbian G., Feng C., Feeney S., Gilbert A., Goeckner-Wald N., Halverson N. W., Hasegawa M., Hattori K., Hazumi M., Hill C., Holzapfel W. L., Hori Y., Inoue Y., Jaehnig G. C., Jaffe A. H., Jeong O., Katayama N., Kaufman J., Keating B., Kermish Z., Keskitalo R., Kisner T., Le Jeune M., Lee A. T., Leitch E. M., Leon D., Linder E., Matsuda F., Matsumura T., Miller N. J., Myers M. J., Navaroli M., Nishino H., Okamura T., Paar H., Peloton J., Poletti D., Puglisi G., Rebeiz G., Reichardt C. L., Richards P. L., Ross C., Rotermund K. M., Schenck D. E., Sherwin B. D., Siritanasak P., Smecher G., Stebor N., Steinbach B., Stompor R., Suzuki A., Tajima O., Takakura S., Tikhomirov A., Tomaru T., Whitehorn N., Wilson B., Yadav A., Zahn O., Errard, J, Ade, P, Akiba, Y, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Delabrouille, J, Dobbs, M, Ducout, A, Elleflot, T, Fabbian, G, Feng, C, Feeney, S, Gilbert, A, Goeckner-Wald, N, Halverson, N, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, W, Hori, Y, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, J, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Le Jeune, M, Lee, A, Leitch, E, Leon, D, Linder, E, Matsuda, F, Matsumura, T, Miller, N, Myers, M, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Rebeiz, G, Reichardt, C, Richards, P, Ross, C, Rotermund, K, Schenck, D, Sherwin, B, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, Wilson, B, Yadav, A, Zahn, O, Errard J., Ade P. A. R., Akiba Y., Arnold K., Atlas M., Baccigalupi C., Barron D., Boettger D., Borrill J., Chapman S., Chinone Y., Cukierman A., Delabrouille J., Dobbs M., Ducout A., Elleflot T., Fabbian G., Feng C., Feeney S., Gilbert A., Goeckner-Wald N., Halverson N. W., Hasegawa M., Hattori K., Hazumi M., Hill C., Holzapfel W. L., Hori Y., Inoue Y., Jaehnig G. C., Jaffe A. H., Jeong O., Katayama N., Kaufman J., Keating B., Kermish Z., Keskitalo R., Kisner T., Le Jeune M., Lee A. T., Leitch E. M., Leon D., Linder E., Matsuda F., Matsumura T., Miller N. J., Myers M. J., Navaroli M., Nishino H., Okamura T., Paar H., Peloton J., Poletti D., Puglisi G., Rebeiz G., Reichardt C. L., Richards P. L., Ross C., Rotermund K. M., Schenck D. E., Sherwin B. D., Siritanasak P., Smecher G., Stebor N., Steinbach B., Stompor R., Suzuki A., Tajima O., Takakura S., Tikhomirov A., Tomaru T., Whitehorn N., Wilson B., Yadav A., and Zahn O.

Abstract

Atmosphere is one of the most important noise sources for ground-based cosmic microwave background (CMB) experiments. By increasing optical loading on the detectors, it amplifies their effective noise, while its fluctuations introduce spatial and temporal correlations between detected signals. We present a physically motivated 3D-model of the atmosphere total intensity emission in the millimeter and sub-millimeter wavelengths. We derive a new analytical estimate for the correlation between detectors time-ordered data as a function of the instrument and survey design, as well as several atmospheric parameters such as wind, relative humidity, temperature and turbulence characteristics. Using an original numerical computation, we examine the effect of each physical parameter on the correlations in the time series of a given experiment. We then use a parametric-likelihood approach to validate the modeling and estimate atmosphere parameters from the polarbear-i project first season data set. We derive a new 1.0% upper limit on the linear polarization fraction of atmospheric emission. We also compare our results to previous studies and weather station measurements. The proposed model can be used for realistic simulations of future ground-based CMB observations.

Published
2015

217. POLARBEAR constraints on cosmic birefringence and primordial magnetic fields

Author

Ade, P, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Dobbs, M, Ducout, A, Dunner, R, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Gilbert, A, Goeckner-Wald, N, Groh, J, Hall, G, Halverson, N, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, W, Hori, Y, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, J, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Kusaka, A, Le Jeune, M, Lee, A, Leitch, E, Leon, D, Li, Y, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Miller, N, Montgomery, J, Myers, M, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Pogosian, L, Poletti, D, Puglisi, G, Raum, C, Rebeiz, G, Reichardt, C, Richards, P, Ross, C, Rotermund, K, Schenck, D, Sherwin, B, Shimon, M, Shirley, I, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Suzuki, A, Suzuki, J, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, Wilson, B, Yadav, A, Zahn, A, Zahn, O, Ade P. A. R., Arnold K., Atlas M., Baccigalupi C., Barron D., Boettger D., Borrill J., Chapman S., Chinone Y., Cukierman A., Dobbs M., Ducout A., Dunner R., Elleflot T., Errard J., Fabbian G., Feeney S., Feng C., Gilbert A., Goeckner-Wald N., Groh J., Hall G., Halverson N. W., Hasegawa M., Hattori K., Hazumi M., Hill C., Holzapfel W. L., Hori Y., Howe L., Inoue Y., Jaehnig G. C., Jaffe A. H., Jeong O., Katayama N., Kaufman J. P., Keating B., Kermish Z., Keskitalo R., Kisner T., Kusaka A., Le Jeune M., Lee A. T., Leitch E. M., Leon D., Li Y., Linder E., Lowry L., Matsuda F., Matsumura T., Miller N., Montgomery J., Myers M. J., Navaroli M., Nishino H., Okamura T., Paar H., Peloton J., Pogosian L., Poletti D., Puglisi G., Raum C., Rebeiz G., Reichardt C. L., Richards P. L., Ross C., Rotermund K. M., Schenck D. E., Sherwin B. D., Shimon M., Shirley I., Siritanasak P., Smecher G., Stebor N., Steinbach B., Suzuki A., Suzuki J. -I., Tajima O., Takakura S., Tikhomirov A., Tomaru T., Whitehorn N., Wilson B., Yadav A., Zahn A., Zahn O., Ade, P, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Dobbs, M, Ducout, A, Dunner, R, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Gilbert, A, Goeckner-Wald, N, Groh, J, Hall, G, Halverson, N, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, W, Hori, Y, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, J, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Kusaka, A, Le Jeune, M, Lee, A, Leitch, E, Leon, D, Li, Y, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Miller, N, Montgomery, J, Myers, M, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Pogosian, L, Poletti, D, Puglisi, G, Raum, C, Rebeiz, G, Reichardt, C, Richards, P, Ross, C, Rotermund, K, Schenck, D, Sherwin, B, Shimon, M, Shirley, I, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Suzuki, A, Suzuki, J, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, Wilson, B, Yadav, A, Zahn, A, Zahn, O, Ade P. A. R., Arnold K., Atlas M., Baccigalupi C., Barron D., Boettger D., Borrill J., Chapman S., Chinone Y., Cukierman A., Dobbs M., Ducout A., Dunner R., Elleflot T., Errard J., Fabbian G., Feeney S., Feng C., Gilbert A., Goeckner-Wald N., Groh J., Hall G., Halverson N. W., Hasegawa M., Hattori K., Hazumi M., Hill C., Holzapfel W. L., Hori Y., Howe L., Inoue Y., Jaehnig G. C., Jaffe A. H., Jeong O., Katayama N., Kaufman J. P., Keating B., Kermish Z., Keskitalo R., Kisner T., Kusaka A., Le Jeune M., Lee A. T., Leitch E. M., Leon D., Li Y., Linder E., Lowry L., Matsuda F., Matsumura T., Miller N., Montgomery J., Myers M. J., Navaroli M., Nishino H., Okamura T., Paar H., Peloton J., Pogosian L., Poletti D., Puglisi G., Raum C., Rebeiz G., Reichardt C. L., Richards P. L., Ross C., Rotermund K. M., Schenck D. E., Sherwin B. D., Shimon M., Shirley I., Siritanasak P., Smecher G., Stebor N., Steinbach B., Suzuki A., Suzuki J. -I., Tajima O., Takakura S., Tikhomirov A., Tomaru T., Whitehorn N., Wilson B., Yadav A., Zahn A., and Zahn O.

Abstract

We constrain anisotropic cosmic birefringence using four-point correlations of even-parity E-mode and odd-parity B-mode polarization in the cosmic microwave background measurements made by the POLARization of the Background Radiation (POLARBEAR) experiment in its first season of observations. We find that the anisotropic cosmic birefringence signal from any parity-violating processes is consistent with zero. The Faraday rotation from anisotropic cosmic birefringence can be compared with the equivalent quantity generated by primordial magnetic fields if they existed. The POLARBEAR nondetection translates into a 95% confidence level (C.L.) upper limit of 93 nanogauss (nG) on the amplitude of an equivalent primordial magnetic field inclusive of systematic uncertainties. This four-point correlation constraint on Faraday rotation is about 15 times tighter than the upper limit of 1380 nG inferred from constraining the contribution of Faraday rotation to two-point correlations of B-modes measured by Planck in 2015. Metric perturbations sourced by primordial magnetic fields would also contribute to the B-mode power spectrum. Using the POLARBEAR measurements of the B-mode power spectrum (two-point correlation), we set a 95% C.L. upper limit of 3.9 nG on primordial magnetic fields assuming a flat prior on the field amplitude. This limit is comparable to what was found in the Planck 2015 two-point correlation analysis with both temperature and polarization. We perform a set of systematic error tests and find no evidence for contamination. This work marks the first time that anisotropic cosmic birefringence or primordial magnetic fields have been constrained from the ground at subdegree scales.

Published
2015

219. A physico-chemical study on amphiphilic cyclodextrin/liposomes nanoassemblies with drug carrier potential.

Author

Musumeci, T., Bonaccorso, A., De Gaetano, F., Larsen, K. L., Pignatello, R., Mazzaglia, A., Puglisi, G., and Ventura, C. A.

Subjects
DIFFERENTIAL scanning calorimetry, MOLE fraction, MOIETIES (Chemistry), BIODEGRADABLE nanoparticles, LIPOSOMES, DRUG carriers
Abstract

In this paper, two medusa-like ACyDs, modified at the primary rim bearing four (ACyD4) and eight carbons (ACyD8) acyl chain length, and one bouquet-like CyD, modified at primary side with thiohexyl and at secondary one with oligoethylene moiety (SC6OH), were investigated for their ability to assemble in nanostructures or to form hybrid dipalmitoylphosphatidylcholine (DPPC)/ACyDs systems. The lipophilicity of these molecules and the different preparation methods used in this study (thin layer evaporation and nanoprecipitation method) significantly affect the aggregation behaviour in aqueous medium. Except for the shortest medusa-like ACyD4, the other ACyDs formed stable nanoaggregates for at least 45 days. The effect of ACyDs on the thermotropic behaviour of DPPC liposomes was also studied by differential scanning calorimetry analysis, thus elucidating their interaction with liposomes to afford hybrid liposome/ACyDs systems. The medusa-like ACyD4 cannot be used to realize nanosystems because it quickly aggregates or it induces a complete destabilization of the liposomes. At the highest concentration investigated (0.01 molar fraction), both ACyD8 and SC6OH interacted with DPPC liposomes, forming ACyD/DPPC or SC6OH/DPPC hybrid vesicular carriers. [ABSTRACT FROM AUTHOR]

Published
2020
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222. A Measurement of the Cosmic Microwave Background $B$-Mode Polarization Power Spectrum at Sub-Degree Scales from 2 years of POLARBEAR Data

Author

Polarbear, The Collaboration, Ade, P. A. R., Aguilar, M., Akiba, Y., Arnold, K., Baccigalupi, C., Barron, D., Beck, D., Bianchini, F., Boettger, D., Borrill, J., Chapman, S., Chinone, Y., Crowley, K., Cukierman, A., Dobbs, M., Ducout, A., Dünner, R., Elleflot, T., Errard, J., Fabbian, G., Feeney, S. M., Feng, C., Fujino, T., Galitzki, N., Gilbert, A., Goeckner-Wald, N., Groh, J., Hamada, T., Hall, G., Halverson, N. W., Hasegawa, M., Hazumi, M., Hill, C., Howe, L., Inoue, Y., Jaehnig, G. C., Jaffe, A. H., Jeong, O., Kaneko, D., Katayama, N., Keating, B., Keskitalo, R., Kisner, T., Krachmalnicoff, N., Kusaka, A., Le Jeune, M., Lee, A. T., Leitch, E. M., Leon, D., Linder, E., Lowry, L., Matsuda, F., Matsumura, T., Minami, Y., Montgomery, J., Navaroli, M., Nishino, H., Paar, H., Peloton, J., Pham, A. T. P., Poletti, D., Puglisi, G., Reichardt, C. L., Richards, P. L., Ross, C., Segawa, Y., Sherwin, B. D., Silva, M., Siritanasak, P., Stebor, N., Stompor, R., Suzuki, A., Tajima, O., Takakura, S., Takatori, S., Tanabe, D., Teply, G. P., Tomaru, T., Carole Tucker, Whitehorn, N., Zahn, A., AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), POLARBEAR, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Institut d'astrophysique spatiale ( IAS ), and Université Paris-Sud - Paris 11 ( UP11 ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS )

Subjects
large-scale structure of universe, cosmological model, Cosmology and Nongalactic Astrophysics (astro-ph.CO), satellite: Planck, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, dark matter: density, cosmic background radiation, gravitation: lens, cosmology: observations, cosmic background radiation: multipole, polarization: power spectrum, High Energy Physics::Experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], statistical, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report an improved measurement of the cosmic microwave background (CMB) $B$-mode polarization power spectrum with the POLARBEAR experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles $500 \leq \ell \leq 2100$, where the dominant $B$-mode signal is expected to be due to the gravitational lensing of $E$-modes. We reject the null hypothesis of no $B$-mode polarization at a confidence of 3.1$\sigma$ including both statistical and systematic uncertainties. We test the consistency of the measured $B$-modes with the $\Lambda$ Cold Dark Matter ($\Lambda$CDM) framework by fitting for a single lensing amplitude parameter $A_L$ relative to the Planck best-fit model prediction. We obtain $A_L = 0.60 ^{+0.26} _{-0.24} ({\rm stat}) ^{+0.00} _{-0.04}({\rm inst}) \pm 0.14 ({\rm foreground}) \pm 0.04 ({\rm multi})$, where $A_{L}=1$ is the fiducial $\Lambda$CDM value, and the details of the reported uncertainties are explained later in the manuscript., Comment: 16 pages, 10 figures. Minor changes to match the published version. For data and figures, see http://bolo.berkeley.edu/polarbear/data/polarbear_BB_2017/

Published
2017

226. Electrical characterization and tuning of the integrated POLARBEAR-2a focal plane and readout (Conference Presentation)

Author

Barron, Darcy, primary, Arnold, Kam, additional, Elleflot, Tucker, additional, Groh, John C., additional, Kaneko, Daisuke, additional, Katayama, Nobuhiko, additional, Lee, Adrian T., additional, Lowry, Lindsay N., additional, Nishino, Haruki, additional, Suzuki, Aritoki, additional, Takatori, Sayuri, additional, Ade, P., additional, Akiba, Y., additional, Ali, A., additional, Aguilar, M., additional, Anderson, A., additional, Ashton, P., additional, Avva, J., additional, Beck, D., additional, Baccigalupi, C., additional, Beckman, S., additional, Bender, A., additional, Bianchini, F., additional, Boettger, D., additional, Borrill, J., additional, Carron, J., additional, Chapman, S., additional, Chinone, Y., additional, Coppi, G., additional, Crowley, K., additional, Cukierman, A., additional, de Haan, T., additional, Dobbs, M., additional, Dunner, R., additional, Errard, J., additional, Fabbian, G., additional, Feeney, S., additional, Feng, C., additional, Fuller, G., additional, Galitzki, N., additional, Gilbert, A., additional, Goeckner-Wald, N., additional, Hamada, T., additional, Halverson, N., additional, Hasegawa, M., additional, Hazumi, M., additional, Hill, C., additional, Holzapfel, W., additional, Howe, L., additional, Inoue, Y., additional, Ito, J., additional, Jaehnig, G., additional, Jeong, O., additional, Keating, B., additional, Keskitalo, R., additional, Kisner, T., additional, Krachmalnicoff, N., additional, Kusaka, A., additional, Le Jeune, M., additional, Leon, D., additional, Linder, E., additional, Lowitz, A., additional, Madurowicz, A., additional, Mak, D., additional, Matsuda, F., additional, Matsumura, T., additional, May, A., additional, Miller, N., additional, Minami, Y., additional, Montgomery, J., additional, Natoli, T., additional, Navroli, M., additional, Peloton, J., additional, Pham, A., additional, Piccirillo, L., additional, Plambeck, D., additional, Poletti, D., additional, Puglisi, G., additional, Raum, C., additional, Rebeiz, G., additional, Reichardt, C., additional, Richards, P., additional, Roberts, H., additional, Ross, C., additional, Rotermund, K., additional, Silva Feaver, Max, additional, Segawa, Y., additional, Sherwin, B., additional, Siritanasak, P., additional, Steinmetz, L., additional, Stompor, R., additional, Tajima, O., additional, Takakura, S., additional, Tanabe, D., additional, Tat, R., additional, Teply, G., additional, Tikhomirov, A., additional, Tomaru, T., additional, Tsai, C., additional, Verges, C., additional, Westbrook, B., additional, Whitehorn, N., additional, and Zahn, A., additional

Published
2018
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229. Making maps of cosmic microwave background polarization for B-mode studies: The POLARBEAR example

Author

Poletti, D, Poletti, D, Fabbian, G, Le Jeune, M, Peloton, J, Arnold, K, Baccigalupi, C, Barron, D, Beckman, S, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Ducout, A, Elleflot, T, Errard, J, Feeney, S, Goeckner-Wald, N, Groh, J, Hall, G, Hasegawa, M, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaffe, AH, Jeong, O, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Kusaka, A, Lee, AT, Leon, D, Linder, E, Lowry, L, Matsuda, F, Navaroli, M, Paar, H, Puglisi, G, Reichardt, CL, Ross, C, Siritanasak, P, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Teply, G, Whitehorn, N, Poletti, D, Poletti, D, Fabbian, G, Le Jeune, M, Peloton, J, Arnold, K, Baccigalupi, C, Barron, D, Beckman, S, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Ducout, A, Elleflot, T, Errard, J, Feeney, S, Goeckner-Wald, N, Groh, J, Hall, G, Hasegawa, M, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaffe, AH, Jeong, O, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Kusaka, A, Lee, AT, Leon, D, Linder, E, Lowry, L, Matsuda, F, Navaroli, M, Paar, H, Puglisi, G, Reichardt, CL, Ross, C, Siritanasak, P, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Teply, G, and Whitehorn, N

Abstract

Analysis of cosmic microwave background (CMB) datasets typically requires some filtering of the raw time-ordered data. For instance, in the context of ground-based observations, filtering is frequently used to minimize the impact of low frequency noise, atmospheric contributions and/or scan synchronous signals on the resulting maps. In this work we have explicitly constructed a general filtering operator, which can unambiguously remove any set of unwanted modes in the data, and then amend the map-making procedure in order to incorporate and correct for it. We show that such an approach is mathematically equivalent to the solution of a problem in which the sky signal and unwanted modes are estimated simultaneously and the latter are marginalized over. We investigated the conditions under which this amended map-making procedure can render an unbiased estimate of the sky signal in realistic circumstances. We then discuss the potential implications of these observations on the choice of map-making and power spectrum estimation approaches in the context of B-mode polarization studies. Specifically, we have studied the effects of time-domain filtering on the noise correlation structure in the map domain, as well as impact it may haveon the performance of the popular pseudo-spectrum estimators. We conclude that although maps produced by the proposed estimators arguably provide the most faithful representation of the sky possible given the data, they may not straightforwardly lead to the best constraints on the power spectra of the underlying sky signal and special care may need to be taken to ensure this is the case. By contrast, simplified map-makers which do not explicitly correct for time-domain filtering, but leave it to subsequent steps in the data analysis, may perform equally well and be easier and faster to implement. We focused on polarization-sensitive measurements targeting the B-mode component of the CMB signal and apply the proposed methods to realistic simula

Published
2017

230. A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of POLARBEAR Data

Author

Ade, PAR, Ade, PAR, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beck, D, Bianchini, F, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Crowley, K, Cukierman, A, Dunner, R, Dobbs, M, Ducout, A, Elleflot, T, Errard, J, Fabbian, G, Feeney, SM, Feng, C, Fujino, T, Galitzki, N, Gilbert, A, Goeckner-Wald, N, Groh, JC, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hazumi, M, Hill, CA, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, AH, Jeong, O, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Krachmalnicoff, N, Kusaka, A, Le Jeune, M, Lee, AT, Leitch, EM, Leon, D, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Minami, Y, Montgomery, J, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Pham, ATP, Poletti, D, Puglisi, G, Reichardt, CL, Richards, PL, Ross, C, Segawa, Y, Sherwin, BD, Silva-Feaver, M, Siritanasak, P, Stebor, N, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Takatori, S, Tanabe, D, Teply, GP, Tomaru, T, Tucker, C, Whitehorn, N, Zahn, A, Ade, PAR, Ade, PAR, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beck, D, Bianchini, F, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Crowley, K, Cukierman, A, Dunner, R, Dobbs, M, Ducout, A, Elleflot, T, Errard, J, Fabbian, G, Feeney, SM, Feng, C, Fujino, T, Galitzki, N, Gilbert, A, Goeckner-Wald, N, Groh, JC, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hazumi, M, Hill, CA, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, AH, Jeong, O, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Krachmalnicoff, N, Kusaka, A, Le Jeune, M, Lee, AT, Leitch, EM, Leon, D, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Minami, Y, Montgomery, J, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Pham, ATP, Poletti, D, Puglisi, G, Reichardt, CL, Richards, PL, Ross, C, Segawa, Y, Sherwin, BD, Silva-Feaver, M, Siritanasak, P, Stebor, N, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Takatori, S, Tanabe, D, Teply, GP, Tomaru, T, Tucker, C, Whitehorn, N, and Zahn, A

Published
2017

231. Forecasting Polarized Radio Sources for CMB observations

Author

Puglisi, G., Galluzzi, V., Bonavera, L., Gonzalez-Nuevo, J., Lapi, A., Massardi, M., Perrotta, F., Baccigalupi, C., Celotti, A., Danese, L., Puglisi, G., Galluzzi, V., Bonavera, L., Gonzalez-Nuevo, J., Lapi, A., Massardi, M., Perrotta, F., Baccigalupi, C., Celotti, A., and Danese, L.

Abstract

We combine the latest datasets obtained with different surveys to study the frequency dependence of polarized emission coming from Extragalactic Radio Sources (ERS). We consider data over a very wide frequency range starting from $1.4$ GHz up to $217$ GHz. This range is particularly interesting since it overlaps the frequencies of the current and forthcoming Cosmic Microwave Background (\cmb) experiments. Current data suggest that at high radio frequencies, ($ \nu \geq 20$ GHz) the fractional polarization of ERS does not depend on the total flux density. Conversely, recent datasets indicate a moderate increase of polarization fraction as a function of frequency, physically motivated by the fact that Faraday depolarization is expected to be less relevant at high radio-frequencies. We compute ERS number counts using updated models based on recent data, and we forecast the contribution of unresolved ERS in CMB polarization spectra. Given the expected sensitivities and the observational patch sizes of forthcoming \cmb\ experiments about $\sim 200 $ ( up to $\sim 2000 $ ) polarized ERS are expected to be detected. Finally, we assess that polarized ERS can contaminate the cosmological B-mode polarization if the tensor-to-scalar ratio is $r< 0.05$ and they have to be robustly controlled to de-lens \cmb\ B-modes at the arcminute angular scales., Comment: 14 pages, 14 figures, 6 tables; AAS received 26th December,2017

Published
2017
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232. A Measurement of the Cosmic Microwave Background $B$-Mode Polarization Power Spectrum at Sub-Degree Scales from 2 years of POLARBEAR Data

Author

The POLARBEAR Collaboration, Ade, P. A. R., Aguilar, M., Akiba, Y., Arnold, K., Baccigalupi, C., Barron, D., Beck, D., Bianchini, F., Boettger, D., Borrill, J., Chapman, S., Chinone, Y., Crowley, K., Cukierman, A., Dobbs, M., Ducout, A., Dünner, R., Elleflot, T., Errard, J., Fabbian, G., Feeney, S. M., Feng, C., Fujino, T., Galitzki, N., Gilbert, A., Goeckner-Wald, N., Groh, J., Hamada, T., Hall, G., Halverson, N. W., Hasegawa, M., Hazumi, M., Hill, C., Howe, L., Inoue, Y., Jaehnig, G. C., Jaffe, A. H., Jeong, O., Kaneko, D., Katayama, N., Keating, B., Keskitalo, R., Kisner, T., Krachmalnicoff, N., Kusaka, A., Jeune, M. Le, Lee, A. T., Leitch, E. M., Leon, D., Linder, E., Lowry, L., Matsuda, F., Matsumura, T., Minami, Y., Montgomery, J., Navaroli, M., Nishino, H., Paar, H., Peloton, J., Pham, A. T. P., Poletti, D., Puglisi, G., Reichardt, C. L., Richards, P. L., Ross, C., Segawa, Y., Sherwin, B. D., Silva-Feaver, M., Siritanasak, P., Stebor, N., Stompor, R., Suzuki, A., Tajima, O., Takakura, S., Takatori, S., Tanabe, D., Teply, G. P., Tomaru, T., Tucker, C., Whitehorn, N., Zahn, A., The POLARBEAR Collaboration, Ade, P. A. R., Aguilar, M., Akiba, Y., Arnold, K., Baccigalupi, C., Barron, D., Beck, D., Bianchini, F., Boettger, D., Borrill, J., Chapman, S., Chinone, Y., Crowley, K., Cukierman, A., Dobbs, M., Ducout, A., Dünner, R., Elleflot, T., Errard, J., Fabbian, G., Feeney, S. M., Feng, C., Fujino, T., Galitzki, N., Gilbert, A., Goeckner-Wald, N., Groh, J., Hamada, T., Hall, G., Halverson, N. W., Hasegawa, M., Hazumi, M., Hill, C., Howe, L., Inoue, Y., Jaehnig, G. C., Jaffe, A. H., Jeong, O., Kaneko, D., Katayama, N., Keating, B., Keskitalo, R., Kisner, T., Krachmalnicoff, N., Kusaka, A., Jeune, M. Le, Lee, A. T., Leitch, E. M., Leon, D., Linder, E., Lowry, L., Matsuda, F., Matsumura, T., Minami, Y., Montgomery, J., Navaroli, M., Nishino, H., Paar, H., Peloton, J., Pham, A. T. P., Poletti, D., Puglisi, G., Reichardt, C. L., Richards, P. L., Ross, C., Segawa, Y., Sherwin, B. D., Silva-Feaver, M., Siritanasak, P., Stebor, N., Stompor, R., Suzuki, A., Tajima, O., Takakura, S., Takatori, S., Tanabe, D., Teply, G. P., Tomaru, T., Tucker, C., Whitehorn, N., and Zahn, A.

Abstract

We report an improved measurement of the cosmic microwave background (CMB) $B$-mode polarization power spectrum with the POLARBEAR experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles $500 \leq \ell \leq 2100$, where the dominant $B$-mode signal is expected to be due to the gravitational lensing of $E$-modes. We reject the null hypothesis of no $B$-mode polarization at a confidence of 3.1$\sigma$ including both statistical and systematic uncertainties. We test the consistency of the measured $B$-modes with the $\Lambda$ Cold Dark Matter ($\Lambda$CDM) framework by fitting for a single lensing amplitude parameter $A_L$ relative to the Planck best-fit model prediction. We obtain $A_L = 0.60 ^{+0.26} _{-0.24} ({\rm stat}) ^{+0.00} _{-0.04}({\rm inst}) \pm 0.14 ({\rm foreground}) \pm 0.04 ({\rm multi})$, where $A_{L}=1$ is the fiducial $\Lambda$CDM value, and the details of the reported uncertainties are explained later in the manuscript., Comment: 16 pages, 10 figures. Minor changes to match the published version. For data and figures, see http://bolo.berkeley.edu/polarbear/data/polarbear_BB_2017

Published
2017
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233. Performance of a continuously rotating half-wave plate on the POLARBEAR telescope

Author

Takakura, S, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beckman, S, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Ducout, A, Elleflot, T, Errard, J, Fabbian, G, Fujino, T, Galitzki, N, Goeckner-Wald, N, Halverson, NW, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaffe, AH, Jeong, O, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Krachmalnicoff, N, Kusaka, A, Lee, AT, Leon, D, Lowry, L, Matsuda, F, Matsumura, T, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Reichardt, CL, Ross, C, Siritanasak, P, Suzuki, A, Tajima, O, Takatori, S, Teply, G, Takakura, S, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beckman, S, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Ducout, A, Elleflot, T, Errard, J, Fabbian, G, Fujino, T, Galitzki, N, Goeckner-Wald, N, Halverson, NW, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaffe, AH, Jeong, O, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Krachmalnicoff, N, Kusaka, A, Lee, AT, Leon, D, Lowry, L, Matsuda, F, Matsumura, T, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Reichardt, CL, Ross, C, Siritanasak, P, Suzuki, A, Tajima, O, Takatori, S, and Teply, G

Published
2017

234. A solar absorption cooling system for greenhouse climate control: technical evaluation

Author

SCHETTINI, Evelia, Blanco I, SCARASCIA MUGNOZZA, Giacomo, Puglisi G, Campiotti C. A, Viola C, VOX, Giuliano, Schettini, Evelia, Blanco, I, SCARASCIA MUGNOZZA, Giacomo, Puglisi, G, Campiotti C., A, Viola, C, and Vox, Giuliano

Subjects
solar cooling, greenhouse microclimate, solar cooling, energy efficiency, greenhouse microclimate, solar energy, renewable energy sources, solar energy, renewable energy sources, energy efficiency
Abstract

It is important to manage the environment inside an horticultural greenhouse in order to guarantee suitable growing condition for the crop, safety condition for the workers and energy savings. Microclimate is influenced by climatic parameters, such as solar radiation, air temperature, relative humidity, and wind speed. Evaporative systems are generally used in warm regions for commercial greenhouse cooling, however such systems require large quantity of water that is often a scarce natural resource in Mediterranean areas. Solar absorption systems can be applied for greenhouse cooling in regions with high values of solar irradiation as alternative to evaporative systems by exploiting renewable energy sources. The solar cooling system could provide significant energy-saving opportunities for cooling greenhouses in hot climates allowing the reduction of electricity and water consumption by exploiting the contemporaneity between the cooling requirements and the solar energy availability. The paper presents the technical considerations on the application of a solar absorption cooling system to a greenhouse in the Mediterranean climatic region. The aim of the research was to define the solar collector surface related to the greenhouse cultivated area and the potential of the system in terms of cooling capacity and energy consuption. The simulation study was realized based on the experimental data collected at the experimental centre of the University of Bari, Southern Italy, in order to control the air temperature of a greenhouse covered with plastic film; the greenhouse was characterized by a surface of 300 m2. The cooling system was designed by adopting suitable technologies of energy saving, in order to reduce cooling energy needs. The designed system consists of an absorption chiller having a cooling capacity of 18 kW fed by 50 m2 of evacuated-tube solar collectors coupled to a new distribution system which provides the cooling power only for the air volume surrounding the crop and not for the whole greenhouse.

Published
2014

235. Technical evaluation for a solar absorption cooling system to be applied for greenhouse climate control

Author

Blanco, I, Vox, G, Scarascia Mugnozza, G, C A, Campiotti, Viola, C, Puglisi, G, Schettini, E., Blanco, I, Vox, Giuliano, SCARASCIA MUGNOZZA, Giacomo, Campiotti C., A, Viola, C, Puglisi, G, and Schettini, Evelia

Subjects
solar cooling, greenhouse microclimate, solar energy, energy efficiency, renewable energy sources, solar energy, solar cooling, energy efficiency, greenhouse microclimate, renewable energy sources
Abstract

The management of the greenhouse environment depends on the manipulation of the climat-ic parameters, such as solar radiation, air temperature, relative humidity and carbon dioxide concentration, in order to guarantee suitable growing condition for the crop, safety condition for the workers and energy savings. Evaporative systems are generally used in warm regions for commercial greenhouse cooling, however such systems require large quantity of water that is often a scarce natural resource in Mediterranean areas. Solar absorption cooling sys-tems can be applied for greenhouse climate control in regions with high values of solar irra-diation as alternative to evaporative systems by exploiting renewable energy sources. The solar cooling system could provide significant energy-saving opportunities for cooling green-houses in hot climates allowing the reduction of electricity and water consumption by exploit-ing the contemporaneity between the cooling requirements and the solar energy availability. The paper presents the technical considerations on the application of a solar absorption cool-ing system to a Mediterranean greenhouse. The aim of the research was to define the poten-tial of the system in terms of energy absorption and the solar collector surface related to the greenhouse cultivated area. The simulation study was realized based on the experimental data collected at the experimental centre of the University of Bari, Southern Italy, in order to control the air temperature of a greenhouse covered with plastic film; the greenhouse was characterized by a surface of 300 m2. The cooling system was designed by adopting suitable technologies of energy saving, in order to reduce cooling energy needs. The designed sys-tem consists of an absorption chiller having a cooling capacity of 18 kW fed by 60 m2 of evacuated-tube solar collectors coupled to a new distribution system which provides the cooling power only for the air volume surrounding the crop and not for the whole greenhouse.

Published
2014

236. Intranasal delivery of polymeric nanoparticles in the rat: An innovative brain targeting strategy for diseases of Central Nervous System

Author

Serapide, Maria Francesca, Musumeci, T., Pellitteri, R., Bonaccorso, A., and Puglisi, G.

Subjects
inorganic chemicals, nanoparticelle, education, technology, industry, and agriculture, somministrazioni intranasali, rat, respiratory system, health care economics and organizations
Abstract

Nose to brain delivery, combining with polymeric nanocarriers (NPs), represents a promising non-invasive strategy to carry molecules into the brain, bypassing blood brain barrier. It's possible to increase the residence time against mucociliar clearance and to prolong the release in the target site, with appropriate NPs. We used spherical NPs with negative surface charge and with a mean size lower 250 nm suitable for nose to brain delivery. To detect the cellular distributions of NPs, a fluorescent neural marker, rhodamine B, was encapsulated into NPs observed on a fluorescence microscope. The aim of this study was to investigate in the rat the brain localization of the fluorescent NPs 8, 24 and 48 h after IN administration. Our data demonstrated that the NPs could be internalized into cells and their internalization was time and region dependent. In fact, within the initial 8 h, many fluorescence NPs were found around the cells. With the extension of time, the intracellular labeled NPs increased with regional differences in the brain. In fact, after 24 h the uptake of labeled NPs was prevalently found in the rostral regions, whereas after 48 h the uptake of the labeled NPs decreased in the rostral and increased in caudal regions of the brain. These findings support the hypothesis that therapeutic agents loaded NPs, utilized in this study, may have a direct access to the brain and can represent a very promising strategy for the diseases of the central nervous system.

Published
2016

237. POLARBEAR-2: An instrument for CMB polarization measurements

Author

Inoue, Y, Ade, P, Akiba, Y, Aleman, C, Arnold, K, Baccigalupi, C, Barch, B, Barron, D, Bender, A, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, De Haan, T, Dobbs, MA, Ducout, A, Dunner, R, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Fuller, G, Gilbert, AJ, Goeckner-Wald, N, Groh, J, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, WL, Hori, Y, Howe, L, Irie, F, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, JP, Kazemzadeh, K, Keating, BG, Kermish, Z, Keskitalo, R, Kisner, TS, Kusaka, A, Le Jeune, M, Lee, AT, Leon, D, Linder, EV, Lowry, L, Matsuda, F, Matsumura, T, Miller, N, Mizukami, K, Montgomery, J, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Raum, CR, Rebeiz, GM, Reichardt, CL, Richards, PL, Ross, C, Rotermund, KM, and Segawa, Y

Subjects
Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics
Abstract

© 2016 SPIE. POLARBEAR-2 (PB-2) is a cosmic microwave background (CMB) polarization experiment that will be located in the Atacama highland in Chile at an altitude of 5200 m. Its science goals are to measure the CMB polarization signals originating from both primordial gravitational waves and weak lensing. PB-2 is designed to measure the tensor to scalar ratio, r, with precision σ(r) > 0:01, and the sum of neutrino masses, Σmz, with σ(Σmv) < 90 meV. To achieve these goals, PB-2 will employ 7588 transition-edge sensor bolometers at 95 GHz and 150 GHz, which will be operated at the base temperature of 250 mK. Science observations will begin in 2017.

Published
2016

238. Effect of ferulic acid-loaded nanostructured lipid carriers on tissue transglutaminase overexpression in human glioblastoma cell lines

Author

Carbone C., Campisi A., Dell'Albani P., Bonfanti R., Spatuzza M., Musumeci T., Lauro M.R., Bonaccorso A., Pignatello R., and Puglisi G.

Subjects
transglutaminase, nanostructured lipid carriers, glioblastoma, apoptosis, Ferulic acid, neoplasms, nervous system diseases
Abstract

In the U87-MG glioma cell line we assessed the effect of unloaded/NLC-loaded FA on the TG2-mediated apoptotic pathway activation, and cell cycle progression.

Published
2016

239. POLARBEAR constraints on cosmic birefringence and primordial magnetic fields

Author

Ade, PAR, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Dobbs, M, Ducout, A, Dunner, R, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Gilbert, A, Goeckner-Wald, N, Groh, J, Hall, G, Halverson, NW, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, WL, Hori, Y, Howe, L, Inoue, Y, Jaehnig, GC, Jaffe, AH, Jeong, O, Katayama, N, Kaufman, JP, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Kusaka, A, Le Jeune, M, Lee, AT, Leitch, EM, Leon, D, Li, Y, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Miller, N, Montgomery, J, Myers, MJ, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Pogosian, L, Poletti, D, Puglisi, G, Raum, C, Rebeiz, G, Reichardt, CL, Richards, PL, Ross, C, Rotermund, KM, Schenck, DE, Sherwin, BD, Shimon, M, Shirley, I, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Suzuki, A, Suzuki, JI, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, and Wilson, B

Subjects
Astrophysics::Cosmology and Extragalactic Astrophysics
Abstract

© 2015 American Physical Society. We constrain anisotropic cosmic birefringence using four-point correlations of even-parity E-mode and odd-parity B-mode polarization in the cosmic microwave background measurements made by the POLARization of the Background Radiation (POLARBEAR) experiment in its first season of observations. We find that the anisotropic cosmic birefringence signal from any parity-violating processes is consistent with zero. The Faraday rotation from anisotropic cosmic birefringence can be compared with the equivalent quantity generated by primordial magnetic fields if they existed. The POLARBEAR nondetection translates into a 95% confidence level (C.L.) upper limit of 93 nanogauss (nG) on the amplitude of an equivalent primordial magnetic field inclusive of systematic uncertainties. This four-point correlation constraint on Faraday rotation is about 15 times tighter than the upper limit of 1380 nG inferred from constraining the contribution of Faraday rotation to two-point correlations of B-modes measured by Planck in 2015. Metric perturbations sourced by primordial magnetic fields would also contribute to the B-mode power spectrum. Using the POLARBEAR measurements of the B-mode power spectrum (two-point correlation), we set a 95% C.L. upper limit of 3.9 nG on primordial magnetic fields assuming a flat prior on the field amplitude. This limit is comparable to what was found in the Planck 2015 two-point correlation analysis with both temperature and polarization. We perform a set of systematic error tests and find no evidence for contamination. This work marks the first time that anisotropic cosmic birefringence or primordial magnetic fields have been constrained from the ground at subdegree scales.

Published
2015

240. LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization

Author

Lystrup, Makenzie, Perrin, Marshall D., Hazumi, M., Ade, P.A.R., Adler, A., Allys, E., Arnold, K., Auguste, D., Aumont, J., Aurlien, R., Austermann, J., Baccigalupi, C., Banday, A. J., Banjeri, R., Barreiro, R. B., Basak, S., Beall, J., Beck, D., Beckman, S., Bermejo, J., de Bernardis, P., Bersanelli, M., Bonis, J., Borrill, J., Boulanger, F., Bounissou, S., Brilenkov, M., Brown, M., Bucher, M., Calabrese, E., Campeti, P., Carones, A., Casas, F. J., Challinor, A., Chan, V., Cheung, K., Chinone, Y., Cliche, J. F., Colombo, L., Columbro, F., Cubas, J., Cukierman, A., Curtis, D., D'Alessandro, G., Dachlythra, N., De Petris, M., Dickinson, C., Diego-Palazuelos, P., Dobbs, M., Dotani, T., Duband, L., Duff, S., Duval, J. M., Ebisawa, K., Elleflot, T., Eriksen, H. K., Errard, J., Essinger-Hileman, T., Finelli, F., Flauger, R., Franceschet, C., Fuskeland, U., Galloway, M., Ganga, K., Gao, J. R., Genova-Santos, R., Gerbino, M., Gervasi, M., Ghigna, T., Gjerløw, E., Gradziel, M. L., Grain, J., Grupp, F., Gruppuso, A., Gudmundsson, J. E., de Haan, T., Halverson, N. W., Hargrave, P., Hasebe, T., Hasegawa, M., Hattori, M., Henrot-Versillé, S., Herman, D., Herranz, D., Hill, C. A., Hilton, G., Hirota, Y., Hivon, E., Hlozek, R. A., Hoshino, Y., de la Hoz, E., Hubmayr, J., Ichiki, K., Iida, T., Imada, H., Ishimura, K., Ishino, H., Jaehnig, G., Kaga, T., Kashima, S., Katayama, N., Kato, A., Kawasaki, T., Keskitalo, R., Kisner, T., Kobayashi, Y., Kogiso, N., Kogut, A., Kohri, K., Komatsu, E., Komatsu, K., Konishi, K., Krachmalnicoff, N., Kreykenbohm, I., Kuo, C. L., Kushino, A., Lamagna, L., Lanen, J. V., Lattanzi, M., Lee, A. T., Leloup, C., Levrier, F., Linder, E., Louis, T., Luzzi, G., Maciaszek, T., Maffei, B., Maino, D., Maki, M., Mandelli, S., Martinez-Gonzalez, E., Masi, S., Matsumura, T., Mennella, A., Migliaccio, M., Minami, Y., Mitsuda, K., Montgomery, J., Montier, L., Morgante, G., Mot, B., Murata, Y., Murphy, J. A., Nagai, M., Nagano, Y., Nagasaki, T., Nagata, R., Nakamura, S., Namikawa, T., Natoli, P., Nerval, S., Nishibori, T., Nishino, H., Noviello, F., O'Sullivan, C., Ogawa, H., Ogawa, H., Oguri, S., Ohsaki, H., Ohta, I. S., Okada, N., Okada, N., Pagano, L., Paiella, A., Paoletti, D., Patanchon, G., Peloton, J., Piacentini, F., Pisano, G., Polenta, G., Poletti, D., Prouvé, T., Puglisi, G., Rambaud, D., Raum, C., Realini, S., Reinecke, M., Remazeilles, M., Ritacco, A., Roudil, G., Rubino-Martin, J. A., Russell, M., Sakurai, H., Sakurai, Y., Sandri, M., Sasaki, M., Savini, G., Scott, D., Seibert, J., Sekimoto, Y., Sherwin, B., Shinozaki, K., Shiraishi, M., Shirron, P., Signorelli, G., Smecher, G., Stever, S., Stompor, R., Sugai, H., Sugiyama, S., Suzuki, A., Suzuki, J., Svalheim, T. L., Switzer, E., Takaku, R., Takakura, H., Takakura, S., Takase, Y., Takeda, Y., Tartari, A., Taylor, E., Terao, Y., Thommesen, H., Thompson, K. L., Thorne, B., Toda, T., Tomasi, M., Tominaga, M., Trappe, N., Tristram, M., Tsuji, M., Tsujimoto, M., Tucker, C., Ullom, J., Vermeulen, G., Vielva, P., Villa, F., Vissers, M., Vittorio, N., Wehus, I., Weller, J., Westbrook, B., Wilms, J., Winter, B., Wollack, E. J., Yamasaki, N. Y., Yoshida, T., Yumoto, J., Zannoni, M., and Zonca, A.

Published
2020
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