- Research Article
- 10.1016/j.sbsr.2025.100943
Engineering an olfactory biosensor for preferential monitoring medium-chain fatty acids in wastewater
- Feb 01, 2026
- Sensing and Bio-Sensing Research
- Yingjian Liu + 5 more +5
Publications from 2021 to 2026
Showing 10 of 74 papers
Engineering an olfactory biosensor for preferential monitoring medium-chain fatty acids in wastewater
Evaluating Deception Theories for Applicability to Cyber Operations
Deception is essential to and inherent in cyber operations of all kinds. In defensive cyber operations, deception is the third line of defence after authentication and access control. Deception can be supported by intrusion detection systems monitoring for suspicious activity. Honeypots are the most obvious technique for misleading intruders, but delaying execution of commands, giving false excuses, and lying about the results may be more effective in some circumstances. Proactive defences also depend on deception. In offensive cyber operations, the attacker may manipulate someone to gain information. He/she may masquerade as an authorised user to access the target system or escalate privileges, install a rootkit to conceal his/her actions, bypass access control by installing a back door, or exfiltrate collected data within normal traffic. There is a wealth of theories of deception, overwhelmingly based on the physical world. Some theories are generic, others are specific to military operations, but few are specific to cyber deception. Some focus on the entities involved, while others focus on the deception process, which itself may be organisational or psychological. Several authors warn that analogies drawn from the physical environment may be counterintuitive in cyberspace. As Miller, Brickey and Conti (2012) memorably express it: “weapons can be reproduced instantly, ‘bullets’ travel at near the speed of light, destroyed targets can be brought back from the dead, and a seventeen year old can command an army”. This warning also applies to deception theory. The purpose of this paper is to evaluate key theories of deception for applicability to cyber operations in a multi-domain environment. There are five chapters. After the Introduction, Chapter 2 summarises relevant theory and doctrine. Chapter 3 summarises seven key theories of deception. Chapter 4 evaluates them, and outlines an ideal theory. Finally, Chapter 5 draws conclusions and recommends further work.
Read moreInterprofessional Approaches to the Treatment of Mild Traumatic Brain Injury: A Literature Review and Conceptual Framework Informed by 94 Professional Interviews
Background/Objectives: Mild traumatic brain injury (mTBI) presents with persistent, heterogeneous symptoms requiring multifaceted care. Although interdisciplinary rehabilitation is increasingly recommended, implementation remains inconsistent. This study aimed to synthesize existing literature and clinician perspectives to construct a practice-informed conceptual framework for interprofessional mTBI rehabilitation. Methods: Structured interviews were conducted with 94 clinicians—including neurologists, neuropsychologists, optometrists, occupational and physical therapists, speech-language pathologists, neurosurgeons, and case managers—across academic, private, and community settings in the United States. Interviews followed a semi-structured format adapted for the NIH I-Corps program and were analyzed thematically alongside existing rehabilitation literature. Results: Clinicians expressed strong consensus on the value of function-oriented, patient-centered care. Key themes included the prevalence of persistent cognitive and visual symptoms, emphasis on real-world goal setting, and barriers such as fragmented communication, reimbursement restrictions, and referral delays. Disciplinary differences were noted in perceptions of symptom persistence and professional roles. Rehabilitation technologies were inconsistently adopted due to financial, training, and interoperability barriers. Equity issues included geographic and insurance-based disparities. A four-domain conceptual framework emerged: discipline-specific expertise, coordinated training, technological integration, and care infrastructure, all shaped by systemic limitations. Conclusions: Despite widespread clinician endorsement of interprofessional mTBI care, structural barriers hinder consistent implementation. Targeted reforms—such as embedding interdisciplinary models in clinical education, expanding access to integrated technology, and improving reimbursement mechanisms—may enhance care delivery. The resulting framework provides a foundation for scalable, patient-centered rehabilitation models in diverse settings.
Read moreSpatial Differences in Potential Changes of Rock Loaded to Fracturing: Characteristics and Mechanism
    Electrical signal changes in process of loading rock to fracturing is an important rock petrophysical phenomenon, which is of great significance for understanding the abnormal electric field, magnetic field and electromagnetic radiation related to rock fracturing, geohazards and tectonic earthquake. Positive holes (P-holes) activation due to the broken of peroxy defects is one of the important mechanisms causing rock current, and peroxy defects are common in most of the crust rocks. During the loading of rock specimen, the activation, transmission and accumulation of P-holes in different place inside the rock are bound to be variable, and present as the spatial difference in the changes of electrical signals. However, the spatial differences in the changes of electrical signals during loading rock to fracturing and the correlation between the electrical signal and the internal physical-and-mechanical states of rock have not been well studied so far.    Therefore, we carried out potential monitoring experiments in different areas of the rock under local stress and synchronous acoustic emission monitoring. The rock specimen was specially designed in 3D shape of cube-frustum. The lower cube acting as the loaded part was wrapped with copper foil and connect to the negative electrode of the potentiometers; while the upper square frustum acting as the free part were pasted with copper foil at three places and connect to the positive electrode of potentiometers, respectively, as in Fig. 1a.    The experimental results, as in Fig. 1b, showed that during the early rock loading, the characteristics of potential changes in each area were basically the same, with slight differences in amplitude, which were directly related to the size of micro-crack development area in the corresponding part. When the loaded rock reached to macroscopic fracturing and got failure, the characteristics of potential change in different areas were significantly different (Fig. 1c), which were directly related to the formation of macroscopic fracture inside. When no macroscopic fracture surface was formed at the intersection zone of the free part and the loaded part below the potential monitoring area, P-holes would transmit upward to the upper surface of frustum along the stress gradient, resulting in the rise in potential. Conversely, if a macroscopic fracture surface was formed at the intersection zone (Fig. 1d), the upward transmission of P-holes would be blocked, and more P-holes reached the surface of the loaded cube, resulting in the decrease in potential. Furthermore, we kept loading the rock fragments after macroscopic failure, and found that during the friction or the relative slip process between fragments, the combined influence of furrow effect, adhesive friction and slip shear also led to P-holes activation and dislocation sliding, resulting in potential rising again. The potential risings in different areas were related to the degree of friction and the distribution of macroscopic fracture surfaces in the corresponding parts.Figure 1 Experimental schema diagram and results. (a) Diagram of the experimental schema; (b) The variations of potentials; (c) Potential changes when the rock got failure; (d) Failure pattern. 
Read moreFusing Audio and Metadata Embeddings Improves Language-Based Audio Retrieval
Matching raw audio signals with textual descriptions requires understanding the audio's content and the description's semantics and then drawing connections between the two modali-ties. This paper investigates a hybrid retrieval system that utilizes audio metadata as an additional clue to understand the content of audio signals before matching them with textual queries. We experimented with metadata often attached to audio recordings, such as keywords and natural-language descriptions, and we investigated late and mid-level fusion strategies to merge audio and metadata. Our hybrid approach with keyword metadata and late fusion improved the retrieval performance over a content-based baseline by 2.36 and 3.69 pp. mAP@10 on the ClothoV2 and AudioCaps benchmarks, respectively.
Read moreComing Back Together: A Qualitative Survey Study of Coping and Support Strategies Used by People to Cope With Extended Difficulties After the Use of Psychedelic Drugs
Coming back together: a qualitative survey study of coping and support strategies used by people to cope with extended difficulties after the use of psychedelic drugs.
Read morePerception des mathématiques et de la résolution de problèmes par les élèves à Genève
Introduction et ancrage théoriqueAfin de compléter notre étude sur la résolution de problèmes de mathématiques, il nous a semblé important de sonder les destinataires principales et principaux de l’enseignement des mathématiques, à savoir les élèves genevois·es. Nous avons ainsi conçu un questionnaire visant à documenter la perception des mathématiques et de la résolution de problèmes par les élèves de la fin du prima
Read moreA Sequential Method for Automotive Millimeter-Wave Radar Self-Calibration Based on Optimization
<div class="section abstract"><div class="htmlview paragraph">Implementation calibration of automotive radar systems plays a fundamental but crucial role to guarantee sensor performance. The commonly used method relies on the environment such as a specific test station for static calibration or a straight metal guardrail for dynamic calibration. In this paper, a sequential method for estimating the radar angle misalignment derived from the Lagrange Multiplier Method in solving an optimization problem is proposed. The sequential method, which requires radar measurements and vehicle speed measurements as input, is more environment-free and can yield a consistent estimation. A simulation study is conducted to validate the consistency and analyze the influence of noise. The result shows that the radar azimuth measurement noise has little influence that the bias could be compensated and the effect of non-gaussianity is negligible. The radar velocity measurement noise bias and vehicle speed measurement noise bias have a linear effect whose coefficient depends on the radar orientation on the angle misalignment estimation. A real road testing is carried out and the result demonstrates that the method proposed could provide an estimation with an error no more than 0.26 degrees. An artificial error with 1 degree is added to the calibration result of the proposed method to study the miscalibration influence on sensor fusion based on the neural net. The result shows that the precision and recall deteriorate significantly with the artificial error, especially for the small targets like pedestrians, the reduction could reach 14% for precision and 17% for recall.</div></div>
Read moreSharing Earthquake Narratives: Making Space for Others in our Autobiographical Design Process
As interaction designers are venturing to design for others based on autobiographical experiences, it becomes particularly relevant to critically distinguish the designer's voice from others' experiences. However, few reports go into detail about how self and others mutually shape the design process and how to incorporate external evaluation into these designs. We describe a one-year process involving the design and evaluation of a prototype combining haptics and storytelling, aiming to materialise and share somatic memories of earthquakes experienced by a designer and her partner. We contribute with three strategies for bringing others into our autobiographical processes, avoiding the dilution of first-person voices while critically addressing design flaws that might hinder the representation of our stories.
Read moreCommentary: Sweet taste is complex: Signaling cascades and circuits involved in sweet sensation
Black was awarded the Nobel prize in Physiology or Medicine for the science behind the two blockbuster drugs of the twentieth century: propranolol (a beta blocker) and cimetidine (a histamine receptor antagonist). His Nobel lecture (Black, 1989) , entitled Drugs from emasculated hormones: the principle of syntopic antagonism, vividly entertained the idea of a two-stage process for creating blockers. This process consisted in fruitful receptor binding without subsequent transducer action, and thus separated and exploited these two stages. Black and Leff (1983) had previously published a mathematical model that provided parameters for the two stages called affinity and efficacy and these refer to the initial receptor binding and the subsequent participation of a transducer, such as a G-protein. The possible common evolutionary ancestry of the mechanisms for heart stimulation, vision, taste, and
Read more