1,721,897 research outputs found
Census data, Diversity values, Lithology, Radiocarbon age
No full textContain of foraminiferal census data from our core sub-samples and data from Suriadi et al. 2019 (modern/surface); diversity values; lithology; and radiocarbon age
Process mining for clinical processes: a comparative analysis of four Australian hospitals
No full textBusiness process analysis and process mining, particularly within the health care domain, remain underutilized. Applied research that employs such techniques to routinely collected health care data enables stakeholders to empirically investigate care as it is delivered by different health providers. However, cross-organizational mining and the comparative analysis of processes present a set of unique challenges in terms of ensuring population and activity comparability, visualizing the mined models, and interpreting the results. Without addressing these issues, health providers will find it difficult to use process mining insights, and the potential benefits of evidence-based process improvement within health will remain unrealized. In this article, we present a brief introduction on the nature of health care processes, a review of process mining in health literature, and a case study conducted to explore and learn how health care data and cross-organizational comparisons with process-mining techniques may be approached. The case study applies process-mining techniques to administrative and clinical data for patients who present with chest pain symptoms at one of four public hospitals in South Australia. We demonstrate an approach that provides detailed insights into clinical (quality of patient health) and fiscal (hospital budget) pressures in the delivery of health care. We conclude by discussing the key lessons learned from our experience in conducting business process analysis and process mining based on the data from four different hospitals.Andrew Partington, Moe Wynn, Suriadi Suriadi, Chun Ouyang, Jonathan Karno
Strengthening and formally verifying privacy in identity management systems
No full textIn a digital world, users’ Personally Identifiable Information (PII) is normally managed with a system called an Identity Management System (IMS). There are many types of IMSs. There are situations when two or more IMSs need to communicate with each other (such as when a service provider needs to obtain some identity information about a user from a trusted identity provider). There could be interoperability issues when communicating parties use different types of IMS. To facilitate interoperability between different IMSs, an Identity Meta System (IMetS) is normally used. An IMetS can, at least theoretically, join various types of IMSs to make them interoperable and give users the illusion that they are interacting with just one IMS. However, due to the complexity of an IMS, attempting to join various types of IMSs is a technically challenging task, let alone assessing how well an IMetS manages to integrate these IMSs. The first contribution of this thesis is the development of a generic IMS model called the Layered Identity Infrastructure Model (LIIM). Using this model, we develop a set of properties that an ideal IMetS should provide. This idealized form is then used as a benchmark to evaluate existing IMetSs. Different types of IMS provide varying levels of privacy protection support. Unfortunately, as observed by Jøsang et al (2007), there is insufficient privacy protection in many of the existing IMSs. In this thesis, we study and extend a type of privacy enhancing technology known as an Anonymous Credential System (ACS). In particular, we extend the ACS which is built on the cryptographic primitives proposed by Camenisch, Lysyanskaya, and Shoup. We call this system the Camenisch, Lysyanskaya, Shoup - Anonymous Credential System (CLS-ACS). The goal of CLS-ACS is to let users be as anonymous as possible. Unfortunately, CLS-ACS has problems, including (1) the concentration of power to a single entity - known as the Anonymity Revocation Manager (ARM) - who, if malicious, can trivially reveal a user’s PII (resulting in an illegal revocation of the user’s anonymity), and (2) poor performance due to the resource-intensive cryptographic operations required. The second and third contributions of this thesis are the proposal of two protocols that reduce the trust dependencies on the ARM during users’ anonymity revocation. Both protocols distribute trust from the ARM to a set of n referees (n > 1), resulting in a significant reduction of the probability of an anonymity revocation being performed illegally. The first protocol, called the User Centric Anonymity Revocation Protocol (UCARP), allows a user’s anonymity to be revoked in a user-centric manner (that is, the user is aware that his/her anonymity is about to be revoked). The second protocol, called the Anonymity Revocation Protocol with Re-encryption (ARPR), allows a user’s anonymity to be revoked by a service provider in an accountable manner (that is, there is a clear mechanism to determine which entity who can eventually learn - and possibly misuse - the identity of the user). The fourth contribution of this thesis is the proposal of a protocol called the Private Information Escrow bound to Multiple Conditions Protocol (PIEMCP). This protocol is designed to address the performance issue of CLS-ACS by applying the CLS-ACS in a federated single sign-on (FSSO) environment. Our analysis shows that PIEMCP can both reduce the amount of expensive modular exponentiation operations required and lower the risk of illegal revocation of users’ anonymity. Finally, the protocols proposed in this thesis are complex and need to be formally evaluated to ensure that their required security properties are satisfied. In this thesis, we use Coloured Petri nets (CPNs) and its corresponding state space analysis techniques. All of the protocols proposed in this thesis have been formally modeled and verified using these formal techniques. Therefore, the fifth contribution of this thesis is a demonstration of the applicability of CPN and its corresponding analysis techniques in modeling and verifying privacy enhancing protocols. To our knowledge, this is the first time that CPN has been comprehensively applied to model and verify privacy enhancing protocols. From our experience, we also propose several CPN modeling approaches, including complex cryptographic primitives (such as zero-knowledge proof protocol) modeling, attack parameterization, and others. The proposed approaches can be applied to other security protocols, not just privacy enhancing protocols
Buku pegangan praktek klinik : asuhan keperawatan pada anak/ Suriadi
No full textx, 311 hal. : ill. ; 24 cm
Buku pegangan praktek klinik : asuhan keperawatan pada anak/ Suriadi
No full textx, 311 hal. : ill. ; 24 cm
Private information escrow bound to multiple conditions
No full textWe propose two variants of a protocol that provides\ud
users' private information escrow capability bound to\ud
multiple set of conditions in a federated single sign-on\ud
environment using trusted platform module (TPM)\ud
and secure processor technologies. The first variant\ud
assumes the existence of a trusted anonymity revo-\ud
cation manager, while the second variant does not.\ud
Cryptographic techniques, such as identity-based re-\ud
encryption and custodian-hiding encryption, are ap-\ud
plied in our protocol. A performance analysis of\ud
our protocol is provided to show that our protocol\ud
achieves a better performance in comparison to the\ud
existing anonymous credential approach. This is es-\ud
pecially true when a user interacts with many service\ud
providers in a session. The security properties pro-\ud
vided by both variants of our protocol are discussed
Buku pegangan praktek klinik : asuhan keperawatan pada anak/ Suriadi
No full textx, 311 hal. : ill. ; 24 cm
Information Security and Privacy: 22nd Australasian Conference, ACISP 2017 Auckland, New Zealand, July 3–5, 2017 Proceedings, Part I
No full textACISP: Australasian Conference on Information Security and Privacy: Information Security and Privac
Conditional privacy using re-encryption
Full text linkThis paper1 proposes, for the first time, the use of re-encryption scheme to improve users privacy in a privacy-enhancing system. Firstly, a secure protocol to distribute a re-encryption key from a user A to a ser-vice provider B, with the help of n referees, is pro-posed. Next, this re-encryption key distribution protocol is combined with an existing private credential system to provide a protocol for conditional revocation of private information. This protocol has a strong accountability property with efficient online performance. It does not assume the existence of a single trusted entity. We toler-ate up to t dishonest referees (t ≤ n − 1), while A and B are dishonest and do not trust each other. 1
Pemanfaatan POC Biourine Plus Pestisida Nabati untuk Meningkatkan Hasil Bawang Merah dalam Sistem Pengairan Leb dan Sprinkler di Lahan Kering Kabupaten Lombok Timur, NTB
Full text linkSugianti T, Hadiawati L, Suriadi A, Sulistyawati Y. 2020. Utilization of POC Biourine plus natural pesticide to increase shallot yield under furrow and sprinkler irrigation of dryland east Lombok, NTB province. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The use of local resources as fertilizers and naturalpesticides (pesnab) is one of the shallotcultivationpracticesthat were environmentally friendlyin dryland. This study aims to measure the increase in shallot yield by the application of Biourin liquid organic fertilizer (POC) mixed with naturalpesticides underthe sprinkler irrigation system. The field experiment was carried outatSandubayadryland (46 masl)ofPringgabaya District, East Lombok Regency, West Nusa Tenggara (NTB) from June to November 2018. The experiment used a factorial randomized block design with two factors and three replications. The first factor wasof shallotsgrown in the furrowirrigation system (A) and the sprinkler irrigation system (B). The second factor was the spraying of POC biourin plus soursop leaf extract (P1), POC biourin plus neem leaf extract (P2), POC biourin plus tobacco leaf extract (P3), POC biourin without extract as a control (P0). The results of the experiment showed that the effect of the treatment’s interaction weresignificantly different on the parameters of plant height at 20 and 60 days after planting (DAP), plant’sfresh weight, sundried weight loss, and shallot bulb’sseed weight. The fresh weight of shallots was higher in the sprinkler irrigation system (3.27 kg / m2) than in the furrowirrigation system (2.70 kg / m2). The highest dry weight of shallots was obtained in the application of POC biourin plus soursop leaf extract in the sprinkler irrigation system at 1.79 kg/m2whichwas 37.99% highercompared to the control.
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