Combined electrical transport and capacitance spectroscopy of a MoS2−LiNbO3{\mathrm{MoS_2-LiNbO_3}} field effect transistor

We have measured both the current-voltage ($I_\mathrm{SD}$-$V_\mathrm{GS}$) and capacitance-voltage ($C$-$V_\mathrm{GS}$) characteristics of a $\mathrm{MoS_2-LiNbO_3}$ field effect transistor. From the measured capacitance we calculate the electron surface density and show that its gate voltage dependence follows the theoretical prediction resulting from the two-dimensional free electron model. This model allows us to fit the measured $I_\mathrm{SD}$-$V_\mathrm{GS}$ characteristics over the \emph{entire range} of $V_\mathrm{GS}$. Combining this experimental result with the measured current-voltage characteristics, we determine the field effect mobility as a function of gate voltage. We show that for our device this improved combined approach yields significantly smaller values (more than a factor of 4) of the electron mobility than the conventional analysis of the current-voltage characteristics only.Comment: to appear in Applied Physics Letter

Observation of Nonspreading Wave Packets in an Imaginary Potential

We propose and experimentally demonstrate a method to prepare a nonspreading atomic wave packet. Our technique relies on a spatially modulated absorption constantly chiseling away from an initially broad de Broglie wave. The resulting contraction is balanced by dispersion due to Heisenberg's uncertainty principle. This quantum evolution results in the formation of a nonspreading wave packet of Gaussian form with a spatially quadratic phase. Experimentally, we confirm these predictions by observing the evolution of the momentum distribution. Moreover, by employing interferometric techniques, we measure the predicted quadratic phase across the wave packet. Nonspreading wave packets of this kind also exist in two space dimensions and we can control their amplitude and phase using optical elements.Comment: 4 figure

Multispecies Storytelling in Intermedial Practices

Multispecies Storytelling in Intermedial Practices is a speculative endeavor asking how we may represent, relay, and read worlds differently by seeing other species as protagonists in their own rights. What other stories are to be invented and told from within those many-tongued chatters of multispecies collectives? Could such stories teach us how to become human otherwise? Often, the human is defined as the sole creature who holds language, and consequently is capable of articulating, representing, and reflecting upon the world. And yet, the world is made and remade by ongoing and many-tongued conversations between various organisms reverberating with sound, movement, gestures, hormones, and electrical signals. Everywhere, life is making itself known, heard, and understood in a wide variety of media and modalities. Some of these registers are available to our human senses, while some are not. Facing a not-so-distant future catastrophe, which in many ways and for many of us is already here, it is becoming painstakingly clear that our imaginaries are in dire need of corrections and replacements. How do we cultivate and share other kinds of stories and visions of the world that may hold promises of modest, yet radical hope? If we keep reproducing the same kind of languages, the same kinds of scientific gatekeeping, the same kinds of stories about “our” place in nature, we remain numb in the face of collapse. Multispecies Storytelling in Intermedial Practices offers steps toward a (self)critical multispecies philosophy which interrogates and qualifies the broad and seemingly neutral concept of humanity utilized in and around conversations grounded within Western science and academia. Artists, activists, writers, and scientists give a myriad of different interpretations of how to tell our worlds using different media – and possibly gives hints as to how to change it, too

MR-guidance in clinical reality: current treatment challenges and future perspectives

Magnetic Resonance-guided radiotherapy (MRgRT) marks the beginning of a new era. MR is a versatile and suitable imaging modality for radiotherapy, as it enables direct visualization of the tumor and the surrounding organs at risk. Moreover, MRgRT provides real-time imaging to characterize and eventually track anatomical motion. Nevertheless, the successful translation of new technologies into clinical practice remains challenging. To date, the initial availability of next-generation hybrid MR-linac (MRL) systems is still limited and therefore, the focus of the present preview was on the initial applicability in current clinical practice and on future perspectives of this new technology for different treatment sites. MRgRT can be considered a groundbreaking new technology that is capable of creating new perspectives towards an individualized, patient-oriented planning and treatment approach, especially due to the ability to use daily online adaptation strategies. Furthermore, MRL systems overcome the limitations of conventional image-guided radiotherapy, especially in soft tissue, where target and organs at risk need accurate definition. Nevertheless, some concerns remain regarding the additional time needed to re-optimize dose distributions online, the reliability of the gating and tracking procedures and the interpretation of functional MR imaging markers and their potential changes during the course of treatment. Due to its continuous technological improvement and rapid clinical large-scale application in several anatomical settings, further studies may confirm the potential disruptive role of MRgRT in the evolving oncological environment

Investment Professionals’ Use of Corporate Social Responsibility Disclosures

We conduct an experiment to examine investment professionals’ use of corporate social responsibility (CSR) disclosures when making personal investment decisions or Investment recommendations to clients. We predict and find that investment professionals are more willing to personally invest and recommend investment to a client when a firm discloses positive CSR performance than when it makes no CSR disclosures. Investment professionals’ decisions and recommendations are influenced by CSR disclosures both because, on average, they believe that better CSR performance results in better current and longer-term financial performance and because they value the societal benefits of CSR activities. We also find that Investment professionals’ general beliefs regarding whether CSR activities benefit society affect how they assess firms’ CSR performance and their view of the relation between CSR performance and financial performance. Finally, investment professionals’ experience appears to protect them from the potential biasing effect of appealing pictures that accompany many CSR disclosures

Investment Professionals’ Use of Corporate Social Responsibility Disclosures

We conduct an experiment to examine investment professionals’ use of corporate social responsibility (CSR) disclosures when making personal investment decisions or Investment recommendations to clients. We predict and find that investment professionals are more willing to personally invest and recommend investment to a client when a firm discloses positive CSR performance than when it makes no CSR disclosures. Investment professionals’ decisions and recommendations are influenced by CSR disclosures both because, on average, they believe that better CSR performance results in better current and longer-term financial performance and because they value the societal benefits of CSR activities. We also find that Investment professionals’ general beliefs regarding whether CSR activities benefit society affect how they assess firms’ CSR performance and their view of the relation between CSR performance and financial performance. Finally, investment professionals’ experience appears to protect them from the potential biasing effect of appealing pictures that accompany many CSR disclosures

German and US Investment Professionals’ Use of Corporate Social Responsibility Disclosures in Their Personal Investment Decisions and Recommendations to Clients

We conduct an experiment to examine investment professionals’ use of corporate social responsibility (CSR) disclosures when making personal investment decisions or investment recommendations to clients. We predict and find that investment professionals are more willing to personally invest and recommend investment to a client when a firm discloses positive CSR performance than when it makes no CSR disclosures. Investment professionals’ decisions and recommendations are influenced by CSR disclosures both because, on average, they believe that better CSR performance results in better current and longer-term financial performance and because they value the societal benefits of CSR activities. We also find that investment professionals’ general beliefs regarding whether CSR activities benefit society affect how they assess firms’ CSR performance and their view of the relation between CSR performance and financial performance. Finally, investment professionals’ experience appears to protect them from the potential biasing effect of appealing pictures that accompany many CSR disclosures

Investment Professionals’ Use of Corporate Social Responsibility Disclosures

We conduct an experiment to examine investment professionals’ use of corporate social responsibility (CSR) disclosures when making personal investment decisions or Investment recommendations to clients. We predict and find that investment professionals are more willing to personally invest and recommend investment to a client when a firm discloses positive CSR performance than when it makes no CSR disclosures. Investment professionals’ decisions and recommendations are influenced by CSR disclosures both because, on average, they believe that better CSR performance results in better current and longer-term financial performance and because they value the societal benefits of CSR activities. We also find that Investment professionals’ general beliefs regarding whether CSR activities benefit society affect how they assess firms’ CSR performance and their view of the relation between CSR performance and financial performance. Finally, investment professionals’ experience appears to protect them from the potential biasing effect of appealing pictures that accompany many CSR disclosures