Initial trail results of a magnetic biosensor for the rapid detection of Porcine Reproductive and Respiratory Virus (PRRSV) infection

© 2019 The resonant coil magnetometer quantifies paramagnetic particles (PMPs) and has been used to develop magneto-immunoassays in a range of formats. The advantage of magneto-immunoassays is that they are relatively inexpensive, portable, easy to perform and give results in under 5 min. Porcine Reproductive and Respiratory Virus (PRRSV) is an infection of domesticated pigs producing large economic losses in the swine industry current diagnosis is performed using commercially available ELISA kits. Here we describe the development of a competitive magneto-immunoassay (MIA) and pilot study with porcine serum samples. The data show that this technology has the potential for use as a rapid and portable in field system for the detection of antibodies in porcine serum to PRRSV. A range of assay parameters and magnetometer settings were optimised, including the concentration of antibody conjugated PMPs used in the assay and movement of an external magnet to pull particles to a sensor surface. PRRSV positive control serum demonstrated competition with antibody conjugated PMPs with a dose dependent relationship. The magneto-immunoassay developed showed good agreement with the PRRS IDEXX X3 ELISA. The PRRSV magneto-immunoassay demonstrated a sensitivity of 73% and specificity of 100%. The results suggest that a rapid assay using the magnetometer technology detects specific anti-PRRSV antibody in pig serum. The magneto-immunoassay is suitable for use as a rapid ‘on-site’ method for the serological detection of PRRSV infection

Theory of radiation pressure on magneto–dielectric materials

We present a classical linear response theory for a magneto–dielectric material and determine the polariton dispersion relations. The electromagnetic field fluctuation spectra are obtained and polariton sum rules for their optical parameters are presented. The electromagnetic field for systems with multiple polariton branches is quantized in three dimensions and field operators are converted to 1–dimensional forms appropriate for parallel light beams. We show that the field–operator commutation relations agree with previous calculations that ignored polariton effects. The Abraham (kinetic) and Minkowski (canonical) momentum operators are introduced and their corresponding single–photon momenta are identified. The commutation relations of these and of their angular analogues support the identification, in particular, of the Minkowski momentum with the canonical momentum of the light. We exploit the Heaviside–Larmor symmetry of Maxwell's equations to obtain, very directly, the Einsetin–Laub force density for action on a magneto–dielectric. The surface and bulk contributions to the radiation pressure are calculated for the passage of an optical pulse into a semi–infinite sample

Prospectus, October 26, 1973

STAFF PROFILES; Trustees Welcome Stugo President Kendricks To Board; Chills Highlight Haunted House; Only Two Of Seven Amendments Pass, Original Report Incorrect; Prospectus In Perspective: Impeachment Now; The Short Circuit; Cruisin\u27 \u2773; Senator Hulsizer Asks For Student Involvement; Letters From Our Readers; To the Faculty of Parkland College; Bowling Bulletin Board; Death By Hunger; TARGET Explained At Open House; Behind The Books; Scott I Deal With The Issues ; Human Development Seminar Slated; The History Of The Controversial Film - Salt Of The Earth ; S.W.A.M.P. Not A Fad; News Bulletin; Allman Bros. Come Through On Brothers and Sisters; Johnson We Take The Student Where He Is, and Build On That ; Campus Continues To Be Completed; Pre-Registration Additional Info; Mutt and Mortie; Leaders To Meet At Allerton This Saturday, Sunday; Debaters Shows Strength At Bradley Tourney; Health Center Free Clinic; Day Senators Outline Platforms; Slave Auction, Dance Today; President Releases Tapes; Marshall Wins PCFW Scholarship; A\u27s Repeat As World Champs, Dump N.Y. Mets In Seven Games; Wrist-Wrestling, Frisbie Contests To Be Held Soon; Monday\u27s Coach; Harriers Lose Flores Burnette, Will Run In Region IV Finals On Saturday, October 26; Fast Freddy\u27s Football Forecast; Fast Freddy Pays In Cash, Too; Female Winner Of Fast Freddy; Classified Ads; Champaign To Pick Up Leaves; Masters\u27 \u27Spoon River\u27 Comes To Parkland; A Column By And For Women; What The Signs Say; W. Virginia U. Hires Attorney; Who Will Listen?; Final Exam Schedule - Fall Quarter; Callboard; Sharing Group Recommends Eighthttps://spark.parkland.edu/prospectus_1973/1003/thumbnail.jp

Prospectus, November 9, 1973

FORD - OUR NEXT PRESIDENT?; Faculty, Staff Evaluations Adopted As College Policy; Fellowships For Women Announced; Student Senate Vice-President Resigns Post; Debaters Take Third At IVC Meet; Vandalism Suspected In Fire; Parkland To Participate In Conference; Declaration Of Impeachment; Prospectus In Perspective; Letters From Our Readers; Student Opinion Survey; President\u27s Comment; The Short Circuit; Behind The Books; Counselors And Question Marks; Zindars Shares Her Experiences; $6 Bid Tops In Vets Dance, Slave-Auction; UFO\u27s: Citizens Vs. Air Force; The Pinkertons Are At Parkland; Allied Health Program; November Student Activities Parkland College; American Assoc. Of Univ. Women Host General Meeting Nov. 11; Peterson Addresses Phi Beta Lambda; PLATO Popular With Students, Teachers; Cycle Mishap Injures One; Road Rally; Mutt and Mortie; Evening Program Diversified Next Quarter At P/C; Geology Flight Delayed; Final Exam Schedule - Fall Quarter; Costs At School Dominate P.C.A. Senate Meeting; \u27Passion Play\u27 Not Dull; P/C Gen. Biology-Pollution, Genetics Other Relevant Topics; No Grease-Monkey Graduatess At Parkland; Campus Leaders Exchange Ideas at Allerton Meeting; Parkland Co-Hosts Veterans Conference; TB Examinations; Classified Ads; A Column By And For Women: Originality, The Cell; Monday\u27s Coach; Jim Redman, Jane Hawthorne Grab Parkland\u27s First Road Rally; Football Finals To Be Held Tuesday; Fast Freddy\u27s Football Forecast; WVLJ Plans Broadcasts Of PC Basketball; Thompson Wins Fast Freddy As Upsets Abound; Local Volunteer Suggests Grants; Lost And Found; Earle, Seger Go To N.J.C.A.A. Nationals; Parkland Cagers Start Practice For Nov. 29 Debut With Millikin; Wrestlers Open Workouts, Seven Spots Open On 10-Man Roster; Parkland College Basketball Schedule 1973-74; Parkland College Wrestling Schedule 1973-74; Bowing Bulletin Board; Callboard; Changes In Calendar, Staff Status, Registration Proposed; Cade Re-elected Board Chairmanhttps://spark.parkland.edu/prospectus_1973/1002/thumbnail.jp

Prospectus, September 28, 1973

OVERWHELMING RESPONSE TO ACTIVITIES WEEK; Four File Petitions For Senator; Variety Talent Needed For October Show; David Stanley Named To Head Parkland Prospectus Staff; Reactions To New Drinking Law; Toy For Kids And War; Guest Editorial; Prospectus In Perspective: Student President\u27s Report; Boycott Non-Union Lettuce; Roving Counselors New Addition To FSM Centers; Lake: \u27Energy...Essence of Art\u27; Walker Defends Positions On Schools, Lakes; Board Approves Operating Budget; New Faculty Members; Counselors\u27 Schedule For FSM; Prospectus Plan Presented To Board Members; Want To Sing, Swing, Play?; Students Find Voice In College Government; Candidates Draft Platforms, Elections On Oct. 10-11; Black Art/Poetry; Dental Services Free To Students; Audubon Society Opens Season; Monday\u27s Coach; Hustler Is Hustled As King Wins Crown; Outreach Program To Bridge Gap; \u27A Quarter\u27s Worth\u27 Selects Editor; Mailer To Lecture At River Forest; Mike Scruggs Wins Football Contest; Road Rally & Sports Car Club; Earle Grabs Successive Cross Country Titles; Linksmen Seventh In Golf Opener; Touch Football Gets Underway, Intramurals In Full Swing; Trucker\u27s Lead Bowling League; Fast Freddy\u27s Football Forecast; Carlin Social Parody Blows Mind; Mutt and Mortie; Board Discusses Student Rep; Dear Mr. Secretary; Explicit Needs Fulfilled By Black Groups; The Short Circuit; Letters From Our Readers; Debate Competition Opens Against Western Illinois; Classified Ads; Faculty Wives Outline Programs; Program List For 1973-74; LRC Ready For Students; Rosh Hashanah Signals Start Of Jewish Holidays; Callboard; I. E. Team Plans Intercollegiate Competition; Krannert Art Center Schedule; Staff Requests News Releaseshttps://spark.parkland.edu/prospectus_1973/1005/thumbnail.jp

Prospectus, October 12, 1973

AGNEW RESIGNS VICE-PRESIDENCY; Small Turnout For Election; Prospectus Editors Announced; Walk Attracts Over 600; All Amendments Pass; Prospectus In Perspective: Excellent Bike Path Choice, Letters From Our Readers, New Magazine Coming, At this point in time.....; The Short Circuit; Drama Department Introduces New Lounge Theatre; United Way Campaign Begins; Announces $19,290 Bog Award; Ieardi Headlines Talent Program; Road Rally Club; New Breed of Businessman: Young College Graduate; Student Appointed As Board Member; New Concept For P/C Typing Classes; New Name, Faces For Magazine; Parkland Team To Debate At Bradley Oct. 20; Parkland Instructor Hospitalized at Mercy; PCA Appoints Student Affairs Committee Members; C-U Politics To Be Discussed At Forum; Walk For Mankind; Parkland Announces Bike Rules; Student Senate Reviews Charters, Future Plans; Gayle Wright Chosen To Advise Capstone; Vet\u27s Outreach Aids Readjustment; Prospectus Gains Two Campus Cartoonists; Seminar Planned On \u27Volunteering\u27; P/C Biologists At IACCB Convention; \u27Siege\u27 Shocking, Relevant Film; Faculty Members To Hold Offices; Winter Registration Information; Parkland Student Wins Santa Fe Scholarship; Birthday Wishes; Pre-Registration Benefits All; Target Program To Sponsor Open House; Women Voters Begin Sale Of ERA Bracelet; Ferlinghetti Sues San Francisco Police; Applications Must Be Filed; A Column By And For Women: Born To Be A Woman, The Way It Used To Be, The Lib, I Am Woman; Mutt and Mortie; Fast Freddy\u27s Football Forecast; Fall Intramural; Bowling Bulletin Board; Football Results; Dennis Bailen Wins Fast Freddy; Monday\u27s Coach; Rugby Play Not Football; Harriers Slump To Third, Fourth; Hiser Receives Babe Ruth Award; Graduation; TARGET Sets Sights On Juveniles; Classified Ads; Johnson Calls For Truth, Integrity; Gammon: \u27Everyone Born With Ability\u27; Student President\u27s Report; Lives Changed By Jesus Christ; Cruisin\u27 \u2773; Candidates Learn Voting Procedure; Speleunkers Travel Virgin Paths; Krannert Art Center Schedule; Illini Student Union Movies; Lab Develops Self-Study Habits; Callboard; Race To Fund Town With Doctor; Council Member Proposes Later Bar Hourshttps://spark.parkland.edu/prospectus_1973/1004/thumbnail.jp

Fractionation of parietal function in bistable perception probed with concurrent TMS-EEG

When visual input has conflicting interpretations, conscious perception can alternate spontaneously between these possible interpretations. This is called bistable perception. Previous neuroimaging studies have indicated the involvement of two right parietal areas in resolving perceptual ambiguity (ant-SPLr and post-SPLr). Transcranial magnetic stimulation (TMS) studies that selectively interfered with the normal function of these regions suggest that they play opposing roles in this type of perceptual switch. In the present study, we investigated this fractionation of parietal function by use of combined TMS with electroencephalography (EEG). Specifically, while participants viewed either a bistable stimulus, a replay stimulus, or resting-state fixation, we applied single pulse TMS to either location independently while simultaneously recording EEG. Combined with participant’s individual structural magnetic resonance imaging (MRI) scans, this dataset allows for complex analyses of the effect of TMS on neural time series data, which may further elucidate the causal role of the parietal cortex in ambiguous perception

Trapped in the prison of the mind: notions of climate-induced (im)mobility decision-making and wellbeing from an urban informal settlement in Bangladesh

The concept of Trapped Populations has until date mainly referred to people ‘trapped’ in environmentally high-risk rural areas due to economic constraints. This article attempts to widen our understanding of the concept by investigating climate-induced socio-psychological immobility and its link to Internally Displaced People’s (IDPs) wellbeing in a slum of Dhaka. People migrated here due to environmental changes back on Bhola Island and named the settlement Bhola Slum after their home. In this way, many found themselves ‘immobile’ after having been mobile—unable to move back home, and unable to move to other parts of Dhaka, Bangladesh, or beyond. The analysis incorporates the emotional and psychosocial aspects of the diverse immobility states. Mind and emotion are vital to better understand people’s (im)mobility decision-making and wellbeing status. The study applies an innovative and interdisciplinary methodological approach combining Q-methodology and discourse analysis (DA). This mixed-method illustrates a replicable approach to capture the complex state of climate-induced (im)mobility and its interlinkages to people’s wellbeing. People reported facing non-economic losses due to the move, such as identity, honour, sense of belonging and mental health. These psychosocial processes helped explain why some people ended up ‘trapped’ or immobile. The psychosocial constraints paralysed them mentally, as well as geographically. More empirical evidence on how climate change influences people’s wellbeing and mental health will be important to provide us with insights in how to best support vulnerable people having faced climatic impacts, and build more sustainable climate policy frameworks

Attitude toward contraception and abortion among Curaçao women. Ineffective contraception due to limited sexual education?

Background In Curaçao is a high incidence of unintended pregnancies and induced abortions. Most of the induced abortions in Curaçao are on request of the woman and performed by general practitioners. In Curaçao, induced abortion is strictly prohibited, but since 1999 there has been a policy of connivance. We present data on the relevance of economic and socio-cultural factors for the high abortion-rates and the ineffective use of contraception. Methods Structured interviews to investigate knowledge and attitudes toward sexuality, contraception and abortion and reasons for ineffective use of contraceptives among women, visiting general practitioners. Results Of 158 women, 146 (92%) participated and 82% reported that their education on sexuality and about contraception was of good quality. However 'knowledge of reliable contraceptive methods' appeared to be - in almost 50% of the cases - false information, misjudgements or erroneous views on the chance of getting pregnant using coitus interruptus and about the reliability and health effects of oral contraceptive pills. Almost half of the interviewed women had incorrect or no knowledge about reliability of condom use and IUD. 42% of the respondents risked by their behavior an unplanned pregnancy. Most respondents considered abortion as an emergency procedure, not as contraception. Almost two third experienced emotional, physical or social problems after the abortion. Conclusions Respondents had a negative attitude toward reliable contraceptives due to socio-cultural determined ideas about health consequences and limited sexual education. Main economic factors were costs of contraceptive methods, because most health insurances in Curaçao do not cover contraceptives. To improve the effective use of reliable contraceptives, more adequate information should be given, targeting the wrong beliefs and false information. The government should encourage health insurance companies to reimburse contraceptives. Furthermore, improvement of counseling during the abortion procedure is important

Quantum entanglement for systems of identical bosons: I. General features

These two accompanying papers are concerned with two mode entanglement for systems of identical massive bosons and the relationship to spin squeezing and other quantum correlation effects. Entanglement is a key quantum feature of composite systems in which the probabilities for joint measurements on the composite sub-systems are no longer determined from measurement probabilities on the separate sub-systems. There are many aspects of entanglement that can be studied. This two-part review focuses on the meaning of entanglement, the quantum paradoxes associated with entangled states, and the important tests that allow an experimentalist to determine whether a quantum state—in particular, one for massive bosons is entangled. An overall outcome of the review is to distinguish criteria (and hence experiments) for entanglement that fully utilize the symmetrization principle and the super-selection rules that can be applied to bosonic massive particles. In the first paper (I), the background is given for the meaning of entanglement in the context of systems of identical particles. For such systems, the requirement is that the relevant quantum density operators must satisfy the symmetrization principle and that global and local super-selection rules prohibit states in which there are coherences between differing particle numbers. The justification for these requirements is fully discussed. In the second quantization approach that is used, both the system and the sub-systems are modes (or sets of modes) rather than particles, particles being associated with different occupancies of the modes. The definition of entangled states is based on first defining the non-entangled states—after specifying which modes constitute the sub-systems. This work mainly focuses on the two mode entanglement for massive bosons, but is put in the context of tests of local hidden variable theories, where one may not be able to make the above restrictions. The review provides the detailed arguments necessary for the conclusions of a recent paper, where the question of how to rigorously demonstrate the entanglement of a two-mode Bose–Einstein condensate (BEC) has been examined. In the accompanying review paper (II), we consider spin squeezing and other tests for entanglement that have been proposed for two-mode bosonic systems. We apply the approach of review (I) to determine which tests, and which modifications of the tests, are useful for detecting entanglement in massive bosonic (BEC), as opposed to photonic, systems. Several new inequalities are derived, a theory for the required two-mode interferometry is presented, and key experiments to date are analyzed